Medicine and Health Sciences Commons^™

Determining The Effects Of Maternal Adiposity On Preterm Neonatal Microbiome And Short Chain Fatty Acid Profiles, Dalton James, William A. Clark Phd, Kristy L. Thomas

Undergraduate Honors Theses

The gut microbiota and its metabolites have vast impacts on the human digestive system, immune system, and health outcomes. Short chain volatile fatty acids (SCVFAs) present in feces can be representative of the interactions of the microbiota present in the gut. Low microbiota diversity in the human gut is highly associated with obesity and adverse health outcomes. Furthermore, the maternal microbiome has a direct impact on neonatal microbiota through various pathways such as environment, skin flora, breast milk composition, and vaginal secretions. This study is aimed to further understand the associations between various factors (maternal adiposity, gestational time, length of …

The Fecal Fermentation Profile Of Infants With Different Feeding Modalities, Willow Lewis, Michelle E. Johnson, William A. Clark, Amy Wahlquist

Undergraduate Honors Theses

Introduction/Background

Research indicates nutrition and environment in the first year of a child's life are crucial in their development and growth and can contribute to lower chances of developing obesity and other health concerns. Key factors that can determine these outcomes include the bacteria and resulting short chain fatty acids (SCFAs) present in the gut. This composition may be affected by feeding modality (formula feeding vs breastfeeding), exposure to the mother’s microbiota, weight status of the child, and type of delivery. This research aims to identify the impact of infant feeding modality on toddlers' fecal fermentation profile, and if there …

Comparison Of Short Chain Volatile Fatty Acids In The Breastmilk Of Normal And Overweight/Obese Mothers, Ellen Gaskill, W Andrew Clark, Kristy L. Thomas, Amy Wahlquist, Michelle E. Johnson

Undergraduate Honors Theses

INTRODUCTION: Health professionals emphasize the importance of breastfeeding in the development of children up to 6-months of age. It is known that short chain volatile fatty acids (SCVFAs) are a byproduct of nutrient fermentation by gut microbiome. These SCVFAs interact with the gut/brain axis and are known to influence infant development. Therefore, a reflection of maternal gut microbiome could likely be found in breastmilk (BM) due to diffusion of SCVFAs across the gut wall into the blood. Previous research in our laboratory has shown differences in the SCVFA fecal fermentation profile between individuals with normal (N) versus overweight/obese (OWOB) body …

Leptin Activation Of Metabolically-Related Hypothalamic Neurons, Kailee Hixon

Undergraduate Honors Theses

Obesity is often associated with multiple other clinical conditions, including hypertension and cardiovascular disease. Currently, more than one-third of the world’s population is classified as obese. Leptin is a neuropeptide that is released from adipose cells and is responsible for reducing appetite and increasing metabolism. Leptin also has a role in the activation of cardiovascular and metabolic pre-sympathetic neurons and has been reported to increase blood pressure and heart rate. Thus, understanding the activation of the autonomic nervous system by leptin has implications in the development and safety of drugs to avoid activation of cardiovascular pre-sympathetic neurons. This is important …

Portion Size Selection In Relation To Hemoglobin A1cs, Brian L. Dixon

Undergraduate Honors Theses

Obesity has been recognized as an increasing issue within our country. Obesity contributes to many health related issues, including type 2 diabetes mellitus. Portion size is a factor that has generated clinical research interest. The aim of this study was to determine if there was a relationship between management of diabetes measured by hemoglobin A1c and portion size selection for type 2 diabetics. In this study, subjects selected portion sizes of four different foods. Data were compared to recent A1c levels. Due to the small sample size, nonparametric statistical analysis was used. The relationship of grain portion weight selection and …