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diabetes obesity hormones

Cyndya A Shibao, Jorge E Celedonio, Robyn Tamboli, Reem Sidani, Latisha Love-Gregory, Terri Pietka, Yanhua Xiong, Yan Wei, Naji N Abumrad, Nada A Abumrad, Charles Robb Flynn
Context: Abnormal fatty acid (FA) metabolism contributes to diabetes and cardiovascular disease. The FA receptor CD36 has been linked to risk of metabolic syndrome. In rodents CD36 regulates various aspects of fat metabolism but whether it has similar actions in humans is unknown. We examined impact of a coding single-nucleotide polymorphism in CD36 on post-prandial hormone and bile acid (BA) responses. Objective: To examine if the minor allele (G) of coding CD36 variant rs3211938 (G/T) which reduces CD36 level by approximately 50% influences hormonal responses to a high-fat meal (HFM)...
March 12, 2018: Journal of Clinical Endocrinology and Metabolism
Sudha S Shankar, R Ravi Shankar, Lori A Mixson, Deborah L Miller, Barnali Pramanik, Amy K O'Dowd, Donna M Williams, Clay B Frederick, Chan R Beals, S Aubrey Stoch, Helmut O Steinberg, David E Kelley
Oxyntomodulin (OXM), an enteroendocrine hormone, causes appetite suppression, increased energy expenditure, and weight loss in obese humans via activation of GLP-1 and glucagon receptors. However, the effects of OXM on glucose homeostasis remain ill-defined. To address this gap, we evaluated the effects of an intravenous (IV) infusion of native OXM on insulin secretory rates (ISR) and glycemic excursion in a graded glucose infusion (GGI) procedure in two separate randomized, placebo-controlled, single dose crossover trials in 12 overweight and obese subjects without diabetes, and in 12 obese subjects with Type 2 diabetes (T2DM) respectively, using the GLP-1 analog, liraglutide as a comparator in the T2DM...
March 15, 2018: Diabetes
Pernille Wismann, Søren L Pedersen, Gitte Hansen, Karin Mannerstedt, Philip J Pedersen, Palle B Jeppesen, Niels Vrang, Keld Fosgerau, Jacob Jelsing
AIM: Analogues of several gastrointestinal peptide hormones have been developed into effective medicines for treatment of diseases such as type 2 diabetes mellitus (T2DM), obesity and short bowel syndrome (SBS). In this study, we aimed to explore whether the combination of glucagon-like peptide-1 (GLP-1) and glucagon-like peptide-2 (GLP-2) into a potent co-agonist could provide additional benefits compared to existing monotherapies. METHODS: A short-acting (GUB09-123) and a half-life extended (GUB09-145) GLP-1/GLP-2 co-agonist were generated using solid-phase peptide synthesis and tested for effects on food intake, body weight, glucose homeostasis, and gut proliferation in lean mice and in diabetic db/db mice...
March 11, 2018: Physiology & Behavior
Melanie Li, Swetlana Sirko
Building on the seminal work by Geoffrey Harris in the 1970s, the neuroendocrinology field, having undergone spectacular growth, has endeavored to understand the mechanisms of hormonal connectivity between the brain and the rest of the body. Given the fundamental role of the brain in the orchestration of endocrine processes through interactions among neurohormones, it is thus not surprising that the structural and/or functional alterations following traumatic brain injury (TBI) can lead to endocrine changes affecting the whole organism...
March 14, 2018: Journal of Clinical Medicine
Tandra R Chakraborty, Victoria Gomez, Debasis Adhikari, Sanjoy Chakraborty
OBJECTIVE: To determine the hormonal changes that occur as a result of the long-term intake of a very-high-fat diet (VHFD) that leads to simultaneous changes in the islets of Langerhans and adipocyte cell size. METHODS: Male mice were fed with a normal chow diet (ND, n = 15) and a VHFD (n = 30) for 2, 12, and 24 weeks. Body weight, food intake, caloric intake (fat [saturated and unsaturated], protein, and carbohydrate), hormone levels (leptin and insulin), and islet of Langerhans/adipocyte size were quantitatively recorded...
March 13, 2018: Journal of the American College of Nutrition
Megan R Kwon, Eileen Cress, W Andrew Clark, Arsham Alamian, Yongke Lu, Jonathan M Peterson
Background: C1q TNF related protein 3 (CTRP3) is a relatively novel hormonal factor primarily derived from adipose tissue and has anti-diabetic properties. To determine if CTRP3 could play a role in early childhood development, the purpose of this study was to establish the presence of CTRP3 in breast milk (BM) and to determine whether CTRP3 levels were correlated with pregravid obesity status of the mother. Methods: Breast milk was collected from breast-feeding mothers who had a pregravid body mass index (BMI) classification of normal weight (BMI 18-25 kg/m2 , n = 23) or obese (BMI > 30 kg/m2 , n = 14)...
