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https://www.readbyqxmd.com/read/28108673/plasma-microrna-21-expression-an-indicator-for-the-severity-of-type-2-diabetes-with-diabetic-retinopathy
#1
Qi Jiang, Xue-Man Lv, Yi Yuan, Ling Wang
OBJECTIVE: To investigate the roles of plasma microRNA-21 (miR-21) in the pathogenic process of type 2 diabetes (T2D) with diabetic retinopathy (DR). METHODS: T2D patients included patients without DR (NDR group), patients with non-proliferative/background DR (BDR group) and patients with proliferative DR (PDR group). Healthy individuals served as control group. Fasting plasma glucose (FPG), glycosylated hemoglobin (HbA1c), triglycerides (TG), total cholesterol (TC), urine creatinine (Cr), fasting blood glucose (FBG), blood urea nitrogen (BUN), low-density cholesterol (LDL-C), fasting insulin (FINS) and plasma miR-21 expression were measured...
January 20, 2017: Bioscience Reports
https://www.readbyqxmd.com/read/28108291/neuroendocrine-signaling-modulates-specific-neural-networks-relevant-to-migraine
#2
Margarida Martins-Oliveira, Simon Akerman, Philip R Holland, Jan R Hoffmann, Isaura Tavares, Peter J Goadsby
Migraine is a disabling brain disorder involving abnormal trigeminovascular activation and sensitization. Fasting or skipping meals is considered a migraine trigger and altered fasting glucose and insulin levels have been observed in migraineurs. Therefore peptides involved in appetite and glucose regulation including insulin, glucagon and leptin could potentially influence migraine neurobiology. We aimed to determine the effect of insulin (10U·kg(-1)), glucagon (100μg·200μl(-1)) and leptin (0.3, 1 and 3mg·kg(-1)) signaling on trigeminovascular nociceptive processing at the level of the trigeminocervical-complex and hypothalamus...
January 17, 2017: Neurobiology of Disease
https://www.readbyqxmd.com/read/28107806/cognitive-function-and-insulin-resistance-in-elderly-patients-with-type-2-diabetes
#3
Lina Ma, Yun Li
PURPOSE: To explore the relationship between cognitive impairment and insulin resistance (IR) in elderly patients with type-2 diabetes mellitus. MATERIALS AND METHODS: Two hundred and twelve elderly patients with type-2 diabetes were enrolled in this study and assigned into either the cognitive impairment group (n = 100) or the normal cognitive group (n = 112). Gender, age, education, body mass index (BMI), total cholesterol, triglyceride, low-density lipoprotein cholesterol, creatinine (Cr), fasting plasma glucose, fasting insulin (FINS) and homeostasis model of assessment for IR index (HOMA-IR) were compared between the two groups...
January 20, 2017: Neurological Research
https://www.readbyqxmd.com/read/28107503/osteopontin-affects-insulin-vesicle-localization-and-ca2-homeostasis-in-pancreatic-beta-cells-from-female-mice
#4
Anna Wendt, Inês G Mollet, Anki Knutsson, Victor S Bolmgren, Anna Hultgårdh-Nilsson, Maria F Gomez, Lena Eliasson
Type 2 diabetic patients suffer from insulin resistance and reduced insulin secretion. Osteopontin (OPN), a versatile protein expressed in several tissues throughout the body including the islets of Langerhans, has previously been implicated in the development of insulin resistance. Here we have investigated the role of OPN in insulin secretion using an OPN knock out mouse model (OPN-/-). Ultra-structural analyzes of islets from OPN-/- and WT mice indicated weaker cell-cell connections between the islet cells in the OPN-/- mouse compared to WT...
2017: PloS One
https://www.readbyqxmd.com/read/28107465/lead-exposure-induces-weight-gain-in-adult-rats-accompanied-by-dna-hypermethylation
#5
Honglin Sun, Ningjian Wang, Xiaomin Nie, Li Zhao, Qin Li, Zhen Cang, Chi Chen, Meng Lu, Jing Cheng, Hualing Zhai, Fangzhen Xia, Lin Ye, Yingli Lu
OBJECTIVE: Previous studies have revealed the association of lead (Pb) exposure with obesity. DNA methylation alteration has been suggested to be one of the regulatory mechanisms of obesity. We aimed to explore whether Pb exposure is related with weight gain and DNA methylation alteration. METHODS: Male adult 8 week Wistar rats were divided into 5 groups: the normal chow diet (NCD); the NCD+0.05%Pb; the NCD+0.15%Pb; the NCD+0.45%Pb and the high fat diet. Rats were exposed to different dosages of Pb through drinking water for 21 weeks...
