Fine Arts
The Impacts of Distress and Perceived Social Support on Heart Rate Variability
Authors: Mikel Cressman, Jackie Richey, Dantzel Petersen Hancey, Bianka Geraldo, Kayden Barlow, Ainsley Lumsden, Olivia Hubble. Mentors: Patrick Steffen. Insitution: Brigham Young University. Heart rate variability or HRV is a measure of the amount of time between a person’s heartbeats and is related to their physiological response to stress. Social support is an important component of positive health outcomes and plays a part in mediating distress. More research is needed to better understand the connection between HRV, social support and distress. We hypothesize that those with low baseline HRV will have higher distress scores and lower social support than those with high baseline HRV. We also hypothesized that someone with high distress and high social support will have higher HRV than those with high distress and low social support. In this study, social support was measured using the Multidimensional Scale of Perceived Social Support (MSPSS), distress was measured using the Counseling Center Assessment of Psychological Symptoms (CCAPS), and baseline HRV was measured using a NEXUS biofeedback device using ECG leads on the collarbones and left rib. Our sample consisted of 236 college students (17-28 years old; 57.6% female; 85.9% white) drawn from an online recruiting software and student development classes. For the first hypothesis, we will use a MANOVA to compare both low and high HRV baseline with mean MSPSS and CCAPS scores. We will use an ANOVA to compare differences in HRV between those with high MSPSS and high CCAPS scores to those with low MSPSS and high CCAPS for the second hypothesis. We expect to find that those in the lower HRV group will have higher CCAPS scores and lower MSPSS scores when compared to the high HRV group. We also expect to find that participants in the high CCAPS and high MSPSS group will have a higher HRV when compared to the high CCAPS and low MSPSS group.
Bloom-B-Gone: Preventing Utah Lake Toxic Blooms by Phosphorous and Nitrogen Sequestration
Authors: Elise Bennett, Zenos Thoreson, Blaise Bartlett, Jacob McFadden, Melanie Rosa, Nathan Walker, Logan Fenn, Eric Domyan, Colleen Hough. Mentors: Eric Domyan, Colleen Hough. Insitution: Utah Valley University. A team of 13 biotech students competed in the international Genetically Engineered Machine (iGEM) competition in Paris, France in the Bioremediation category. The iGEM Foundation is a non-profit organization whose purpose is to promote education and collaboration for the advancement of synthetic biology. The Grand Jamboree is a 4-day expo where students, academics, investors, industry representatives, journalists, and the public gather while student teams from around the world compete for medals and awards by following the engineering cycle, design, build, test, learn (DBTL) with living organisms. Our team chose to focus on bioremediation of Utah Lake because, not only is it a local issue, it is also used worldwide as an example of toxic algal blooms. Excess nutrient loading in Utah Lake is causing eutrophication, which leads to increased algal blooms that produce toxins hazardous to human, animal, and aquatic life. The excess nutrients are composed mostly of nitrogen and phosphorous compounds that enter the lake primarily from wastewater treatment plants, runoff fertilizer, and naturally occurring inorganic environmental sources. Our goal is to reduce the nutrient load of wastewater entering the lake by engineering a harmless organism to sequester phosphorus and convert nitrogenous compounds to atmospheric nitrogen, which is biologically inert. We chose the microalgae Chlamydomonas reinhardtii as the chassis for the genetically engineered machine. A second, long-term goal would be to turn the sequestered nutrients into a product that is usable to the local community. We have a responsibility to the local community, native people, plants, and animals to restore Utah Lake to its natural beauty to be respectably and responsibly shared by all.
Does talking about Suicidality help all populations? The data points to Yes
Authors: Elizabeth Smith, Melissa Chavez. Mentors: Jared Neilsen. Insitution: Brigham Young University. Suicidality is a growing public health issue, especially in a neurodiverse population. Suicidality rates are higher among a sample of people with ASD (Demirkaya et al., 2016). While the full causes of why people with ASD tend to be more suicidal are unknown, there are people who are trying to address this with different treatments. Some of the treatments that are being used work in neurotypical people. However, there is a lack of treatment use for those of nuerodiverse populations. One of the areas that we know decreases suicidality is talking about it more, which is contrary to the prevalent myth that talking about suicidality increases rates of suicidal tendencies (Dazzi et al. 2014). Knowing that suicidal tendencies are decreased by talking about suicide, we set out to answer the question: Is the same true for neurodiverse populations who are at more risk for suicide? We recruited a total of 72 participatns, 27 from the ASD community, 20 with social anxiety, and 25 neurotypical people (to act as a control group). To answer this question, we sent out nightly surveys that included questions about suicidality as well as having them come in every 6 weeks to administer the Columbia Suicide Severity Rating scale. For the participant’s first visit, we administered the lifetime version, and then at every other visit, we administered the 6 week version. We then compiled the scores and ran them through R. We found that the scores decreased (i.e. participants were less suicidal) across the visits. This indicates that suicidality is lessened through talking about suicide for neurodiverse populations. Further research is needed to confirm this. While the findings from this study are positive, they need to be considered in the light of several limitations such as attrition from the participants and the recency bias on the part of the students.
Feelings about Modesty and the Prevalence of Eating Disorders in Latter-Day Saint Men and Women
Authors: Kate Binford, Marissa Roper, Brynn Eyre. Mentors: Sarah Coyne. Insitution: Brigham Young University. The purpose of this study is to examine the relationship between personal feelings about modesty and the prevalence of eating disorders (EDs) among Latter-day Saint (LDS) men and women. Participants were recruited through social media and announcements on LDS-specific social media pages. The study has a final sample of n=1,271, 431 of which (33%) had an ED. There is a significant positive correlation between feelings of shame about modesty and the prevalence of EDs (r=0.11, p<.001). This means that, in general, more feelings of shame about modesty are related to a higher prevalence of EDs. Implications of these findings indicate that it may be helpful to reduce any shame-based teachings around modesty in order to protect against EDs.
Influence of Childhood Levels of Self Control on Adolescent Sleep Outcomes
Authors: Jacalyn Richey, Hayley Pierce. Mentors: Hayley Pierce. Insitution: Brigham Young University. Good sleep habits and effective self-control are important components of successful functioning. Unfortunately, chronic sleep loss is a common concern in adolescence as both their autonomy and demands on their time increase. This loss of sleep impacts neural and physical development and is connected with increased mental illness, delinquency, and academic difficulties. Self-control may aid in the prioritization of sleep by curbing impulsive desires and improving decision making around adhering to bedtimes. This study drew on data from the Future of Families and Childhood Wellbeing Study (FFCWS) measuring self-control at age 9 and sleep outcomes at age 15 (N = 3,444; 48.7% female; 49% Non-Hispanic Black). Multivariable analyses indicated that self-control showed statistically significant relationships with social jetlag, falling asleep, and having a regular bedtime after controlling for several relational and economic factors. Improving childhood self-control habits and skills through modeling and instruction may lead to increased positive sleep outcomes, which may increase healthy development in adolescence and beyond.
How Depression Affects “Feeling the Spirit” in College Age Latter-Day Saints
Authors: Nadia Mando, Josh Shaeffer, Jared Nielsen. Mentors: Jared Nielsen. Insitution: Brigham Young University. Background: “Feeling the Spirit” is an important experience for many active Latter-Day Saints. Feeling the Spirit is often defined by the presence of positive, even if minor, feelings which are perceived to be interactions with deity. However, some Latter-Day Saints struggle to feel the Spirit which can be distressing to them. Recently, LDS leaders have focused on understanding how depressed individuals might experience “feeling the Spirit” differently.Objective: Our pilot study sought to understand the relationship between depression and the frequency and strength of spiritual experiences.Methods: We used the Depression Anxiety Stress Scale-21 (DASS21) to measure depression. We created two separate measures to inquire how frequently and strongly participants felt the Spirit in the last six months. We also created a task asking participants to read multiple scripture passages and report how strongly they felt the Spirit while reading each passage. Responses to each passage were averaged to create a state measure of feeling the Spirit. We hypothesized that higher scores of depression would predict lower scores on feeling the Spirit for all three measures.Results: We found that scores on depression (M=11.388, SD=7.844) significantly correlated to frequency (M=3.683, SD=0.760, r= -0.352, p<.001) and strength (M=4.004,SD=0.628, r=-0.453, p<.001) of the Spirit. However, depression scores were not significantly correlated with our state measure (M=2.384, SD=0.903, r=-0.192, p=0.078). In our regression models we found that depression is a significant predictor of both frequency (R2= 0.091, F(1,83)=8.347, p=.005, =-0.029, p=.005) and strength (R2=0.158, F(1,83)=15.523, p<.001, = -0.032) of feeling the Spirit but, not of feeling the Spirit during the scripture task (R2=0.003, F(1,83)=0.236, p=0.628, = -0.463).Conclusion: These findings suggest that depression may affect how LDS persons experience their relationship with God. Our findings take a step toward explaining why some individuals may experience difficulty in “feeling the Spirit”. Future studies are necessary to elucidate these preliminary findings.
Investigating the Effectiveness of Incentivized Efficient Watering Practices in 5 Western States with Focus on Utah
Authors: Ashley Swensen, Ruth Kerry. Mentors: Ruth Kerry. Insitution: Brigham Young University. The American West has been experiencing severe drought for over 20 years with changes in climate. Also, the population in certain states has greatly increased putting increasing pressure on the limited fresh water supply. While the agricultural sector is the biggest consumer of freshwater, much is also used to irrigate turfgrass lawns in urban residential areas. The EPA has estimated that about 50% of household irrigation water is wasted by temporal and spatial misapplications. Temporal misapplications can be reduced by using smart sprinkler controllers that take into account recent weather when scheduling irrigation timing. This research investigates people’s willingness to implement more efficient watering practices with and without incentives. It also investigates how an average water bill for a quarter acre lot varies between states and between cities within 5 states in the semi-arid west (AZ, CO, ID, NV, UT). Following comparison of average water bills between states and cities, the potential savings from taking advantage of water saving incentives offered by cities is investigated. The research found differences between the genders and aridity zones in terms of the types of incentive that are favored and likelihood of utilizing methods to improve irrigation efficiency. Water bills were the highest in AZ and lowest in ID and UT. The low water bills in ID are likely associated with the greater prevalence of agriculture in that state than the others studied. Most UT cities had incentives for Smart Sprinkler controllers or to xeriscape. However, in other states several cities did not have incentives for installing Smart Sprinkler controllers. We conclude by trying to assess whether incentives or disincentives are more effective at reducing water use by residential customers.
