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https://www.readbyqxmd.com/read/28938465/serum-insulin-bioassay-reflects-insulin-sensitivity-and-requirements-in-type-1-diabetes
#1
Joseph A M J L Janssen, Gemma Llauradó, Aimee J Varewijck, Per-Henrik Groop, Carol Forsblom, Sonia Fernández-Veledo, Elisabeth S R van den Dungen, Joan Vendrell, Leo J Hofland, Hannele Yki-Järvinen
Background: Insulin resistance could increase insulin requirements in type 1 diabetes (TD1). Current insulin immunoassays do not detect insulin analogues. Kinase Insulin Receptor Activation (KIRA) bioassays specific for human insulin receptor isoforms A and B (IR-A and IR-B) permit assessment of all circulating insulin bioactivity. We studied whether IR-A and IR-B KIRA assays are related to direct measures of insulin sensitivity or insulin doses in TD1. Methods: We evaluated 31 adult patients with TD1 (age 45...
August 14, 2017: Journal of Clinical Endocrinology and Metabolism
https://www.readbyqxmd.com/read/28938447/development-and-risk-factors-of-type-2-diabetes-in-a-nationwide-population-of-women-with-polycystic-ovary-syndrome
#2
Katrine Hass Rubin, Dorte Glintborg, Mads Nybo, Bo Abrahamsen, Marianne Andersen
Objective: Polycystic ovary syndrome (PCOS) is associated with insulin resistance and obesity. Prospective population-based data regarding development and possible predictors of type 2 diabetes (T2D) in PCOS are limited. Design: National Register-based study. Methods: Patients with PCOS (PCOS Denmark and embedded cohort; PCOS OUH) and a control population with no previous diagnosis of T2D. PCOS OUH (N=1,162) included premenopausal women with PCOS and standardized clinical and biochemical examination...
August 29, 2017: Journal of Clinical Endocrinology and Metabolism
https://www.readbyqxmd.com/read/28938429/effect-of-preconception-impaired-glucose-tolerance-on-pregnancy-outcomes-in-women-with-polycystic-ovary-syndrome
#3
Daimin Wei, Bo Zhang, Yuhua Shi, Lin Zhang, Shigang Zhao, Yanzhi Du, Lizhen Xu, Richard S Legro, Heping Zhang, Zi-Jiang Chen
Context: Women with polycystic ovary syndrome (PCOS) commonly have intrinsic insulin resistance and are recommended to undergo an oral glucose tolerance test (OGTT) for diabetes screening. However, the effect of preconception impaired glucose tolerance (IGT) on pregnancy is still unclear. Objective: To prospectively assess the effect of preconception IGT on pregnancy outcomes. Design, Setting, Patients, Intervention(s) and Main Outcome Measure(s): This was a secondary analysis of a multicenter randomized trial in 1508 women with PCOS comparing live birth and obstetric complications between fresh and frozen embryo transfer...
August 14, 2017: Journal of Clinical Endocrinology and Metabolism
https://www.readbyqxmd.com/read/28936751/guidelines-versus-real-life-practice-the-case-of-colonoscopy-in-acromegaly
#4
M Parolin, F Dassie, L Russo, S Mazzocut, M Ferrata, E De Carlo, R Mioni, F Fallo, R Vettor, C Martini, P Maffei
PURPOSE: The aim of this study is to investigate guideline application and colonoscopy findings in real-life practice in acromegaly. METHODS: We conducted a retrospective observational non-interventional and cross-sectional analysis on 146 patients with acromegaly (ACRO) referred to our clinic. We evaluated colonoscopy data, focusing on the correlation between colonoscopy findings and hormonal/metabolic values. RESULTS: The total number of colonoscopies performed in ACRO patients increased from 6 in the period 1990-1994 to 57 in the period 2010-2014...
September 21, 2017: Pituitary
https://www.readbyqxmd.com/read/28936587/metabolite-ratios-as-potential-biomarkers-for-type-2-diabetes-a-direct-study
#5
Sophie Molnos, Simone Wahl, Mark Haid, E Marelise W Eekhoff, René Pool, Anna Floegel, Joris Deelen, Daniela Much, Cornelia Prehn, Michaela Breier, Harmen H Draisma, Nienke van Leeuwen, Annemarie M C Simonis-Bik, Anna Jonsson, Gonneke Willemsen, Wolfgang Bernigau, Rui Wang-Sattler, Karsten Suhre, Annette Peters, Barbara Thorand, Christian Herder, Wolfgang Rathmann, Michael Roden, Christian Gieger, Mark H H Kramer, Diana van Heemst, Helle K Pedersen, Valborg Gudmundsdottir, Matthias B Schulze, Tobias Pischon, Eco J C de Geus, Heiner Boeing, Dorret I Boomsma, Anette G Ziegler, P Eline Slagboom, Sandra Hummel, Marian Beekman, Harald Grallert, Søren Brunak, Mark I McCarthy, Ramneek Gupta, Ewan R Pearson, Jerzy Adamski, Leen M 't Hart
AIMS/HYPOTHESIS: Circulating metabolites have been shown to reflect metabolic changes during the development of type 2 diabetes. In this study we examined the association of metabolite levels and pairwise metabolite ratios with insulin responses after glucose, glucagon-like peptide-1 (GLP-1) and arginine stimulation. We then investigated if the identified metabolite ratios were associated with measures of OGTT-derived beta cell function and with prevalent and incident type 2 diabetes...
