Medicine and Health Sciences Commons^™

Profound And Redundant Functions Of Arcuate Neurons In Obesity Development, Canjun Zhu, Zhiying Jiang, Yuanzhong Xu, Zhao-Lin Cai, Qingyan Jiang, Yong Xu, Mingshan Xue, Benjamin R Arenkiel, Qi Wu, Gang Shu, Qingchun Tong

Children’s Nutrition Research Center Staff Publications

The current obesity epidemic faces a lack of mechanistic insights. It is known that the acute activity changes of a growing number of brain neurons rapidly alter feeding behaviour; however, how these changes translate to obesity development and the fundamental mechanism underlying brain neurons in controlling body weight remain elusive. Here, we show that chronic activation of hypothalamic arcuate GABAergic (GABA

Paraventricular Hypothalamus Mediates Diurnal Rhythm Of Metabolism, Eun Ran Kim, Yuanzhong Xu, Ryan M Cassidy, Yungang Lu, Yongjie Yang, Jinbin Tian, De-Pei Li, Rachel Van Drunen, Aleix Ribas-Latre, Zhao-Lin Cai, Mingshan Xue, Benjamin R Arenkiel, Kristin Eckel-Mahan, Yong Xu, Qingchun Tong

Children’s Nutrition Research Center Staff Publications

Defective rhythmic metabolism is associated with high-fat high-caloric diet (HFD) feeding, ageing and obesity; however, the neural basis underlying HFD effects on diurnal metabolism remains elusive. Here we show that deletion of BMAL1, a core clock gene, in paraventricular hypothalamic (PVH) neurons reduces diurnal rhythmicity in metabolism, causes obesity and diminishes PVH neuron activation in response to fast-refeeding. Animal models mimicking deficiency in PVH neuron responsiveness, achieved through clamping PVH neuron activity at high or low levels, both show obesity and reduced diurnal rhythmicity in metabolism. Interestingly, the PVH exhibits BMAL1-controlled rhythmic expression of GABA-A receptor γ2 subunit, and dampening …

'It's Common Sense That An Individual Must Eat': Advocating For Food Justice With People With Psychiatric Disabilities Through Photovoice., Lara Carson Weinstein, Mariana Chilton, Renee Turchi, Ann C Klassen, Marianna Lanoue, Alexis Silvero, Leopoldo J Cabassa

Department of Family & Community Medicine Faculty Papers

BACKGROUND: People with SMI have often been excluded in advocacy efforts focused on physical health, health care and health and social policy.

OBJECTIVE: Following a Photovoice project focused on barriers to healthy eating and physical activity in urban neighbourhoods, participant-researchers were invited to present their insights in community advocacy settings. The purpose of this study was to explore the feasibility and participant-researchers' experience of these community advocacy activities.

DESIGN: We held four focus groups with the eight participant-researchers after each community advocacy activity to explore their experience with public speaking, presenting their experiences and advocating.

SETTING AND PARTICIPANTS: People with …

Disrupted Hypothalamic Crh Neuron Responsiveness Contributes To Diet-Induced Obesity, Canjun Zhu, Yuanzhong Xu, Zhiying Jiang, Jin Bin Tian, Ryan M Cassidy, Zhao-Lin Cai, Gang Shu, Yong Xu, Mingshan Xue, Benjamin R Arenkiel, Qingyan Jiang, Qingchun Tong

Children’s Nutrition Research Center Staff Publications

The current obesity epidemic mainly results from high-fat high-caloric diet (HFD) feeding and may also be contributed by chronic stress; however, the neural basis underlying stress-related diet-induced obesity remains unknown. Corticotropin-releasing hormone (CRH) neurons in the paraventricular hypothalamus (PVH), a known body weight-regulating region, represent one key group of stress-responsive neurons. Here, we found that HFD feeding blunted PVH CRH neuron response to nutritional challenges as well as stress stimuli and dexamethesone, which normally produce rapid activation and inhibition on these neurons, respectively. We generated mouse models with the activity of these neurons clamped at high or low levels, both …