2017: PloS One
https://www.readbyqxmd.com/read/28106818/potential-benefits-and-harms-of-intermittent-energy-restriction-and-intermittent-fasting-amongst-obese-overweight-and-normal-weight-subjects-a-narrative-review-of-human-and-animal-evidence
#6
REVIEW
Michelle Harvie, Anthony Howell
Intermittent energy restriction (IER) has become popular as a means of weight control amongst people who are overweight and obese, and is also undertaken by normal weight people hoping spells of marked energy restriction will optimise their health. This review summarises randomised comparisons of intermittent and isoenergetic continuous energy restriction for weight loss to manage overweight and obesity. It also summarises the potential beneficial or adverse effects of IER on body composition, adipose stores and metabolic effects from human studies, including studies amongst normal weight subjects and relevant animal experimentation...
January 19, 2017: Behavioral Sciences
https://www.readbyqxmd.com/read/28105546/gestational-diabetes-mellitus-gdm-relationship-between-higher-cutoff-values-for-100%C3%A2-g-oral-glucose-tolerance-test-ogtt-and-insulin-requirement-during-pregnancy
#7
Jessica Ares, Alicia Martín-Nieto, Lucía Díaz-Naya, Teresa Tartón, Teresa Menéndez-Prada, Cecilia S Ragnarsson, Elías Delgado-Álvarez, Edelmiro Menéndez-Torre
Objectives To study if there is any relationship about higher cutoff values for 100 g oral glucose tolerance test and the need for insulin in women diagnosed with gestational diabetes. Materials and Methods This is a retrospective population-based study of 201 women diagnosed with Gestational Diabetes Mellitus (GDM) between January 2012 and June 2014 in the area of Oviedo, Asturias, Spain. According to diagnostic criteria recommended by GEDE, NDDG, gestational diabetes is diagnosed if two or more plasma glucose levels meet or exceed the following threshold: fasting glucose of 105 mg/dl, 1-h 190 mg/dl, 2-h 165 mg/dl, or 3-h 145 mg/dl...
January 19, 2017: Maternal and Child Health Journal
https://www.readbyqxmd.com/read/28105114/in-utero-exposure-to-di-2-ethylhexyl-phthalate-induces-metabolic-disorder-and-increases-fat-accumulation-in-visceral-depots-of-c57bl-6j-mice-offspring
#8
Hailun Gu, Yali Liu, Wei Wang, Lifeng Ding, Weiping Teng, Li Liu
Excessive visceral fat accumulation is associated with metabolic disorders. Di-(2-ethylhexyl) phthalate (DEHP), a candidate environmental obesogen, affects lipid metabolism and adipogenesis. Perinatal exposure to DEHP may be associated with metabolic disorders of dams and offspring. The aim of the present study was to explore the effects of exposure of pregnant dams to DEHP on the metabolism and fat distribution of their offspring, and to determine the mechanisms for these effects. Pregnant C57BL/6J mice were administered DEHP via gavage (0...
December 2016: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/28104918/triglycerides-glucose-index-is-a-useful-surrogate-marker-of-insulin-resistance-among-adolescents
#9
B Kang, Y Yang, E Y Lee, H K Yang, H-S Kim, S-Y Lim, J-H Lee, S-S Lee, B-K Suh, K-H Yoon
OBJECTIVES: Our aim was to investigate the association between the triglycerides/glucose index (TyG index) and the homeostasis model assessment-estimated insulin resistance (HOMA-IR) in the prediction of insulin resistance (IR) among adolescents. METHODS: We conducted a cross-sectional study among 221 Korean adolescents (168 males and 53 females aged 9-13 years) from May to June 2014 in Chung-ju city. The TyG index was calculated as ln [triglycerides (mg/dl) × fasting glucose (mg/dl)/2]...
January 20, 2017: International Journal of Obesity: Journal of the International Association for the Study of Obesity
https://www.readbyqxmd.com/read/28104753/the-effect-of-adrenal-medullectomy-on-metabolic-responses-to-chronic-intermittent-hypoxia-in-the-frequently-sampled-intravenous-glucose-tolerance-test
#10
Mi-Kyung Shin, Woobum Han, Hoon Joo, Shannon Bevans-Fonti, Masakazu Shiota, Darko Stefanovski, Vsevolod Y Polotsky
Obstructive sleep apnea is associated with type 2 diabetes. We have previously developed a mouse model of intermittent hypoxia (IH) mimicking oxyhemoglobin desaturations in patients with sleep apnea and have shown that IH increases fasting glucose, hepatic glucose output, and plasma catecholamines. We hypothesize that adrenal medulla modulates glucose responses to IH, and that such responses can be prevented by adrenal medullectomy. We performed adrenal medullectomy or sham surgery in lean C57BL/6J mice, which were exposed to IH or intermittent air (control) for 4 weeks followed by the frequently sampled intravenous glucose tolerance test (FSIVGTT) in unanesthetized unrestrained animals...