The Physiological Effects of Capitalization in Ambivalent Marriages
Authors: Abigail Williams, Kelsie Minga, Abby Baker, Ella Sieg, Olivia Harris. Mentors: Wendy Birmingham. Insitution: Brigham Young University. Background: Research has found positive health benefits in the communication of positive events (capitalization) with others who respond with curiosity and enthusiasm. An expectation is that one’s spouse would respond in such a way. And indeed, if one has a highly supportive spouse this is likely the case. However, not all individuals have a highly supportive spouse and may have a spouse whose behavior is more ambivalent. Such ambivalent, or unpredictable behavior may lead to worse physiological outcomes when sharing good news including increased risk for cardiovascular events. Blood pressure should dip 10-15% overnight (“dipping”). A less than 10% dip is associated with higher cardiovascular disease risk. We looked at capitalization and dipping in ambivalent and supportive couples. Interpersonal Theory asserts that positive or negative behaviors from one spouse can elicit similar responses from the other spouse. Thus we looked at capitalization and dipping for spousal ambivalent behavior, and one’s own ambivalent behavior. Ambivalent behavior, whether one own’s or one’s spouse’s can also impact the quality of the relationship. Methods: 90 couples were recruited from a local university, social media, and the community. Participants completed measures of marital quality. They were fitted with an ambulatory blood pressure monitor for 24 hours. The monitor took a reading every 30 minutes during the daytime and once an hour overnight. Participants completed a daily diary entry each time the monitor took a reading during the daytime which included questions regarding their present activities (e.g., posture, current emotions, food consumption). Participants returned the equipment the following morning and were compensated. Results: Ambivalent behavior was associated with worse relationship quality measured as responsiveness, both in terms of one’s own behavior, and one’s spouse’s behavior. We found no association for systolic blood pressure (SBP) dipping for individuals whose spouse’s behavior was viewed as ambivalent, however diastolic blood (DBP) dipping was in the opposite direction showing ambivalent spousal behavior was associated with healthier dipping. Of interest, when one reported their own behavior as ambivalent when their spouse was sharing good news, their SBP dipping was unhealthy. Conclusions: Spousal ambivalent behavior seems to be less important than one’s own behavior on SBP dipping. This may be because one is generally aware of their own behavior and understands that such behavior is problematic for the relationship. This awareness, however, may come with a cost for their health as well as their relationship.
The Value of Relationship Education for Youth and Teenagers
Authors: Stefan Jezik. Mentors: Jocelyn Wikle. Insitution: Brigham Young University. Much preexisting relationship education is focused on adults and those already in romantic relationships. Due to the audience of this relationship education, it is often tailored to fit those experiencing relationship issues in their marriages or with their romantic partner. This form of relationship education frequently fulfills the role of a bandage to a wound, instead of fulfilling a preemptive role that could mitigate the number and severity of relationship problems from developing in the first place. While relationship education can be beneficial for any target audience, research has increasingly turned to this preemptive type of relationship education by recommending that institutionalized relationship education at the highschool level tailor its curricula to youth, teenagers, and emerging adults (Hawkins, 2017; Barber & Eccles, 2003).
The Effects of Anterograde Amnesia on Mnemonic Discrimination: A Single-Subject Case Study
Authors: Sara Knowlton, Sam Chipman, Samantha Stabler, Alex Osmond, Brock Kirwan. Mentors: Brock Kirwan. Insitution: Brigham Young University. The hippocampus is a brain structure involved in recognition memory and pattern separation, or the ability to disambiguate potentially interfering or overlapping memory representations. The Mnemonic Similarity Task (MST) has been used to assess memory specificity by asking participants to encode a series of objects and later perform a recognition memory test with repeated items (targets), similar but not exact repeats (lures), and novel items (foils). In a single-subject case study, we utilized the MST in evaluating recognition memory over various delays of a subject with anterograde amnesia. Subject MC is a healthy young adult female who underwent a unilateral amygdalohippocampectomy as a treatment for epilepsy. This procedure included the complete removal of her hippocampus in the right hemisphere, which we verified with magnetic resonance imaging. In addition to the MST, we compiled a battery of neuropsychological tests, including the Wide Range Assessment of Memory and Learning (WRAML-3), the Delis-Kaplan Executive Functioning System, and the Wechsler Abbreviated Scale of Intelligence (WASI-II) to more holistically assess MC’s memory deficits. Preliminary analyses showed significantly lower lure discrimination when compared with control subjects, indicating deficits in pattern separation. Further analysis of MC’s MST results are being conducted to evaluate her broader ability for recognition memory.
Creating a Surname Lexicon for Historical US Records
Authors: Spencer Timmerman. Mentors: Joseph Price. Insitution: Brigham Young University. We develop a method for creating a lexicon of all correctly spelled surnames in historical US records. We focus specially on the full-count 1850-1940 census records which include over 10 million unique spellings in the surname field. We use three steps to create this lexicon. First, we use links across multiple census records for the same individuals and use these links to identify spellings of the same surname. Second, we use data from a large genealogical website to help identify the correct surnames for each person and convert this into training data. Third, we develop a machine-learning approach that uses the frequency of surnames across different record collections to identify a lexicon of correctly-spelled surnames. Our final lexicon of correctly-spelled surnames only includes 500,000 of the 10 million unique found in US census records. We also provide a crosswalk that maps the majority of incorrect surnames into a unique surname in the lexicon.
Relationship Between Income and Lifespan Using Historical Data
Authors: Joseph Price, Britton Davis, Alexander Jenks. Mentors: Joseph Price. Insitution: Brigham Young University. Modern data show a strong positive relationship between community-level average income and life expectancy in the United States. We compile a dataset including place of residence, lifespan, and a proxy for income for 27 million unique individuals from the 1900-1940 censuses. In contrast to the pattern in modern data, we actually find that individuals living in an enumeration district with the top quartile of our proxy for income experienced shorter lifespans than those living in the bottom quartile. We show that this negative relationship was largest in the 1900 census and slowly shrank over the next four decades showing how this negative relationship evolved to the positive relationship we see today.
Safety and Fairness in the Courtroom
Authors: Ella Johnson, Aubria Soto, Andrew Bodily. Mentors: Chelsea Romney. Insitution: Brigham Young University. This study investigated the relationship between a sense of safety and a sense of fairness in the courtroom. In the Provo City Justice Court, court customers were offered an optional survey that covered questions about their experience in the courtroom. A section determining an individual’s ability to access the court and a section to see how fairly they felt they were treated were compared. The results reveal a significant positive association between a sense of safety and perceived fairness, indicating that when individuals felt safe in the courtroom they also tended to believe that their trial was conducted fairly (Pearson Correlation = 0.527). It was also found that for the Provo City Justice Court, most court attendees answered high on the scale for both access (M = 4.5/5) and fairness (M = 4.6/5) with 145 participants surveyed. Limitations include not surveying online court attendees and the potential bias of survey responses from those who felt dismissed during their sessions. The court experience can be improved through the creation of programs or measures that will increase not only the safety of the court customers but also their satisfaction with the perceived fairness of their trials.
The Influence of Problematic Media Use on Language Development
Authors: Allison Weston, Summer Snow, Sophia James. Mentors: Sarah Coyne. Insitution: Brigham Young University. As childrens’ minds develop, so does their language, however, the effect of media on language has yet to be firmly established. Our study searched for the effect of screen time on language development, and whether problematic media use (PMU) was a factor in normal or late development of language. Data was gathered from a sample (n=265) of 4 year old children using simple regression for problematic media use predicting language development while controlling for screen time. Although the correlation between screen time and language development has been studied, there is a gap in the literature regarding how PMU may relate to language development.
The Relationship Between Social Media and Body Image
Authors: Fiona Fox, Catherine Schumann, Cameron Monson. Mentors: Sarah Coyne. Insitution: Brigham Young University. Most often, research has looked at the negative effects of social media on mental health. The purpose of this study is to understand the interactions between social media usage and body image, and if there are any ways that social media has a positive impact on body image. This study surveyed children and youth ages 7-17 to gain insight on their social media use and different aspects of mental health. Social media preoccupation and mindfulness were both significantly correlated with body esteem, and a slightly significant correlation was found between positive social media use and body esteem. These findings suggest that mindfulness around social media usage can help mitigate the negative impact on body esteem that many youth experience. Parents can use these findings to have conversations with their children and teenagers about being mindful with social media use and avoiding preoccupation with it.
Experience impact and the influence of novelty, social connection, and positive emotions on tourist experiences
Authors: Braden Bringhurst, Michael Ray, Megan Barbier, Ellie Smith. Mentors: Peter Ward. Insitution: Brigham Young University. In travel, the interplay of social connection and novelty profoundly shapes the impact of peoples' experiences. This study examines novelty, positive emotions, social connection, and the impact of the experience on participants through the lens of the Self-Expansion Theory. Novelty is defined as the process of experiencing or encountering something different to the objects regularly encountered in everyday life. Social connection is defined as the affective and cognitive perception of interrelatedness within social groups, encompassing emotional responses like feeling understood and valued. Positive emotion is defined as pleasant multicomponent response tendencies, including joy, interest, contentment, pride, and love. Experience impact is defined using the experience typology. This typology starts with prosaic experiences or ordinary parts of life. The next progression is memorable experiences which introduce felt emotions into the experience. The next stage is meaningful which introduces discovery as well as emotions into the experience. The final stage is transformational which introduces a desire, or actual personal change happening to the experiencer as well as emotions and discovery. To measure the various stages of the experience typology framework, we use the Experience Impact Scale to identify the personal impact of a tourist experience. These various constructs are explored through the perspective of the Self-Expansion Theory which states that people seek to expand their potential efficacy, perspectives, and sense of self through the development of relationships. This study utilizes this theory by looking into novelty’s effect on the impact of an experience through the lens of Self-Expansion Theory with respect to social connection and positive emotions as mediating factors. The data were analyzed using structural equation modeling in AMOS v 28. Models were gradually expanded on, starting with the initial relationship between subjective novelty and experience impact. Later, a mediating model was considered that incorporated subjective connection and positive emotions as mediating effects on experience impact. The model examining the relationship between subjective novelty and experience impact as mediated by subjective connection and positive emotions had an acceptable model fit. The significant factors that contributed to the model were subjective novelty which had a standardized regression weight of .264, subjective connection which had a standardized regression weight of .222, and positive emotions which had a standardized regression weight of .256. The model explained 16% of the variance within experience impact. This study demonstrates that novelty influences social connection which influences positive emotion which positively impacts the tourist experience. People designing experiences should create a novel experience for the experiencer that evokes positive emotions and facilitates social connection. Future research could explore the relationship between the novelty of location and activities associated with tourist participation and the impact on the experience.
The Effects of a High Carbohydrate vs. High Fat Pre-Fast Meal on Incretin Hormone Secretion: A Randomized Crossover Study
Authors: Parker Graves, Landon Deru, Bruce Bailey. Mentors: Bruce Bailey. Insitution: Brigham Young University. Chronic illness such as strokes, heart disease and diabetes all rank among the leading causes of death in the United States. Recently, fasting has gained popularity as a means of preventing and treating chronic illness. PURPOSE: Fasting produces multiple beneficial physiological responses that have been shown to aid in chronic disease prevention, one of which is observed in relation to incretin hormones such as glucose-dependent insulin tropic polypeptide (GIP) and glucagon-like peptide-1 (GLP-1). These incretin hormones are released by the gut to augment the secretion of insulin to regulate postprandial glucose levels. During a fast, the decrease in incretin hormones, and resultant insulin levels can aid the body to regain insulin sensitivity. This can lead to more effective blood glucose management and chronic illness prevention. The purpose of the study was to determine the impact of an acute 24-hour fast started with either a high fat (HF) or high carbohydrate (HC) meal on plasma GIP and GLP-1. METHODS: Subjects were over the age of 55, had a BMI equal to or greater than 27, and had no diagnosed metabolic disorders or some other disqualifying medical issues. Using a randomized crossover design, each participant performed two 24-hour fasts. One fast beginning with a high carbohydrate meal and the other a high fat meal, both of equal calories. Venous blood draws were taken at 0, 1, 24, and 48 hours. RESULTS: GIP and GLP-1 (P < 0.001) were both elevated 1 hour after consuming the pre-fast meal in both conditions. In addition, both GIP (P = 0.0122) and GLP-1 (P = 0.0068) were higher in the high fat condition compared to the high carbohydrate condition at 1 hour. There were no significant differences between conditions for either GIP or GLP-1 at any other time point. CONCLUSION: As expected, both incretin hormones spiked postprandially. We did find that GIP and GLP-1 levels were significantly higher at 1-hour postprandial for the HF meal compared to the HC meal. This could give evidence to show how macronutrient levels can affect incretin secretion and alter sensitivity to insulin. However, the impact of the pre-fast meal on GLP-1 and GIP did not persist throughout the fast.