September 21, 2017: Diabetologia
https://www.readbyqxmd.com/read/28936567/metformin-as-a-repurposed-therapy-in-advanced-non-small-cell-lung-cancer-nsclc-results-of-a-phase-ii-trial
#6
Anish B Parikh, Peter Kozuch, Nicholas Rohs, Daniel J Becker, Benjamin P Levy
Background Metformin has been shown to have anti-neoplastic activity in non-small cell lung cancer (NSCLC) in both preclinical and observational studies, however this has never been prospectively evaluated. This single-arm phase II trial, while not fully accrued, is the first known prospective study evaluating the use of metformin with chemotherapy in advanced NSCLC. Methods Patients received carboplatin AUC 5 + pemetrexed 500 mg/m2 IV every 21 days for 4 cycles. For patients who achieved at least stable disease, maintenance pemetrexed was administered until progression or toxicity...
September 22, 2017: Investigational New Drugs
https://www.readbyqxmd.com/read/28935866/mulberry-leaf-alleviates-streptozotocin-induced-diabetic-rats-by-attenuating-nefa-signaling-and-modulating-intestinal-microflora
#7
Yao Sheng, Shujuan Zheng, Tianshi Ma, Chuanhai Zhang, Xiaoqun Ou, Xiaoyun He, Wentao Xu, Kunlun Huang
Improvement of hyperglycemia through dietotherapy/herbal remedy is an effective approach to treating diabetes. In this study, mulberry leaf, famous for silkworm's special food and therapeutic value without any side effects, alleviated diabetes by attenuating NEFA signaling and modulating intestinal microflora. Mulberry leaf treatment significantly reduce fasting blood-glucose and HbA1c, ameliorate the blood lipid profile and improve insulin resistance in streptozotocin-induced diabetic rats. Mechanistically, we found that mulberry leaf inhibited NEFA signaling by reducing downstream signaling in the NEFA pathway, further verified by reduced PKC and improved cellular energy homeostasis based on restored expression of PGC-1α, AK2, OXPHOS and adiponectin...
September 21, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28935388/%C3%AE-cell-function-over-time-in-adolescents-with-new-type-2-diabetes-and-obese-adolescents-without-diabetes
#8
Deborah A Elder, Lindsey N Hornung, Jane C Khoury, David A D'Alessio
PURPOSE: The progression of β-cell function in newly diagnosed adolescents with type 2 diabetes mellitus (T2DM) is not well documented. We hypothesized that at the time of diagnosis with T2DM, adolescents would have impaired β-cell function as demonstrated by the disposition index (calculated as: insulin secretion adjusted for insulin sensitivity), and this would be followed by a rapid decline of function despite standard medical management. METHODS: Thirty-nine adolescents with recently diagnosed T2DM and 32 obese adolescent controls with normal glucose tolerance had acute insulin response to glucose, homeostatic model assessment of insulin resistance, and disposition index measured serially over 2 years...
September 18, 2017: Journal of Adolescent Health: Official Publication of the Society for Adolescent Medicine
https://www.readbyqxmd.com/read/28935147/effect-of-resistant-wheat-starch-on-subjective-appetite-and-food-intake-in-healthy-adults
#9
Christine H Emilien, Walter H Hsu, James H Hollis
OBJECTIVE: The aim of this study was to determine the effect of replacing standard wheat flour (SWF) with resistant wheat starch (RWS) on markers of appetite and food intake in healthy adults. METHODS: A randomized, single-blind, crossover study was conducted with 27 healthy adults (ages 23 ± 2 y with a body mass index of 23.0 ± 3.0 kg/m(2)). After an overnight fast, muffins that contained only SWF or muffins in which 40% of the SWF was replaced with RWS were consumed as part of the breakfast meal...
