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Characterization Of Ghrelin O-Acyltransferase Active Site, Leslie Patton May 2015

Characterization Of Ghrelin O-Acyltransferase Active Site, Leslie Patton

Renée Crown University Honors Thesis Projects - All

Ghrelin, first discovered in 1999, is a 28-amino acid peptide hormone involved in the regulation of appetite, insulin secretion and sensitivity, and many neurological effects such as learning, memory, and depression.1-6 Ghrelin has been identified to have a unique posttranslational octanoylation carried out by the enzyme ghrelin O-acyltransferase (GOAT). This distinctive modification is a point of interest in studying GOAT whereby blocking the acylation of the ghrelin could potentially halt the activity of the peptide hormone and provide a means of treating obesity, diabetes, and other diseases affected by ghrelin levels. The duration of my project involved working …


The Impact Of Shift Work On Diabetes Self-Management Activities, Daniel Navarro May 2015

The Impact Of Shift Work On Diabetes Self-Management Activities, Daniel Navarro

UNLV Theses, Dissertations, Professional Papers, and Capstones

In the United States 26 million people are affected by diabetes, which can result in microvascular and macrovascular complications. As a consequence, once a person is diagnosed with diabetes, aggressive clinical management is imperative to minimize poor glycemic control’s devastating outcomes. However, for some patients reaching optimum blood glucose levels is challenging due to the complexity of diabetes’ care. In order for patients with diabetes to achieve good blood glucose control, they must engage in self-care activities that include routine blood glucose checks, dietary control, physical activity, and routine medical provider visits, simultaneously with their medication regimen. Diabetes associated self-care …


Efficacy Of Behavioral Interventions In African-Americans With Type Ii Diabetes: A Comparative Effectiveness Analysis, Tangela Nicole Hales May 2015

Efficacy Of Behavioral Interventions In African-Americans With Type Ii Diabetes: A Comparative Effectiveness Analysis, Tangela Nicole Hales

Dissertations

Context: The efficiency and effectiveness of the healthcare system are prime foci for nursing research.

Objective:The purpose of this study was to review and critically appraise the current state of the evidence in the treatment of African American adults with type II diabetes. To address this objective, a systematic review was undertaken that investigated the comparative effectiveness of behavioral interventions in improving glycemic control.

Methods: Robust methodological approaches to comparative effectiveness research (CER) serve to improve the transparency, consistency, and scientific rigor of the research. The methods for this systematic review of literature followed those recommended in the Agency …


Hypohydration And Glucose Regulation In Adult Males With Type Ii Diabetes Mellitus, Weldon Murry May 2015

Hypohydration And Glucose Regulation In Adult Males With Type Ii Diabetes Mellitus, Weldon Murry

Biological Sciences Undergraduate Honors Theses

Daily total water intake (TWI) has been linked to a number of chronic diseases, such as urolithiasis and chronic kidney disease. Additionally, epidemiological and animal model data have tied low TWI to impaired blood glucose regulation. However, the effect of a fluid intake intervention on blood glucose regulation has not yet been observed in humans. PURPOSE: Thus, the purpose of the current investigation is to determine if the response to an oral glucose tolerance test (OGTT) is altered by manipulation of hydration status in people with diabetes. METHODS: Nine men (53±9 y, 94.9± 23.8 kg, 1.75± 0.11 m, 30.0± 4.3 …


Impact Of The Heart Watch Program On Patients At Risk Of Developing Metabolic Syndrome, Prediabetes Or Cardiovascular Disease, Jennifer T. Fink, Kathryn K. Havens, Julia A. Schumacher, Renee E. Walker, George L. Morris Iii, David A. Nelson, Maharaj Singh, Ron A. Cisler Apr 2015

Impact Of The Heart Watch Program On Patients At Risk Of Developing Metabolic Syndrome, Prediabetes Or Cardiovascular Disease, Jennifer T. Fink, Kathryn K. Havens, Julia A. Schumacher, Renee E. Walker, George L. Morris Iii, David A. Nelson, Maharaj Singh, Ron A. Cisler

Journal of Patient-Centered Research and Reviews

Purpose

Metabolic syndrome is a set of metabolic risk factors associated with increased risk of developing cardiovascular disease and type 2 diabetes mellitus. We retrospectively evaluated the effectiveness of a lifestyle modification program (Heart WATCH) geared toward reducing development of chronic disease in women deemed at risk for metabolic syndrome, prediabetes and/or cardiovascular disease.

