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Knockdown Of Gonadotropin-Releasing Hormone Ii Receptor Impairs Ovulation Rate, Corpus Luteum Development, And Progesterone Production In Gilts, Amy T. Desaulniers, Rebecca Cederberg, Clay A. Lents, Brett White

Department of Animal Science: Faculty Publications

Reproduction is classically controlled by gonadotropin-releasing hormone (GnRH-I) and its receptor (GnRHR-I) within the brain. In pigs, a second form (GnRH-II) and its specific receptor (GnRHR-II) are also produced, with greater abundance in peripheral vs. central reproductive tissues. The binding of GnRH-II to GnRHR-II has been implicated in the autocrine/paracrine regulation of gonadal steroidogenesis rather than gonadotropin secretion. Blood samples were collected from transgenic gilts, with the ubiquitous knockdown of GnRHR-II (GnRHR-II KD; n = 8) and littermate controls (n = 7) at the onset of estrus (follicular) and 10 days later (luteal); serum concentrations of 16 steroid hormones …

Food As Medicine: Care Management And Nursing Role In Preventing And Remission Chronic Disease, Nan Robinson

General Webinars

Poor nutrition is the leading cause of chronic disease and disability plaguing the US and many other nations today. Lifestyle medicine uses evidence-based therapeutic interventions and highlights the plant-predominant diet to address the root cause of illness. The care manager and nursing role is vital to empower patients to take control of their health to prevent and in many cases greatly improve chronic illness. This presentation will provide key strategies to promote behavior change.

Social Ecological Factors Influencing Participation In Workplace Health Promotion Programming Among University Employees, Emily Frank

Walden Dissertations and Doctoral Studies

Workplace health promotion programming (WHPP) promotes healthy behaviors in employees, reduces negative health risks, reduces overall healthcare costs, and improves workplace outcomes. Despite known benefits of workplace health promotion, research demonstrates low employee participation rates across various settings. There is limited research examining multilevel factors that influence employee participation in WHPP and how the Coronavirus 19 (COVID-19) pandemic impacted workplace wellness offerings and employee participation. The purpose of this qualitative study was to explore factors that influenced participation in WHPP among university employees through a social ecological lens. Thirteen university employees participated in semi-structured interviews through Zoom. Interview questions explored …

Regulatory Complexity Of Cellular Differentiation In Candida Albicans Revealed Through Systematic Screening Of Protein Kinase Mutants, Michael C Lorenz

Faculty, Staff and Student Publications

A recent study in mBio reports the construction and preliminary screening of a library containing mutants of 99 of the 119 predicted protein kinases in Candida albicans (the majority of the remaining 20 are probably essential) (J. Kramara, M.-J. Kim, T. L. Ollinger, L. C. Ristow, et al., mBio e01249-24, 2024, https://doi.org/10.1128/mbio.01249-24). Using a quantitative competition assay in 10 conditions that represent nutritional, osmotic, cell wall, and pH stresses that are considered to model various aspects of the host environment allowed them to phenotypically cluster kinases, which highlight both the integration and specialization of signaling pathways, suggesting novel functions …

Cover And Contents

Turkish Journal of Veterinary & Animal Sciences

No abstract provided.

Parental Experiences And Health Education Perceptions Raising Children With Orofacial Clefts, Ama Agyeibea Amuasi

Walden Dissertations and Doctoral Studies

Congenital abnormalities, such as cleft lip and/or palate (CL/P), are a significant global public health issue that contribute to newborn morbidity and mortality, difficulties in social integration, psychological problems for affected persons, parents, and families. Available health education information and resources on CL/P care for parents and families in Ghana are however minimal. The purpose of this qualitative study was to explore the health education perceptions of parents of children born with CL/P to identify and understand experiences of common psychosocial challenges, potential risk, and protective factors used by parents. Five research questions were designed to examine the health education …

Infant And Adult Human Intestinal Enteroids Are Morphologically And Functionally Distinct, Grace O Adeniyi-Ipadeola, Julia D Hankins, Amal Kambal, Xi-Lei Zeng, Ketki Patil, Victoria Poplaski, Carolyn Bomidi, Hoa Nguyen-Phuc, Sandra L Grimm, Cristian Coarfa, Fabio Stossi, Sue E Crawford, Sarah E Blutt, Allison L Speer, Mary K Estes, Sasirekha Ramani