Wellness Project Implementation Within Houston's Faith And Diabetes Initiative: A Mixed Methods Study, Rebecca Wells, Ellen D Breckenridge, Stephen H Linder

Faculty, Staff and Student Publications

BACKGROUND: Faith-based health promotion has shown promise for supporting healthy lifestyles, but has limited evidence of reaching scale or sustainability. In one recent such effort, volunteers from a diverse range of faith organizations were trained as peer educators to implement diabetes self-management education (DSME) classes within their communities. The purpose of this study was to identify factors associated with provision of these classes within six months of peer-educator training.

METHODS: This study used the Consolidated Framework for Implementation Research (CFIR) to identify patterns from interviews, observations, attendance records, and organizational background information. Two research team members thematically coded interview transcripts …

Effects Of Bariatric Surgery On Metabolic Insulin Resistance, Tricia Brown

Nursing Student Class Projects (Formerly MSN)

Diabetes and Obesity are major diseases that affect Americans today. This project looks at insulin resistance independent of weight loss in diabetic patients who have had undergone bariatric surgery. Bariatric surgery changes the structure of the stomach and the digestive process. A metabolic change has been noted in patients immediately after surgery. Studies have shown that bariatric surgery can cause a remission of diabetes. A change in insulin resistance is noted immediately after surgery. A specific pathologic process is still unclear, and more research is needed. This project explores different theories of metabolic changes in the human body after bariatric …

Obesity, Tiffany Fry

Nursing Student Class Projects (Formerly MSN)

Abstract

Obesity is a multifaceted and complex chronic disease ravaging the health of our nation. The Centers for Disease Control and Prevention reports reveal in 2017-2018 the prevalence of obesity in the United States was 42.4% (Centers for Disease Control and Prevention [CDC], 2020). Not only is obesity a concern in the United States, but also globally. According to the World Health Organization (WHO) (2016), obesity is defined as an excessive amount of adipose tissue that accumulates in one’s body and poses a significant risk to one’s health. The body mass index (BMI) (weight in kg/height in m²), …

Patterns Of Regional Cerebral Blood Flow As A Function Of Obesity In Adults., Daniel G Amen, Joseph Wu, Noble George, Andrew Newberg

Marcus Institute of Integrative Health Faculty Papers

BACKGROUND: While obesity has been shown to be a risk factor for Alzheimer's disease, the potential mechanisms underlying this risk may be clarified with better understanding of underlying physiology in obese persons.

OBJECTIVE: To identify patterns of cerebral perfusion abnormality in adults as a function of body mass index (BMI) defined weight categories, including overweight or obese status.

METHODS: A large psychiatric cohort of 35,442 brain scans across 17,721 adults (mean age 40.8±16.2 years, range 18-94 years) were imaged with SPECT during baseline and concentration scans, the latter done after each participant completed the Connors Continuous Performance Test II. ANOVA …

Association Of Circulatory Kisspeptin Levels And Hormonal Interplay With Male Infertility: A Cross-Sectional Study In Karachi, Pakistan, Rehana Rehman, Kaleem Ahmed, Nida Zahid, Faiza Alam, Syeda Sadia Fatima

Department of Biological & Biomedical Sciences

Objectives: To determine the impact of Kisspeptin on male reproductive axis in a selected urban population.
Methods: The cross-sectional study was conducted at the Sindh Institute of Reproductive Medicine in collaboration with Aga Khan University, Karachi, from July, 2017, to February, 2018, and comprised infertile males with abnormal sperm parameters who were placed in Group A and fertile males with normal sperm parameters placed in Group B. Serum samples were estimated for Kisspeptin, follicle stimulating hormone, luteinizing hormone, testosterone and sex hormone-binding globulin using enzyme-linked immunosorbent assay. Data was analysed using SPSS 22.
Results: Of the 313 male subjects, 178(57%) …