Methods

Our institution’s Heart WATCH program consists of screening sessions with a multidisciplinary team (physician/nurse, nutritionist and psychologist), a minimum of three visits with a nurse practitioner and weekly follow-up phone calls for a 14-week period. Sociodemographic variables were obtained at initial visit. Biometric testing indices …


Considering Shared Power And Responsibility: Diabetic Patients’ Experience With The Pcmh Care Model, Olena Mazurenko Md, Phd, Sheila Bock Phd, Catherine Prato, Margarita Bondarenko Apr 2015

Considering Shared Power And Responsibility: Diabetic Patients’ Experience With The Pcmh Care Model, Olena Mazurenko Md, Phd, Sheila Bock Phd, Catherine Prato, Margarita Bondarenko

Patient Experience Journal

The patient-centered medical home (PCMH), an innovative primary care model that fosters a stronger, more personal patient-doctor relationship than traditional health care models, should be particularly well suited for the treatment of chronic conditions such as diabetes that require ongoing management by both patients and providers. Despite growing research on the effectiveness of PCMHs in diabetes care, relatively little attention has been given to diabetic patients’ experiences. This qualitative study examines diabetic patients’ experiences at one PCMH setting, using in-depth interviews to understand patients’ perspectives of the shared power and responsibility between patient and provider in their diabetes care. Our …


Determining The Need For Diabetic Risk Assessment In An Academic Dental Clinic, Nancy Wong Apr 2015

Determining The Need For Diabetic Risk Assessment In An Academic Dental Clinic, Nancy Wong

Master's Theses

The purpose of this study was to determine whether there was a need to incorporate a diabetic risk assessment in an academic dental clinic. An analysis of existing patient records and a survey administered to new patients seeking care at the University of Connecticut Health Center dental clinics were utilized to determine: a) what was the prevalence of diabetic patients; b) how many patients were at increased risk for developing Type 2 diabetes; and c) whether their oral health knowledge relating to diabetes varied by their diabetic status. The survey was administered over a four-month time period, in which 200 …


Measuring Primary Care Engagement In Emergency Department Patients In A Medically Underserved Area, Bianca Michelle Jackson Apr 2015

Measuring Primary Care Engagement In Emergency Department Patients In A Medically Underserved Area, Bianca Michelle Jackson

Electronic Theses and Dissertations Archive

The purpose of this study was to evaluate primary care engagement in an emergency department population of adults with diabetes and multiple chronic conditions (MCC) within the medically underserved Whitehaven community of Memphis, TN. Using a self-report survey, primary care characteristics of the population and the validity of the local hospital registrar's assessment of primary care engagement were evaluated using descriptive statistics, independent sample t-tests, one-way ANOVA, and bivariate correlations. 83% of patients reported having a primary care provider. There was no effect of age, gender, or race on continuity of care or chronic illness care; however, insurance status did …


The Effects Of Latent Stage Diabetic Education And Tele-Health Reinforcement On The Knowledge Of Low-Income Diabetic Patients, Hannah M. Chicowlas Apr 2015

The Effects Of Latent Stage Diabetic Education And Tele-Health Reinforcement On The Knowledge Of Low-Income Diabetic Patients, Hannah M. Chicowlas