Faculty, Staff and Students Publications

UNLABELLED: Human intestinal enteroids (HIEs) are gaining recognition as physiologically relevant models of the intestinal epithelium. While HIEs from adults are used extensively in biomedical research, few studies have used HIEs from infants. Considering the dramatic developmental changes that occur during infancy, it is important to establish models that represent infant intestinal characteristics and physiological responses. We established jejunal HIEs from infant surgical samples and performed comparisons to jejunal HIEs from adults using RNA sequencing (RNA-Seq) and morphologic analyses. We then validated differences in key pathways through functional studies and determined whether these cultures recapitulate known features of the infant …

Optimizing Nutrition Status And Patient Outcomes In Adults Receiving Post-Icu Care, Rachelle Pass

Theses and Graduate Projects

Background: Nutrition interventions for hospitalized patients can provide meaningful benefit on patient recovery outcome, length of hospital admission, and overall healthcare costs. Preventing and treating malnutrition is one aspect of optimizing patient outcomes following a prolonged clinical course, including stays in the intensive care unit (ICU).

Purpose: This literature review aims to address how nutrition status can be maximized for a patient’s post intensive care unit clinical course. While early enteral nutrition (EN) when appropriate is accepted as optimal care, there is little standardization for removal of devices to provide artificially administered nutrition and hydration (AANH).

Methods: A comprehensive literature …

Personalized Nutrition: Tailoring Dietary Recommendations Through Genetic Insights, Saiful Singar, Ravinder Nagpal, Bahram H. Arjmandi, Neda S. Akhavan

Kinesiology and Nutrition Sciences Faculty Research

Personalized nutrition (PN) represents a transformative approach in dietary science, where individual genetic profiles guide tailored dietary recommendations, thereby optimizing health outcomes and managing chronic diseases more effectively. This review synthesizes key aspects of PN, emphasizing the genetic basis of dietary responses, contemporary research, and practical applications. We explore how individual genetic differences influence dietary metabolisms, thus underscoring the importance of nutrigenomics in developing personalized dietary guidelines. Current research in PN highlights significant gene–diet interactions that affect various conditions, including obesity and diabetes, suggesting that dietary interventions could be more precise and beneficial if they are customized to genetic profiles. …

The Worry Of Food Insecurity And The Manifestation Of Generalized Anxiety In Relation To Perceived Health Status, Ramona Lynnette Taylor

Walden Dissertations and Doctoral Studies

This study examined the association between the worry of food insecurity and the manifestation of generalized anxiety, and how these factors related to perceived health status among adults aged 18 years and older in the U.S. The study controlled demographic factors such as gender, age, race, and education. Utilizing data from the 2019 National Health Interview Survey (NHIS), a binomial logistic regression analysis was employed. The findings indicated a significant association between those persons who often worry about food insecurity, severe (OR = 7.324, p < .001) and frequent generalized anxiety (OR = 5.185, p < .001) suggesting that individuals who worry about food insecurity have higher odds of experiencing severe and frequent (more than 3 times per week) generalized anxiety. Furthermore, both the worry of food insecurity in persons not sure (OR = 0.120, p = 0.004) and generalized anxiety (OR = 0.623 for severe anxiety, p = 0.009) were found to be significantly associated with lower perceived health status. These results suggest a potential association between worry about food insecurity and negative impacts on mental health and perceived overall well-being. Overall, these findings underscore the significant impact of food insecurity on mental health. Further research, including experimental and longitudinal studies, is necessary to elucidate the causal relationship between food insecurity and the manifestation of generalized anxiety in order to impact positive social change.

Utilizing Retrieval-Augmented Large Language Models For Pregnancy Nutrition Advice, Taranum Bano, Jagadeesh Vadapalli, Bishwa Karki, Melissa K. Thoene, Matt Vanormer, Ann L. Anderson Berry, Chun-Hua Tsai

Information Systems and Quantitative Analysis Faculty Publications

The importance of nutrition during pregnancy cannot be overstated, as it profoundly impacts maternal and fetal health outcomes. Optimal fetal growth and development are contingent upon adequate nutrition throughout gestation, which in turn requires that expectant mothers possess a high level of nutritional literacy. This latter factor may serve as a valuable predictor of pregnancy outcomes. This paper seeks to leverage the capabilities of a retrieval-augmented large language model to provide personalized prenatal nutrition guidance. We employed Meta’s LLAMA 2 model and integrated an expert-curated dataset of nutrition information. Our evaluation, conducted using ChatGPT-based metrics, revealed that while the augmented …

Early Childhood Teachers’ Perspectives On The Challenges Of Teaching Students Who Lack Age-Appropriate Social And Emotional Skills, Rachel Ann Stewart

