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https://www.readbyqxmd.com/read/28646699/insulin-and-the-polycystic-ovary-syndrome
#1
REVIEW
Djuro Macut, Jelica Bjekić-Macut, Dario Rahelić, Mirjana Doknić
Polycystic ovary syndrome (PCOS) is the most prevalent endocrinopathy among women during reproductive age. PCOS is characterised by hyperandrogenaemia, hyperinsulinaemia, and deranged adipokines secretion from the adipose tissue. In addition to the reduced insulin sensitivity, PCOS women exhibit β-cell dysfunction as well. Low birth weight and foetal exposure to androgens may contribute to the development of the PCOS phenotype during life. Further metabolic complications lead to dyslipidaemia, worsening obesity and glucose tolerance, high prevalence of metabolic syndrome, and greater susceptibility to diabetes...
June 12, 2017: Diabetes Research and Clinical Practice
https://www.readbyqxmd.com/read/28645757/sympathetic-response-and-outcomes-following-renal-denervation-in-patients-with-chronic-heart-failure-12-month-outcomes-from-the-symplicity-hf-feasibility-study
#2
Ingrid Hopper, Edoardo Gronda, Uta C Hoppe, Bengt Rundqvist, Thomas H Marwick, Sharad Shetty, Christopher Hayward, Thomas Lambert, Dagmara Hering, Murray Esler, Markus Schlaich, Antony Walton, Flavio Airoldi, Mathias-Christoph Brandt, Sidney A Cohen, Pascalle Reiters, Henry Krum
BACKGROUND: Heart failure (HF) is associated with chronic sympathetic activation. Renal denervation (RDN) aims to reduce sympathetic activity by ablating the renal sympathetic nerves. We investigated the effect of RDN in patients with chronic HF and concurrent renal dysfunction, in a prospective, multicenter, single-arm feasibility study. METHODS AND RESULTS: Thirty-nine patients with chronic systolic HF (left ventricular ejection fraction [LVEF] <40%, New York Heart Association class II-III,) and renal impairment (estimated glomerular filtration rate [eGFR; assessed with Modification of Diet in Renal Disease equation] <75 mL/min/1...
June 20, 2017: Journal of Cardiac Failure
https://www.readbyqxmd.com/read/28635632/glucose-and-lipid-dysmetabolism-in-a-rat-model-of-prediabetes-induced-by-a-high-sucrose-diet
#3
Ana Burgeiro, Manuela G Cerqueira, Bárbara M Varela-Rodríguez, Sara Nunes, Paula Neto, Frederico C Pereira, Flávio Reis, Eugénia Carvalho
Glucotoxicity and lipotoxicity are key features of type 2 diabetes mellitus, but their molecular nature during the early stages of the disease remains to be elucidated. We aimed to characterize glucose and lipid metabolism in insulin-target organs (liver, skeletal muscle, and white adipose tissue) in a rat model treated with a high-sucrose (HSu) diet. Two groups of 16-week-old male Wistar rats underwent a 9-week protocol: HSu diet (n = 10)-received 35% of sucrose in drinking water; Control (n = 12)-received vehicle (water)...
June 21, 2017: Nutrients
https://www.readbyqxmd.com/read/28629388/the-albumin-exendin-4-recombinant-protein-e2hsa-improves-glycemic-control-and-%C3%AE-cell-function-in-spontaneous-diabetic-kkay-mice
#4
Caina Li, Shaocong Hou, Shuainan Liu, Yi Huan, Sujuan Sun, Quan Liu, Zhufang Shen
BACKGROUND: E2HSA is a genetic fusion protein that consists of two tandem exendin-4 molecules that are covalently bonded to recombinant human serum albumin via a peptide linker. Previous studies have demonstrated that E2HSA significantly decreased blood glucose levels, improved β-cell function and promoted β-cell proliferation in diabetic db/dB mice. This study aimed to evaluate the benefits of E2HSA on glucose and lipid metabolism in a spontaneous diabetes animal model, KKAy mice. METHODS: E2HSA was acutely administered at doses of 1, 3 and 9 mg/kg by subcutaneous injection in diabetic KKAy mice with exendin-4 (2 μg/kg) as a positive reference, and then the non-fasting blood glucose and food intake levels were dynamically monitored...