Investigating Gender Differences in Facial Expressiveness during Personal Narratives Using a Modified FACES Protocol
Authors: Leila Moore, Marin Farnsworth. Mentors: Tyson Harmon. Insitution: Brigham Young University. Background:Facial expressions are crucial for understanding human emotions in communication. Coding and quantifying these expressions, however, have often been subjective, leading to issues with reliability and consistency (Kring and Sloan, 2007). To address this, we have modified the Facial Expression Coding System (FACES) protocol (Kring and Sloan, 2007), which traditionally relies on subjective interpretation. Our modified protocol employs a more objective approach by quantifying facial expressions based on the counting of facial units (e.g., eyes, corners of the mouth, eyebrows, and teeth). Each intensity rating corresponds to a certain number of facial units. For example, an expression involving one facial unit would receive an intensity rating of one whereas an expression involving two units would receive an intensity rating of two. Multiple studies have found that women are more emotionally expressive than men overall when considering gestures, body language, facial expressions, and tone of voice (Ashmore, 1990; Brody & Hall, 1993; Hall, 1984). Rather than focusing on overall emotional expressiveness, though, the present study aims to understand how gender impacts the production of emotional facial expressions specifically. Method:The proposed study aims to compare the frequency and intensity of facial expressions produced by men versus women when recounting personal narratives. Participants. Video footage from participants with and without aphasia producing personal narrative discourse will be obtained for equal numbers of male and female participants. Samples will include two personal narratives in response to prompts from the interviewer. The first prompt is to speak of an experience the participant has had with illness/injury/stroke, and the second prompt is to talk about an important event that has happened in their life. Procedure. A modified FACES protocol will be used to code facial expressions in videos obtained from AphasiaBank. The coding process is conducted with the audio muted to help eliminate distractions. The modified FACES protocol includes specific, operationalized criteria for what qualifies as a facial expression. This protocol does not include coding non-facial gestures or eye movements. However, we do take into account the narrowing and widening of eyes in addition to instances when the eyes are opened or closed with intention. A critical question we ask during coding is whether the facial expression conveys emotional content. We have established standards for intensity ratings and will outline how we arrived at these standards, as well as the distinctions between intensity ratings one, two, three, and four. The analysis process includes establishing a baseline expression for each participant and coding for 20 minutes before taking a break to maintain energy and productivity and to ensure accuracy in data collection. Additionally, secondary coding and a final pass for gestalt ratings are performed to ensure comprehensive analysis.Data Analysis. To address our research questions, we will conduct a comprehensive analysis, focusing on our participants' facial expressiveness during personal narrative storytelling. The analysis will involve quantifying the frequency of facial expressions exhibited by the participants. Additionally, we will consider the valence of these expressions, distinguishing between positive and negative emotional content. We will also assess the intensity of facial expressions by counting the number of facial units engaged during each expression. This examination of facial data will allow us to discern not only the prevalence of expressions but also emotional content and intensity, ultimately providing a more in-depth understanding of the gender differences in non-verbal communication during personal narratives.Anticipated Results:Our study aims to explore if there is a statistically significant difference in the quantity, valence, and intensity of facial expressions between men and women. By using a standardized approach for measuring emotional facial expression production, we hope to shed light on the nuances of non-verbal communication during personal narratives and contribute to a better understanding of gender differences in emotional expression. Consistent with previous research, we anticipate that females will produce more frequent and intense emotional facial expressions than males (Ashmore, 1990; Brody & Hall, 1993; Hall, 1984).References:Ashmore, R. D. (1990). Sex, gender, and the individual. In L. A. Pervin (Ed.), Handbook of personality: Theory and research (pp. 486-526). New York: Guilford Press.Brody, L. R., & Hall, J. A. (1993). Gender and emotion. In M. Lewis & J. M. Haviland (Eds.), Handbook of emotions (pp. 447-460). New York: Guilford Press.Hall, J. A. (1984). Nonverbal sex differences: Communication accuracy and expressive style. Baltimore: Johns Hopkins University Press.Kring, A. M., & Sloan, D. M. (2007). The facial expression coding system (FACES): Development, validation, and utility. Psychological Assessment, 19(2), 210–224. https://doi.org/10.1037/1040-3590.19.2.210.
Addressing Health Care Access Disparities: Bridging the Gap for a Healthier Society
Authors: Jayden Peacock. Mentors: Jodi Corser. Insitution: Southern Utah University. Healthcare access disparities remain a persistent and pressing issue in the community, disproportionately affecting marginalized communities. These disparities include aspects such as geographic location, socioeconomic standing, and ethnicity, all of which can hinder individual and societal growth. Addressing these disparities is vital as it can improve the well-being of individuals and therefore society. Examining the nature of healthcare access disparities helps present a holistic approach that can help bridge the gap, providing a more equitable healthcare system. Healthcare disparities are deeply embedded in the network of social and structural inequalities, driven by a complex interplay of geographical, economic, and cultural factors. Such disparities create health gaps, where individuals from marginalized communities are disproportionately burdened by a lack of access to essential medical services. The historical neglect of underserved communities has contributed to the persistence of these disparities, necessitating a comprehensive and transformative approach to address the problem.Effectively combating healthcare access disparities includes implementing community involvement that empowers underserved communities, enacting healthcare policy reforms to address systemic barriers, and leveraging locum tenens to improve access to care in all areas. Addressing these aspects will lead to a more equitable and inclusive healthcare system, that results in improved health outcomes and well-being for all individuals. Addressing healthcare access disparities is essential for individual and community improvement. Through community engagement, healthcare reforms, and the use of locum tenens a comprehensive approach can be represented in regards to a more equitable and inclusive healthcare system.
The Cold, Hard Truth: Cryopreserved Tissue is Superior to FFPE Tissue in Molecular Analysis
Authors: Ken Dixon, Jack Davis, DeLayney Anderson, Mackenzie Burr, Peyton Worley, Isaac Packer, Bridger Kearns, Jeffrey Okojie. Mentors: Jared Barrott. Insitution: Brigham Young University. IntroductionPersonalized cancer care requires molecular characterization of neoplasms. While the research community accepts frozen tissues as the gold standard analyte for molecular assays, the source of tissue for all testing of tumor tissue in clinical cancer care comes almost universally from formalin-fixed, paraffin-embedded tissue (FFPE). Specific to genomics assays, numerous studies have shown significant discordance in genetic information obtained from FFPE samples and cryopreserved samples. To explain the discordance between FFPE samples and cryopreserved samples, a head-to-head comparison between FFPE and cryopreserved tissues was performed to analyze the DNA yield, DNA purity, and DNA quality in terms of DNA length.MethodsHuman (n = 48) and murine tissues (n = 10) were processed by traditional formalin fixation and paraffin embedding or placed in cryovials containing HypoThermosol solution. 19 human-matched samples were included. These cryovials were cooled to -80°C slowly and stored in liquid nitrogen until the time of the study. DNA was extracted using the same protocol for both tissue types except that tissues embedded in paraffin were first dewaxed using a xylene substitute followed by a multistep rehydration protocol using ethanol and water. Samples were weighed and calibrated to have the same starting mass. After the column purification, samples were eluted in 20 µL and concentration and purity were measured on a Nanodrop. Purity was determined by calculating the 260/280 ratio. DNA fragment length was measured on an Agilent Fragment Microelectrophoresis Analyzer.ResultsGraded amounts of tumor tissue (5- >50 mg) were used to determine the lowest starting material needed to extract 40 ng/mg of DNA. The average for both sample types reached the minimal threshold of 40 ng/mg. However, 74% of FFPE specimens failed to meet the minimum 40 ng/mg, whereas only 21% were below the threshold in the cryopreserved samples (Figure 1). In the cryopreserved group, the average DNA yield was 222.1 ng/mg, whereas 52.8 ng/mg was obtained from FFPE tissue. For DNA purity in cryopreserved tissues, the 260/280 ratio range was 1.09-2.13 with a mean of 1.79. The 260/280 ratio range in FFPE tissues was 0.85-2.76 with a mean of 1.65 (Figure 2). The DNA Quality Number(DQN) is a measurement of DNA fragment length and the percentage that exceeds the threshold of 300 bp. For FFPE, the DQN was 4.4 compared to a DQN of 9.8 for the cryopreserved samples (Figure 3). Setting a higher threshold of DNA length to 40,000 bp and measuring the area under the curve (AUC), it was observed that cryopreserved samples were 9-fold higher in fragments greater than 40,000 bp (Figure 4).ConclusionsCryopreserved cancer tissue provides superior quality assurance measurements of DNA over FFFPE. Treatment decisions based on molecular results demand accuracy and validity. The pathology community should support efforts to cryopreserve cancer biospecimens in the clinical setting to provide valid molecular testing results. The automatic pickling of tumor specimens in formalin is no longer an acceptable default.
Differences in Ultrasound Elastography Measurements Of The Patellar Tendon Using Pad vs No Pad and Of Dominant vs Non Dominant Legs
Authors: Ashley Allan, Mikayla Kimball, Noah Bezzant, Brent Feland, Josh Sponbeck. Mentors: Brent Feland. Insitution: Brigham Young University. BACKGROUND: Recent studies have shown that there are differences bilaterally in the cross sectional area of the patellar tendon for lead vs non lead extremities of athletes. Yet, little research can be found as to whether there is a difference that develops over one’s lifetime between the stiffness of the patellar tendons in the dominant vs non-dominant legs. Reliability has not yet been established for elastography in the patellar tendons, so we are continuously striving to gather more reliable data on shear-wave elastography of the patellar tendon. PURPOSE: The aim of this study was to assess whether there is a difference in the average patellar tendon stiffness as measured by ultrasound elastography using a pad vs no pad and differences between self reported non-dominant vs dominant knee of senior athletes over the age of 50. Dominance taken as reported in a modified KOOS (Knee Injury and Osteoarthritis Outcome Score) survey. METHODS: Data was collected from 15 active, senior aged volunteers at the Huntsman World Senior Games in St George, Utah, 2023. All subjects (mean age= 67.29 ± 6.26 yrs, height=175.44 ± 8.18 cm, weight=87.40 ± 12.21 kg) signed an approved consent and completed a modified KOOS survey. Following, they were seated on a table, with their backs against the wall directly behind them. They were seated so that their lower legs were hanging off of the table in a relaxed position. The patellar tendon was then imaged with a long axis view using ultrasound elastography. ANALYSIS: All data were analyzed using JMP ver16.2 with a repeated measured analysis of variance (ANOVA) to determine if differences existed between pad and no pad and between dominant and non- dominant legs. RESULTS AND CONCLUSION: There was a significant difference between (p=.0423) pad and no pad patellar tendon measurements, but no significant difference when comparing sides combined with pad and no pad, between dominant and non-dominant legs, although a trend for significance did exist, and we suspect that with more subjects analyzed, we will get more significance.
