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2013 Abstracts

From the Perspective of Barbarians: Kingston’s “The Woman Warrior”

January 01, 2013 12:00 AM
Katie Patterson Hulett, Dixie State University English, Literary Studies emphasis In the last pages of her memoir, The Woman Warrior: Memoirs of a Girlhood Among Ghosts, Maxine Hong Kingston tells the story of the Chinese poetess Ts’ ai Yen, a woman captured by

The Nature of Fate: Determinism in Thomas Hardy’s The Return of the Native and George Eliot’s The Mill on the Floss

January 01, 2013 12:00 AM
Melissa Lewis, Dixie State University English Both George Eliot and Thomas Hardy have been called determinists partly as a result of their novels The Return of the Native and The Mill on the Floss. The role of fate or destiny largely guides the plot of these works, regardless of the decisions and merit of the characters. A comparison of the style of determinism between the two authors reveals that George Eliot emphasizes a moral force while Thomas Hardy focuses on a force associated with nature. Eliot’s determinism suggests that the world is determined but that humans still remained morally responsible for their actions, as Maggie is responsible for not feeding Tom’s rabbits or for her lack of decision as she drifts down the river with Stephen Guest in The Mill on the Floss. Hardy tends to be more of a naturalist. The naturalist is a product of post-Darwinian theory that humanity is controlled entirely by nature. For example, the fate of Eustacia Vye in The Return of the Native seems to be controlled by the hand of Egdon Heath. Both novels depict extraordinary characters in a world bent to squash them. These novels reveal that the individual exists as a solitary entity, and the relationship that used to exist between God and individual is now between the individual and society. Both Eliot and Hardy create novels where the world seems determined and cruel and characters that don’t adhere or fit in this mold are eliminated or reduced.

Sentimentality Preserves Our Past

January 01, 2013 12:00 AM
Hanna Higginson, University of Utah Anthropology The study, “Sentimentality Preserves Our Past” focuses on two branches of nostalgia: sentimentality and historical utility and their relationship to cultural relics. Our approach assumes we can recognize similarities and differences between cultural communities by describing the extent to which individuals are sentimental or utilitarian with regard to their possessions. We are currently collecting data from the northern Utah community and Utah Tongan community. We set up a preliminary exercise asking participants to free list the items they have a difficult time throwing away for sentimental reasons. So far we have collected 40 questionnaires and 13 interviews that focus on the five most referenced items. Our target is to conduct about 45 questionnaires and 45 interviews for each community. For the Utahan population we have enough data to identify an S:U RANK – the ratio between a participant’s measure of sentimentality to the measure of utility. For the 25 questions where a respondent’s answer could be classified as appealing to sentimentality (s) or historic utility (h), we summed the totals then divided it by the sum of the answers appealing to utility (u). All totals above 1 indicate that the respondent prefers protecting items for nostalgic purposes; all answers below 1 indicate the respondent prefers items of utility. The S:U RANK gives a general view into a particular population. From this we can discuss the effect of variables such as age, marital status, children, age of children, and years in Utah on an individual’s preference. Currently, the pattern from the S:U RANK suggests that marital status and children are having the greatest effect on the ratio, but this will become clearer as the interviews progress. The research began as an effort to understand the presence of nostalgia as applied to five common relics among a particular diaspora, in light of the incoming data, this question is developing into an attempt to understand nostalgia in a cultural and universal sense as well.

The Mouth as a Vehicle for Homoerotic Expression: Articulating Homosexuals in Genet’s Querelle

January 01, 2013 12:00 AM
Echo Smith, University of Utah English and Classics In his novel Querelle Jean Genet depicts homosexual relationships among men, primarily in the navy, as narrated by the character of Lieutenant Seblon. The main object of Seblon’s affections and infatuations is Querelle, after whom the work is titled, the reigning protagonist. As the novel quite overtly depicts the occurrence of sexual acts between men, it is easily read as homosexual literature. However, what I argue is that homosexuals, within the novel, are identified more by verbal expressions than acts of the body. Throughout the text, Genet frequently draws attention to the mouth and the ways in which it expresses, imbibes, or expels. Using Georges Bataille’s theories of the mouth, which also focus on a type of oral release, I opine that one can see the relationship between this orifice and the way in which we, as humans, take in or eject things from our bodies. This notion coupled with Genet’s employment of the mouth as a means of homoerotic expression provides for a queering of the mouth to occur. Therefore, I conclude that the mouth, in the text of Querelle, becomes the orifice through which homosexuality is released from the body, primarily through verbal expression, and becomes the more accurate indicator of the homosexual within the text.

A New Sort of Man: The Ideal Man in Kate Chopin’s Collected Works

January 01, 2013 12:00 AM
April Jackson, Dixie State University English With the publication of Kate Chopin’s complete works in 1969, proponents fighting for a new paradigm regarding women’s choices in regard to sexuality, marriage, and motherhood found much to consider in her work. Often, critics will analyze Chopin’s works with a limited feminist lens, focusing on themes of marriage, sexuality and sexual independence, and the creation of self-identity through marriage and sexual awakenings. However, Chopin’s works do not focus on women and the world they face to the exclusion of men; in writing about women and their lives, she also draws attention to the effects the attitudes of men have on women. Focusing on Chopin’s male characters, who often serve as satellite figures, this paper will analyze the way men in her texts can create an atmosphere in which women can, without fear of societal rejection, shape their own lives. In her larger body of works, two men exemplify this ideal man: Gouvernail, who appears in “Athenais” and “A Respectable Woman”; and Offdean, who appears in “A No-Account Creole.” These two men represent a model of masculinity that is most conducive for women to fully assert and create their sexual and social independence and self-identity. With the study and analysis of these satellite male characters, rather than limiting the analysis to just the women’s experiences, deeper and newer readings of Chopin’s work will surface and allow for additional themes to come forward in the broader area of Chopin studies.

Perceptions of Red Hair Through Time

January 01, 2013 12:00 AM
Hanna Winzenried, Brigham Young University History Red hair is one of the most rare hair colors. In fact, only two percent of the world’s population has naturally red hair. My research attempts to show how Western perception of red hair has undergone transformations over time. I seek to show how red hair has been associated with a variety of perceptions from the Middle Ages onward. This is not a comprehensive study, but one that takes a variety of primary sources to show how changing societal perceptions of red hair imbued females (and males) with a variety of traits contributing to a kind of physiognomy of hair whereby a person’s character could be read through hair color.

Imagining Undertext

January 01, 2013 12:00 AM
Catherine Howell-Dinger, University of Utah English While feminist projects have often acknowledged that discourse creates specific material conditions and lived realities, it has rarely been asked how these conditions might influence discourse itself. This paper investigates the politics of textual production and argues that some texts have thought of the material conditions of the narratives which they disclose as inseparable from, and present in, the text itself; however, other texts show a high level of anxiety about their relationship to materiality, and ultimately attempt to suppress this relationship as a means of ensuring a particular privileged position. For example, Toni Morrison’s Beloved has been read by some critics as an example of Kristeva’s semiotic. Pursing this reading further, I argue that a more active conception of the body is present in Morrison’s work than was previously observed by these critics. In Morrison’s work, the body is not simply something that is written; rather, it is something that actively shapes and inflects the text vis-a-vis its own disruption of the text. On the other hand, although the body seems to figure prominently in the work of some authors, such as James Tiptree’s “The Girl Who was Plugged In,” its relationship to textual production is eclipsed in order to maintain political power and hegemonic masculinity. The authorial voice in Tiptree’s work ultimately attempts to cover over its own connection to the feminine body of its composer, Alice Sheldon, in order to give its own feminist message authority.