Honors College Theses

Diabetes is a chronic disease that affects millions globally. Poverty and obesity are factors that affect the development and progression of this disease. Although education has been identified as a factor affecting treatment adherence, on-going education for diabetes typically occurs in the early stages. This pilot study consisted of a quantitative, comparative study utilizing tele-health as the primary form of educational reinforcement for latent stage, low-income diabetics. Six clients agreed to participate. It focused on participants from a local clinic in Georgia. All participants live at or below 200% of the federal poverty guidelines. An initial survey was followed by …


Promoting Healthy Behavior Change: Communication Interventions To Lower Risk Of Type Ii Diabetes In Men And Women Under 30, Jessica A. Bruns Apr 2015

Promoting Healthy Behavior Change: Communication Interventions To Lower Risk Of Type Ii Diabetes In Men And Women Under 30, Jessica A. Bruns

Masters Essays

Diabetes is a chronic disease in which one’s blood glucose, more commonly known as sugar, rises to above average levels (American Diabetes Association [ADA], 2015). According to the 2014 National Diabetes Statistics Report, in 2012, 29.1 million Americans age 20 and older have diabetes, up from 25.8 million in 2010, with 90-95% of those diagnosed cases being Type II diabetes (ADA, 2014). As of 2010, diabetes remains the seventh leading cause of death in America (ADA, 2014). Several studies have found regular physical activity and maintaining a normal body mass index (BMI) can significantly reduce one’s risk of developing Type …


Epid 7131 - Epidemiology Of Chronic Disease, Jian Zhang Apr 2015

Epid 7131 - Epidemiology Of Chronic Disease, Jian Zhang

College of Public Health: Faculty Syllabi (2014-2021)

This course is designed to introduce the student to the ever-expanding area of chronic disease epidemiology. Students will be introduced to the current status of chronic disease and control programs, methods used in chronic disease surveillance, intervention methods, and modifiable risk factors. Some of the major chronic diseases such as cancer, cardiovascular disease, chronic lung disease, diabetes and arthritis will be discussed in detail.


Shining The Spotlight On Diabetes, Rodney Richmond Mar 2015

Shining The Spotlight On Diabetes, Rodney Richmond

Faculty Research ​and Publications

No abstract provided.


Pre-Prandial Vinegar Ingestion Improves Two-Hour Glucose Control In Older, Type Ii Diabetics More Than Post-Prandial Walking, Sarah J. Taylor, Matthew J. Garver, Anna E. Ciufo, Taylor G. Flowers, Chase M. Harbach, Austin A. Ray, Cory M. Scheadler Feb 2015

Pre-Prandial Vinegar Ingestion Improves Two-Hour Glucose Control In Older, Type Ii Diabetics More Than Post-Prandial Walking, Sarah J. Taylor, Matthew J. Garver, Anna E. Ciufo, Taylor G. Flowers, Chase M. Harbach, Austin A. Ray, Cory M. Scheadler

International Journal of Exercise Science: Conference Proceedings

Background: Exercise engagement benefits diabetic patients through an insulin-like effect on muscle. Literature indicates that vinegar consumption may lower blood glucose levels. It is not currently clarified whether a relative amount of vinegar ingestion or a walking bout is more effective at controlling glucose in older, Type II diabetics during the acute phase following a meal. Purpose: The aim was to directly compare the impact of preferred-pace walking (15 min, postprandial) versus ingestion of a relative quantity of vinegar (0.3 g/kg) on two-hour glucose control. Methods: The two arms of the trial were completed in a randomized, …


C.Elegans As A Diabetes & Ischemia Model: Identification Of Genetic And Cellular Changes That Modulate The Survival Of Hyperglycemia And Oxygen-Deprivation, Anastacia M. Garcia, Mary L. Ladage, Brian K. Mcfarlin, Rajeev K. Azad, Pamela A. Padilla Feb 2015