Assessing Eccentric Hamstring Strength in football Players: Muscle-Specific contributions
Authors: Logan McMaster, Joshua Sponbeck, Malorie Wilwand, A. Wayne Johnson. Mentors: A Wayne Johnson. Insitution: Brigham Young University. In the dynamic game of professional football, where split-second decisions and explosive movements often determine the outcome, players train all year round for optimal athletic performance. Paramount to this performance are the hamstring muscles including the semimembranosus (SM), semitendinosus (ST), and both the long and short head of the biceps femoris (BFLH and BFSH). They play pivotal roles in sprints, agility, jumping, and overall lower-body strength. Because of the critical nature of the hamstrings during functional activity, this study sought to determine which of these three muscles contributes the most to eccentric hamstring strength. Recognizing the correlation between muscle volume and muscle strength, this study compared maximal eccentric hamstring strength with the proportion of each isolated hamstring muscle's volume relative to the total hamstring muscle group volume. Doing so would identify which specific muscle contributes the most to eccentric hamstring strength. This study incorporated 74 male, collegiate football players representing all positions on the team. Maximal strength was assessed through Nordic hamstring curls and overall muscle volume was quantified using magnetic resonance imaging (MRI). Our results show no correlation (R^2<0.2) between maximal force output and proportional muscle volume for the ST, and the BFSH. Additionally, the correlations for these muscles were not statistically significant (P>0.05). The SM muscles had a weak negative correlation (R^2= -0.25) with eccentric hamstring strength that was statistically significant (P = 0.03). The BFLH proportional volume was positively weakly correlated (R^2= 0.22) with eccentric hamstring strength. This correlation was statistically non-significant (P = 0.06). This information shows that no hamstring muscle contributes more to eccentric hamstring strength than any other. Knowledge of this can be invaluable for clinicians and researchers to design comprehensive strength training programs that enhance the collective strength of the entire hamstring muscle group, ultimately optimizing the performance of football players.
Staying Hydrated - A Comparative Analysis of Humectants in Human Cadaveric Tissue
Authors: Rachel Prince, Joseph Monsen. Mentors: Jason Adams. Insitution: Brigham Young University. Humectants are an important class of compounds that attract and retain water within a cell. These substances are commonly used in skincare products to prevent the outer layers of the skin from drying out. Humectants also serve a similar purpose in tissue preservation and prevention of decomposition of cadaveric specimens. As there have been few comparative studies analyzing the effects of different chemicals on the preservation of cadaveric tissue, we designed an assay consisting of wet-dry analysis to compare the effects of four common humectants (2-phenoxy ethanol, glycerol, propylene glycol, and ethylene glycol) on water retention in various cadaveric tissues. These tissues include human skin, skeletal muscle, brain, liver, cardiac muscle, and lung tissue. In each experiment, the tissue was submerged in the humectant and then weighed before and after being placed in an incubator. From these values, we calculated the percent difference in tissue mass to determine the most effective humectant concentration for retaining moisture in the tissue. We first tested a concentration gradient for each humectant to determine the most effective concentrations for each humectant. Then we performed a second set of experiments to compare the ideal concentrations of the humectants under the same conditions in each tissue. In our preliminary experiments, we found that glycerol is the most effective in retaining moisture in several of these cadaveric tissues. As we finish our experimentation we plan to create a tissue library to provide an evidence-based standard for wetting solutions used in anatomy labs.
The effects of terminating a 24-hr fast with a low versus a high carbohydrate shake on hunger and appetite
Authors: Katelynn Hales, Katya Hulse, Spencer Hawes. Mentors: Bruce Bailey Jr.. Insitution: Brigham Young University. There is relatively little research examining the effect of intermittent fasting on hunger and appetite. The existing literature suggests a complex interaction between hormonal signals, subjective hunger, and actual eating behavior. Development of effective and sustainable protocols rests on understanding these relationships. Dietary protocols that involve continuous energy restriction have been shown to increase appetite. As intermittent energy restriction results from fasting protocols, there is reason to suspect that fasting may similarly impact hunger and eating behavior. However, some research suggests that ketogenic or very low energy diets may decrease hunger, making it unclear what the effects of fasting may be. Levels of ghrelin, the primary hunger hormone, typically increase over the course of a fast, whereas satiety hormones, like leptin, decrease. However, these hormonal changes do not always align with ratings of subjective hunger. There is some evidence that the post-fast meal may play a role in hunger and appetite. Different macronutrients have been shown to impact hormones, hunger, and satiety differently. Our study aims to determine how ending a fast with a high or low carb shake will influence hunger and satiety hormones and subjective hunger.
Transcriptomic Analysis of B cell RNA-seq Data Reveals Novel Targets for Lupus Treatment
Authors: Sehi Kim, Naomi Rapier-Sharman, Michael Told. Mentors: Brett Pickett. Insitution: Brigham Young University. Systemic Lupus Erythematosus is an autoimmune disease that produces autoantibodies affecting various body regions, including skin, joints, kidneys, brain, aerosol surfaces, blood vessels, etc., resulting in damaging organs and tissue. Patients commonly experience an elevated risk of bleeding or blood clotting, joint stiffness, pain, fatigue, and depression.Our study involved the collection of RNA seq data of B cells of both SLE patients and healthy people from the National Center for Biotechnology Information (NCBI) Gene Expression Omnibus (GEO) database. Subsequently, we employed the Automated Reproducible MOdular Workflow for preprocessing and differential analysis of RNA-seq data (ARMOR) workflow. The differentially expressed genes identified by ARMOR were then analyzed using SPIA (Signaling Pathway Impact Analysis) algorithm to find the pathways associated with lupus. We further utilized the Pathways2Targets algorithm to predict potential lupus treatments based on known protein-drug interactions.In our study on lupus patients, analysis using ARMOR, SPIA, and Pathways2Targets identified 10,000 differentially expressed genes and revealed their modulated pathways, providing insights into molecular cascades in lupus. Furthermore, we identified potential drug targets, finding the way for therapeutic interventions that ultimately led to the discovery of new drug treatments. We anticipate that our findings could be utilized for the benefit of lupus patients, further advancing personalized medicine strategies, holding promise for improving the quality of life for individuals grappling with this complex autoimmune disorder.
No Difference Found in Hamstring Strength Across Division I Football Positions
Authors: Spencer Jezek, Malorie Wilwand, Joshua Sponbeck, Hunter Jack, Kaden Kennard, A Wayne Johnson. Mentors: A Wayne Johnson. Insitution: Brigham Young University. Hamstring injuries are one of the most common injuries sustained in professional football with 800+ hamstring injuries per year. These hamstring injuries often occur between late swing (eccentric contraction) and early ground contact.PURPOSE: To investigate the correlation of eccentric hamstring strength to muscle volume across positional groups.METHODS:Athletes were divided into three homogeneous groups based on position (big (e.g., linemen), skill (e.g., receivers), combo (e.g., linebackers)). Seventy-three NCAA Division I football players participated (24 big, 37 skill, and 12 combo). Hamstring strength was collected for each leg while performing 3 Nordic curls on a Nordbord device. The peak force of each leg was summed for our data analysis. Collective hamstring volume for each athlete was found through MRI. RESULTS:A Pearson’s product correlation demonstrated an overall moderate correlation (r = 0.52, p < 0.0001) between hamstring muscle volume and strength, with skill players demonstrating a strong correlation (r = 0.66, p < 0.0001), combo players demonstrating a moderate correlation (r = 0.49, p < 0.0001), and big players demonstrating a weak correlation (r = 0.39, p < 0.0001). An ANOVA showed no statistically significant difference of hamstring strength between positional groups (p = 0.1074) relative to hamstring volume (p < 0.0001). CONCLUSION:The observed overall moderate correlation between hamstring strength and muscle volume across positional groups indicates that factors outside of muscle volume contribute to muscle strength. Our data also suggests that, regardless of position, hamstring muscle strength was similar when accounting for volume. Muscle volume was the best predictor of strength for the skill group. However, other factors should be considered, such as motor control factors. In the combo and big groups, these additional factors play a larger role.
Changes in receptor sensitivity in the ventral regimental area after morphine conditioning
Authors: Calista Greenwood, Ciera Sanders, Pacen Williams, Kaleb Gardner, Caylor Hafen, Hillary Wadsworth. Mentors: Jordan Yorgason. Insitution: Brigham Young University. Dopamine circuit function in the nucleus accumbens (NAc) and ventral tegmental area (VTA) is implicated in the reinforcing effects of drugs of abuse including opioids. Opioid receptor desensitization occurs during acute and prolonged exposure to opioids such as morphine, which may have long lasting effects on dopamine circuit function. Fast scan cyclic voltammetry (FSCV) was performed in mice that have undergone morphine behavioral conditioning. In NAc brain slices, morphine has no apparent direct effects on dopamine release. In contrast, morphine bath application increases VTA dopamine release, which is reversed by naloxone. Interestingly, morphine induced increases in VTA dopamine release were greater in morphine vs saline conditioned mice, supporting a model of circuit sensitization. Surprisingly, blocking voltage gated potassium channels resulted in a switch in morphine effects, where morphine reduced VTA dopamine release. Morphine treated mice had reduced sensitivity to morphine effects on dopamine release in the presence of potassium channel blockers, suggesting that potassium channels are underlying the increases in sensitivity observed in morphine conditioned mice. Experimental protocols were approved by the Brigham Young University Institutional Animal Care and Use Committee according to the National Institutes of Health Guide for the care and use of laboratory animals. Research was funded by Brigham Young University. There are no conflicts of interests to disclose.
Lesion Network Mapping of Anosognosia for Hemiplegia
Authors: Joseph Holmes. Mentors: Jared Nielsen. Insitution: Brigham Young University. BACKGROUND Anosognosia is characterized by a stroke victim’s inability to acknowledge their acquired physical deficits. Such patients could believe they can operate their limbs normally even when they cannot. Patients will often attribute other reasons to explain their deficit (unwillingness to move, a sprain, arthritis, etc).Previous research has reported damage from various brain areas, including several fronto-temporal-parietal areas, insula, and subcortical regions. Many studies suggest that the deficit is caused from impaired sensory feedback coupled with spared motor intentions, which involves premotor, sensory-motor regions, basal ganglia, temporal-parietal junction, insular cortex, and prefrontal cortex. The objective of this study is to confirm the involvement of these brain areas. It is also to identify other possible networks that could contribute to the development of AHP. METHODSWe performed a literature review for case studies of patients presenting with anosognosia for hemiplegia (n=17). The majority of cases were attributed to ischemic stroke (n=15) while the others resulted from hemorrhagic stroke. Lesion network mapping analysis was performed on the 17 lesions with a large cohort of healthy control resting-state scans (n=1000). RESULTSThe main regions to which the lesions were functionally connected included the right transverse temporal gyrus (n=17) and the anterior left insula (n=17). It is also important to note that the lesion networks were found to be negatively correlated with a few areas in the prefrontal cortex. CONCLUSIONFurther research should be done to investigate the involvement of specific areas of the prefrontal cortex in AHP. Some regions in the prefrontal cortex may be negatively correlated; however, past research suggests a positive correlation of other prefrontal regions. It is important that clinicians understand the lesion networks of AHP, as it will guide them to treat patients more effectively. Interventions such as transcranial brain stimulation could become more beneficial to patients, as clinicians will know specific areas of the brain to stimulate to mitigate symptoms of AHP.