Migrant Head Start in Brigham City, Utah

January 01, 2013 12:00 AM
Carlos Junior Guadarrama, Utah State University English My poster explores the history of the Migrant Head Start program at the former Indian Intermountain School location in Brigham City, Utah. No one to my knowledge has gathered a history of this program, which operated from the mid-1980s until the early 2000s. I intend to explore this Migrant Head Start’s foundations as an informal school for the children of Latino migrants, as well as how it grew and developed over the almost two decades that it existed, before it became the Centro de la Familia de Utah. I plan to interview a former principal, several teachers, as well as former students. I argue that this Head Start played an extremely important educational and social role in the lives of many inhabitants of Brigham City.

The Influence of L1 and L2 on Perceptual VOT Boundaries in Initial-Stage L3

January 01, 2013 12:00 AM
Jeffrey Green, University of Utah Linguistics Although learning a second language can be difficult, especially for adults, many people believe that once an individual has acquired a second language, it will be easier to learn a third. Individuals may utilize strategies learned from studying a second language (L2) to their study of a third, but this does not necessarily mean that learning a third language (L3) will be easier. As individuals study an L3, their knowledge of both their native language (L1) and their L2 will compete with their developing knowledge of the L3. Previous research has shown that during early stages of L3 acquisition, both L1 and L2 phonology (that is, the underlying sound system of a language) influence the phonology of their L3. This is evident, for example, in learners’ production of some word-initial consonants, such as d, p, and k. Languages differ in the timing between the articulation of the consonant and the beginning of vibration of the vocal folds (voicing) associated with a following vowel sound. This timing is known as Voice Onset Time (VOT). Studies suggest a stronger influence from L2 than from L1 in L3 VOT production. However, learners in these studies had some (if limited) knowledge of the L3, and the influence of this knowledge is unclear. In addition, previous studies have addressed L3 production, but not L3 perception. Research has yet to investigate (i) the influence of L1 and L2 phonology in the very initial stages of L3 acquisition (when the language is totally unfamiliar), and (ii) the influence of L1 and L2 phonology on the perception of VOT boundaries. This study investigates (i) and (ii) by presenting English and Spanish bilinguals with stimuli representing a range of VOT in their L1 and L2, as well as from a third, unfamiliar language in a series of tasks designed to elicit evidence of VOT boundaries in each language. The results of these tasks will be examined to determine whether learners rely more on their L1 or their L2 for processing a third, unfamiliar language. Preliminary results and analyses will be available by February 2013. This research will give important insights into the process of acquisition of a third language.

Look Who’s Talking: Exploring Writing Conference Interactions and Subsequent Revision

January 01, 2013 12:00 AM
Ryan Krage, Utah Valley University English and Literature Within Freshman Composition Studies, little research has been produced on writing conferences between students and teachers since Laurel Johnson Black’s Between Talk and Teaching: Reconsidering the Writing Conference in 1998. Most published research has not included any systematic information about the nature of the writing conference, a consultation between the student and teacher designed to discuss the student’s paper in order to make changes. Student feedback and involvement in this study is of crucial importance because there is no existing data whether teacher-student conferences are working from a student perspective. The major research question is “What is the relationship between types of teacher-student conference interaction and subsequent revision of students’ papers?” The purpose of the research is to discover what the writing conference between teacher and student accomplishes in terms of better writing outcomes, what the expectations of the student are, and what and how the power dynamics between student and teacher affect the quality and quantity of revision from both student and instructor perspectives. We will examine the connection of students’ perceptions about the writing conference to their final scores and other data. During the spring 2012 semester, we drafted three surveys designed to capture students’ perspectives and expectations regarding the conferences (a pre-conference, post conference, and post final grade). The methodology includes transcribing voice recordings of conferences, collecting student surveys before and after conferences, and collecting students’ rough and final drafts for two papers during the semester. This raw data will be coded into usable data, which will then be analyzed to identify behaviors that facilitate or impede the conference and determine its overall effectiveness. We hypothesize that a dialogic conference will occur when the power dynamic between student and teacher is more equitable, resulting in more student-ownership over the revision process. The extent of student ownership within the revision process will be determined by both the quantity and quality of revision. These findings will, in turn, enable teachers to take a closer look at the nature of their own writing conferences in order to develop better consultations with their students.

Characterizing the Role of HspB2 in Cardiac Metabolism and Muscle Structure Using Yeast and Mammalian Cells

January 01, 2013 12:00 AM
Whitney Hoopes, Brigham Young University Microbiology and Molecular Biology HspB2 is one of eleven known small Heat Shock Proteins (sHSP) that is expressed in human heart and skeletal muscle. In response to cellular stress, heat shock proteins play a vital role to help misfolded proteins and proteins susceptible to denaturation maintain their structure. Two members of the sHSP family, CryAB and HspB2, are both required for normal heart function and cardiac muscle integrity. CryAB-deficient mice have defects in cardiac muscle structure whereas HspB2-deficient mice display energy deficits (Rajasekaran et al. 2007). The contrasting phenotypes of CryAB and HspB2 suggest differential roles for these molecular chaperones in the heart. HspB2 has been found to localize with the mitochondria in several different cell lines and overexpression of this sHSP has been shown to support survival of cells against heat stress (Nakagawa, 2001). To understand the role and mechanism of HspB2 in cardiac muscle energy regulation, we have used a yeast two-hybrid (Y2H) system to uncover the novel protein binding partners specific to HspB2. From screening a human heart cDNA library, HspB2 interacted with approximately 10,000 out of 20 million plasmids. We have sequenced more than 1000 of these putative interactors and have identified over 100 unique proteins. Over 40% of these protein partners are involved in mitochondrial energy production and another 25% in cardiac muscle structure maintenance. In addition, we have identified an interaction between HspB2 and the related sHSP CryAB. We then compared this data with mitochondrial HspB2 binding partners identified by mass spectroscopy (MS) through a large-scale bioinformatics analysis and constructed a protein-protein network. Y2H dependency tests were conducted to verify interactions identified by both Y2H and MS. Following yeast verification, a subset of the interactions were confirmed in C9H2 cardiac cells through coimmunopurification. Our research describes the first protein-protein interaction network for any sHSP, supports a role for HspB2 in mitochondrial energy production and suggests a link between mitochondrial energy production/redox stasis and stressed cardiac muscle maintenance.

Impact of Ungulate Browsing on the Development and Resilience of Aspen Forests

January 01, 2013 12:00 AM
Christian Boekweg, Brigham Young University Plant and Wildlife Sciences It has been shown that the population densities of deer and elk in the Rocky Mountains are at an unprecedented high. The heavy browsing of said species (ungulates) on regenerating aspen suckers can be devastating, leading to homogenously aged aspen stands that now have reduced resilience to drought, fire or logging disturbance, and an increased susceptibility to pathogens. Lastly, the extensive, highly selective herbivory of the aspen suckers may cause a shift in forest composition away from the aspen tree to an increase in other, less palatable species. We selected 186 sites across the 3 national forests of Central and Southern Utah, and characterized stand composition using the point quarter method. Stands were defined by successional stages from early to late; aspen, mixed or conifer. We then used pellet counts to estimate animal density and evaluated the effect of animal density and stand type on the regeneration success of aspen suckers. The key result of our study is that high ungulate density is highly correlated with reduced sucker heights (p<0.001). This indicates that high ungulate density impedes aspen regeneration by preventing aspen from recruiting into the overstory. Our study suggests that closer monitoring of the long term effects of herbivory on aspen development and regeneration is necessary to ensure vigorous aspen forests.