Evaluating Public Posting, Goal Setting, And Rewards To Increase Physical Activity In Children, Bryon G. Miller

USF Tampa Graduate Theses and Dissertations

In Experiments 1 and 2 we evaluated a pedometer-based intervention consisting of public posting between two teams of students, with additional self-monitoring, goal setting, and reinforcement components, to increase physical activity during school recess. In the absence of self-monitoring, performance feedback alone did not increase physical activity levels above those observed during baseline. Additionally, higher levels of physical activity were observed when goal-setting was introduced, with the highest levels of activity observed when raffle tickets could be earned for exceeding a specified step-total goal. In Experiment 3 we removed the team component and evaluated similar intervention components across an entire …

Factors Affecting Metformin And Clomiphene’S Reproductive Efficacy In Pcos Women, Rita J. Poushuju, Ahmed I. El-Mallah, Lama T. Soubra, Lina N. Jarrah

BAU Journal - Health and Wellbeing

Polycystic Ovarian Syndrome (PCOS) is a heterogeneous multifactorial disorder in which the ovarian dysfunction is the main cause of an ovulatory infertility. Metformin and Clomiphene Citrate (CC) are two effective drugs to induce ovulation in these patients. The study aimed to ascertain the effect of obesity, serum insulin and free testosterone levels on fertility success with metformin and CC as first line approaches in PCOS. This clinical study was a retrospective multicenter cohort study conducted in nine gynecology and endocrinology clinics. It included (61) PCOS women, aged (18-32) years, having desire to conceive, and free from the study medications for …

Eating For Two Without Eating Too Much: Optimizing Gestational Weight Gain, Sandra Pope

Doctor of Nursing Practice Final Manuscripts

This evidence-based pilot project was implemented to optimize gestational weight gain (GWG) among women enrolled for prenatal care at a private practice. Evidence from meta-analyses and large studies show: 1) an association between excess GWG and increased risk of fetal macrosomia and increased cesarean delivery; 2) 66% of women do not know their healthy GWG target; 3) a 20% reduction in excess GWG in women receiving diet or exercise interventions or both. In addition, visual plotting of weight gain has helped overweight adults reduce and maintain weight loss over a one-year period. Nutrition assessment using a validated nutritional screening questionnaire …

Vascular Risk Reduction In Obesity Through Reduced Granulocyte Burden And Improved Angiogenic Monocyte Content Following Bariatric Surgery., David A Hess, Justin Z Trac, Stephen A Glazer, Daniella C Terenzi, Adrian Quan, Hwee Teoh, Mohammed Al-Omran, Deepak L Bhatt, C David Mazer, Ori D Rotstein, Subodh Verma

Physiology and Pharmacology Publications

Bariatric surgery, in addition to the benefit of sustained weight loss, can also reduce cardiometabolic risk and mortality. Lifelong vessel maintenance is integral to the prevention of cardiovascular disease. Using aldehyde dehydrogenase activity, an intracellular detoxifying enzyme present at high levels within pro-vascular progenitor cells, we observed an association between chronic obesity and "regenerative cell exhaustion" (RCE), a pathology whereby chronic assault on circulating regenerative cell types can result in adverse inflammation and diminished vessel repair. We also describe that, at 3 months following bariatric surgery, systemic inflammatory burden was reduced and pro-angiogenic macrophage precursor content was improved in subjects …

Pillars Of The Nutrition Transition: The Global Impacts Of Ultra-Processed Foods And Beverages On Overweight And Obesity And National Nutrient Supplies, Jacob Eaton

Arts & Sciences Graduate Student Theses and Dissertations

Malnutrition in some form impacts nearly one-third of the global population. Across the world, countries are undergoing the Үutrition transitionӠfrom traditional and largely unprocessed diets to Western-style, energy-dense diets. At the same time, rates of overweight and obesity and diet-related chronic diseases continue to climb. Ultra-processed foods (UPF), sugar-sweetened beverages (SSB), and vegetable oils are three of the foods driving the nutrition transition. This dissertation calculates changes in the global food supply between 1961 and 2013 and quantifies the influence of UPF and SSB (as measured through sales) on national nutrient supplies between 2005 and 2013 and trends in adult …