The Effects of Initiating a 24-hour Fast with a Low Versus a High Carbohydrate Shake on pancreatic hormones in the Elderly: A Randomized Crossover Study
Authors: Spencer Hawes, Katya Hulse, McKay Knowlton, Landon Deru, Bruce Bailey. Mentors: Bruce Bailey. Insitution: Brigham Young University. The aim of this study is to understand how the macronutrient composition of the fast-initiating meal influences glucose regulating hormones in older, sedentary, and abdominally obese adults. Insulin, amylin, and glucagon were measured immediately before and after a 24-hour fast, as well as 48 hours after fast initiation. Understanding these outcomes will inform fasting protocols such as time restricted eating and alternate day fasting, which offer potential long-term health benefits. 16 participants (7 male, 9 female) each completed two 24-hour fasts consuming only water. In random order, one fast began with a high carb shake and the other with a low carb shake of equal calories, volume and fiber density. After each fast, participants lived and ate normally and then returned 24 hours later. Venous blood draws were taken at hours 0, 1, 24, and 48 to monitor levels of insulin, amylin, and glucagon. There was a significant condition by time interaction for insulin (F = 4.08, P < 0.01), amylin (F = 3.34, P = 0.02) and glucagon (F = 7.93, P < 0.01). Insulin (P = 0.02) and amylin (P = 0.01) were higher and glucagon lower (P = 0.05) after consuming the high carbohydrate shake compared to the low carbohydrate shake. There was no difference, however, between conditions for insulin, glucagon or amylin at 0, 24 and 48 hours.
The Effects of Dual-Task Activities on Language Fluency: Language Production While Driving
Authors: Alex Jarvis, Brooklyn Flowers, June Oaks, Sadie North. Mentors: Tyson Harmon. Insitution: Brigham Young University. Background: Dual tasks have been found to negatively affect language production for people with and without aphasia (Harmon et al., 2023). For people with aphasia (PWA) specifically, previous research suggests that limited working memory or attentional capacity contributes to their difficulty with language tasks (Harmon et al., 2019; Pompon et al., 2015; King & Karen 1996; Obermeyer et al., 2020). One common situation in which communication occurs within a dual task environment is talking while driving. Investigating how talking while driving impacts spoken language could help us better understand how to facilitate both safer driving behaviors and improved communication among friends and family while driving. Longer-term, this understanding can springboard further research addressing assessment and intervention practices in aphasia, which better reflect communication in daily life. Original findings related to speech acoustics revealed that talking while driving led to increased speech intensity and decreased speech time ratios (Glenn, 2017; Simmons, 2016). The potential impact of these driving tasks on spoken language, however, has not been investigated. For the present study, we will conduct a secondary analysis of language samples produced across the aforementioned conditions to understand how they impact spoken language production. Method: Data for the present study was collected for a larger project with initial aims of investigating the impact of driving on speech acoustics (e.g., frequency, intensity). This project also investigated bidirectional interference between speech acoustics and driving as well as the effects of different conversational modalities (e.g., talking on the phone, in person, or through Bluetooth). Forty healthy adults who reported no speech, language, or hearing impairment participated in the study. Participants completed seven tasks, which were presented in a random order: driving without speaking, speaking on a hand-held cell phone, speaking on a hands-free phone, talking to a person next to them speaking on a hand-held cell phone while driving, speaking on a hands-free phone while driving, and talking to a person next to them while driving. Within each of these conditions, participants discussed a topic they selected from a list while completing these tasks. To analyze spoken language, we will first transcribe samples orthographically. These transcriptions will then be coded for lexical-phonological, morphosyntactic, and macro-linguistic errors. Parametric statistical analysis will be used to compare across different age groups. Anticipated Results: We hypothesize that participants will demonstrate increased errors in conditions that involve talking while driving (i.e., dual task conditions) than in conditions that involve talking alone (i.e., single task conditions). Previous research suggests dual-tasking has a negative effect on language including lexical and phonological errors even in non-aphasic participants (Harmon et al., 2023). In this study, we would expect more lexical-phonological (e.g., fillers, revisions, repetitions) and macro-linguistic (e.g., aposiopesis) errors during dual task conditions. For future studies involving PWA’s, we would expect more impaired language in dual-task activities than those without aphasia.
Cell Death, Inflammation, and Extracellular Vpr in the R77Q Mutation of Vpr in HIV-1
Authors: Amanda Carlson. Mentors: Bradford Berges. Insitution: Brigham Young University. Human Immunodeficiency Virus (HIV) causes AIDS and is one of the most studied viruses in history. HIV is a retrovirus that has two copies of a single stranded RNA genome. While there is in-depth understanding of the virus and its pathogenesis, no completely effective treatment or vaccine exists. One potential target for therapeutic treatment of HIV is Viral Protein R (Vpr). Vpr is a multi-functional accessory protein encoded by the HIV genome. While HIV is a quickly mutating virus, the vpr gene remains relatively conserved. Mutations in this protein dramatically impact the rate of AIDS progression compared to the wild type (WT) version of Vpr. The Vpr polymorphism R77Q is associated with the Long Term Non Progressor (LTNP) phenotype. Regular AIDS onset is 5-7 years for WT virus and 10 or more years for R77Q. These differences in AIDS progression have been observed in vivo by following people with HIV over time. We have successfully shown that R77Q activates G2 cell cycle arrest more efficiently than WT followed by apoptosis, a death mechanism with less inflammation compared to necrosis. While the molecular mechanism of Vpr-induced apoptosis is known, it is not yet determined why point mutations in Vpr are changing levels of apoptosis. With further experimentation, we have shown that R77Q has decreased expression of pro-inflammatory cytokines compared to WT virus, which may explain why it is associated with the LTNP phenotype. The functions of Vpr come from binding and modifying cellular proteins and enzymes. The focus of our research is to determine what molecular interactions change between Vpr mutants to better understand the shifts in apoptotic levels. Vpr can be found intracellularly in the nucleus, cytoplasm, and mitochondria and extracellularly in secreted proteins and within virions. We will determine Vpr concentration in these various locations for both WT Vpr and the R77Q mutant, starting by measuring extracellular Vpr. To quantify virion-associated Vpr, we have designed a research plan. We will use WT-Vpr plasmids tagged by GFP to create GFP-tagged plasmids with either WT, R77Q or null mutations using site-directed mutagenesis. We will use Sanger sequencing for confirmation of the proper Vpr mutations tagged by GFP. We will then digest the plasmid DNA, leaving only the Vpr-GFP component and use PCR to amplify the sequences. We will transfect null virus plasmid (NL4-3) and Vpr-GFP plasmids into HEK cells to package the null virus and Vpr-GFP plasmids together to create active HIV particles. Using these virus particles, we will infect Hut-78 cells for a short time to allow the virion to enter the cells. We will then measure GFP fluorescence via flow cytometry, allowing us to quantify virion Vpr. This will be run alongside a mock infection as a control. We hypothesize that differences in virion Vpr concentrations exist among Vpr mutants. Through these experiments, we aim to discover more about the role Vpr plays in cell death by apoptosis and contribute to the existing literature exploring the importance of Vpr in HIV-1.