Walden Dissertations and Doctoral Studies

The problem addressed in this study was the significant increase in the number of students who lack age-appropriate social and emotional skills (SES), which has become a concern, especially for teachers. The purpose of this basic qualitative study was to explore early childhood teachers’ perspectives on the challenges of teaching students who lack age-appropriate SES and what support they believed would help them when working with these students in the classroom. The conceptual framework that guided this study consisted of Bandura’s social learning theory. The focus of the research questions was early childhood teachers’ perspectives on the challenges of teaching …

Metal(Loid) Uptake And Physiological Response Of Coix Lacryma-Jobi L To Soil Potentially Toxic Elements In A Polluted Metal-Mining Area, Qun Zhao, Hongyan Liu, Longhua Wu, Peter Christie, Xuewen Wang, Ghulam Rasool, Guilan Peng

Faculty, Staff and Student Publications

Coix lacryma-jobi L. is a traditional medicinal plant in east Asia and is an important crop in Guizhou province, southwest China, where there are elevated levels of soil mercury and arsenic (As). Exposure to multiple potentially toxic elements (PTEs) may affect plant accumulation of metal(loid)s and food safety in regions with high geological metal concentrations. Field experiments were conducted to study the effects of PTEs on metal(loid) accumulation and physiological response of C. lacryma in different plant parts at three pollution levels. Total root length, number of root tips, number of branches, and number of root crosses increased with increasing …

Gnotobiotic Mouse Models For Characterizing The Role Of The Microbiota On Undernutrition And Early Postnatal Brain Development, Alexandra Elizabeth Byrne

Arts & Sciences Graduate Student Theses and Dissertations

Undernutrition is a serious global health challenge; it accounts for nearly half of all mortality for children under the age of 5. Worse, undernutrition is compounded by intergenerational inheritance and can be transmitted from mother to offspring. The burden of undernutrition is unequally distributed around the world, with South Asia and Sub-Saharan Africa accounting for almost 60% of the global childhood stunting. Undernutrition is detrimental to many aspects of development, including long-term deficits in neurodevelopment, and current interventions rarely ameliorate long-term cognitive and motor deficits. Therefore, other causes of undernutrition need to be elucidated in order to treat this epidemic …

Improving Access To Care For Uninsured Patients In Texas Outpatient Clinics: Achieving Patient-Centered Care, Stephanie Ann Greenwood

Walden Dissertations and Doctoral Studies

Uninsured patients encounter major barriers to accessing healthcare, leading to delayed or missed medical care, higher rates of chronic conditions, and increased financial and psychological stress. The purpose of this integrative review study was to examine the factors that affect Texas residents who lack insurance and require access to healthcare services in outpatient community clinics. The review question was used to explore strategies to improve access to healthcare and strengthen patient-centered care for uninsured patients in Texas outpatient health clinics. A thorough integrative review was completed using empirical and nonempirical literature published between 2019 and 2024. The results of the …

Evaluation Of Maternal Behavior At Calving On Beef Cattle Traits, William Cobie Rutherford

Theses and Dissertations

The objectives of the study were to create a scoring system to assess maternal behavior within 24-h of calving in crossbred beef cows; determine the impact of maternal scores on cow productive responses and evaluate how maternal score varies over animal lifetime; and assess the effect of maternal aggression and perceived mothering ability on calf survivability and growth performance. Calving observations (n = 1,832) were conducted across 12 calf crops from 2017 to 2022 from 680 unique crossbred cows at the Prairie Research Unit, Prairie, MS. Along with routine data collection, dams were subjectively scored for the traits maternal aggression …

Microgreen Production: Impact Of Sanitization Methods On Germination Percentage, Mold Suppression, Microbial Load, And Survival Of Salmonella Spp. On Allium Porrum Leek Seeds., Zonia Elizabeth Caro-Carvajal

Theses and Dissertations

Seed sanitization is crucial for microgreen production to prevent pathogens that compromise quality and safety. This study examined the effects of various sanitization methods on germination, mold suppression, microbial load, and Salmonella spp. survival on leek (Allium porrum L.) seeds. Seeds were treated with Hydrogen Peroxide (HP) at 0.27%, Hot Water (HW) at 85 ± 2°C, Tsunami® 100 (TS) at 0.04%, Vinegar (VN) at 1.1%, and Deionized Water (DI). Germination and mold percentages were recorded over 5 days. HW and HP treatments resulted in significantly higher germination rates (72% and 71.4%) compared to other treatments, with HW effectively preventing mold …

A Multivariate Analysis Of Coliform Microbial Dynamics And Intervention Efficacy In A Complex Ready-To-Eat (Rte) Beef Value Stream, Benjamin Adam Miles