Identification of Novel Serum Biomarkers for Alzheimer’s Disease Using an Integrated Serum Proteomics Method

January 01, 2013 12:00 AM
Jesse Cobell, Brigham Young University Biology Alzheimer’s disease (AD) is the sixth major cause of death in the U.S. However, at present, no diagnostically useful serum markers for AD have been identified. Hence, we used a novel serum proteomic approach to interrogate the low molecular weight proteome for serum biomarkers. This allowed for survey of around 5000 low MW species. To reduce ion suppression, an acetonitrile precipitation step was used to remove high abundance serum proteins. Protein-depleted sera from 58 cases and 55 controls were analyzed by cLC-ESI-QTOFMS/MS using reverse phase chromatography. Data were reviewed using Applied Biosystem’s Analyst-QS software to compile spectra. Differentially expressed peptides (cases vs. controls) were analyzed statistically using the Student’s t-test. This led to discovery of 36 candidate biomarkers. Additionally, we compared AD subjects with more severe disease (Clinical Dementia Rating (CDR) =3) with non-demented individuals (CDR=0) and found 23 biomarkers. Furthermore, on comparison of mild and moderate stage AD individuals (CDR = 0.5, 1, 2) with those with severe disease (CDR = 3), we found 24 biomarkers. Some of these biomarkers appeared more prominent in one gender. We then fragmented several of these biomarkers on an LTQ-Orbitrap XL hybrid mass spectrometer and cLC-ESI-QTOF-MS/ MS system using collision-induced dissociation to determine amino acid sequence analysis. We have identified 5 biomarkers and are in the process of identifying the remaining biomarker species. This serum proteomics approach found statistically different peptide abundances in subjects with AD. Additional biostatistical evaluations are underway to determine sensitivity and specificity of individual biomarkers and their combinations. Future studies will assess biomarkers according to disease stage and validate current biomarkers in blinded comparisons of other AD sera. This serum proteomics approach appears promising in locating and identifying clinically useful serum biomarkers of AD.

The Effects of Exercise on Synaptic Plasticity in the CA1 Region of the Hippocampus in Mice Who Experience Acute Stress

January 01, 2013 12:00 AM
David Marriott, Brigham Young University Physiology and Developmental Biology Acute stress has been shown to decrease Long-Term Potentiation (LTP) in the CA1 region of the mouse hippocampus. Additionally, stressed animals show signs of anxiety and suffer decreases in spatial memory tasks such as object recognition and maze navigation. Conversely, exercise has been shown to increase spatial memory task performance in mice, attenuate anxiety-like behaviors and enhance neurogenesis and LTP in the dentate gyrus. While the effects of stress and exercise have been examined independently, there is currently a lack of experimental evidence that connects how stress and exercise, when experienced by the same animal, might modulate LTP in the CA1 region of the hippocampus. In our ongoing study, mice have been separated into a control group, a stress group (restraint and tail-shock), and an exercise + stress group where mice have voluntary access to a running wheel (for 30 days) before undergoing the stress protocol. We hypothesize that exercised animals will experience a protective effect against the reductions in CA1 LTP. In the stress only group, preliminary data shows a modest stress effect on LTP, yet we are learning that factors such as controllability of the stressor or the ability to develop coping mechanisms might potentially attenuate

Modified Nucleosomes and the Effect on Positioning

January 01, 2013 12:00 AM
Tara Hammond, Brigham Young University Microbiology and Molecular Biology Genetic diseases, including Alzheimer’s, cystic fibrosis, and many cancers, can be detrimental to individuals and their families. Gene therapy can possibly cure these diseases by inserting a correct copy of the gene into the chromosome, upregulating good genes, or downregulating the harmful gene. When DNA is packaged into a cell, it wraps around histones-an octamer made up of two tetramers, each containing four different subunits to create nucleosomes. Where the nucleosome sits on the DNA sequence determines whether or not a gene can be transcribed. In heterochromatin, nucleosomes are denser and DNA is tightly packed, thus causing genes to not be transcribed. Euchromatin contains looser packed nucleosomes and therefore has higher transcription levels. This project seeks to determine if modified nucleosomes have DNA sequence preferences. We are working with histone H3 to tri-methylate lysine 4, which has been shown to correlate with euchromatin. The modified histone will be used to create octamers. C. elegans DNA will be added to modified histones and to unmodified histones and allowed to create nucleosomes. The wrapped DNA will be sequenced, allowing us to compare the modified and unmodified nucleosome DNA preference. The difference in preference will enhance our ability to know how to move nucleosomes, thus aiding in gene therapy.

APOE e4 Independent Associations in the APOE Gene Region with Cerebrospinal Fluid Levels of Amyloid Beta 42 in Alzheimer’s Disease

January 01, 2013 12:00 AM
Spencer Foutz, Brigham Young University Biology CSF AB42 levels are a biomarker for Alzheimer’s Disease. The APOE e4 allele associates with CSF AB42. Little is known about SNPs in the region independent of apoe e2/e3/e4 isoforms. By adjusting for the effect of these isoforms, statistical analysis uncovered new SNPS associated with CSF AB42. Information was used from 1338 individuals from four datasets, specifically: The WU-ADRC, ADNI, University of Washington, and UPENN. Samples included individuals with and without AD. The 169 SNPs used were extracted from the APOE region and surrounding 50 kb using 1000 Genome Software. Linear regression analysis was performed, adjusting for specific covariates. Adjustments were made for the APOE e2 and e4 alleles before repeating the analysis. Significant SNPs were tested in e3 homozygous individuals. Each series was separately analyzed and combined in a meta-analysis for confirmation. P-values, sample sizes, and effect sizes were used in the meta-analysis. Results from these analyses allowed us to conclude rs769449 is associated with lower levels of CSF AB42 and acts independent of the APOE e4 allele.

Facilitative and Competitive Interactions in Subalpine Aspen-Fir Forests

January 01, 2013 12:00 AM
Jason Bartholomew, Brigham Young University Plant and Wildlife Sciences After disturbances in plant communities (i.e. wildfire), there is a natural succession of plants in which plants colonize the empty area and are gradually replaced by more competitive species. In subalpine forests, the principle colonizers after wildfire are quaking aspen (Populous tremuloides) which are later replaced by subalpine fir (Abies lasiocarpa). It has been shown that aspen facilitate, or enable, the establishment of subalpine fir at their base. This study examines the aspen-subalpine fir interaction in order to better understand the dynamics of the shift from aspen to fir dominance. It is hypothesized that the fir in a facilitated pair eventually exerts a competitive influence on the aspen resulting in a decrease in aspen fitness. The growth rates of the two species were examined in different stand types (aspen, mixed and subalpine fir), as independent trees or in facilitated pairs, and in three separate size classes. Samples were collected by taking a core sample or cross-section from trees within the categories listed above. The age and annual growth rings were measured with a measuring stage. The annual growth rings were used to calculate basal area increase (BAI) which was used to determine growth rates. The results suggest the growth rate of aspen in facilitated pairs decreases as firs mature thereby decreasing fitness within the aspen population due to competitive influences from facilitated firs. This may explain the mechanism for the successional shift that can significantly impact indigenous animal populations and local fire cycles.

Linkage Analysis of Late Onset Alzheimer’s Disease Population in Search of Chromosomal Region Harboring Rare Causal Variants

January 01, 2013 12:00 AM
Kevin Boehme, Brigham Young University Biology Late Onset Alzheimer disease (LOAD) is caused by a complex combination of genetic and environmental factors. While multiple loci have been found associated with an increased risk of LOAD much of the heritability of the disease has yet to be accounted for. The prevailing thought now is that of rare variants playing an important role in LOAD. In this study we will use linkage analysis to identify novel regions of the genome that may harbor rare disease causing variants. Data for these analysis comes from 748 people (503 with LOAD) from the Cache County study on Memory and Aging. This unique population based sample provides great power for linkage as relatedness differs from siblings to distant relatives and complete pedigree information is available for all of the individuals. We will use LD-pruned SNP data from the Illumina Omniexpress BeadChip and pedigree data from the Cache County samples to perform linkage analysis. Quality control and LD-pruning will be con- ducted in PLINK while the Linkage analyses will be conducted using the MERLIN software. Our findings will be reported in the final poster presentation.