Baseline Health Assessment Of A Rural Delta Community, Sydney Mitchell

Honors Theses

The Lower Mississippi Delta is characterized by poverty, chronic health issues, health disparities, and food insecurity. The rural Delta communities are primarily African American, experiencing disproportionately higher rates of poverty, job loss, and chronic health problems. Historically, chronic health issues have persisted in these areas over time, including obesity, hypertension, and diabetes, which have only seemed to increase in this region. The food environment in this rural region tends to assist in the creation of the largely obesogenic population which, in turn, contributes to the increased prevalence of diabetes and hypertension and a lower quality of life. Many residents in …

Exploring The Relationship Between Dietary Self-Monitoring With A Mobile App And Weight Change, Jason Payne

Electronic Theses and Dissertations

Background: Approximately 70% of the adult population in the United States has overweight or obesity and increased risk for developing chronic diseases. Dietary self-monitoring adherence using a paper diary is associated with weight loss; however, few studies have examined this association with dietary self-monitoring apps. Objectives: 1) explore if an association exists between app-based dietary self-monitoring and weight change among adults with overweight or obesity and 2) explore the relationships between the frequency, consistency, and completeness of self-monitoring and weight change. Methods: Participants self-monitored dietary intake for 8 weeks using the app Calorie Counter by FatSecret. Participants were assigned …

Compensatory Behaviors During A 12-Week Vigorous Interval Intervention In Post-Bariatric Men And Women, Kristen Byrne

Masters Theses, 2020-current

Strong links have been recognized between sedentary time, higher BMI, and waist circumference among post-operative bariatric surgery patients. The time-efficient aspects of the High Intensity Interval Training show a significant influence in creating a habitual strategic exercise for fighting obesity and controlling compensatory components. Ten post-operative bariatric participants (9 females, 1 male) with BMI of 33.65 ± 2.90 kg/m², undergoing a 12-week Vigorous Intensity Interval Training (VIIT) program, were assessed for the compensatory mechanisms of sedentary behavior and caloric intake. Participants were evaluated through 4-day food intake records and ActivPal accelerometers, assessed using Nutrition Data System for Research …

Implementing A Health Promotion Physical Activity Program For Middle School Youth In A Rural, Faith-Based Organization, Karmin Maher-Hasse

Doctor of Nursing Practice Projects

Problem: Childhood obesity is more prevalent in rural areas, and these areas have fewer resources to address it. Geographic distance to available resources, health care provider shortages, parental obesity, and poverty contribute to higher prevalence of obesity in rural children compared to urban children.

Rationale: Obesity prevention and treatment often requires long-term healthy lifestyle behavior changes including nutrition counseling and physical activity (PA). It is likely an obese pre-adolescent will have obesity as an adult, and the likelihood increases if obesity continues into adolescence. Pre-adolescence provides a window of opportunity to influence healthier PA habits to prevent overweight (OW) and …

A Multicomponent Tailored Intervention Program Protocol For Weight Loss In An Underserved Adult Patient Population With Obesity, Rita R. Arnold

Evidence-Based Practice Project Reports

Obesity is a multifactorial, individualized, chronic disease that increases known risk factors for significant comorbidities and mortality. The primary purpose of this Evidence-Based practice project was to improve indicators of obesity (weight, BMI) among patients served by a free medical clinic, using a tailored multicomponent intervention. The secondary purpose was to determine if the weight loss intervention was associated with a decrease in blood pressure and depression symptoms. The intervention was guided by the Health Promotion Model by Nola Pender. The Johns Hopkins Nursing Evidence Based Practice Model (JHNEBP) guided implementation of the project. A comprehensive literature review was completed …

A Multifactorial Intervention To Reduce Weight Bias In Healthcare Providers, Rose M. Flinchum

Evidence-Based Practice Project Reports

No abstract provided.