Theses and Dissertations

A complex multi-vector processed beef value stream was biomapped and work-in-process (WIP) was sampled at various processing points that affected the product microbiome. Coliform Petrifilm™ was used to analyze samples qualitatively and quantitatively across the meat and glaze vectors. There was an impact (p≤0.05) of the glaze distribution system on coliforms. The pumps of the glaze system were fully disassembled and additional microbial data were obtained through swabbing. WIP and sponge samples were subjected to 16S V1/V2 gene amplification with primers designed for taxonomic identification. Sequencing was conducted on the Illumina MiSeq platform and bioinformatics were developed in QIIME 2 …

Factors Associated With Undergraduate Students Pursuing Health And Dietetic Careers, Claire Bolen Hardin

Theses and Dissertations

This descriptive cross-sectional study investigated factors that influenced undergraduate students’ career paths within health care and the dietetics field. A 34-item Qualtrics survey was emailed to undergraduate students. Most of the participants (N=355) were females (72.2%), 72.9% were white students and 21.6% were black or African Americans. Results indicated the main reason students chose their major was personal interest. Other reasons included lifestyle, family, potential financial success, and friends. More than 50% of students indicated they personally knew someone who has the job they desire after college. Diversity within majors and health-related professions could be influenced by gender and ethnicity. …

Three Rival Versions Of Physical Education: A Macintyrean Analysis Of The Field, Clayton Michael Whalen

Theses and Dissertations

At both the theoretical and applied levels of analysis, the field of physical education is all too often completely incoherent. There appears to be little agreement as to how school-based programs ought to be implemented or what the goals of such programs really are. No two physical educators run their programs exactly the same and, chances are, those physical educators likely have wildly different understandings of their field and its proper place within the education of our youth. Borrowing from the title of moral philosopher Alasdair MacIntyre’s (1990) book, Three Rival Versions of Moral Enquiry, I’ve chosen to describe the …

Simulated Residual Nitrogen Scavenging And Recovery Among Cover Crop Systems Using Nitrogen-15 In A Corn Production Setting, Curtis Champ Knight

Theses and Dissertations

Nitrogen recovery and contribution to production agricultural systems are critical services provided by cover crops investigated in this study. Research was conducted to evaluate the effect of simulated residual N (SRN) on N recovery in various winter cover crop systems (CCS) and subsequent effects on corn N uptake. Biomass, C and N measurements, 15N recovery, and sources of N acquisition were quantified among CCS. Subsequently, CCS and SRN effects on corn productivity and N status were quantified. Grass-included CCS had the greatest N scavenging ability by CCS termination, though they had negative or neutral effects on corn N acquisition. Brassicas-included …

Salinity Tolerance In The Elymus Genus, Hunter Pegram

Theses and Dissertations

Most crop species are highly sensitive to elevated levels of soil salinity. Increased soil salination has become one of the most detrimental environmental factors limiting agricultural productivity. Agricultural commodity losses due to salinity are currently estimated to be 12 billion USD per year and are expected to increase every year as more acreage is affected by salination. The Elymus genus is composed of approximately 150 species of grasses with geographic distribution that spans the globe. Elymus species are commonly used for revegetation, wildlife habitat, and erosion control. While increased tolerance to soil salinity has been reported that Argentine wheatgrass (Elymus …

Reproductive Ecology And Latitudinal Variation Of Three Cavity Nesting Duck Species In Eastern United States, Hunter Elijah Mentges

Theses and Dissertations

Survival of females, nests, and ducklings strongly influence annual recruitment in North American ducks. Studies of cavity-nesting ducks using nest boxes, such as wood ducks (Aix sponsa), hooded merganser (Lophodytes cucullatus) and black-bellied whistling duck (Dendrocygna autumnalis) historically have investigated extrinsic factors, such as nest predation, and how it influenced nest success. For my study, I evaluated data from 1,403 monitored nest boxes collected from eight states, 2020–2022. I studied intrinsic characteristics related to reproduction, such as egg and clutch sizes, and eggshell strength in the 3 cavity-nesting ducks. Variables including clutch size, egg mass, parasitism, and onset of incubation …

Risk Assessment Of Severe Weather Events Affecting Animal Production Facilities, Impana Hassan Swamy Gowda

Theses and Dissertations

Our research primarily focuses on the risk assessment and vulnerabilities of commercial broiler farms/houses due to severe weather events. The area of focus is counties within a 60-mile radius of broiler processing plants, as most broiler farms/houses are centrally located around these plants. Using data from the National Oceanic and Atmospheric Administration (NOAA), we calculate a risk index to evaluate the vulnerability of these counties. This study incorporates historical weather event data to identify patterns and predict future risks, providing valuable insights for disaster preparedness and mitigation strategies. Through a detailed analysis of various severe weather events, including tornadoes, hurricanes, …