November 2017: Nutrition
https://www.readbyqxmd.com/read/28935140/d-allulose-enhances-postprandial-fat-oxidation-in-healthy-humans
#10
Tomonori Kimura, Akane Kanasaki, Noriko Hayashi, Takako Yamada, Tetsuo Iida, Yasuo Nagata, Kazuhiro Okuma
OBJECTIVE: d-Allulose, a C-3 epimer of d-fructose, has been reported to decrease body weight and adipose tissue weight in animal studies and is expected to be a potent antiobese sweetener. Our animal study suggested that one of the mechanisms of d-allulose's antiobesity function is an increase in energy expenditure. However, a few studies have thus far explored the underlying mechanism in humans. The aim of this study was to examine the effects of a single ingestion of d-allulose on postprandial energy metabolism in healthy participants...
November 2017: Nutrition
https://www.readbyqxmd.com/read/28935125/maternal-circulating-adipokine-profile-and-insulin-resistance-in-women-at-high-risk-of-developing-gestational-diabetes-mellitus
#11
Kym J Guelfi, Ming Jing Ong, Shaofu Li, Karen E Wallman, Dorota A Doherty, Paul A Fournier, John P Newnham, Jeffrey A Keelan
BACKGROUND: Cytokines produced by adipose and placental tissues (adipokines) have been implicated in the development of gestational diabetes mellitus (GDM). There is, however, limited research regarding the relationship between advancing pregnancy, maternal adipokine profile, insulin resistance and the development of GDM. Furthermore, no studies have investigated these parameters in women with a history of GDM who are at the highest risk of recurrence. This study examined the circulating concentrations of a number of adipokines associated with insulin resistance at two points in pregnancy, and determined whether they were altered in women who developed GDM...
August 24, 2017: Metabolism: Clinical and Experimental
https://www.readbyqxmd.com/read/28933578/effects-of-resveratrol-supplementation-on-risk-factors-of-non-communicable-diseases-a-meta-analysis-of-randomized-controlled-trials
#12
Xiao-Fei Guo, Jiao-Mei Li, Jun Tang, Duo Li
The results of randomized controlled trials (RCTs) investigating resveratrol supplementation on risk factors of non-communicable diseases (NCDs) have been inconsistent. The present meta-analysis aimed to quantitatively evaluate the effects of resveratrol intervention on risk factors of NCDs. PubMed and Scopus databases were searched up to June 2017. Weighted mean differences were calculated for net changes in risk factors of NCDs by using a random-effects model. Pre-specified subgroup and univariate meta-regression analyses were carried out to explore the sources of heterogeneity...
September 21, 2017: Critical Reviews in Food Science and Nutrition
https://www.readbyqxmd.com/read/28931850/effect-of-caloric-restriction-on-gut-permeability-inflammation-markers-and-fecal-microbiota-in-obese-women
#13
Beate Ott, Thomas Skurk, Ljiljana Hastreiter, Ilias Lagkouvardos, Sandra Fischer, Janine Büttner, Teresa Kellerer, Thomas Clavel, Michael Rychlik, Dirk Haller, Hans Hauner
Recent findings suggest an association between obesity, loss of gut barrier function and changes in microbiota profiles. Our primary objective was to examine the effect of caloric restriction and subsequent weight reduction on gut permeability in obese women. The impact on inflammatory markers and fecal microbiota was also investigated. The 4-week very-low calorie diet (VLCD, 800 kcal/day) induced a mean weight loss of 6.9 ± 1.9 kg accompanied by a reduction in HOMA-IR (Homeostasis model assessment-insulin resistance), fasting plasma glucose and insulin, plasma leptin, and leptin gene expression in subcutaneous adipose tissue...
September 20, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28931532/genetic-variation-of-habitual-coffee-consumption-and-glycemic-changes-in-response-to-weight-loss-diet-intervention-the-preventing-overweight-using-novel-dietary-strategies-pounds-lost-trial
#14
Liyuan Han, Wenjie Ma, Dianjianyi Sun, Yoriko Heianza, Tiange Wang, Yan Zheng, Tao Huang, Donghui Duan, J George A Bray, Catherine M Champagne, Frank M Sacks, Lu Qi
Background: Coffee consumption has been associated with glucose metabolism and risk of type 2 diabetes.Objective: We examined whether the genetic variation determining habitual coffee consumption affected glycemic changes in response to weight-loss dietary intervention.Design: A genetic risk score (GRS) was calculated based on 8 habitual coffee consumption-associated single nucleotide polymorphisms. We used general linear models to test changes in glycemic traits in groups randomly assigned to high- and low-fat diets according to tertiles of the GRS...
September 20, 2017: American Journal of Clinical Nutrition
https://www.readbyqxmd.com/read/28930993/confocal-imaging-of-neuropeptide-y-phluorin-a-technique-to-visualize-insulin-granule-exocytosis-in-intact-murine-and-human-islets
#15
Madina Makhmutova, Tao Liang, Herbert Gaisano, Alejandro Caicedo, Joana Almaça
Insulin secretion plays a central role in glucose homeostasis under normal physiological conditions as well as in disease. Current approaches to study insulin granule exocytosis either use electrophysiology or microscopy coupled to the expression of fluorescent reporters. However most of these techniques have been optimized for clonal cell lines or require dissociating pancreatic islets. In contrast, the method presented here allows for real time visualization of insulin granule exocytosis in intact pancreatic islets...