C.Elegans As A Diabetes & Ischemia Model: Identification Of Genetic And Cellular Changes That Modulate The Survival Of Hyperglycemia And Oxygen-Deprivation, Anastacia M. Garcia, Mary L. Ladage, Brian K. Mcfarlin, Rajeev K. Azad, Pamela A. Padilla

International Journal of Exercise Science: Conference Proceedings

Diet represents an exogenous influence that often yields colossal effects on an individual’s phenotype, physiology, long-term health and disease risk. The overconsumption of dietary sugars for example, has contributed to significant increases in obesity and type 2 diabetes, health issues that are costly both in terms of dollars and human life. Additionally, individuals with these conditions have compromised oxygen delivery and thus, an increased vulnerability to other oxygen-deprivation related disease states, including cardiovascular disease, ischemic strokes, vascular and coronary diseases and myocardial infarction. While human and other mammalian studies have shown that individuals with type 2 diabetes have a worse …


Mechanisms Underlying Weight Loss And Metabolic Improvements In Rodent Models Of Bariatric Surgery, Deanna M. Arble, Darleen A. Sandoval, Randy J. Seeley Feb 2015

Mechanisms Underlying Weight Loss And Metabolic Improvements In Rodent Models Of Bariatric Surgery, Deanna M. Arble, Darleen A. Sandoval, Randy J. Seeley

Biological Sciences Faculty Research and Publications

Obesity is a growing health risk with few successful treatment options and fewer still that target both obesity and obesity-associated comorbidities. Despite ongoing scientific efforts, the most effective treatment option to date was not developed from basic research but by surgeons observing outcomes in the clinic. Bariatric surgery is the most successful treatment for significant weight loss, resolution of type 2 diabetes and the prevention of future weight gain. Recent work with animal models has shed considerable light on the molecular underpinnings of the potent effects of these ‘metabolic’ surgical procedures. Here we review data from animal models and how …


Supporting Practices To Adopt Registry-Based Care (Sparc): Protocol For A Randomized Controlled Trial, Rebecca S. Etz, Rosalind E. Keith, Anna M. Maternick, Karen L. Stein, Roy T. Sabo, Melissa S. Hayes, Purvi Sevak, John Holland, Jesse C. Crosson Jan 2015

Supporting Practices To Adopt Registry-Based Care (Sparc): Protocol For A Randomized Controlled Trial, Rebecca S. Etz, Rosalind E. Keith, Anna M. Maternick, Karen L. Stein, Roy T. Sabo, Melissa S. Hayes, Purvi Sevak, John Holland, Jesse C. Crosson

Family Medicine and Population Health Publications

Background

Diabetes is predicted to increase in incidence by 42% from 1995 to 2025. Although most adults with diabetes seek care from primary care practices, adherence to treatment guidelines in these settings is not optimal. Many practices lack the infrastructure to monitor patient adherence to recommended treatment and are slow to implement changes critical for effective management of patients with chronic conditions. Supporting Practices to Adopt Registry-Based Care (SPARC) will evaluate effectiveness and sustainability of a low-cost intervention designed to support work process change in primary care practices and enhance focus on population-based care through implementation of a diabetes registry. …


Awareness Of Diabetes Risk Associated With Individuals 18 And Older, Rebecca Jane Boone Jan 2015

Awareness Of Diabetes Risk Associated With Individuals 18 And Older, Rebecca Jane Boone

Walden Dissertations and Doctoral Studies

The risk of developing Type 2 diabetes is increasing at epidemic proportions, and is 12-17% higher in Marion County Florida than it is across the state, based on Florida Department of Health statistics. The purpose of this DNP project was to determine if awareness of individual risk of developing Type 2 diabetes through a questionnaire would result in high-risk participants agreeing to attend a diabetes prevention program (DPP) at a local medical clinic. The health belief model and Rosswurm and Larrabee's model for change were used as frameworks. The review of the literature showed that prevention programs were highly effective …