Understanding The Relationship Between Neonatal Dairy Calves’ Gut Microbiota And Incidence Of Diarrhea Using Full-Length 16s Rrna Gene Amplicon Sequencing And Machine Learning, Jalyn Grace Hawkins

Theses and Dissertations

A healthy gut microbiome is crucial for the development, growth, and health of dairy calves; however, diarrhea in pre-weaned calves is highly prevalent, difficult to treat, and causes detrimental effects to the dairy industry. This study characterized early gut microbiota using longread-based 16S rRNA gene sequencing and investigated its associations with calf diarrhea and colostrum microbiota. The full-length 16S rRNA gene was amplified and sequenced on a Nanopore sequencer. We identified shared bacterial species in colostrum and calf feces, whose abundance in calf feces reduced with age. Diarrheic calves exhibited differing gut diversity before, during, and after diarrhea, and harbored …

Movement Ecology And Nest-Site Selection Of Rock Iguanas Across A Gradient Of Anthropogenic Disturbance, James Walter Wehsener

Theses and Dissertations

Analysis of animal movement has been integrated into a framework of four components: internal state, motion capacity, navigation capacity, and external factors (Nathan et al., 2008). We used this framework to enhance understanding of movement behavior in the 15 West Indian rock iguana (Cyclura) taxa and to inform conservation management. Our review found that adult female Cyclura large-scale movement is primarily driven by nesting and migrations. Nest site selection also influences hatchling dispersal, but few studies identify preferred habitats for nesting females. Anthropogenic impacts on nesting ecology are largely unexplored, especially in Cyclura carinata. We studied C. carinata nesting ecology …

Source Contributions To Nekton Diet In An Oligohaline Ecosystem, Keith Antoine Chenier

Theses and Dissertations

West Back Bay in Biloxi, Mississippi is an oligohaline estuary. Salt-tolerant submerged aquatic vegetation (SAV) and saltmarsh grasses are found ubiquitously throughout this estuary with Vallisneria americana and Juncus roemerianus being the dominant SAV and saltmarsh vegetation. No studies have directly evaluated the role of these vegetation species in the food web. Carbon and sulfur stable isotope analyses were used to identify primary source contributions to fishes Menidia beryllina, Fundulus grandis, and Lepomis macrochirus. Isotopic niche overlap was compared between fishes and basal carbon sources bimonthly from May 2021 through May 2022. Fishes had greater than 50% isotopic niche overlap …

Mississippi Mud: Race, Agriculture, And Disharmony In The Era Of Civil Rights, Kymara D. Sneed

Theses and Dissertations

Federal interference in the battle for states’ rights in Mississippi during the 1950s and 60s birthed a civil rights movement that made the Department of Agriculture its main opposition. Alongside state-sanctioned organizations like the Citizens’ Council and the Sovereignty Commission, the USDA used their resources to deter civil rights groups, black farmers, and black agents alike from protesting against segregationist policies. Mississippi Mud uses agriculture as a lens to illustrate how the USDA’s refusal to denounce Jim Crow, especially after the passage of the 1964 Civil Rights Act, led to black farmers and extension agents pursuing legal action against the …

Effects Of A Nontraditional Beef Cattle Finishing System On Performance, Carcass Quality, And Economics, Lakan D. Guelker

Theses and Dissertations

Crossbred beef heifers [Year 1, n = 12 initial body weight (BW) = 400.5 kg] and beef steers (Year 2, n = 24, initial body weight (BW) = 401.9 kg] were used to compare the effect of non-traditional, low-input finishing diets (CORN and SBH) to a traditional finishing diet (DIET) in a small-scale finishing system on animal performance, carcass characteristics, and economic impact. In Year 1, cattle were finished for 132d (n = 6) or 174d (n = 6) and in Year 2, cattle were finished for 154d (n = 8), 162d (n = 8), and 196d (n = 7) …

Windows Into Changing Landscapes: Bioarchaeological And Geophysical Analysis Of The Grenada Yellow Fever Cemetery, M. Kathryn Mckenna

Theses and Dissertations

This project focuses on the Yellow Fever Cemetery of Grenada, Mississippi through geophysical and biological methods. A ground penetrating radar survey was conducted to investigate the landscape and burial patterns in relation to the use of the cemetery throughout high periods of mortality such as a yellow fever epidemic. Additionally, biological methods were used in the analysis of an individual recovered as part of a salvage archaeology event from the cemetery. The multifaceted approach aims to uncover more about the cemetery, landscape, and community as it has changed over time with the influence of extreme events such as the yellow …