Engineering Pathogen Specific High Affinity T-Cell Receptors

January 01, 2013 12:00 AM
Bryce Anderson, Brigham Young University Microbiology and Molecular Biology Antigen presenting cells digest and display peptides from foreign and infected cells on the major histocompatibility complex (MHC) that are recognized by T-cells through their T cell receptor (TCR). The affinity of TCR:peptide-MHC interactions has been shown to be low however, and in order to effectively use a soluble TCR for therapeutics we need to engineer TCRs with increased affinity. To do this, we have designed a single chain TCR (ValphaVbeta) called LLO118 that is specific for a naturally occurring Listeria monocytogenes epitope. Using yeast display, stable mutants that expressed the LLO118 scTCR at higher levels than the wild type on the surface of yeast were isolated and sequenced. In order to improve affinity of LLO118 we are mutating amino acid residues in the complementarity determining regions, sites important for the TCR to bind with the peptide-MHC. We are generating unique libraries of yeast cells with TCRs that have potential affinity mutations and using fluorescently labeled peptide-MHC tetramers to select cells that have TCRs with higher affinity. By repeating this process with the cells that have higher affinity we are working to get a TCR that binds with much higher affinity than the wild type TCR. These high affinity TCRs are promising for further research in connecting them to a cytokine, greatly reducing systemic damage and other complications caused by administration of this cytokine throughout the body. Thus, our goal is to design a high affinity TCR fused to a cytokine that can be tested for therapeutic use in targeting specific cells in the immune response and improving T cell memory.

GPR55 Modulates the Cellular Mechanism Behind Memory Formation, Suggested Alternative Pathways Require Further Investigation

January 01, 2013 12:00 AM
Spencer Bell, Brigham Young University Physiology and Developmental Biology The hippocampus functions as the memory formation center of the brain. As memories are formed, brain cells in this area undergo changes by which connections between them are either strengthened or weakened, processes known as long-term potentiation (LTP) and long-term depression (LTD), respectively. Receptors located on these cells modulate these processes as they are activated by chemical signals known as neurotransmitters. We sought to examine the effects of a receptor known as G protein-coupled receptor 55 (GPR55) on LTP and LTD in the rodent hippocampus by applying agonists of the receptor, or chemicals that artificially activate it, to brain slices preserved in artificial cerebrospinal fluid. O-1602 is a purported synthetic agonist of GPR55. When we applied O-1602 to rat hippocampal slices during electrical induction of LTP, the magnitude of LTP was decreased when compared to controls. When LTD was induced in the rat hippocampus in the presence of O-1602, no significant difference was observed when compared to controls. Further experimentation involved the application of lysophosphatidylinositol (LPI), a naturally occurring GPR55 agonist, to genetically-engineered knock-out mice which lacked expression of GPR55. LPI is generally considered a more reliable agonist of GPR55, but caused enhanced LTP in wild-type mice which expressed GPR55 when compared with knock-out mice. This inconsistency and other inconsistencies in our data while using O-1602, while perhaps due to other physiological differences between rats and mice, may suggest the possibility that O-1602 activates a receptor other than GPR55. Our further research will seek to investigate this possibility.

Baicalein and Light Stimulation as Clinical Therapies for Addiction

January 01, 2013 12:00 AM
Brad Ackerson, Brigham Young University Neuroscience The highjacking by alcohol and drugs of abuse of the mesocortico-limbic system in the brain is responsible for addiction, specifically the ventral tegmental area (VTA) and its projecting dopaminergic neurons to the nucleus accumbens (NAc). Over the course of addiction, a hedonic response is developed from lower than normal levels of dopamine (DA) in which the individual pursues drug-seeking behavior. The current accepted treatment methods for addiction are replacement drug therapies, group therapy, or individual counseling – the prior being associated with additional side-effects and an inability to overcome the hedonic response of the addiction. The aim of this study was to evaluate alternative and natural therapeutics that produce long-term potentiation (LTP) of the neuronal systems involved in order to overcome addiction with minimal to no side-effects. Using fast-scan cyclic voltammetry (FSCV), the effects of baicalein, a flavonoid isolated from the root of Sculletaria Baicalensis, and low-level laser therapy (LLLT) on DA release in the NAc core were evaluated in vitro and in vivo in Wistar rats. Local stimulation evoked in vitro demonstrated that baicalein administration (10, 50, 100 uM) 30 minutes prior to 80 mM ethanol attenuated the DA inhibition of ethanol. DA signals were evoked in vivo in the core of the NAc by electrical stimulation of the medial forebrain bundle (MFB) at the level of the lateral hypothalamus (60 Hz, 60 pulses) in isoflurane anesthetized rats. Both the intraperitoneal (IP) administration of baicalein (1.0 mg/kg) and the administration of LLLT (25 Hz, 630 nm) 30 minutes prior to ethanol (2.0 g/kg) administration IP attenuated the DA inhibition of ethanol. These findings suggest that baicalein and LLLT may prove as effective clinical therapies for addiction.

Characterization of Yeast PAS Kinase Through Random Mutagenesis

January 01, 2013 12:00 AM
Kayla Bevard, Brigham Young University Microbiology and Molecular Biology Metabolic diseases, such as obesity and diabetes, are endemic in American society. Mutations in PAS kinase, a recently discovered sensory protein kinase, have been shown to cause Maturity Onset Diabetes of the Young (MODY) in humans (Semplici et al., 2011). In addition, PAS kinase deficient mice, when placed on a high fat diet, display phenotypes related to diabetes including resistance to weight gain, insulin insensitivity and triglyceride accumulation (Hao et al., 2007). PAS kinase consists of a sensory PAS domain that binds to and inhibits the kinase domain (Amezcua et al., 2002). Our model for PAS kinase activation involves the generation of a small molecule ligand that binds to the PAS domain and relieves this inhibition. We are currently engaged in several yeast genetic screens which will identify regions in the full length PAS kinase protein that are essential for either PAS kinase activation or for binding of its substrates. The first screen is based on the ability of PAS kinase, when overexpressed, to rescue a temperature-sensitive mutation in Tor2, the tor2(ts). We have isolated both point mutations and truncations in PAS kinase which alleviate the tor2(ts). These mutations solidify our model for PAS domain inhibition and will identify novel regions involved in PAS kinase regulation. Our second screen uses the yeast 2-hybrid to select for both point mutations and truncations that increase the affinity of PAS kinase for its substrate, Pbp1. These mutations will help identify key regions of PAS kinase utilized in substrate recognition. Finally, we will compare the regions affected by our mutations with the regions of PAS kinase that we have found to be well-conserved throughout evolution. Analysis of these specific genetic regions will help elucidate the molecular mechanisms involved in the regulation and function of PAS kinase, a key player in the development of metabolic disease.

“Killing Me Softly”: The Economic Toll of Forest Fire Repression

January 01, 2013 12:00 AM
Adam Olson, Brigham Young University Plant and Wildlife Sciences Forests systems of the Central Rocky Mountains rely on an intricate balance of natural disturbance cycles in order to develop properly. Forest fires are one such disturbance, however, certain fire characteristics, particularly fire severity, can vary widely across forest landscapes. In our study, we examined the influence of fire severity on aspen regeneration as well as aspen defense against wildlife and livestock browsing. Our results indicate that high or moderate burn severity is more favorable to aspen regeneration and survival. These areas of severe burn result in a higher density of aspen suckers, more vertical and lateral growth, greater chemical defense concentrations, and less browse damage than the neighboring plots of low or no burn. This data suggests that fire severity should be taken into account when considering plant regeneration and susceptibility to browse damage in burned landscapes.