2018: PeerJ
Bin Tang, Limin Xiao, Shenhao Xie, Guanlin Huang, Zhigang Wang, Dongwei Zhou, Erming Zeng, Tao Hong
OBJECTIVES: Removal of recurrent or residual symptomatic craniopharyngiomas is more challenging than the primary surgery. The extended endoscopic endonasal (EEE) approach has been proposed an alternative surgical route for removal of various suprasellar tumors including craniopharyngiomas currently. In this study, we summarized the operative experience and described the feasibility and advantages of this technique in recurrent or residual symptomatic craniopharyngiomas. PATIENTS AND METHODS: A retrospective review of 15 patients (9 males and 6 females) whom underwent EEE approach between April 2012 and February 2017, were included in this study...
February 6, 2018: Clinical Neurology and Neurosurgery
Yanira Sanchez-De la Torre, Rita Wadeea, Victoria Rosas, Karen L Herbst
Background Lipedema is a chronic disorder presenting in women during puberty or other times of hormonal change such as childbirth or menopause, characterized by symmetric enlargement of nodular, painful subcutaneous adipose tissue (fat) in the limbs, sparing the hands, feet and trunk. Healthcare providers underdiagnose or misdiagnose lipedema as obesity or lymphedema. Materials and methods The benefits (friend) and negative aspects (foe) of lipedema were collected from published literature, discussions with women with lipedema, and institutional review board approved evaluation of medical charts of 46 women with lipedema...
March 9, 2018: Hormone Molecular Biology and Clinical Investigation
Qilin Long, Lei Wang, Mei Zhou, Yuxin Wu, Tianbao Chen
Insulin, as one of the most important hormones regulating energy metabolism, plays an essential role in maintaining glucose and lipid homeostasis in vivo. Failure or insufficiency of insulin secretion from pancreatic beta-cells increases glucose and free fatty acid level in circulation and subsequently contributes to the emergence of hyperglycaemia and dyslipidaemia. Therefore, stimulating the insulin release benefits the treatment of type 2 diabetes and obesity significantly. Frog skin peptides have been extensively studied for their biological functions, among which, Phylloseptin peptides discovered in Phyllomedusinae frogs have been found to exert antimicrobial, antiproliferative and insulinotropic activities, while the mechanism associated with Phylloseptin-induced insulin secretion remains elusive...
March 7, 2018: Journal of Cellular and Molecular Medicine
Laura Palanker Musselman, Ronald P Kühnlein
Excess adipose fat accumulation, or obesity, is a growing problem worldwide in terms of both the rate of incidence and the severity of obesity-associated metabolic disease. Adipose tissue evolved in animals as a specialized dynamic lipid storage depot: adipose cells synthesize fat (a process called lipogenesis) when energy is plentiful and mobilize stored fat (a process called lipolysis) when energy is needed. When a disruption of lipid homeostasis favors increased fat synthesis and storage with little turnover owing to genetic predisposition, overnutrition or sedentary living, complications such as diabetes and cardiovascular disease are more likely to arise...
March 7, 2018: Journal of Experimental Biology
Sirimon Reutrakul, Eve Van Cauter
A large body of epidemiologic evidence has linked insufficient sleep duration and quality to the risk of obesity, insulin resistance and type 2 diabetes. To address putative causal mechanisms, this review focuses on laboratory interventions involving several nights of experimental sleep restriction, fragmentation or extension and examining metabolically relevant outcomes. Sleep restriction has been consistently shown to increase hunger, appetite and food intake, with the increase in caloric intake in excess of the energy requirements of extended wakefulness...
March 3, 2018: Metabolism: Clinical and Experimental
Qian Chen, Ellen Francis, Gang Hu, Liwei Chen
BACKGROUND: Gestational diabetes mellitus (GDM) reflects an increased risk of developing type 2 diabetes (T2D) after pregnancy in women. Offspring born to mothers with GDM are at an elevated risk of obesity and T2D at a young age. Currently, there are lack of ways for identifying women in early pregnancy who are at risk of developing GDM. As a result, both mothers and fetus are not treated until late in the second trimester when GDM is diagnosed. The recent advance in metabolomics, a new approach of systematic investigation of the metabolites, provides an opportunity for early detection of GDM, and classifying the risk of subsequent chronic diseases among women and their offspring...
January 31, 2018: Journal of Diabetes and its Complications
Anita Szentpéteri, Hajnalka Lőrincz, Sándor Somodi, Viktória Evelin Varga, György Paragh, Ildikó Seres, György Paragh, Mariann Harangi
BACKGROUND: Obestatin is a ghrelin-associated peptide, derived from preproghrelin. Although many of its effects are unclear, accumulating evidence supports positive actions on both metabolism and cardiovascular function. To date, level of obestatin and its correlations to the lipid subfractions in non-diabetic obese (NDO) patients have not been investigated. METHODS: Fifty NDO patients (BMI: 41.96 ± 8.6 kg/m2 ) and thirty-two normal-weight, age- and gender-matched healthy controls (BMI: 24...