Provider-Led Intervention For Overweight Or Obese African American Women Ages 18-65 With A Bmi 25 Kg/ M₂, Tonya A. Harvey

Evidence-Based Practice Project Reports

Overweight and obese African American women tend to suffer most from the impacts of diseases, health disparities, disabilities, and decreased qualities of life (Sutton et al., 2016). Most weight loss programs are not culturally specific, despite the benefits of dietary changes and increased physical activity for all groups. The purpose of this EBP project was to implement a provider-led program including lifestyle, dietary, and activity components to decrease weight, BMI, waist circumference and blood pressure in African American women. The Iowa Model of Evidence-Based Practice to promote quality care was used to guide the EBP project, aimed to address obesity …

The Relationship Between Glucose Levels And Physical Activity, Rebecca Eberle

Health, Human Performance and Recreation Undergraduate Honors Theses

Abstract: Background/Introduction: Elevated glucose levels can increase the risk of diseases, such as metabolic syndrome and Type 2 Diabetes. Thus, knowing glucose levels is important to indicate the likelihood of future health complications. Unfortunately, many young adults do not know their glucose levels. Purpose: The purpose of this research study was to complete a cross- sectional study and determine associations between fasting glucose with physical activity, and fitness. I hypothesized more physical activity, and higher fitness, will result in a lower, fasting glucose level. Methodology: This study examined 26 participants aged 18-25. The participants completed an 8-hour fasted glucose measurement, …

The Effects Of A Nutritional Intervention On Healthy Eating Habits And Body Mass Index, Kelley Eshenaur

Evidence-Based Practice Project Reports

In the US, overweight and obesity are growing concerns, as both can have life altering consequences if not prevented or treated. Since 2000, there has been nearly a 10% increase of adults who are obese, from 30.5% (85.8 million) to 39.8% (93.9 million) in 2016 (CDC, 2017). These conditions are preventable with early intervention and motivation. Obesity statistics are especially of interest during the transition to young adulthood. The purpose of this project was to improve student outcomes by identifying barriers, effective strategies, and healthy choices that would ultimately impact weight, increasing healthy food choices, and decreasing overall BMI in …

The Β3-Adrenergic Receptor Agonist Mirabegron Improves Glucose Homeostasis In Obese Humans, Brian S. Finlin, Hasiyet Memetimin, Beibei Zhu, Amy L. Confides, Hemendra J. Vekaria, Riham H. El Khouli, Zachary R. Johnson, Philip M. Westgate, Jianzhong Chen, Andrew J. Morris, Patrick G. Sullivan, Esther E. Dupont-Versteegden, Philip A. Kern

Internal Medicine Faculty Publications

BACKGROUND. Beige adipose tissue is associated with improved glucose homeostasis in mice. Adipose tissue contains β3-adrenergic receptors (β3-ARs), and this study was intended to determine whether the treatment of obese, insulin-resistant humans with the β3-AR agonist mirabegron, which stimulates beige adipose formation in subcutaneous white adipose tissue (SC WAT), would induce other beneficial changes in fat and muscle and improve metabolic homeostasis.

METHODS. Before and after β3-AR agonist treatment, oral glucose tolerance tests and euglycemic clamps were performed, and histochemical analysis and gene expression profiling were performed on fat and muscle biopsies. PET-CT scans quantified brown adipose tissue volume and …

Increasing Accessibility To Key Social Determinants Of Health In Monterey County, Tabitha Vargas

Capstone Projects and Master's Theses

Monterey County Health Department’s Planning, Evaluation, and Policy Unit provides agency-wide support in promoting health equity. Obesity and diabetes rates in Monterey County are too high and there needs to be an increase of accessible data, which may help increase targeted prevention services. A health brief was developed for the purpose of increasing access to county-wide obesity and diabetes data and increasing knowledge of the role of how social determinants of health may affect health outcomes. A survey was conducted to measure the effectiveness of the health brief with results demonstrating that 100% of respondents agreed that the brief was …