Diabetes Self-Management Education Program, Lesa Faye Williams Jan 2015

Diabetes Self-Management Education Program, Lesa Faye Williams

Walden Dissertations and Doctoral Studies

Diabetes is a devastating disease in American. The disease can cause chronic health comorbidities, and untreated diabetes has negative consequences for individuals and on our nation's economy. Newly diagnosed diabetics often have a lack of knowledge about the disease process. The purpose of this project was to design and implement a diabetes educational program to enhance participants' knowledge about diabetes management and self-care using the Health Belief Model. Diabetes Self-Management Education (DSME) is critical in improving patient outcomes and the prevention of diabetes related complications. Participation in a standardized diabetic educational intervention will improve patient knowledge, as measured by a …


Diabetes Education Tailored Towards English Speaking Caribbean Immigrants, Joanna A. Dunk Jan 2015

Diabetes Education Tailored Towards English Speaking Caribbean Immigrants, Joanna A. Dunk

Walden Dissertations and Doctoral Studies

The prevalence of diabetes is increasing among persons of Caribbean ancestry in the United States, yet there is little research on the differences in the health and nutrition patterns of diabetics from this population. This study created a culturally-sensitive diabetes education program for the staff of an internal medicine practice that treated patients from the English-speaking Caribbean. The project was guided by the health belief model, as well as Leininger's theory of transcultural nursing. Methodology of project had a quality improvement focus. The comprehensive curriculum included diabetes medications, physical activity, culturally-tailored medical nutrition therapy, complications, self-care behavior, problem solving, and …


Predictors Of Knowledge Of Stroke And Intent To Call 911 Among African Americans, Hyacinth Idu Hyacinth Jan 2015

Predictors Of Knowledge Of Stroke And Intent To Call 911 Among African Americans, Hyacinth Idu Hyacinth

Walden Dissertations and Doctoral Studies

Stroke is associated with significant health disparity and predominantly affects the elderly. Stroke outcome is significantly improved if an individual is able to get "clot-bursting" medication. A significant predictor of an on-time arrival to the emergency room for treatment in the event of a stroke is the ability to accurately recognize stroke signs and symptoms. The purpose of this study was to determine the factors (demographic, socioeconomic, and educational) that predict the knowledge of stroke signs/symptoms and intent to call 911 in the event of a stroke. The study was grounded in the social ecological theoretical model and analyzed archived …


Negotiating Diabetes: Professional Diabetes Care Work In The U.S., Melissa Marie Gesbeck Jan 2015

Negotiating Diabetes: Professional Diabetes Care Work In The U.S., Melissa Marie Gesbeck

Dissertations

The rising incidence of diabetes mellitus (types 1 and 2) transcends national borders, creating a global pandemic. The U.S. leads the world in diabetes prevalence, despite its wealth and access to sophisticated medical technologies. Within health care, there is an increasing focus on lifestyle and behavioral interventions that research suggests may be the key to reversing this trend, but thus far their effectiveness in practice is uneven at best. In order to gain a better understanding of the other factors involved in professional diabetes care work that might support or inhibit effective diabetes management, this research treats diabetes as a …


Moving Beyond Cardio: The Value Of Resistance Training, Balance Training, And Other Forms Of Exercise In The Management Of Diabetes, Marni J. Armstrong, Sheri R. Colberg, Ronald J. Sigal Jan 2015

Moving Beyond Cardio: The Value Of Resistance Training, Balance Training, And Other Forms Of Exercise In The Management Of Diabetes, Marni J. Armstrong, Sheri R. Colberg, Ronald J. Sigal

Human Movement Studies & Special Education Faculty Publications

Traditionally, aerobic training has been a central focus of exercise promotion for diabetes management. However, people with diabetes have much to gain from other forms of exercise. This article reviews the evidence and recommendations on resistance, balance, and flexibility training, as well as other, less traditional, forms of exercise such as yoga and Tai Chi.