Sirt1-Mediated Suprression of Cell Death in Breast Cancer

January 01, 2013 12:00 AM
Matthew Whited, Brigham Young University Biochemistry Several lines of evidence suggest that protein lysine acetylation pathways are deregulated in cancer (1). Moreover, deacetylase inhibitors are emerging as important anti-tumor therapeutics, suggesting that the forced reprogramming of protein-lysine acetylation is toxic to tumor cells. In this study we show that Sirt1, an NAD+-dependent Sirtuin deacetylase that promotes cancer cell survival, is aberrantly mislocalized to the cytoplasm of breast tumor cells. Moreover, the depletion of cytosolic Sirt1 by siRNA sensitizes breast tumor cells to paclitaxel-induced death. Previously, we developed a biotin-switch proteomics approach to identify cytosolic Sirt1 substrates (2). This approach yielded a variety of substrates with roles in metabolism, survival, and oxidative stress signaling. Our current work focuses on three of the proteins identified as Sirt1 substrates: SOD1, DJ-1, and 14-3-3z. SOD1 and DJ-1 both suppress oxidative stress-induced death, and high levels of 14-3-3z expression suppress chemotherapy-induced apoptosis and correlate with negative patient outcomes in breast cancer. Our preliminary results suggest that acetylation of DJ-1 and SOD1 suppress their anti-oxidant functions, while acetylation of 14-3-3z disrupts its binding to pro-survival proteins. Taken together, our data support a model in which cytosolic Sirt1 activates multiple pathways that work together to promote tumor cell survival.

Tissue Specific Isolation of Nucleosomes in Caenorhabditis elegans

January 01, 2013 12:00 AM
Hyrum Shumway, Brigham Young University Microbiology and Molecular Biology Epigenetics is the study of factors of gene regulation that do not stem from the primary DNA sequence. One such example of epigenetic gene regulation is where DNA wraps around histone proteins to form nucleosomes. The positioning of nucleosomes is the first order of control for genic transcription. Wrapped DNA is less accessible for transcription compared to DNA that is nucleosome free. Model organisms for human epigenetics such as the nematode Caenorhabditis elegans are invaluable because of their ease in manipulation and because the components of nucleosomes (histone proteins and DNA) are highly conserved across phylogeny. The purpose of my particular research is to develop and validate a new protocol for tissue-specific isolation of nucleosomes through immunoprecipitation in young adult C. elegans. This protocol leverages green fluorescent protein fused to histones to research nucleosome positioning in the germ-line cells of C. elegans nematodes. When successful in our animal model, this procedure is the first step in allowing analysis of chromatin architecture of any tissue at any developmental or disease state including human cells. The widespread prevalence and implications of human disease is staggering in magnitude. Research is ongoing to decrease morbidity, increase prevention, and fight infection. With epigenetic tools, this vital research is benefitted and supplemented.

The Effect of Male Dominance on Female Mate Choice in Poecilia gillii

January 01, 2013 12:00 AM
Michael McEntire, Brigham Young University Biology Female mate choice (intersexual selection) and male dominance interactions (intrasexual selection) can each play important roles in sexual selection. These two mechanisms tend to be discussed in isolation. The goal of this study is to explore the interaction between these two forms of sexual selection. To test this idea, we focused on the livebearing tropical fish system Poecilia gillii. We grouped males into similarly sized pairs and observed them for a week to determine which male was dominant. These pairs were then presented to females in mate choice trials to ascertain female preference. We also photo- graphed the males to determine coloration. We found that females were unable to detect dominant males without viewing the physical contest and that carotenoid coloration bore no effect on female preference. Females tended to choose the male to their left, suggesting the preferential use of their right eyes in making decisions on mate choice.

The Role of Timing of Dietary Selenium and Isoflavone Supplementation in the Reduction of Prostate Cancer Risk Factors in TRAMP Mice

January 01, 2013 12:00 AM
Ji Su Park, Brigham Young University Nutrition, Dietetics, and Food Science Selenium (Se) and soy have each been shown to reduce risk for prostate cancer when consumed at high levels. The purpose of this project was to define the molecular mechanisms of prostate cancer chemoprevention by Se and soy, and to describe how timing of dietary treatment modifies those effects. [C57BL/6 X FVB] F1 TRAMP (TRansgenic Adenocarcinoma of Mouse Prostate) male mice were fed stock diets high or low in soy, with or without a supplement of Se (4.0 mg Se/kg BW as Se-meth- ylselenocysteine) by gavage 5 d/wk in a 2 X 2 factorial design. Mice were exposed to different diets starting from conception, 6 weeks, or 12 weeks of age and were sacrificed at 18 weeks. Three-way ANOVA showed that supplemental Se increased serum and liver Se, with significant interactions with both time and soy intake. Selenium dosing decreased BW independent of soy intake and time of dietary intervention. Both Se and soy decreased epididymal fat pad weights, with Se’s effects being more pronounced in mice exposed to diets from conception than from 6 wk. Urogenital tract weights, a measure of prostate proliferation and tumor volume, were significantly reduced by Se supplementation (P<0.001) and soy (p=0.044), independent of time of dietary intervention. Histological examination of mouse prostates is in progress to determine dietary effects on disease progression. These data suggest that, in this model, chemopreventive efficacy of Se and soy does not differ between prenatal and early post-natal introduction.

The Effects of DNA Methylation on Nucleosome Positioning

January 01, 2013 12:00 AM
Marcus Vranes, Brigham Young University Molecular Biology Recent studies have attempted to discover the correlation that exists between DNA methylation and nucleosome positioning, but none have explored the direct effect of DNA methylation on nucleosome formation and positioning. This proposed research will directly test the effects DNA methylation has on nucleosome positioning and whether the histone octamer has preferred sequences to which it binds, which will in turn add our understanding of gene expression and regulation. A better understanding of these concepts will help to aid efforts in gene therapy to better the quality of life of many who suffer from various genetic conditions.

Analysis of the Degradation of Flavor Volatiles in Single Origin High Cacao

January 01, 2013 12:00 AM
Adrian Scottorn, Salt Lake Community College Natural Sciences Chocolate has long been the favorite snack of many, and recent studies have shown multiple positive health benefits of eating dark chocolate in particular, encouraging production and consumption of very high cacao content bars. We have quantified some of the changes that occur to the amount of known flavor compounds contained in a locally made artisan chocolate. The bars we chose were 70% minimum single origin cacao made with as few other ingredients as possible. By first measuring the amount of known flavor compounds, then stressing the bars in various ways, we looked in to what really happens when a quality chocolate bar is mistreated.

Early Parental Death, Genetic Variants and Risk for Alzheimer’s Disease: Building a Risk Profile from the Cache County Study on Memory, Health, and Aging

January 01, 2013 12:00 AM
Michael Peterson, Brigham Young University Biology A person’s predisposition to Alzheimer’s Disease is known to be influenced by both genetic factors as well as environmental factors. One know environmental factor is that known to affect risk for disease is early parental death. The purpose of this research is to better understand the complex factors that influence the disease by analyzing the relationship between the environmental factor of early parental death with genetic variants known to influence the disease. We used extant data from the CCSMHA, an ongoing aging study including 89.7% (5092 of 5677) of all of the eligible residents of Cache County, Utah. This data includes information about environmental and psychosocial stressor of the subjects as well as information about physical examinations, metal screenings, and individuals’ genotypes at many loci that are known to be related to Alzheimers Disease. We used multivariate logistic regression to determine the effect of early parental death by SNP interactions on risk for AD. For the analysis we cleaned the data by removing SNPs less than a minor allele frequency of 0.01, a Hardy-Weinberg equilibrium value of 110-6, and a maximum missing snp call of 0.2. Individuals were also removed if genotyping rate was less than 0.2. After filtering we had 262 cases, 239 controls and 0 missing Final Results will be presented at the Conference.