September 13, 2017: Journal of Visualized Experiments: JoVE
https://www.readbyqxmd.com/read/28929602/chromium-supplementation-in-women-with-polycystic-ovary-syndrome-systematic-review-and-meta-analysis
#16
Xiao-Lei Tang, Zheng Sun, Lei Gong
AIM: Increasing evidence has suggested that chromium supplementation may improve the clinical symptoms of polycystic ovary syndrome (PCOS), yet the results have been inconsistent. To derive a more precise estimation of the efficacy of chromium, a meta-analysis was performed. METHODS: Studies published in PubMed, EMBASE and the Cochrane Library up to April 2017 were retrieved. Standardized mean differences (SMD) with 95%CI were calculated for net changes using random-effects or fixed-effects models...
September 20, 2017: Journal of Obstetrics and Gynaecology Research
https://www.readbyqxmd.com/read/28928405/nanopore-extended-field-effect-transistor-for-selective-single-molecule-biosensing
#17
Ren Ren, Yanjun Zhang, Binoy Paulose Nadappuram, Bernice Akpinar, David Klenerman, Aleksandar P Ivanov, Joshua B Edel, Yuri Korchev
There has been a significant drive to deliver nanotechnological solutions to biosensing, yet there remains an unmet need in the development of biosensors that are affordable, integrated, fast, capable of multiplexed detection, and offer high selectivity for trace analyte detection in biological fluids. Herein, some of these challenges are addressed by designing a new class of nanoscale sensors dubbed nanopore extended field-effect transistor (nexFET) that combine the advantages of nanopore single-molecule sensing, field-effect transistors, and recognition chemistry...
September 19, 2017: Nature Communications
https://www.readbyqxmd.com/read/28927313/efficacy-of-probiotic-supplement-for-gestational-diabetes-mellitus-a-systematic-review-and-meta-analysis
#18
Jiajia Pan, Qiangwei Pan, Yumei Chen, Hongping Zhang, Xiaodong Zheng
BACKGROUND: Probiotic supplement might be beneficial for gestational diabetes mellitus. However, the results remained controversial. We conducted a systematic review and meta-analysis to explore the efficacy of probiotic supplement in gestational diabetes mellitus. METHODS: PubMed, Embase, Web of science, EBSCO, and Cochrane Library databases were systematically searched. Randomized controlled trials (RCTs) assessing the effect of probiotic supplement in gestational diabetes mellitus were included...
September 19, 2017: Journal of Maternal-fetal & Neonatal Medicine
https://www.readbyqxmd.com/read/28927302/igfbp-1-and-igf-i-as-markers-for-advanced-fibrosis-in-nafld-a-pilot-study
#19
Hannes Hagström, Per Stål, Rolf Hultcrantz, Kerstin Brismar, Ishrath Ansurudeen
BACKGROUND AND AIMS: Non-alcoholic fatty liver disease (NAFLD) is the most common liver disease globally. Advanced fibrosis (stage 3-4) is the most robust marker for future mortality, but diagnosis requires liver biopsy. Current non-invasive scoring systems aimed to identify advanced fibrosis are imperfect. Insulin-like growth factor I (IGF-I) and its binding protein IGFBP-1 are liver derived proteins, that are involved in various liver disorders. The aim of this study was to examine the possible association between advanced fibrosis and IGF-I and IGFBP-1 in NAFLD...
September 19, 2017: Scandinavian Journal of Gastroenterology
https://www.readbyqxmd.com/read/28926842/pharmacotherapy-with-thymoquinone-improved-pancreatic-%C3%AE-cell-integrity-and-functional-activity-enhanced-islets-revascularization-and-alleviated-metabolic-and-hepato-renal-disturbances-in-streptozotocin-induced-diabetes-in-rats
#20
Adel Galal El-Shemi, Osama Adnan Kensara, Aiman Alsaegh, Mohammed Hasan Mukhtar
AIMS: This study is aimed at evaluating the antidiabetic effects of thymoquinone (TQ) on streptozotocin (STZ)-induced diabetes in rats, and exploring the possible underlying mechanisms. METHODS: Diabetes was induced in adult male Wistar rats by intraperitoneal injection of freshly prepared STZ (65 mg/kg). After disease induction, 42 rats were equally assigned to: controls, STZ-diabetic group, and STZ-diabetic group treated with oral TQ (35 mg/kg/day) for 5 weeks...
September 20, 2017: Pharmacology
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