Isothiocyanate-Rich Moringa Oleifera Extract Reduces Weight Gain, Insulin Resistance, And Hepatic Gluconeogenesis In Mice, Patricio Rojas-Silva, Tugba Boyunegmez Tumer, Peter Kuhn, Allison J. Richard, Shawna Wicks, Jacqueline M. Stephens, Zhong Wang, Randy Mynatt, William Cefalu, Ilya Raskin Jan 2015

Isothiocyanate-Rich Moringa Oleifera Extract Reduces Weight Gain, Insulin Resistance, And Hepatic Gluconeogenesis In Mice, Patricio Rojas-Silva, Tugba Boyunegmez Tumer, Peter Kuhn, Allison J. Richard, Shawna Wicks, Jacqueline M. Stephens, Zhong Wang, Randy Mynatt, William Cefalu, Ilya Raskin

Faculty Publications

© 2015 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim. Scope: Moringa oleifera (moringa) is tropical plant traditionally used as an antidiabetic food. It produces structurally unique and chemically stable moringa isothiocyanates (MICs) that were evaluated for their therapeutic use in vivo. Methods and results: C57BL/6L mice fed very high fat diet (VHFD) supplemented with 5% moringa concentrate (MC, delivering 66 mg/kg/d of MICs) accumulated fat mass, had improved glucose tolerance and insulin signaling, and did not develop fatty liver disease compared to VHFD-fed mice. MC-fed group also had reduced plasma insulin, leptin, resistin, cholesterol, IL-1β, TNFα, and lower hepatic glucose-6-phosphatase …


Insulin Pumps: Beyond Basal-Bolus, Richard Millstein, Nancy Mora Becerra, Jay H. Shubrook Jan 2015

Insulin Pumps: Beyond Basal-Bolus, Richard Millstein, Nancy Mora Becerra, Jay H. Shubrook

Faculty Publications & Research of the TUC College of Osteopathic Medicine

Insulin pumps are a major advance in diabetes management, making insulin dosing easier and more accurate and providing great flexibility, safety, and efficacy for people who need basal-bolus insulin therapy. They are the preferred treatment for people with type 1 diabetes and many with type 2 diabetes who require insulin. This article reviews the basics of how insulin pumps work, who benefits from a pump, and how to manage inpatients and outpatients on insulin pumps.


Health Promoting Lifestyle Profile Of Asian Indians In The U.S. : Analysis Of Data From The Diabetes Among Indian Americans Study, Sanghamitra Siddharam Savadatti Jan 2015

Health Promoting Lifestyle Profile Of Asian Indians In The U.S. : Analysis Of Data From The Diabetes Among Indian Americans Study, Sanghamitra Siddharam Savadatti

Legacy Theses & Dissertations (2009 - 2024)

This dissertation sought to investigate the associations between health promoting lifestyle behaviors and chronic cardiometabolic conditions among Asian Indians residing in the U.S.


Herbal Self-Medication Use In Patients With Diabetes Mellitus Type 2, Ivana Damnjanovic, Dusanka Kitic, Nikola Stefanovic, Snezana Zlatkovic-Guberinic, Aleksandra Catic-Djordjevic, Radmila Velickovic-Radovanovic Jan 2015

Herbal Self-Medication Use In Patients With Diabetes Mellitus Type 2, Ivana Damnjanovic, Dusanka Kitic, Nikola Stefanovic, Snezana Zlatkovic-Guberinic, Aleksandra Catic-Djordjevic, Radmila Velickovic-Radovanovic

Turkish Journal of Medical Sciences

Background/aim: A considerable number of patients suffering from diabetes mellitus (DM) turn to self-medication using medicinal plants, preparations, and medicine. The aim of this study was to investigate self-medication using medicinal plants and the potential influence of health care professionals' advice or media information regarding the use of herbal dietary supplements with hypoglycemic effect in a population of patients with type 2 DM. Materials and methods: This research, in the form of an analytic cross-sectional study, was conducted in 6 pharmacies in the territory of Nis, Serbia, during October 2013. The criterion set for the study was to include patients …