June 19, 2017: BMC Pharmacology & Toxicology
https://www.readbyqxmd.com/read/28628810/gh-administration-decreases-subcutaneous-abdominal-adipocyte-size-in-men-with-abdominal-obesity
#5
Miriam A Bredella, Kalypso Karastergiou, Stijn A Bos, Anu V Gerweck, Martin Torriani, Susan K Fried, Karen K Miller
OBJECTIVE: To investigate the effects of short-term GH administration on abdominal subcutaneous adipocyte size and CT attenuation in men with abdominal obesity. DESIGN: 6-week, randomized, double-blind, placebo-controlled study of GH (starting dose 2μg/kg/d) vs placebo of 15 abdominally obese men (mean age: 34±6years; mean BMI: 37.7±6.1kg/m(2), mean IGF-1 SDS: -1.9±0.5) who underwent abdominal subcutaneous adipose tissue (SAT) aspirations to determine adipocyte size, CTs for body composition and measures of glucose tolerance at baseline and 6weeks...
June 12, 2017: Growth Hormone & IGF Research
https://www.readbyqxmd.com/read/28628263/insulin-resistance-increases-the-risk-of-incident-type-2-diabetes-mellitus-in-patients-with-nonalcoholic-fatty-liver-disease
#6
Yuya Seko, Yoshio Sumida, Saiyu Tanaka, Kojiroh Mori, Hiroyoshi Taketani, Hiroshi Ishiba, Tasuku Hara, Akira Okajima, Atsushi Umemura, Taichiro Nishikawa, Kanji Yamaguchi, Michihisa Moriguchi, Kazuyuki Kanemasa, Kohichiroh Yasui, Shunsuke Imai, Keiji Shimada, Yoshito Itoh
BACKGROUND: Type 2 diabetes mellitus (T2DM) is a major complication of patients with nonalcoholic fatty liver disease (NAFLD). The aim of this retrospective study is to determine the risk factor for development of T2DM in patients with biopsy proven NAFLD. METHODS: Consecutive 162 patients with biopsy-proven NAFLD patients who received 75g oral glucose tolerance test (OGTT) were enrolled as the total cohort. Among them, we analyzed 89 patients without T2DM diagnosed by OGTT to estimate the cumulative rate for development of T2DM as the follow-up cohort...
June 19, 2017: Hepatology Research: the Official Journal of the Japan Society of Hepatology
https://www.readbyqxmd.com/read/28628064/exercise-training-reduces-intrathoracic-fat-regardless-of-defective-glucose-tolerance
#7
Sanna M Honkala, Kumail K Motiani, Jari-Joonas Eskelinen, Anna Savolainen, Virva Saunavaara, Kirsi A Virtanen, Eliisa Löyttyniemi, Jukka Kapanen, Juhani Knuuti, Kari K Kalliokoski, Jarna C Hannukainen
PURPOSE: Epicardial (EAT) and pericardial (PAT) fat masses and myocardial triglyceride content (MTC) are enlarged in obesity and insulin resistance. We studied whether the high-intensity interval training (HIIT) and moderate-intensity continuous training (MICT) similarly decrease ectopic fat in and around the heart and whether the decrease is similar in healthy subjects and subjects with defective glucose tolerance (DGT). METHODS: A total of 28 healthy men (body mass index = 20...
July 2017: Medicine and Science in Sports and Exercise
https://www.readbyqxmd.com/read/28627053/recovery-of-insulin-sensitivity-and-optimal-body-composition-after-rapid-weight-loss-in-obese-dogs-fed-a-high-protein-medium-carbohydrate-diet
#8
A André, I Leriche, G Chaix, C Thorin, M Burger, P Nguyen
This study investigated the effects of an experimental high-protein medium-carbohydrate diet (protein level, 46% metabolizable energy, ME). First, postprandial plasma glucose and insulin kinetics were determined in steady-state overweight/obese Beagle dogs (28%-41% excess body weight) for an experimental high-protein medium-carbohydrate diet (protein level, 46% ME) and a commercial high-carbohydrate medium-protein diet (protein level, 24%ME) in obese dogs. Secondly, all the dogs were included in a weight loss programme...