The Inseparable Connection Between Body and Mouth
Authors: Maddy Howard, Brooke Dension, Shanna Groesbeck. Mentors: Sandy Wilson. Insitution: Utah Valley University. AbstractThere are many systemic diseases that are linked to oral health. This literature review specifically examines different studies and academic journals that have studied the relationship between oral health, obesity, heart disease, and diabetes. Obesity is linked to the patient's oral health in many ways. When patients are consuming large quantities of food more often than normal, this results in a more acidic environment along with energy for bacteria to grow. One study found a correlation between obesity and risk factors such as “frequency of brushing teeth, smoking, tooth loss, gingivitis, and dental caries (Yilmax & Somay, 2021). This article discusses the strong correlation between oral health and heart disease. Several studies emphasize the importance of dental hygienists educating their patients about the link between their oral and cardiovascular health. The articles conclude that treating periodontal disease more effectively and aggressively could lead to a marked reduction in coronary heart disease rates and vice versa.Diabetes and periodontal disease is also examined at length in this literature review. Diabetes and periodontitis is described as a ‘two-way relationship’. Evidence shows that individuals with diabetes, type 1 or type 2, are 34% more likely to develop periodontal disease. On the other hand, individuals experiencing periodontal disease are 53% more likely to develop diabetes (Wu, et al., 2020). This literature review will explore the importance of oral health in keeping your entire body healthy.ReferencesArora, A., Rana, K., Manohar, N., Li, L., Bhole, S., & Chimoriya, R. (2022). Perceptions and practices of oral health care professionals in preventing and managing childhood obesity. Nutrients, 14(9), 1809. 10.3390/nu14091809.Batty, G. D., Jung, K. J., Mok, Y., Lee, S. J., Back, J. H., Lee, S., & Jee, S. H. (2018). Oral health and later coronary heart disease: Cohort study of one million people. European Journal of Preventive Cardiology, 25(6), 598-605. 10.1177/2047487318759112Centers for Disease Control and Prevention. (2022). Defining adult overweight & obesity. Centers for Disease Control and Prevention. Deraz, O., Rangé, H., Boutouyrie, P., Chatzopoulou, E., Asselin, A., Guibout, C., Van Sloten, T., Bougouin, W., Andrieu, M., Vedie, B., Thomas, F., Danchin, N., Jouven, X., Bouchard, P., & Empana, J. P. (2022). Oral condition and incident coronary heart disease: A clustering analysis. Journal of Dental Research, 101(5), 526-533. 10.1177/00220345211052507Sanchez, P., Everett, B., Salamonson, Y., Ajwani, S., Bhole, S., Bishop, J., Lintern, K., Nolan, S., Rajaratnam, R., Redfern, J., Sheehan, M., Skarligos, F., Spencer, L., Srinivas, R., & George, A. (2017). Perceptions of cardiac care providers towards oral health promotion in Australia. Collegian, 25(5), 471-478. https://doi.org/10.1016/j.colegn.2017.11.006Preshaw, P. M., Alba, A. L., Herrera, D., Jepsen, S., Konstantinidis, A., Makrilakis, K., & Taylor, R. (2012). Periodontitis and diabetes: A two-way relationship. Diabetologia, 55(1), 21-31. 10.1007/s00125-011-2342-yWu, C.-Z., Yuan, Y.-H., Liu, H.-H., Li, S.-S., Zhang, B.-W., Chen, W., An, Z.-J., Chen, S.-Y., Wu, Y.-Z., Han, B., Li, C.-J., & Li, L.-J. (2020). Epidemiologic relationship between periodontitis and type 2 diabetes mellitus. BMC oral health, 20, 204. 10.1186/s12903-020-01180-wYilmax, Busra. & Somay, Efsun. (2021). Is obesity a problem that threatens oral health in adults? Cukurova Medical Journal, 46(3), 1215-1221. DOI: 10.17826/cumj.950243
Meta-Analysis of Success Determining Factors of Healthcare Innovations
Authors: Barry Gyman. Mentors: Cody Reeves. Insitution: Brigham Young University. The purpose of this paper is to qualify and analyze the leading driving forces in determining the success of healthcare innovations in a variety of subspaces in the healthcare industry. Health is one of the largest markets in America and is almost universally relied upon. As the systems and technologies of healthcare are innovated and improved upon, the quality and efficiency of this care stands to increase, potentially benefiting both those who provide care, those who receive care, or both. The healthcare industry offers a plethora of niches needing innovating and the potential of high economic return for the producers, and yet only a small portion of innovations are adopted and successfully integrated with some areas having a failure rate approaching or exceeding 90% (Sun et al., 2022)(Jacobs et. al, 2015). What propels these few successful innovations towards adoption that so many other innovations fail to achieve? Through the analysis of dozens of papers researching success robustness in various healthcare fields, such as pharmacology and technological innovation, we will summarize the data in search of shared commonalities among successful innovations. Sun, D., Gao, W., Hu, H., & Zhou, S. (2022). Why 90% of clinical drug development fails and how to improve it?. Acta pharmaceutica Sinica. B, 12(7), 3049–3062. https://doi.org/10.1016/j.apsb.2022.02.002Jacobs, S.R., Weiner, B.J., Reeve, B.B. et al. Determining the predictors of innovation implementation in healthcare: a quantitative analysis of implementation effectiveness. BMC Health Serv Res 15, 6 (2015). https://doi.org/10.1186/s12913-014-0657-3
Perceived Risks for Maternal Mortality Among Utah Women
Authors: Marie Gibb. Mentors: Francine Jensen. Insitution: Utah Valley University. Maternal mortality, also known as maternal death, is defined as the death of a woman during pregnancy and up to one year postpartum. (MacDorman et al., 2021; Spelke & Werner, 2018). The United States is the only developed nation where the rates of maternal mortality are rising, and they have been rising for twenty years (Simpson, 2019; Spelke & Werner, 2018). This incidence represents a maternal health crisis in the United States. On average, 700 women in the United States die each year from pregnancy-related complications. This equates to 17.2 maternal deaths for every 100,000 live births (Simpson, 2019). Currently, the maternal mortality rate for Utah is higher than the national average at 21.5 maternal deaths per 100,000 live births (Utah Department of Health and Human Services, 2023). According to More than 60% of these deaths are preventable (MacDorman et al., 2021; Simpson, 2019).The leading causes of maternal death in the United States are hemorrhage, preeclampsia, eclampsia, hypertension, embolisms, and cardiomyopathy, which often lead to cardiovascular disorders (MacDorman et al., 2021; Simpson, 2019). The Utah Health and Human Services (2023) reported that increases in heart disease, hypertension, diabetes, mental health disorders, and other chronic conditions complicate pregnancies and are contributing to maternal mortality in Utah. The American Heart Association has cautioned that pregnancy complications like preeclampsia, gestational diabetes, and preterm delivery are linked to maternal heart disease later in life (Parikh et al., 2021). Research suggests that each episode has a cumulative effect (Marill, 2021), meaning, the more pregnancies women have, and the more complications women have during pregnancy, the more elevated their risks are in general for cardiovascular disorders as they age. A qualitative survey was sent out using snowball sampling to women over the age of 18 in Utah asking about their understanding of cardiovascular risk factors and current health conditions. Findings showed that women were unaware of their potential cardiovascular risks associated with pregnancy. Raising awareness regarding these cardiovascular risks may be the number one preventative strategy, as women are the ones who bear the personal and physical risks. If pregnant women are aware of their cardiovascular risk factors, they can be empowered to raise concerns when necessary. Future interventions may include educating all women of childbearing years about cardiovascular risks prior to pregnancy, as well as more frequent screening of women during and after delivery (Marill, 2021). ReferencesMacDorman, M. F., Thoma, M., Declcerq, E., & Howell, E. A. (2021). Racial and ethnic disparities in maternal mortality in the United States using enhanced vital records, 2016‒2017. American Journal of Public Health, 111(9), 1673–1681. https://doi.org/10.2105/ajph.2021.306375Marill, M. C. (2021). Getting to the heart of America's maternal mortality crisis. Health Affairs, 40(12), 1824-1829. https://doi.org/10.1377/hlthaff.2021.01702Parikh, N. I., Gonzalez, J. M., Anderson, C. A. M., Judd, S. E., Rexrode, K. M., Hlatky, M. A., Gunderson, E. P., Stuart, J. J., & Vaidya, D. (2021, May 4). Adverse pregnancy outcomes and cardiovascular disease risk: Unique opportunities for cardiovascular disease prevention in women: A scientific statement from the American Heart Association. Circulation, 143(18), e902-e916. https://www.ahajournals.org/doi/10.1161/CIR.0000000000000961Simpson, K. (2019). Maternal mortality in the United States. MCN, The American Journal of Maternal/Child Nursing, 44 (5), 249-249. doi: 10.1097/NMC.0000000000000560.Spelke, B., & Werner, E. (2018). The fourth trimester of pregnancy: Committing to maternal health and well-being postpartum. Rhode Island Medical Journal (2013), 101(8), 30–33.Utah Department of Health and Human Services. (2023, March 16). Complete health indicator report of maternal mortality. Retrieved Sat, 09 September 2023 from the Utah Department of Health and Human Services, Indicator-Based Information System for Public Health website: http://ibis.health.utah.gov. https://ibis.health.utah.gov/ibisph-view/indicator/complete_profile/MatMort.html
Identifying the Interactomes of Disease-Causing CryAB Variants
Authors: Joshua Evans, Allison Voyles, McKenzie Bellon, Julianne Grose. Mentors: Julianne Grose. Insitution: Brigham Young University. Alpha-crystallin B (CryAB) is a small heat shock protein that acts as a molecular chaperone and plays an essential role in cytoskeletal organization and myofibril function. Human mutations in CryAB have been associated with various diseases, such as cardiomyopathy and cataracts. However, the precise molecular pathways and protein substrates of CryAB are not yet fully understood and require further investigation. This project aims to increase understanding of CryAB by determining proteins that bind wild-type versus disease-causing variants using yeast two-hybrid screens. It also involves testing for binding specificity of variant-binding partners. A series of these Y2H screens gives valuable information regarding the binding patterns of CryAB, showing distinct binding partners for different alleles of CryAB. Overall, the project provides greater insight into the molecular functions of CryAB as well as a better understanding of the dysfunctional pathways of its disease-causing variants—a factor which may, in the future, have potential applications to the treatment of related diseases in a clinical setting
Transcriptome-Based Risk Score Predicts Time to First Treatment for Multiple Myeloma Patients
Authors: Ishmael Elliott Molina-Zepeda, Brandt Jones, Myke Madsen, Douglas Sborov, Brian Avery, Nicola J. Camp . Mentors: Nicola J. Camp. Insitution: University of Utah. Multiple Myeloma (MM) is a malignancy of plasma cells and one of the more common hematological malignancies (6.3/100,000 new cases/year). Although treatments have improved, most patients fail their first line of treatment and ultimately do not survive beyond 5 years. Identifying patients at high risk of failing treatment early is a critical need. SPECTRA is a statistical technique developed by the Camp Lab to characterize global gene expression (the transcriptome) by representing it as multiple quantitative tumor variables. Spectra variables allow gene expression to be incorporated into predictive modeling to identify high-risk groups.Transcriptome data for myeloma cells was available from 768 patients in the international CoMMpass study where 39 spectra variables were derived. Each patient has a value for each of the 39 variables (their spectra “barcode”); patients can be compared for each bar in the barcode. Predictive modeling using spectra variables was successful in identifying risk groups for time to treatment failure, such that a patient’s tumor transcriptome can be used to predict whether they are at high risk of having their treatment fail earlier.To replicate the CoMMpass data findings, we collect and process local biological samples from MM patients at the Huntsman Cancer Institute (HCI). We collect bone marrow samples, which are then cell-sorted to identify tumor (CD138+) cells. RNA is extracted from these cells and sequenced to generate transcriptome data. Then the spectra barcode is calculated.Utilizing the SPECTRA technique provides a more complete understanding of MM by better characterizing the tumor. Each spectra is a tumor characteristic. Our future research includes an investigation of whether inherited variations (in normal DNA from saliva or whole blood) are associated with the transcriptome risk score. We are also pursuing the SPECTRA technique in several other cancers.
Hyperglycemic Conditions Impair Essential Nkx6.1 Expression in Beta Cells
Authors: Jared Wieland, Jacob Herring. Mentors: Jeffery Tessem. Insitution: Brigham Young University. A central attribute of Type 2 Diabetes (T2D) is beta cell damage. This damage commonly affects beta cell’s ability to secrete insulin and regulate blood glucose levels. Nkx6.1 is a beta cell transcription factor essential for proliferation, differentiation, and glucose-stimulated insulin secretion. Hyperglycemia is detrimental to beta cell function and function. We hypothesize that hyperglycemia may negatively affect the expression and activity of beta cell transcription factors, including Nkx6.1. To provide an understanding of the effects of hyperglycemic conditions on Nkx6.1 expression, INS-1 832/13 beta cells were cultured in hyperglycemic conditions, then primary rat islets were treated for the same durations of time. Here, we present transcriptional, translational, cellular localization, and degradation of states of Nkx6.1 over 48 hours of hyperglycemic culture conditions both in vitro and ex vivo models. Comprehension of the mechanisms involved in hyperglycemic downregulation of Nkx6.1 is imperative to the development of treatments for diabetes.
The Caregiving Experience for Children Diagnosed with Cancer: A Secondary Analysis
Authors: Sofia Denise Flowers. Mentors: Lauri Linder. Insitution: University of Utah. Background and Purpose: In the year 2023, roughly 9,000 children will be diagnosed with cancer each year in the United States. Dealing with a potentially fatal diagnosis is already difficult for many grown adults, let alone a young child. The aim of this project is to describe caregiving experiences of parents and children with cancer as related through feedback comments within written and oral feedback to proposed items to measure self-efficacy for managing their child’s symptoms and behaviors used to manage their child’s symptoms.Methods: This project involved a secondary analysis of qualitative data from 21 parents (19 mothers; mean age 38 years) of school-age children with cancer who participated in a study to establish the content validity of instruments to measure aspects of symptom management. Data consisted of interview transcripts and free responses to the content review surveys. The data were then uploaded to Dedoose. My mentor and I worked independently to identify statements pertaining to parents’ experiences in managing their child’s symptoms and responding to the child’s cancer diagnosis. We then met together to reconcile content and then organize parents’ statements into categories and subcategories. Results: 101 excerpts were extracted from the transcripts and included for the secondary analysis. Excerpts were grouped into four main categories: informational resources, social support, emotional support, and medication management Within these four main categories, subthemes of professional staff support, managing child attitude and mood changes, and balancing between being a parent and their child’s medical advocate were present. Conclusion: The insights gained from this project can guide the information healthcare providers need to provide better care to the child and additional support to parents. This can allow professional staff to get a stronger understanding of not just the family’s medical needs but their informational, social, and emotional needs as well.