Knowledge, Attitudes, Beliefs, And Behaviors Of Diabetes Among Afro-Caribbeans Near Brooklyn, Sophia I. Allen Jan 2015

Knowledge, Attitudes, Beliefs, And Behaviors Of Diabetes Among Afro-Caribbeans Near Brooklyn, Sophia I. Allen

Walden Dissertations and Doctoral Studies

Literature has found that some minority groups with diabetes have a negative perception of medical professionals when a health problem occurs. This trend is particularly problematic with the diabetes epidemic in the United States. African Americans are more than 2 times as likely to die from diabetes than are Whites, and diabetes prevalence has increased exponentially in New York City where a majority of Afro-Caribbeans live. To address this problem, a cross-sectional design was used to recruit Afro-Caribbeans diagnosed with type 2 diabetes across 7 churches to examine whether shared knowledge, attitudes, beliefs, and behaviors about diabetes screening and its …


Longitudinal Association Between Television Watching, Computer Use And Meal Frequency And Risk Markers In Diabetes Among Youth With Diabetes, Chao Li Jan 2015

Longitudinal Association Between Television Watching, Computer Use And Meal Frequency And Risk Markers In Diabetes Among Youth With Diabetes, Chao Li

Theses and Dissertations

BACKGROUND AND OBJECTIVES: Television watching and computer use are considered to be the main sedentary behaviors in children and youth. However, their longitudinal impact on HbA1c and serum lipids among youth with type 1 diabetes (T1D) and type 2 diabetes (T2D) are under-studied. Sedentary behavior is normally assessed by questionnaire in large epidemiological studies, however, its measurement by questionnaire has not been evaluated among youth with diabetes. Also, no recent studies have evaluated the optimal meal frequency for glycemic control in youth with T1D and T2D; for this reason nutritional guidelines on meal frequency for youth with diabetes are vague. …


Regulation Of Ghrelin: A Possible Treatment Option For Obesity And Diabetes, Sarah Picciotto Jan 2015

Regulation Of Ghrelin: A Possible Treatment Option For Obesity And Diabetes, Sarah Picciotto

The Science Journal of the Lander College of Arts and Sciences

Obesity is a mounting problem in America today. One major concern about obesity is that it is a risk factor for type 2 diabetes, a disease that impairs insulin sensitivity and secretion. This interferes with blood glucose levels and can cause hyperglycemia, which is when there is too much circulating glucose in the blood. Ghrelin, an amino acid peptide responsible for appetite stimulation and energy balance, plays a direct role in insulin secretion and glucose metabolism. In many experiments, elevated ghrelin levels are associated with decreased insulin secretion from pancreatic islet cells. Although ghrelin concentration is decreased in obese individuals …


Regulation Of Pancreatic Β-Cell Function By The Renin-Angiotensin System In Type 2 Diabetes, Robin C. Shoemaker Jan 2015

Regulation Of Pancreatic Β-Cell Function By The Renin-Angiotensin System In Type 2 Diabetes, Robin C. Shoemaker

Theses and Dissertations--Pharmacology and Nutritional Sciences

Diet-induced obesity promotes type 2 diabetes (T2D). Drugs that inhibit the renin-angiotensin system (RAS) have been demonstrated in clinical trials to decrease the onset of T2D. Previously, we demonstrated that mice made obese from chronic consumption of a high-fat (HF) diet have marked elevations in systemic concentrations of angiotensin II (AngII). Pancreatic islets have been reported to possess components of the renin-angiotensin system (RAS), including angiotensin type 1a receptors (AT1aR), the primary receptor for AngII, and angiotensin converting-enzyme 2 (ACE2), which negatively regulates the RAS by catabolizing AngII to angiotensin-(1-7) (Ang-(1-7)). These two opposing proteins have been implicated in the …