Endocrinology, Diabetes, and Metabolism Commons^™

Cd36 And Na/K-Atpase- Α 1 Form A Proinflammatory Signaling Loop In Kidney, David Kennedy, Yiliang Chen, Wenxin Huang, Jamie Viterna, Jiang Liu, Kristen Westfall, Jian Tian, David Bartlett, W.H. Tang, Zijian Xie, Joseph Shapiro, Roy Silverstein

Jiang Liu

Proatherogenic, hyperlipidemic states demonstrate increases in circulating ligands for scavenger receptor CD36 (eg, oxidized low-density lipoprotein [oxLDL]) and the Na/K-ATPase (eg, cardiotonic steroids). These factors increase inflammation, oxidative stress, and progression of chronic kidney disease. We hypothesized that diet-induced obesity and hyperlipidemia potentiate a CD36/Na/K-ATPase–dependent inflammatory paracrine loop between proximal tubule cells (PTCs) and their associated macrophages and thereby facilitate development of chronic inflammation and tubulointerstitial fibrosis. ApoE^-/- and apoE^-/-/cd36^-/- mice were fed a high-fat diet for ≤32 weeks and examined for physiologic and histologic changes in renal function. Compared with apoE^-/-, apoE^{-/- …}

Ectopic Cushing Syndrome And Pancreatic Cancer: A Case Report, Mira Mitry Md, Nicole M. Agostino Do, Stacey Smith Md, Facp, Vasudev G. Magaji Md, Ms

Vasudev G Magaji MD, MS

No abstract provided.

Ectopic Acth Syndrome Due To Men-I Associated Metastatic Neuroendocrine Pancreatic Gastrinoma In A 22 Year Old Female Without Hyperparathyroidism: Diagnostic And Therapeutic Challenges, Vasudev Magaji, Mansoor Tanwir, Mary Korytkowski, Sue Challinor

Vasudev G Magaji MD, MS

Introduction: Ectopic ACTH production due to malignant tumors is a rare cause of Cushing's syndrome (CS). Diagnosis and treatment of such patients can be challenging. Case: 22 year old female with recent onset fatigue, weight gain, polyuria, polydipsia, presented with melena and hypotension. She had cushingoid facies, acne, central obesity, muscle weakness and purple striae. Labs showed: Cortisol 56 µg/dl (5-15), 24 hour UFC >1000 µg/24hr (5-50), Cortisol after 1mg Dexamethasone suppression 54 µg/dl (Learning points: When evaluating patients with suspected ectopic ACTH production, independent review of radiologic imaging should be done to avoid being misled by prior reports. EUS …

Prepubertal Organochlorine Pesticide Concentrations And Age Of Pubertal Onset Among Russian Boys, Thuy Lam, Paige Williams, Mary Lee, Susan Korrick, Linda Birnbaum, Jane Burns, Oleg Sergeyev, Boris Revich, Larisa Altshul, Donald Patterson, Wayman Turner, Russ Hauser

Mary M. Lee

BACKGROUND: In animal studies, organochlorine pesticide (OCP) exposure alters pubertal development; however, epidemiological data are limited and inconsistent. OBJECTIVE: To evaluate the associations of serum OCP concentrations [hexachlorobenzene (HCB), beta-hexachlorocyclohexane (beta-HCH), and p,p'-dichlorodiphenyldichloroethylene (p,p'-DDE)] with male pubertal onset. METHODS: In Chapaevsk, Russia, a town environmentally contaminated with OCPs, 350 8-9 year old boys with measured OCPs were enrolled during 2003-2005 and were followed annually for eight years. We evaluated three measures of pubertal onset: testicular volume (TV) > 3 mL in either testis, or stage 2 or greater for genitalia (G2+), or pubic hair (P2+). We used multivariable interval-censored models to …

Association Between Chlorinated Pesticides In The Serum Of Prepubertal Russian Boys And Longitudinal Biomarkers Of Metabolic Function, Jane Burns, Paige Williams, Susan Korrick, Russ Hauser, Oleg Sergeyev, Boris Revich, Thuy Lam, Mary Lee

Mary M. Lee

Organochlorine pesticides (OCPs) have been linked to adult metabolic disorders; however, few studies have examined these associations in childhood. We prospectively evaluated the associations of baseline serum OCPs (hexachlorobenzene, beta-hexachlorocyclohexane, and p,p'-dichlorodiphenyldichloroethylene) in Russian boys with subsequent repeated measurements of serum glucose, insulin, lipids, leptin, and calculated homeostatic model assessment of insulin resistance (IR). During 2003-2005, we enrolled 499 boys aged 8-9 years in a prospective cohort; 318 had baseline serum OCPs and serum biomarkers measured at ages 10-13 years. Multivariable generalized estimating equation and mediation regression models were used to examine associations and direct and indirect (via body mass …

Television Watching, Diet Quality, And Physical Activity And Diabetes Among Three Ethnicities In The United States, Fatma G. Huffman, Joan A. Vaccaro, Joel C. Exebio, Gustavo C. Zarini, Timothy Katz, Zisca Dixon

Joan A. Vaccaro

Diabetes is a world-wide epidemic associated with multiple environmental factors. Prolonged television viewing (TV) time has been related to increased risk of obesity and type 2 diabetes in several studies. TV viewing has been positively associated with cardiovascular disease risk factors, lower energy expenditure, over-eating high-calorie and high-fat foods. The objective of this study was to assess the associations of hours of TV viewing with dietary quality, obesity and physical activity for three ethnic minorities with and without type 2 diabetes. Diet quality and physical activity were inversely related to prolonged TV viewing. African Americans and participants with type 2 …

Monounsaturated Fatty Acid, Carbohydrate Intake, And Diabetes Status Are Associated With Arterial Pulse Pressure, Joan Vaccaro, Fatma G. Huffman

Joan A. Vaccaro

Background

Diabetes is a global epidemic. Cardiovascular disease (CVD) is one of the most prevalent consequences of diabetes. Nutrition is considered a modifiable risk factor for CVD, particularly for individuals with diabetes; albeit, there is little consensus on the role of carbohydrates, proteins and fats for arterial health for persons with or without diabetes. In this study, we examined the association of macronutrients with arterial pulse pressure (APP), a surrogate measure of arterial health by diabetes status and race.

Methods

Participants were 892 Mexican Americans (MA), 1059 Black, non-Hispanics (BNH) and 2473 White, non-Hispanics (WNH) with and without diabetes of …

Healthy Eating Index And Alternate Healthy Eating Index Among Haitian Americans And African Americans With And Without Type 2 Diabetes, Fatma G. Huffman, Mauricio De La Cera, Joan A. Vaccaro, Gustavo C. Zarini, Joel C. Exebio, Deva Gundupalli, Lamya Shaban

Joan A. Vaccaro

Ethnicities within Black populations have not been distinguished in most nutrition studies. We sought to examine dietary differences between African Americans (AA) and Haitian Americans (HA) with and without type 2 diabetes using the Healthy Eating Index, 2005 (HEI-05), and the Alternate Healthy Eating Index (AHEI). The design was cross-sectional (225 AA, 246 HA) and recruitment was by community outreach. The eating indices were calculated from data collected with the Harvard food-frequency questionnaire. African Americans had lower HEI-05 scores (−8.67, 13.1); , than HA. Haitian American females and AA males had higher AHEI than AA females and HA males, respectively, …