GPU-Accelerated Monte Carlo Raman Spectroscopy Simulation: Unlocking Computational Speed for Cancer Detection
Authors: Thomas Caldwell. Mentors: Dustin Shipp. Insitution: Utah Valley University. In this research project, we have transformed an existing Raman spectroscopy simulation, enhancing its performance and capabilities through the integration of parallel computing with GPU acceleration. This significant improvement in computation time allows us to break through previous computational limitations, enabling more sophisticated and complex applications of the simulation. The principal applications we will be assessing are the viability and potential of spatially offset Raman spectroscopy (SORS) for deeper tissue analysis, exploring the possibilities of topographical imaging using Raman techniques, and the advanced application of chemical imaging of microscopic tumors. This expanded scope demonstrates the simulation's potential in early cancer detection.
Health Insurance Literacy Among UVU Students
Authors: Emmalie Parker. Mentors: Heather Thiesset. Insitution: Utah Valley University. Changes in health insurance due to the Affordable Care act created a bridge for college students to remain on their parent or guardian’s health insurance for a longer period of time. However, little is done to close the gap of education deficiency in the area of health insurance literacy during this time. While most students in a universal health system have relatively few options to choose from, students in the US are faced with many different plans through employment or the open marketplace. Therefore, in order to ensure adequate access to care, it is imperative that students understand the fundamentals of this system in the US. This quantitative cross-sectional survey sampled 500 currently registered UVU students to assess their knowledge, attitudes, beliefs and healthcare utilization. This data was stratified by age and sex. Descriptive statistics and chi2 analyses were performed. This study showed that disparities in healthcare literacy affect healthcare utilization and can be a catalyst for long-term healthcare access issues for students and their families.
Understanding Refractory Status Epilepticus with Novel HD-MEA Technology
Authors: Isaac Stubbs, Skyler Russell, Melissa Blotter, Maxwell Holmes. Mentors: Ryley Parrish. Insitution: Brigham Young University. Status Epilepticus (SE) is a severe medical condition marked by continuous seizures lasting over 5 minutes. When SE becomes resistant to anticonvulsant drugs, the condition is known as Refractory Status Epilepticus (RSE), which lacks effective treatments and has a mortality rate of 38%. RSE lacks effective treatments partially due to our limited understanding of the mechanisms that lead to patient drug resistance to commonly used anticonvulsants. This study aims to address this knowledge gap in two pivotal ways.First, we have employed a high-density multi-electrode array (HD-MEA) with acute mouse brain slices to better understand RSE propagation patterns and various seizure states with unparalleled spatial precision. The HD-MEA allows us to record from the entire brain slice with 4096 electrodes sampling electrophysiological activity at every 60 micrometers for many hours at a time. Our data demonstrates that different seizure states, such as phasic seizure-like events, short duration epileptic discharges, or RSE itself, occur within both the same brain region and in different brain regions simultaneously. With our novel data visualization software, we can visualize the unique propagation of this phenomenon. These findings indicate that RSE might be a progressive event, challenging conventional understanding of RSE. Second, we are currently exploring a potential pharmacoresistance mechanism that may contribute to the patient entering RSE, which suggests that changes in the chloride reversal potential may lead to a phenomenon known as depolarizing GABA. Depolarizing GABA may negate the effectiveness of the currently used antiepileptic drugs that rely on standard physiological chloride conductance to effectively limit seizure activity. We are studying this drug resistant mechanism with the HD-MEA by introducing anticonvulsant drugs to acute mouse brain slices during the evolution of RSE to locate a critical point at which the slice becomes resistant to these compounds.We hope this study will illuminate the complexities of RSE by revealing its progressive nature and drug resistant properties.
Actitudes, Barreras, y Cambios: Adapting Prehabilitation for Latino Patient Populations
Authors: Quinn Gerber, Lucas Carpenter, Jacob Clemons, Cindy Kin. Mentors: Cindy Kin. Insitution: Brigham Young University. Introduction: It is vital that patients are adequately prepared for surgical intervention. To meet this need, many medical centers have adopted prehabilitation protocols. The aim of this study was to establish an in-depth comprehension of the attitudes towards surgery and barriersand preferences to prehabilitation for patients identifying as Latino, in order to develop a preliminary framework for adapting prehab programs to best meet the needs of this specific patient population.Methods: We conducted qualitative semi-structured in-person one-on-one interviews with Latino patients who had recently undergone major abdominal surgery. The interviews, conducted at an academic medical center, were audio-recorded, transcribed verbatim, translated into English (as needed), iteratively coded, and discussed by four researchers to reach consensus. We used thematic analysis to identify shared attitudes held by patients and common barriers to the adoption of prehabilitation programs. Analysis of these attitudes and barriers, along with stated patient preferences, led to the development of several ideas that physicians can implement to increase prehab adoption among Latino patients.Results: We interviewed 16 patients, at which point we reached thematic saturation. The patients were on average 52 years old (range 20 to 79) and 50% were women. Our pooled kappa score was .92, indicating a very high degree of concordance among the coding researchers. We identified five common attitudes held by Latino patients regarding surgery: anxiety associated with hospitalizations and surgical procedures, deep trust in physicians, reliance on positivity, tight-knit families/communities, and prominent religious and cultural beliefs. A lack of understanding, physical limitations, a reactive/delayed approach to healthcare, dietary barriers, and mental barriers emerged as obstacles to prehabilitation adoption. These attitudes and barriers, along with direct patient feedback, led us to identify several programmatic priorities that may increase adherence to prehab. These components consist of face-to-face interaction, increased communication, patient and physician collaboration in program development, and family/support group engagement in surgical preparation.Conclusion: Our study provides physicians preliminary insight into customizing prehabilitation programs to best meet the needs and customs of the Latino community, including anxiety associated with hospitalizations, strong social support, and a dominant role of religious faith in coping with illness. We identified several critical components that may make prehab more culturally competent and thus more likely to be adopted by patients. These include in-person coaching, increased information about the upcoming operation and recovery, and engagement of family members. We recommend that healthcare teams committed to prehabilitation consider these needs to make their programs more attractive and accessible to their Latino patients.
Thioredoxin-1 is essential for osteogenesis in vitro and in utero
Authors: Caroline Cowley, Megan Jewell, Brenda Mendoza, Aubrey Cluff, Ryan Summerhays, Jason Hansen. Mentors: Jason Hansen. Insitution: Brigham Young University. Approximately 8 million newborns manifest a birth defect every year worldwide. One of the most common birth defects involve disruptions in musculoskeletal development. Oxidative stress has been found to propagate teratogenesis. Thioredoxin-1 (Trx1), an oxidoreductase, is an important antioxidant regulator required for proper embryonic development. Trx1 knockouts have been found to be embryolethal prior to implantation. A preliminary study to assess osteogenesis was conducted using mouse embryonic fibroblasts (MEFs) originating from transgenic conditional Trx1 knockout embryos. Upon confluence, MEFs were stimulated to undergo osteogenesis via commercially available media. A subset of cells were treated with doxycycline (DOX) prior to and throughout the culture period. MEFs were maintained over a 21 day period in a reduced oxygen environment. MEFs were then fixed in formalin and stained with Alizarin red to determine the degree of osteogenesis. MEFs treated with DOX were unable to undergo proper osteogenesis. While this would suggest that osteogenesis is regulated through proper functions of Trx1, it is unknown how Trx1 regulates osteogenesis in utero. Because Trx1 deletion is lethal prior to implantation it has been historically difficult to study the role of Trx1 during organogenesis. With the development of the DOX-inducible Trx1 conditional knockout mouse, we can now target specific developmental periods and evaluate post-implantation processes like osteogenesis. Using proper transgenic mice and breeding schemes, DOX-inducible Trx1 conditional knockout embryos were treated in utero with DOX through the dam’s drinking water, starting on gestational day (GD) 8.5. The embryos were collected on GD 16.5, fixed in 95% ethanol, and then skinned. To visualize bone and cartilage, the embryos were placed in ethanol and subsequently stained with Alizarin red and Alcian blue. The staining showed that embryos lacking Trx1 were significantly stunted in their skeletal maturation. With this data, we are the first to show that during organogenesis, the musculoskeletal system is affected by deletions of Trx1 at specific periods of development. Under oxidizing conditions which exceed the capacity of the oxidoreductase pathway of Trx1, Trx1 exists primarily in its oxidized form and can no longer reduce proteins that have been turned off by oxidation. Our Trx1 deletions model a highly oxidized state in which Trx1 is dysfunctional. Because regulatory redox control of protein activity is required for proper embryonic development, exposure to oxidizing environmental conditions specifically affecting Trx1 redox state may target the disruption of the musculoskeletal system.
Generative AI and Image Manipulation
Authors: Tayler Fearn, Caroline Torgensen, Vern Hart. Mentors: Vern Hart. Insitution: Utah Valley University. Coherent diffraction imaging (CDI) is a newly developed modality used to measure phase shifts introduced by fine-scale structures in cells. These phase shifts can be used to distinguish healthy and malignant cells, providing a diagnostic marker for early cancer detection. However, this process, in which diffracted light interferes with incident light, requires collecting scattered photons at large angles, representing high spatial frequencies and short wavelengths. The highest frequencies, needed to reconstruct small details in cells for improved image quality, occur at distances of several centimeters from the central bright fringe. As such, these signals are faint and difficult to collect experimentally. We propose the use of deep learning to synthetically extrapolate diffraction patterns at large distances, where measurements are difficult. In prototyping this method, we will present results produced by a generative adversarial network (GAN), trained using existing data of watercolor paintings to preform style transfer and image extrapolation. This will be an essential step in working towards the larger goal of developing GAN’s that can accurately extrapolate diffraction images.
Using Transfection as a Annotation-free Ground Truth for Training Noninvasive Metastatic Cancer Mapping Methods
Authors: Drew Allred, Vern Hart. Mentors: Vern Hart. Insitution: Utah Valley University. Surgery remains one of the most common and effective treatments for a variety of cancers, especially those that form solid, localized tumors such as breast and colorectal cancers. During these treatments, the palpable lesion is surgically resected with the assumption that cancerous cells have metastasized to nearby tissues. As such, surgeons will excise a tissue margin surrounding the tumor in hopes of removing any additional cancer, thus preventing further spread of the disease. However, this process is time-consuming and requires specialized expertise from a trained pathologist to verify that all cancer has been removed. Furthermore, if the pathology report indicates that not all cancerous cells have been extracted, additional follow-up visits and surgeries are typically required. In recent years a number of non-invasive technologies have been developed which seek to map cancerous cells in whole tissues. Training and validating these methods still requires a reliable ground truth, typically provided by an annotated pathology report. We propose a simpler model in which two cell species were co-cultured to provide a heterogeneous training sample. One of these species (PANC-1) was transfected with a vector coding for a fluorescent marker to represent healthy tissue, while the other species (COS-7) remained untreated, representing cancerous cells. An experiment was then conducted using a coherent diffraction imaging (CDI) system, in which laser light incident on the cells was used to quantify phase shifts produced by each cell type. Fluorescent microscopy was then used to create a map of transfected and non-transfected cells for comparison. Results will be presented demonstrating a correlation between the phase shifts produced by the two cell types and the corresponding fluorescent images, potentially facilitating optical cell identification without the need for pathology.