June 2017: Journal of Animal Physiology and Animal Nutrition
https://www.readbyqxmd.com/read/28625799/continuous-glucose-monitoring-in-a-cystic-fibrosis-patient-to-predict-pulmonary-exacerbation
#9
T B Inman, J A Proudfoot, M Lim, C Demeterco-Berggren
Patients with cystic fibrosis (CF) experience a significant decline in pulmonary status before the diagnosis of cystic fibrosis related diabetes (CFRD). We hypothesized that hyperglycemia may be a factor in the decline of pulmonary function and increased frequency of pulmonary exacerbations. Long term continuous glucose monitoring (CGM) has not been reported in patients with CF and impaired glucose tolerance. We performed CGM for three months in a 17year old male with F508del and F553X CF mutations, baseline forced expiratory volume in 1s (FEV1) of 92% predicted, and impaired glucose tolerance to evaluate changes in glucose levels prior to the diagnosis of a pulmonary exacerbation...
June 15, 2017: Journal of Cystic Fibrosis: Official Journal of the European Cystic Fibrosis Society
https://www.readbyqxmd.com/read/28624907/dityrosine-administration-induces-dysfunction-of-insulin-secretion-accompanied-by-diminished-thyroid-hormones-t3-function-in-pancreas-of-mice
#10
Yin-Yi Ding, Zhu-Qing Li, Xiang-Rong Cheng, Yu-Mei Ran, Sha-Ji Wu, Yonghui Shi, Guowei Le
Oxidized tyrosine products are commonly found in food with high protein content and have been demonstrated to cause damage of liver and kidney in our previous studies. Dityrosine (Dityr) is a typical oxidized tyrosine product. Due to its structural homology with thyroid hormones T3, we assumed that one of the endocrine systems most likely considered in connection with its disruption by Dityr may be the T3 action. T3 plays important roles in insulin synthesis, and thyroid hormone resistance (RTH) is associated with the impairment of glucose metabolism...
June 17, 2017: Amino Acids
https://www.readbyqxmd.com/read/28620495/familial-partial-lipodystrophy-and-proteinuric-renal-disease-due-to-a-missense-c-1045c%C3%A2-%C3%A2-t-lmna-mutation
#11
Athanasios Fountas, Zoe Giotaki, Evangelia Dounousi, George Liapis, Alexandra Bargiota, Agathocles Tsatsoulis, Stelios Tigas
Proteinuric renal disease is prevalent in congenital or acquired forms of generalized lipodystrophy. In contrast, an association between familial partial lipodystrophy (FPLD) and renal disease has been documented in very few cases. A 22-year-old female patient presented with impaired glucose tolerance, hyperinsulinemia, hirsutism and oligomenorrhea. On examination, there was partial loss of subcutaneous adipose tissue in the face, upper and lower limbs, bird-like facies with micrognathia and low set ears and mild acanthosis nigricans...
2017: Endocrinology, Diabetes & Metabolism Case Reports
https://www.readbyqxmd.com/read/28618910/diabetes-prevalence-prognosis-and-management-of-a-potent-cardiovascular-risk-factor
#12
Anna Norhammar, Linda Mellbin, Francesco Cosentino
This review highlights the increased risk of cardiovascular disease and the dismal prognosis after acute coronary events when diabetes is present. Although there have been improvements in this area, diabetes still confers an increased risk. In order to achieve successful outcomes in individuals with diabetes, extensive treatment of risk factors and the use of all available evidence-based therapies are needed. In this context, glucose-lowering therapies and antithrombotic and revascularisation strategies are detailed in this review...
June 2017: European Journal of Preventive Cardiology
https://www.readbyqxmd.com/read/28612564/-study-on-relationship-between-serum-25-hydroxyvitamin-d3-concentration-and-glucose-metabolism
#13
Wei Gao, Yang-Fan Fei, Chun Wang, Da-Wei Chen, Guan-Jian Liu, Xing-Wu Ran
OBJECTIVES: To investigate the relationship between serum 25-hydroxyvitamin D3 [25(OH)D3 ] concentration and glucose metabolism. METHODS: This cross-sectional survey recruited 668 participants, and the demographic and clinical characteristics of the participants were obtained from questionnaires. Physical examination and blood biochemical examination were performed, then the participants were divided into three groups as normal glucose tolerant (NGT) group, impaired glucose regulation(IGR) group, and diabetes mellitus (DM) group...