Genome-Wide Association Study of Visinin-Like Protein Levels, an Endophenotype for Alzheimer’s Disease

January 01, 2013 12:00 AM
Rachel Perry, Brigham Young University Life Sciences Previous studies have indicated that Visinin-like protein (VILIP) may be a powerful tool in predicting disease progression and guiding prognosis of Alzheimer’s disease (AD). Cerebral spinal fluid (CSF) was collected from hundreds of individuals with varying levels of AD. The CSF was then analyzed for levels of VILIP protein using Luminex technology. SNPs were genotyped using the Illumina OmniExpress chip. SNPs found to have a Hardy-Weinberg frequency less than 1×10-4 were not included, assuming that this variance was due to a genotyping error. SNPs and samples missing more than five percent of the data were also not included. Following the cleanup of the data, an association test using linear regression was performed. Covariates used in the analysis included age, gender, and covariates that accounted for population stratification (PC1 and PC2). Over one hundred SNPs were found with a p-value less than 1×10-5. The genomic inflation factor for the generated data was 1. One marker showed significance at the genome-wide level. We have identified a genetic marker that shows significant association with CSF VILIP levels. This finding may provide insight into genetic control of VILIP levels, which may be a useful in understanding the pathological processes involved in AD.

Anodic Stripping Voltammetric Analysis of Lead, Cadmium, and Copper in the Jordan River, Utah

January 01, 2013 12:00 AM
Chris Thurman, Salt Lake Community College Natural Sciences This project is an ongoing multifaceted investigation of the Jordan River. The study’s intent is to monitor and asses the overall condition of the river from Utah Lake to the Great Salt Lake. Samples of river and pond water, typical vegetation such as cattails, and some soils have been collected with reference to sites along the river that may serve as sites for the introduction of waste and other contaminants. These samples have so far been examined with respect to temperature and dissolved oxygen at the sampling point. Two river samples, one pond sample, and plant sample have been analyzed by ICP-MS for 20 different metals. The levels of Lead, Cadmium, and Copper have been determined by anodic stripping voltammetry at the ppb level in a variety of other water samples from the river. The results of these measurements are disused and presented Geospatially.

The Association Between Pattern Separation and Depression

January 01, 2013 12:00 AM
Matthew Schneider, Brigham Young University Physiology and Developmental Biology Alzheimer’s disease, the most common form of dementia, affects millions of people per year. Research has shown that Alzheimer’s affects the hippocampus brain region, which is involved in learning and memory. Understanding learning and memory functions is imperative to comprehending both healthy brain functions and Alzheimer’s disease. Many researchers seek to understand both the causes and treatments of the disease, but tangible information remains elusive. Studies thus far have shown that to encode memories, the brain must change neural synapses to either strengthen or weaken those pathways, a process known as synaptic plasticity. Using electrophysiology techniques on mouse hippocampal slices, this project will provide further insight on memory formation and regulation by imitating synaptic plasticity mechanisms. I will look at a specific cellular pathway involving the protein receptor GPR55, which has recently been shown to induce synaptic plasticity. By understanding how the GPR55 pathway functions, this research will contribute to the understanding and treatments of Alzheimer’s and other neurodegenerative diseases.

Analysis of Dental Parameters, Fluoride and pH, in Utah’s Waters, Drinks, and Foods

January 01, 2013 12:00 AM
Lacie Cates, Salt Lake Community College Natural Sciences According to the Salt Lake Valley Health Department 1 the optimal level of fluoride is 0 .7 to 1.2 ppm in drinking water. Also acidity of many foods and drinks leads to tooth decay. In 2003 the State of Utah started adding fluoride to tap water. Then in 2008 Utah counties voted on addition of fluoride resulting in a variation of water treatment from county to county. At present the state has about 50% of the population receiving fluoride treated water with the aim of providing the 1 ppm fluoride level. It has also been reported that some counties are considering cutting back to about 0.7 ppm 2 . This study examined the pH and fluoride content of water samples from the major population counties in Utah. Fluoride levels ranged from 0.08 – 0.92 ppm. The pH values for these samples ranged from 6.26 -8.08. A further study of the fluoride levels and pH in bottled water and other drinks and foods such as fruit and cheese was conducted because many people in Utah do not drink tap water, particularly in regions of high water hardness or areas where taste and / or odor can be off putting. The pH values ranged from 2 to 8. The most acidic being colas and citrus based drinks and foods. The fluoride values varied from 0.03 to 0.47 ppm.

Adaptation of Staphylococcus Aureus to UV-C Light

January 01, 2013 12:00 AM
Kristian Johnson, Dixie State University Biology Antimicrobial methods, such antibiotics and Ultraviolet (UV) irradiation, have been a means of suppressing prokaryote proliferation for nearly a century. Over the last several years, scientists have found that numerous strains of prokaryotes have developed resistance to antibiotics. Concurrently, the process of bacterial irradiation using UV-C is common practice in a variety of sterilization applications. As revealed in the seminal work by Chang et al. inactivation curves for Microorganisms such as Staphylococcus aureus (Staph) were established in 1985. Their values indicate survival rates based on Intensity, which is defined as the time of UV irradiance per unit area. Similar to the evolutionary evidence of antibiotic resistance, we are interested in the selective pressure UV-C has on Staph. By recapitulating Chang’s experiment nearly 30 years later, our preliminary results indicate an increased resistance to UV-C in Staph. In this experiment, we determine a current UV-C dose-dependent kill rate function for Staph.

Chytridiomycosis-resistant Frog Populations in Southern Utah

January 01, 2013 12:00 AM
Chancen Hall and Nichkolas Hadley, Dixie State University Biological Sciences Batrachochytrium dendrobatidis (chytrid fungus) is prevalent worldwide, and the resulting chytridiomycosis has contributed to at least 168 amphibian species extinctions. In 2010, B. dendrobatidis was discovered in the greater Zion National Park area of southwestern Utah. Because few populations have shown resistance to chytridiomycosis, we decided to explore the effects of this disease on populations of Hyla arenicolor (canyon tree frog). We tracked the spread of B. dendrobatidis by testing skin samples taken annually from several different canyons and monitored population sizes. During the three years of our study, infected populations did not show subsequent population declines. This suggests that H. arenicolor population size in this region is unaffected by B. dendrobatidis. In the future, testing hypothesized explanations for surviving infection could help us identify populations not at risk and thus allocate conservation resources more efficiently.

GPR55: A Potential Enhancer of Learning and Memory in the Hippocampus

January 01, 2013 12:00 AM
Rachel Schneider, Brigham Young University Neuroscience The ability to create distinct memories for very similar stimuli and events is called pattern separation. Pattern separation is thought to be dependent on neurogenesis (the birth of new neurons) in the dentate gyrus, a subregion of the hippocampus. Neurogenesis is reduced in depression, as is overall memory performance. It has been proposed that depression negatively impacts pattern separation abilities, however a link between depression and performance in pattern separation memory tasks has yet to be identified. Accordingly, we designed a study to investigate the relationship between pattern separation performance and level of depression. Eighty-two participants completed a pattern separation memory test and a set of questionnaires to gauge their level of depression. During the task, participants were presented with 600 images one at a time on a computer screen in a continuous recognition paradigm. Participants were asked to determine whether each image was new, old, or similar. Images seen for the first time during the task qualified as “new”, images that were repeated following a variable delay qualified as “old”, and images that were similar to previously presented stimuli, but not exactly the same, qualified as “similar”. A pattern separation score was calculated based on the proportion of correctly identified similar stimuli. We found a negative correlation between depression scores and pattern separation scores (r(82) = – 0.301, p < 0.01). This relationship held constant even when we controlled for other factors known to affect neurogenesis, such as exercise and anxiety levels. These results provide support for the theory that depression is negatively related to pattern separation performance, possibly due to a decrease in neurogenesis in the hippocampus.