Three-Dimensional Construction of Coronary Vasculature Geometries
Authors: Aksel Anderson, Lindsay Rupp, Anna Busatto, Rob MacLeod. Mentors: Rob MacLeod. Insitution: University of Utah. Cardiovascular disease is the leading cause of death globally, and one of the most impactful subsets is coronary artery disease (CAD). CAD occurs when an obstruction(s) in the arteries fails to supply the heart with sufficient blood flow, ultimately resulting in tissue death. Understanding the geometric structure of the heart’s vasculature can provide insight into the development of CAD. However, previous research has only captured vasculature geometries for the main coronary branches, neglecting the downstream vasculature. Therefore, capturing the downstream vasculature would offer researchers a more comprehensive model to study CAD. Our study developed a method to efficiently obtain subject-specific, comprehensive vasculature geometries. First, we obtained five computed tomography (CT) scans of explanted porcine hearts with the coronaries highlighted via a contrast agent. From these CT images, we developed a novel method to efficiently capture the vasculature geometry of each subject. Once we obtained the final geometries, we computed two metrics to determine the extent of the captured vasculature: (1) the number of vessel segments and (2) the smallest vessel radius. We obtained an average vessel segment count of approximately 169 +/- 63 vessels and a smallest vessel radius of approximately 0.44 +/- 0.15 mm. We were able to successfully capture vessels over 85% smaller than the largest porcine coronary artery with a radius of approximately 3.5 mm. Our methodology will help researchers and clinicians obtain comprehensive vascular geometries to enhance the study and treatment of CAD.
Perceived Fatigue and Physical Activity Enjoyment Following Indoor and Outdoor Moderately Heavy Superset Resistance Training
Authors: Korina Ziegler, Aaron McKenzie, Wesley Ziegler, Spencer Maxwell, Bryson Carrier, Charli Aguilar, Alexandra Routsis, Talon Thornton, Jae Bovell, Setareh Star Zarei, Devin Green, Amanda Hawkes, Jeffrey C Cowley, Merrill Funk, James Navalta, Marcus M Lawrence. Mentors: Marcus Lawrence. Insitution: Southern Utah University. ACSM has again determined that resistance training (RT) and outdoor activities are two of the top ten worldwide fitness trends for 2023. We previously found that RT outdoors had a significantly lower perception of effort (RPE) compared to indoor RT, despite no physiological differences in heart rate (HR) and energy expenditure (EE). However, no study has examined other feelings during RT in indoor or outdoor settings. PURPOSE: To determine how indoor or outdoor environments effect perceptions of fatigue and physical activity enjoyment following RT in recreationally resistance trained adults. METHODS: Twenty-three adult participants (n=10 female, n=13 male) completed this study. The Visual Analog Scale Fatigue (VAS-F) measured perceived fatigue and the Physical Activity Enjoyment Scale – Short Version (PACES-S) measured PA enjoyment, and both were measured at baseline and then immediately following an acute session of indoor or outdoor RT. HR was obtained from a chest strap (Polar H10) and EE from a Portable Metabolic Cart (COSMED K5). Randomly in indoor and outdoor settings, participants completed 4 supersets of the reverse lunge and shoulder press exercises using dumbbells at a light (2 sets) and moderately heavy (2 sets) intensity with 1 superset of 6 repetitions per exercise and 1 min rest between supersets. A paired T-test (for HR & EE comparisons) or one-way repeated measures ANOVA with Sidak post-hoc test (for VAS-F & PACES-S comparisons) were used to determine differences (p<0.05). RESULTS: No significant differences were observed between indoor and outdoor RT for the physiological variables of average HR (129.4±17.2 and 127.75±23.3 bpm, respectively, p=0.66) and EE (30.6±11.5 and 28.3±9.9 kcals, respectively, p=0.06). Perceived fatigue significantly (p<0.0001) increased from baseline (1.13±0.94 arbitrary units, AU’s) following indoor (4.54±1.91 AU’s) and outdoor (3.99±1.54 AU’s) RT, but no environmental differences (p=0.36) were observed. PA enjoyment was not significantly (p range: 0.27-0.93) different between baseline (18.73±1.83 AU’s) and following indoor (18.18±1.99 AU’s) or outdoor (18.36±1.99 AU’s) RT. CONCLUSION: In recreationally resistance trained adults, moderately heavy superset RT in indoor or outdoor settings does not alter perceived fatigue or physical activity enjoyment.
The Effects of Pterostilbene on NADH Oxidase in Endothelial Cells Exposed To Hyperglycemic Conditions
Authors: Gabe Matthews, Easton Eddie. Mentors: Jennifer Meyer. Insitution: Utah Tech University. Diabetes is a prevalent chronic health condition associated with significant complications, including diabetic kidney disease. The accumulation of elevated glucose levels in cells triggers an upregulation of NADPH Oxidase (NOX) expression, contributing to diabetic kidney disease. NOX activation results in an increased production of reactive oxygen species (ROS), inducing oxidative stress and cellular proliferation. Pterostilbene, recognized for its natural antioxidant properties, has demonstrated efficacy in reducing oxidative stress across various cell types. This study focuses on elucidating the NOX pathways in endothelial cells exposed to hyperglycemic conditions and assessing the extent of oxidative stress reduction with the introduction of pterostilbene. To quantify cellular oxidative stress, we will employ an Amplex Red assay to measure superoxide and hydrogen peroxide levels within the cells. Quantitative polymerase chain reaction (qPCR) will also be utilized to assess NOX protein gene expression at the mRNA level. To complement these methods, a western blot analysis is conducted to quantify NOX protein concentrations under distinct environmental conditions. Our research aims to shed light on the potential of pterostilbene as a therapeutic agent in mitigating oxidative stress associated with hyperglycemic conditions in endothelial cells.
An Investigation into the Effect of Access to Dental Radiology Skill Practice in Virtual Reality on Undergraduate Dental Hygiene Student Competency and Learning Compared with Access to Traditional Study and Practice Methods
Authors: Michaela Lovejoy, Rylee Udom, Lindsey Fry, Hailey Roubidoux, Makayla Dunbar, Kali Hunt, Mandy Gibbs, Lisa Welch. Mentors: Lisa Welch. Insitution: Utah Tech University. Traditional dental radiography education necessitates the exposure of both clinician and patients to radiation to build clinician skill. Virtual reality (VR) may enable practitioners to learn valuable hands on skills without the use of expensive equipment and without patient or operator exposure to radiation. The purpose of the research is to determine if access to practice in virtual reality (VR) using a specifically designed application, builds skill competency in dental radiology compared with traditional practice methods. A convenience sample of 24 first year dental hygiene students at Utah Tech University were recruited and randomly assigned to the test and control groups. Test group participants were given access to a VR headset with a dental radiology skill practice application installed. Control group participants were given access to traditional dental radiography skill practice methods. To encourage participation, an incentive of a $10 Amazon gift card upon completion of the study was offered. Data will be collected via skill competency evaluation at two-months, mid-term grade scores and final grade scores from the participants’ dental radiology laboratory course. To increase internal validity and reliability, investigators responsible for skill competency evaluation will be blinded and undergo both intra and inter-rater reliability testing to 95% agreement. Upon completion of the Fall semester 2023, data will be analyzed using ANOVA repeated measures between factors accounting for the two independent variables of traditional practice and practice in VR and the dependent variables of competency assessment scores, mid-term and final clinical course grades. Alpha will be set at 0.05. Should it be determined that practice in VR contributes to student learning, VR may enable students to practice additional health science skills in a safe, low stakes environment; thus, increasing student experiential learning and contributing to increased student and patient safety.
Concurrent Validity of Heart Rate Measurements by Bicep Worn Polar Verity Sense and OH1 Devices During Moderately Heavy Resistance Training
Authors: Marcus M Lawrence, Merrill Funk, Jeffrey C Cowley, Amanda Hawkes, Aaron McKenzie, Alexandra Routsis, Wesley Ziegler, Talon Thornton, Spencer Maxwell, Korina Ziegler, James Navalta. Mentors: Marcus Lawrence. Insitution: Southern Utah University. American College of Sports Medicine has again found that wearable technology and resistance training (RT) are two of the top 5 fitness trends in 2023. Our lab recently found that the bicep-worn Polar Verity device was valid and reliable for measuring average and maximal heart rate (HR) during light intensity circuit RT. However, no study has examined other bicep worn devices during RT while also examining heavier intensities. PURPOSE: To determine the concurrent validity of identical Polar OH1 (x2) and Verity Sense (x2) bicep-worn devices in recording average and maximal HR following moderately heavy RT. METHODS: Twenty-one adult participants completed this study (n=10 female, n=11 male; age: 26.1±9.2 yrs; height: 171.3±9.4 cm; mass: 71.4±18.2 kg; RT experience: 5.7±4.9 yrs). The four bicep devices (Polar OH1 x2 and Polar Verity Sense x2) were worn along with the Polar H10 chest strap, criterion for HR. Participants completed 8 supersets of the reverse lunge and shoulder press exercises using dumbbells at a light (4 sets) and moderately heavy (4 sets) intensity with 1 superset of 6 repetitions per exercise (12 repetitions per superset) and 1 min rest between supersets. Data was analyzed for validity (Mean Absolute Percent Error [MAPE] and Lin’s Concordance Coefficient [CCC]), with predetermined thresholds of MAPE<10% and CCC>0.70. Paired t-tests were used to determine differences (p<0.05). RESULTS: For average or maximal HR, neither the Polar Verity Sense 1 (127.2±17.8 or 151.5±16.7bpm) or 2 (125.7±18.8 or 147.9±18.9bpm) or the Polar OH1 1 (128.7±18.5 or 154.5±18.1bpm) or 2 (129.5±18.2 or 156.4±17.4bpm) were significantly (p range: 0.14-0.97) different than the criterion (128.6±19.2 or 149.3±18.0bpm). However, the Polar Verity 1 and 2 were not considered valid for average HR (MAPE range:16.17-17.57%; CCC range: 0.07-0.13) or maximal HR (MAPE range: 11.60-13.33%; CCC range: 0.02-0.29). The Polar OH1 1 and 2 devices were not considered valid, either, for average HR (MAPE range: 17.22-17.25%; CCC range: 0.08-0.09) or maximal HR (MAPE range: 13.24-13.92%; CCC range: .024-0.27). CONCLUSION: Despite our lab previously finding the Polar Verity as valid for HR measurements during light intensity RT, the current bicep-worn devices should not be utilized during heavier intensity RT for accurate HR measurements. Individuals resistance training and utilizing bicep-worn devices for heart rate should use them cautiously.