Association Of Perfluorinated Chemicals With Endocrino-Carcinogenetic, Obesogenic And Metabolic Health And With Markers Of Chronic Inflammation And Oxidative Stress, Ogbebor Enaholo Omoike

Electronic Theses and Dissertations

First, this study examined the association of perfluorinated chemicals with 1) cardio-metabolic health outcomes and 2) the association of phthalates with cardiometabolic health outcomes, and 3) cardio-metabolic health outcomes while assessing the possibility of additive interactions between perfluorinated chemicals (PFCs) and phthalates. Second, association with markers of chronic inflammation and oxidative stress were explored. Finally, this study examined the association of these chemicals with estrogenic cancers- Breast cancer, prostate cancer, uterine cancer and ovarian cancer.

Using data from the National Health and Nutrition Examination Survey (NHANES), logistic regression models were used to investigate the relationship between PFCs and the cardio-metabolic …

Hypothalamic Circuits Mediating Consumption And Anxiety, Ryan Cassidy

Dissertations and Theses (Open Access)

From 1960-2016, U.S. obesity prevalence increased 13-40% and diabetes increased from 3-15%. There is an epidemic of metabesity, the aggregate metabolic disorders produced by chronic overeating. Drugs for metabesity were developed in the 1930s with limited effectiveness; agents today rely on the same principles and are similarly ineffective. Particularly surprising has been the failure of satiety enhancers; this indicates it may not be that physiologic hunger drives chronic overeating. Although hunger and satiety affect traditional reward circuitry (Cassidy & Tong 2017), evidence for the primacy of this effect is mixed. Being hungry reduces anxiety-like behavior in mice; whether the …

Health And Academic Achievement In College And University Students, Amber Beane

Electronic Theses and Dissertations

The purpose of this non-experimental quantitative correlational study was to investigate the relationship between academic achievement and health in a national sample of college students using quantitative data analysis. Specifically, the researcher analyzed the relationship between three health-promoting behaviors (physical activity, strength training, and fruit and vegetable consumption), three negative health behaviors (cigarette, e-cigarette, and opioid use) and obesity with GPA.

Cross-sectional data on student health collected from the American College Health Association’s National College Health Assessment II (ACHA-NCHA-II) and completed by 426,650 college students from 650 U.S. colleges during the semesters between 2015 and 2019 formed the foundation for …

Examination Of Perceptions Of Weight Loss And Weight Loss Methods, Andrew Seiber

Electronic Theses and Dissertations

The purpose of this study was to examine individuals’ perceptions of weight loss and weight loss methods. Respondents were employees and customers attending health/wellness events at local supermarkets in June, July, and August 2019. Participants completed a survey to assess their understanding and perceptions of weight loss and methods used to achieve weight loss. The majority of participants were white females, 60 years or older with a college degree and a Body Mass Index (BMI) classified as overweight or obese. Data revealed most participants had a variety of misconceptions relating to weight loss and weight loss methods that were obscure …

From Fighting Wasting To Shedding Excess: An Explanatory Sequential Mixed-Method Study Of Obesity Among People Living With Hiv In Nigeria, John Olajide Olawepo

UNLV Theses, Dissertations, Professional Papers, and Capstones

The human immunodeficiency virus (HIV) infection is a global epidemic, with initial high mortality rates since the first diagnosis over three and a half decades ago. However, the use of antiretroviral therapy (ART) has led to longer, healthier lives for many people living with HIV (PLHIV). Accordingly, aging comes with associated co-morbidities like obesity, diabetes, and cardiovascular diseases. The purpose of this mixed-methods study was to further understand the emergent phenomenon of obesity and overweight among PLHIV who are on treatment with ART, using Nigeria as a case study.

An explanatory sequential mixed-method design was used that involved the analysis …