January 2017: Sichuan da Xue Xue Bao. Yi Xue Ban, Journal of Sichuan University. Medical Science Edition
https://www.readbyqxmd.com/read/28611053/the-rs7903146-variant-in-the-tcf7l2-gene-increases-the-risk-of-prediabetes-type-2-diabetes-in-obese-adolescents-by-impairing-%C3%AE-cell-function-and-hepatic-insulin-sensitivity
#14
Catrina Cropano, Nicola Santoro, Leif Groop, Chiara Dalla Mann, Claudio Cobelli, Alfonso Galderisi, Romy Kursawe, Bridget Pierpont, Martina Goffredo, Sonia Caprio
OBJECTIVE: In this study, we aimed to explore the mechanism by which TCF7L2 rs7903146 risk allele confers susceptibility to impaired glucose tolerance (IGT) or type 2 diabetes (T2D) in obese adolescents. RESEARCH DESIGN AND METHODS: The rs7903146 variant in the TCF7L2 gene was genotyped in a multiethnic cohort of 955 youths. All subjects underwent an oral glucose tolerance test with the use of the Oral Minimal Model to assess insulin secretion, and 33 subjects underwent a hyperinsulinemic-euglycemic clamp...
June 13, 2017: Diabetes Care
https://www.readbyqxmd.com/read/28605158/the-effect-of-liraglutide-on-dietary-lipid-induced-insulin-resistance-in-humans
#15
Juraj Koska, Lizette Lopez, Karen D'Souza, Tracy Osredkar, James Deer, Julie Kurtz, Arline D Salbe, S Mitchell Harman, Peter D Reaven
AIMS: High saturated fatty acid (SFA) diets blunt peripheral insulin action. GLP-1 receptor agonists suppress postprandial lipids and endothelial dysfunction, which may counter SFA-induced insulin resistance. This study tested whether liraglutide suppresses postprandial elevations in lipids and thus protects against high SFA-diet induced insulin resistance. MATERIALS AND METHODS: In a randomized placebo-controlled cross-over study, 32 subjects with normal or mildly impaired glucose tolerance received liraglutide and placebo for 3 weeks each...
June 12, 2017: Diabetes, Obesity & Metabolism
https://www.readbyqxmd.com/read/28604389/a-cullin-4b-ring-e3-ligase-complex-fine-tunes-pancreatic-%C3%AE-cell-paracrine-interactions
#16
Qing Li, Min Cui, Fan Yang, Na Li, Baichun Jiang, Zhen Yu, Daolai Zhang, Yijing Wang, Xibin Zhu, Huili Hu, Pei-Shan Li, Shang-Lei Ning, Si Wang, Haibo Qi, Hechen Song, Dongfang He, Amy Lin, Jingjing Zhang, Feng Liu, Jiajun Zhao, Ling Gao, Fan Yi, Tian Xue, Jin-Peng Sun, Yaoqin Gong, Xiao Yu
Somatostatin secreted by pancreatic δ cells mediates important paracrine interactions in Langerhans islets, including maintenance of glucose metabolism through the control of reciprocal insulin and glucagon secretion. Disruption of this circuit contributes to the development of diabetes. However, the precise mechanisms that control somatostatin secretion from islets remain elusive. Here, we found that a super-complex comprising the cullin 4B-RING E3 ligase (CRL4B) and polycomb repressive complex 2 (PRC2) epigenetically regulates somatostatin secretion in islets...
June 12, 2017: Journal of Clinical Investigation
https://www.readbyqxmd.com/read/28601585/prevalence-of-diabetes-and-prediabetes-in-15-states-of-india-results-from-the-icmr-indiab-population-based-cross-sectional-study
#17
Ranjit Mohan Anjana, Mohan Deepa, Rajendra Pradeepa, Jagadish Mahanta, Kanwar Narain, Hiranya Kumar Das, Prabha Adhikari, Paturi Vishnupriya Rao, Banshi Saboo, Ajay Kumar, Anil Bhansali, Mary John, Rosang Luaia, Taranga Reang, Somorjit Ningombam, Lobsang Jampa, Richard O Budnah, Nirmal Elangovan, Radhakrishnan Subashini, Ulagamathesan Venkatesan, Ranjit Unnikrishnan, Ashok Kumar Das, Sri Venkata Madhu, Mohammed K Ali, Arvind Pandey, Rupinder Singh Dhaliwal, Tanvir Kaur, Soumya Swaminathan, Viswanathan Mohan
BACKGROUND: Previous studies have not adequately captured the heterogeneous nature of the diabetes epidemic in India. The aim of the ongoing national Indian Council of Medical Research-INdia DIABetes study is to estimate the national prevalence of diabetes and prediabetes in India by estimating the prevalence by state. METHODS: We used a stratified multistage design to obtain a community-based sample of 57 117 individuals aged 20 years or older. The sample population represented 14 of India's 28 states (eight from the mainland and six from the northeast of the country) and one union territory...