Endocannabinoid Biosynthesizing Enzyme Expression in Hippocampal Stratum Oriens Neurons

January 01, 2013 12:00 AM
Ryan Williamson, Brigham Young University Physiology and Developmental Biology The hippocampus is thought to mediate learning and memory by altering the strength of synapses within its circuitry. In many cases, this synaptic plasticity can be induced by intracellular signaling molecules. Lipid-based intracellular signaling molecules called endocannabinoids have been shown to modulate or mediate synaptic plasticity among hippocampal pyramidal cells and stratum radiatum interneurons; however, the role of endocannabinoids in mediating synaptic plasticity among interneurons in the stratum oriens is still unclear. Our goal was to determine whether stratum oriens interneurons have the machinery necessary for endocannabinoid production and, if so, whether this machinery is expressed in a sub-type specific manner. To do this, we used patch clamp electrodes to extract single cells from rat hippocampal slices and analyzed the expression of endocannabinoid biosynthetic enzyme mRNA using quantitative real-time PCR. In this analysis, we examined cellular expression of two interneuron markers, GAD65 and GAD67, as well as several calcium-binding proteins and neuropeptides to determine interneuron subtype. We also analyzed cellular expression of several endocannabinoid biosynthetic enzymes, including N-acyl phosphatidylethanolamine phospholipase D, diacylglycerol lipase alpha, and 12-lipoxygenase, as well as type I metabotropic glutamate receptors. Preliminary data suggests that stratum oriens interneurons express mRNA necessary for endocannabinoid biosynthetic enzymes. Additionally, we identified interneurons that coexpress mRNA for somatostatin and diacylglycerol lipase, suggesting that O-LM cells or another somatostatin-positive interneuron subtype may possess the enzymes necessary to produce the endocannabinoid 2-arachidonoylglycerol. Further work will allow us to examine how endocannabinoid biosynthetic enzyme expression correlates with other interneuron subtypes in the stratum oriens.

Validation of Cache County Genotype Data

January 01, 2013 12:00 AM
Aaron Sharp, Brigham Young University Biology The Cache County study on memory, health, and aging has played a significant role in several studies. However, there is some potential skepticism in the scientific community about its sample. The population in Cache County is derived from a diverse group of founders, but it is perceived by some to be an isolated population. If so, conclusions discovered there might not apply to other populations. Our objective is to compare the Cache County data to a panel of genetic data—provided by the International HapMap Project and the Alzheimer’s Disease Neuroimaging initiative—that is known to be representative of typical European-American populations. Doing so will indicate whether the genetic diversity in the Cache County sample is characteristic of an isolate or not. Analysis will be done using the open source “Plink” analysis toolset, including the –cluster and –mds-plot computational algorithms. Using –cluster groups individuals according to identity by state distances. The –mds-plot algorithm creates a scatter-plot of the individuals in 2-dimensional space, identifying any systematic difference between the Cache County data and the general population. We expect that the Cache County data will be representative of general European-American populations, because of its diverse group of founders.

The Effects of Temperature and Water Availability on the Germination of Bromus Rubens

January 01, 2013 12:00 AM
Rachel Nettles, Brigham Young University Plant and Wildlife Sciences Background/Questions/Methods

Association of the CETP Gene with Cognitive Decline and Dementia in the Cache County Study

January 01, 2013 12:00 AM
Caitlin Munger, Brigham Young University Biology Alzheimer’s is a fatal, non-treatable neurodegenerative disease and the most common cause of dementia. While no one gene has been found to determine the development of Alzheimer’s, past studies have established a strong hereditary influence on Alzheimer’s. So far, only 5 genes have been found which replicably contribute to the genetic risk of developing Alzheimer’s. However, the gene for Chlolesteryl Ester Transfer Protein (CETP) has been identified as a possible new contributor to the genetic risk factor. In order to test this association we obtained data on over 4000 subjects studied in the Cache County Study on Memory, Health and Aging over a 15-year period. This data included DNA samples, cognitive decline rates and incidence of dementia–particularly Alzheimer’s Disease. DNA samples were SNP genotyped using quantitative PCR. The SNP genotypes and corresponding phenotypes for each subject were then analyzed for association usingmixed linear models and for survival, or the amount of time until the disease appeared, using Cox proportional hazard models. We found a correlation between the V405I SNP and a decreased rate of cognitive decline. We found that for each additional G the rate of decline decreased by 0.6 points per year on the MMSE test. The identification of CETP as a player in the genetic risk for Alzheimer’s and dementia will provide much needed information on the genetic factors involved in dementia and allow for possible future therapeutic targets.

Subduing the Flu: New Alternatives to Amantadine

January 01, 2013 12:00 AM
Joseph Moulton, Brigham Young University Physiology and Developmental Biology With the advent of recent mutations in the influenza A viral genome, drugs that previously blocked the proton flux responsible for disassembly of the viral envelope and exposure of viral RNA to the transcriptional machinery of the host cell have become ineffective. Our study of the M2 hydrogen ion channel responsible for this flux has led to a vastly-increased under- standing of the mechanisms behind the conductance activity and potential blockage of these transmembrane tetramers. By embedding M2 proton channel subunits of the S31N mutant strain into liposomal bilayers and suspending these bilayers in the buffers and ionic gradients characteristic of the intracellular environment, we have been able to simulate and observe nor- mal functioning of the influenza A virus. Using these liposomal bilayers, we have developed a series of experimental protocols to test a variety of amantadine- and rimantadine-related drugs for successful blockage of M2 S31N proton conductance. Our research presentation will be centered around the mechanisms of this channel and the favorable results that we have obtained from many of these drugs.

A Measure for Body Image and Social Comparisons in Women

January 01, 2013 12:00 AM
Paige McAllister, Brigham Young University Psychology Negative body image among younger women has grave ramifications including eating disorders, depression, anxiety, and low self-esteem. In order to more accurately detect negative body image among women, we created the Body Image and Social Comparison Survey (BISCS). The BISCS is a 10 item self-report measure using a 4-point Likert scale. Our two domains were attitudes about personal body image and social comparisons. We took a convenience sample of 115 women between the ages of 18 and 30 and administered our survey to establish psychometrics for the BISCS. It was discovered that the BISCS has high internal consistency, and 43 out of 45 of the Pearson correlations between items were significant. Factor analysis revealed two primary factors. All questions loaded onto the factors we expected them to except there was one question that loaded onto both factors. Content validity ratios ranged from .48 to .81. Future applications and improvements for the BISCS are discussed.

Trial by Ordeal: A Critical Analysis of Violence Against Women in Twenty-First Century Public Discourse

January 01, 2013 12:00 AM
Sasha Trae, Dixie State University Communication This research critiques prevailing economic, political, and social discourses that create or uphold disadvantage, inequity, and oppression against women. Using multiple Critical Discourse Analysis tools, such as, lexical suppression and absence and representational strategies, this researcher will examine activist, political, and socio-cultural discourse, including Take Back The Night, to expose underlying ideology. This paper analyzes ideological functions of these and other constructions identified in the discourse. This researcher will illustrate how the analyzed discourse shapes our reality that the ownership of women’s equality and safety are in the hands of men. Additionally, this researcher will unveil the ideological suppression and absence of the perpetrator; consequently, twenty-first century public discourse places the responsibility in the hands of women to prevent and address violence against women, the victims. Further, this researcher will demonstrate how the revealed ideologies indicate that violence against women is random or unstoppable; thus, setting up women to continue being integrated into a system that is hostile to them. Moreover, the breadth of this ideology indicates that every society within the nations of our world declare that women are a subset of humanity, and that it is men who get to resist relinquishing this equality while women expend their efforts to obtain it. This paper concludes that violence against women is part of an economic and political system that has been codified and written into the laws of nations; therefore, creating and perpetuating the very structures responsible for the violent climate that we fear and live in.