March 5, 2018: Lipids in Health and Disease
Christian Cobbold
Obesity and associated disorders such as type 2 diabetes mellitus (T2DM) pose an increasing risk to the health of both individuals and society. Adipose tissue is an active endocrine organ, secreting many hormones, known as adipokines. Evidence suggests that one suggest adipokine, resistin, may be elevated in the plasma of individuals with T2DM, and early reports indicated that this may contribute to the impaired glucose tolerance and insulin resistance observed in T2DM, hence its name, resistin, however subsequent evidence suggests it may have a proinflammatory role...
March 1, 2018: Journal of Sports Medicine and Physical Fitness
Amanda K Galan-Davila, Jiyoon Ryu, Kun Dong, Yang Xiao, Zhe Dai, Deling Zhang, Zhi Li, Amanda M Dick, Kevin D Liu, Amrita Kamat, Min Lu, Qunfeng Dong, Feng Liu, Lily Q Dong
Adiponectin is an adipocyte-derived hormone with antidiabetic activities, which include increasing the sensitivity of cells to insulin. Adaptor protein containing pleckstrin homology domain, phosphotyrosine-binding domain, and leucine zipper motif (APPL1) stimulates adiponectin signaling and promotes adiponectin's insulin-sensitizing effects by binding to two adiponectin receptors, AdipoR1 and AdipoR2, and the insulin receptor. In the present study, we report on an alternative splicing variant of APPL1 (APPL1sv) that is highly expressed in mouse liver, pancreas, and spleen tissues...
February 26, 2018: Journal of Biological Chemistry
Rodrigo B Mansur, Yena Lee, Mehala Subramaniapillai, Elisa Brietzke, Roger S McIntyre
Major depressive disorder and bipolar disorder are highly prevalent and disabling conditions. Cognition is considered a core domain of their psychopathology and a principle mediator of psychosocial impairment, disproportionately accounting for overall illness-associated costs. There are few interventions with replicated evidence of efficacy in treating cognitive deficits in mood disorders. Evidence also indicates that cognitive deficits are associated with obesity and involve significant impairment across multiple domains...
February 23, 2018: Neuropharmacology
Tomoe Hirota, Tomoaki Morioka, Koichiro Yoda, Norikazu Toi, Noriyuki Hayashi, Saori Maruo, Yuko Yamazaki, Masafumi Kurajoh, Koka Motoyama, Shinsuke Yamada, Tetsuo Shoji, Masanori Emoto, Masaaki Inaba
AIMS/INTRODUCTION: Poor sleep quality is associated with obesity and diabetes. The adipocyte-derived hormone leptin was recently shown to underlie the link between abnormal sleep and obesity. We aimed to investigate the association between leptin and sleep quality in type 2 diabetic patients. MATERIALS AND METHODS: In this cross-sectional study, we studied 182 type 2 diabetic patients, among whom 113 were diagnosed with obesity (body mass index ≥ 25 kg/m2 ). Fasting plasma leptin levels were measured, and sleep architecture was assessed using single-channel electroencephalography...
February 26, 2018: Journal of Diabetes Investigation
Rosanna Iacona, Vito Bonomo, Mariaconcetta Di Piazza, Angela Sansone, Manuela Usala, Salvatore Novo, Carlo Pavone
OBJECTIVE: Testosterone levels play a role in cardiac and vascular pathology. In the present study we investigated the prognostic significance of this hormone for cardiovascular outcome, in a 5-year follow-up. MATERIALS AND METHODS: Our cohort included 802 adult subjects, from 40 to 80 years. Patients were excluded if they had a past history of peripheral or coronary artery disease, and revascularization. A blood sample was drawn to valuate testosterone level, and we considered normal testosterone levels 300 ng/dl...
December 31, 2017: Archivio Italiano di Urologia, Andrologia
Reetobrata Basu, Yanrong Qian, John J Kopchick
Growth hormone (GH) is produced primarily by anterior pituitary somatotroph cells. Numerous acute human (h) GH treatment and long-term follow-up studies and extensive use of animal models of GH action have shaped the body of GH research over the past 40-50 years. Work on the GH receptor (R) knock-out (GHRKO) mice and results of studies on GH resistant Laron Syndrome (LS) patients have helped define many physiological actions of GH including those dealing with metabolism, obesity, cancer, diabetes, cognition, and aging/longevity...
February 19, 2018: European Journal of Endocrinology
Lizandra M Paravidine Sasaki, Keitty R C Andrade, Ana Claudia Morais Godoy Figueiredo, Miriam da S Wanderley, Maurício G Pereira
The objective of our study was to estimate the frequency of pre-malignant and malignant lesions in endometrial polyps and to evaluate associated clinical and demographic factors. A literature search was performed in major databases and the gray literature using the terms polyps OR endometrial polyp AND endometrial neoplasms OR endometrial cancer OR endometrial hyperplasia OR malignan*. Studies describing the frequency of pre-malignant and malignant lesions in endometrial polyps and any clinical or demographic factors associated with malignant lesions extracted using hysteroscopy were considered eligible...
February 14, 2018: Journal of Minimally Invasive Gynecology
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