June 7, 2017: Lancet Diabetes & Endocrinology
https://www.readbyqxmd.com/read/28598101/-pancreatic-%C3%AE-cell-functions-measured-by-continuous-glucose-monitoring-in-han-chinese-with-varied-degree-of-glucose-tolerance
#18
Yu Yue, Hua He, Xiao-Jie Yang, Xiagn-Xun Zhang, Da-Wei Chen, Chun Wang, Guan-Jian Liu, Xing-Wu Ran
OBJECTIVES: To compare the pancreatic β-cell functions of Han people between those with normal glucose tolerance (NGT),prediabetes (PD),and newly-diagnosed type 2 diabetes mellitus (NDDM), and to evaluate the value of the continuous glucose monitoring system (CGMS) in determining β-cell functions. METHODS: A total of 169 volunteers of Han people (20-75 years old, 72 male and 97 female) without diagnosed diabetes were given 75-g oral glucose tolerance test (OGTT) and insulin release tests...
September 2016: Sichuan da Xue Xue Bao. Yi Xue Ban, Journal of Sichuan University. Medical Science Edition
https://www.readbyqxmd.com/read/28597452/impact-of-the-triglyceride-high-density-lipoprotein-cholesterol-ratio-and-the-hypertriglyceremic-waist-phenotype-to-predict-the-metabolic-syndrome-and-insulin-resistance
#19
Helene von Bibra, Sarama Saha, Alexander Hapfelmeier, Gabriele Müller, Peter E H Schwarz
Insulin resistance is the underlying mechanism for the metabolic syndrome and associated dyslipidaemia that theoretically implies a practical tool for identifying individuals at risk for cardiovascular disease and type-2-diabetes. Another screening tool is the hypertriglyceremic-waist phenotype (HTW). There is important impact of the ethnic background but a lack of studied European populations for the association of the triglyceride/high-density lipoprotein cholesterol (HDL-C) ratio and insulin resistance. This observational, retrospective study evaluated lipid ratios and the HTW for predicting the metabolic syndrome/insulin resistance in 1932 non-diabetic individuals from Germany in the fasting state and during a glucose tolerance test...
June 8, 2017: Hormone and Metabolic Research, Hormon- und Stoffwechselforschung, Hormones et Métabolisme
https://www.readbyqxmd.com/read/28596682/diabetes-recurrence-after-metabolic-surgeries-correlates-with-re-impaired-insulin-sensitivity-rather-than-beta-cell-function
#20
Teng Liu, Ming-Wei Zhong, Yi Liu, Dong Sun, Meng Wei, Xin Huang, Yu-Gang Cheng, Qun-Zheng Wu, Dong Wu, Xiao-Qian Zhang, Ke-Xin Wang, San-Yuan Hu, Shao-Zhuang Liu
AIM: To investigate factors causing diabetes recurrence after sleeve gastrectomy (SG) and duodenal-jejunal bypass (DJB). METHODS: SG and DJB were performed on rats with diabetes induced by high-fat diet (HFD) and streptozotocin (STZ). HFD was used to induce diabetes recurrence at 4 wk postoperatively. Body weight, oral glucose tolerance test, homeostatic model assessment of insulin resistance (HOMA-IR), insulin signaling [IR, insulin receptor substrate (IRS)1, IRS2, phosphatidylinositol 3-kinase and AKT in liver and skeletal muscle], oral glucose stimulated insulin secretion, beta-cell morphology (mass, apoptosis and insulin secretion), glucagon-like peptide (GLP)-1, PYY and ghrelin were compared among SG rats with common low-fat diet (SG-LFD), SG with HFD (SG-HFD), DJB rats with LFD (DJB-LFD), DJB with HFD (DJB-HFD) and sham-operation with LFD (Sham) at targeted postoperative times...
May 21, 2017: World Journal of Gastroenterology: WJG
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