LDS Attitudes Towards Female Gender Roles

January 01, 2013 12:00 AM
Laura Steffen, Brigham Young University Psychology There is a wide spectrum of opinion on female gender roles, or what behaviors are appropriate for women. Attitudes towards gender roles can hypothetically be influenced by a variety of factors, including religion. Sexist views have been found to be held by members of many faiths, including Catholics, Muslims, and Evangelical Christians (Glick, Lameiras, & Castro, 2002; Maltby, Hall, Anderson & Edwards, 2010; Tasdemir & Sakalli-Ugarlu, 2010). To our knowledge, this phenomenon had not yet been studied among members of the Church of Jesus Christ of Latter-day Saints (LDS). Our measure, the LDS Attitudes Towards Female Gender Roles Scale, (LDS-AFGR) was created in the hopes of accurately assessing opinions of female gender roles among the LDS population, in regards to both religious social contexts. All questions on the LDS-AFGR yielded superior to moderate content validity, and two components were yielded by factor analysis. This suggests that our scale has initial promise, and could be further revised to obtain more accurate data about opinions on female gender roles among LDS church members.

Pairing Success in Rhesus Macaques

January 01, 2013 12:00 AM
Adrianne Miller, Brigham Young University Psychology Recent studies in rhesus macaques suggest that social competence and sociality, as measured by ease of forming new relationships, is modulated by genetic and behavioral factors. In research centers that study primates, pairing unfamiliar subjects is the most costly and difficult problem that researchers face. We investigated several factors believed to influence social competence: rearing condition, serotonin transporter genotype (5HTT), temperament, and stress responsiveness, as measured by infant plasma cortisol levels. We assessed 354 pairings from subjects housed at the California National Primate Research Center (n=177 male and n=177 female adult pairings). Temperament and plasma cortisol was assessed at three to four months of age. Analyses showed that males were more difficult to pair than females. High cortisol, nursery rearing, and temperament ratings for high emotionality during infancy was predictive of adult pairing failures. Intriguingly, our data showed that the high risk 5HTT genotype was also predictive pairing failures, and that 5HTT genotype interacted with sex, with pairs of males where one or more of the subjects in a pair possessed the high risk 5HTT allele were more likely to be unsuccessful in their pairings. To the extent that our results generalize to humans, our data suggest that early temperament, perhaps modulated by the serotonin transporter genotype, as well as sex and early experiences lead to social competence and success in social relationships.

A Meta-Analytic Comparison of Individual and Group Treatment Formats

January 01, 2013 12:00 AM
Jyssica Seebeck, Brigham Young University Psychology Until recently, there were very few meta-analytic comparisons between individual and group formats to determine if reliable outcomes were produced. However, Burlingame, Strauss, and Joyce (2013) recently identified a dozen diagnosis specific meta-analyses (bipolar disorder, schizophrenia, etc.) and twenty-three new studies published over the last decade that test for differential format efficacy/effectiveness. This meta-analysis builds upon these by selecting the most rigorous studies drawn from these meta-analyses. More specifically we selected studies that tested equivalent treatments enabling us to make strong causal conclusions about differential efficacy/effectiveness. We began with published meta-analyses that tested for format differences, went to each and determined whether individual studies summarized in these meta-analyses compared treatments that were equivalent. If they did, the study was included herein. We also conducted a literature search to identify studies that tested individual and group treatments not included in the aforementioned meta-analyses. Computed effect sizes tested differential outcomes (group versus individual) and also estimated the effectiveness of format compared to waitlist controls. Moderator variables of outcomes, such as group type and theoretical orientation were also tested. Results are reviewed with reference to treatment recommendations, feasibility of implementation, and evidence based recommendations.

Rearing Conditions and CSF Monamine Influence in Alcohol Consumption

January 01, 2013 12:00 AM
Nickolal Mullen, Brigham Young University Psychology Previous studies have shown that the monoamines are related to risk for alcoholism, and that both are affected by early rearing experiences. This study builds on previous research in examining the effect of alcohol on monoamine neurotransmitter systems, by exposing macaques to a set dose of alcohol and measuring CNS monoamine metabolites. We explored

Adolescents’ and Parents’ Religious Norms: Perception and Influence on Adolescent Behavior

January 01, 2013 12:00 AM
Ryan Woodbury, Brigham Young University Psychology Ample evidence suggests that religiousness can serve as a protective factor against risk behaviors (Regnerus, 2007), and can be an important context for positive youth development (Lerner, Roeser, Phelps, & Benson, 2008). Many correlates of religiousness have been identified, but our understanding of underlying mechanism is still nascent (Regnerus, 2007). Building on the notion of religion as a source of social control, one potential mediator may be religious norms (Cochran, Chamlin, Beeghley, & Fenwick, 2004), or perceptions of the behaviors proscribed and prescribed by religions. Unfortunately, research on religious norms is scarce. Thus, the purpose of the present study was to identify adolescent and parent perceptions of religious norms, examine individual differences in these perceived religious norms, and assess links between perceived norms and adolescent behaviors. Adolescents (N = 419; age range 15-18) and one of their parents (N = 313) completed online surveys. Qualitative questions asked participants to name three behaviors their religion most encouraged adolescents to do and three behaviors their religion most discouraged adolescents to not do. Quantitative measures consisted of ratings of 18 perceived religious norms and frequency of 18 adolescent behaviors. We investigated the following research questions (RQ):RQ 1: What religious norms do adolescents and their parents perceive? Three coders, using grounded theory, placed qualitative responses into themes. Seven themes emerged from adolescents’ and eight themes emerged for parents (see Table 1).RQs 2 and 3: To what extent and in what ways do these religious norms differ by adolescent and parent gender? And, how do these religious norms differ by adolescent and parent religious affiliation? Two MANOVAs (one comparing gender, the other comparing religious affiliation) were run to indicate respective differences. Both qualitative and quantitative religious norms differed between certain religions (not between adolescent gender; see Table 1).RQ 4: To what extent and in what ways do adolescent and parent perceived religious norms correlate? Bivariate correlations between adolescent and parent perceptions of religious norms for negative behaviors ranged from .07 – .51 (M = .26, SD = .09), and for positive behaviors they ranged from -.01 – .53 (M = .31, SD = .10).

Mu Opioid Genotype x Rearing x Sex Effects on Aggression and Antisocial Behavior During Social Challenge in Rhesus Macaques (Macaca Mulatta)

January 01, 2013 12:00 AM
Trenton Simmons, Brigham Young University Psychology Endogenous opioids are believed to modulate social sensitivity and aggression. The mu-opioid receptor gene in rhesus macaques has two common variants thought to be orthologous to human variants: C77G (CG) and C77C (CC). Based on previous studies, we predicted that rhesus macaques with the CG variant would exhibit higher rates of antisocial and aggressive behavior during social challenge. To test this hypothesis, we subjected mother-reared (MR) and nursery-reared (NR) subjects to an intruder challenge. 130 subjects were genotyped for the mu-opioid receptor gene variant. Behaviors were recorded after an unfamiliar intruder of the same sex and age was placed adjacent to the subjects’ home cage. CG, MR males received more non-contact aggression from group members than any other condition (p range<0.012), instigated more contact aggression than any other condition (p range<0.018), and received more contact aggression from the intruder than all other conditions except CC, NR males. In contrast to high rates of aggression, male, CG, MR subjects exhibited the lowest time in social affiliation when compared to all other genotype, sex or rearing conditions (p<0.026) except for CG, NR females. Our findings suggest that the mu-opioid receptor gene modulates aggression and antisocial behavior but only in the context of rearing and sex. These findings suggest one potential pathway for antisocial aggressive behavior development in men.