January 19, 2017: Journal of Applied Physiology
https://www.readbyqxmd.com/read/28104241/cardiovascular-and-metabolic-profiles-of-offspring-conceived-by-assisted-reproductive-technologies-a-systematic-review-and-meta-analysis
#11
Xiao-Yan Guo, Xin-Mei Liu, Li Jin, Ting-Ting Wang, Kamran Ullah, Jian-Zhong Sheng, He-Feng Huang
OBJECTIVE: To evaluate cardiovascular and metabolic features of offspring conceived by in vitro fertilization/intracytoplasmic sperm injection (IVF-ICSI). DESIGN: Literature review and meta-analysis. SETTING: Not applicable. PATIENT(S): Offspring from IVF-ICSI versus natural conception. INTERVENTION(S): None. MAIN OUTCOME MEASURE(S): Systolic and diastolic blood pressure (SBP and DBP), cardiovascular function, body mass index (BMI), and lipid and glucose profiles...
January 16, 2017: Fertility and Sterility
https://www.readbyqxmd.com/read/28102091/obesity-related-insulin-resistance-in-adolescents-a-systematic-review-and-meta-analysis-of-observational-studies
#12
P Thota, F R Perez-Lopez, V A Benites-Zapata, V Pasupuleti, A V Hernandez
Insulin resistance is common among obese adolescents; however, the extent of this problem is not clear. We conducted a systematic review of PubMed-Medline, CINAHL, The Web of Science, EMBASE and Scopus for observational studies evaluating components defining insulin resistance (insulin, C-peptide and homeostatic model assessment-insulin resistance [HOMA-IR]) in obese adolescents (12-18 years) versus non-obese adolescents. Our systematic review and meta-analysis followed the PRISMA guidelines. Data were combined using a random-effects model and summary statistics were calculated using the mean differences (MDs)...
January 19, 2017: Gynecological Endocrinology
https://www.readbyqxmd.com/read/28101489/correction-of-hypothyroidism-leads-to-change-in-lean-body-mass-without-altering-insulin-resistance
#13
Sangeetha Sirigiri, Suresh Vaikkakara, Alok Sachan, P V L N Srinivasarao, Sunil Epuri, Sailaja Anantarapu, Arun Mukka, Srinivasa Rao Chokkapu, Ashok Venkatanarasu, Ravi Poojari
BACKGROUND: Hypothyroidism is associated with insulin resistance, dyslipidemia, and abnormal body composition. This study assessed changes in body composition and insulin resistance after thyroxine (T4) replacement in overt hypothyroidism. METHODS: In this prospective longitudinal study carried out in a tertiary care center, adult nondiabetic patients with overt hypothyroidism were rendered euthyroid on T4. Anthropometry including skinfold thickness (SFT) at the triceps and subscapularis was recorded...
December 2016: European Thyroid Journal
https://www.readbyqxmd.com/read/28101317/corticotropin-releasing-factor-overexpression-in-mice-abrogates-sex-differences-in-body-weight-visceral-fat-and-food-intake-response-to-a-fast-and-alters-levels-of-feeding-regulatory-hormones
#14
Lixin Wang, Miriam Goebel-Stengel, Pu-Qing Yuan, Andreas Stengel, Yvette Taché
BACKGROUND: Corticotropin-releasing factor overexpressing (CRF-OE) male mice showed an inhibited feeding response to a fast, and lower plasma acyl ghrelin and Fos expression in the arcuate nucleus compared to wild-type (WT) mice. We investigated whether hormones and hypothalamic feeding signals are impaired in CRF-OE mice and the influence of sex. METHODS: Male and female CRF-OE mice and WT littermates (4-6 months old) fed ad libitum or overnight fasted were assessed for body, adrenal glands and perigonadal fat weights, food intake, plasma hormones, blood glucose, and mRNA hypothalamic signals...
2017: Biology of Sex Differences
https://www.readbyqxmd.com/read/28100871/in-vivo-direct-reprogramming-of-liver-cells-to-insulin-producing-cells-by-virus-free-overexpression-of-defined-factors
#15
Xiao-Fei Yang, Li-Wei Ren, Lu Yang, Chun-Yan Deng, Fu-Rong Li
Direct reprogramming of autologous cells from diabetes patients to insulin producing cells is a new method for pancreatic cell replacement therapy. At present, transdifferentiation among mature cells is achieved mainly by introducing foreign genes into the starting tissue with viral vector, but there are potentical safety problems. In the present study, we delivered plasmids carrying Pdx1, Neurog3 and MafA genes (PNM) into mouse hepatocytes by hydrodynamics tail vein injection, investigated islet β cells markers in transfected cells from protein and mRNA level, and then observed the long-term control of blood glucose in diabetic mice...
January 18, 2017: Endocrine Journal
https://www.readbyqxmd.com/read/28100772/de-novo-sphingolipid-biosynthesis-is-required-for-adipocyte-survival-and-metabolic-homeostasis
#16
Aikaterini Alexaki, Benjamin A Clarke, Oksana Gavrilova, Yinyan Ma, Hongling Zhu, Xinran Ma, Lingyan Xu, Galina Tuymetova, Bridget C Larman, Maria L Allende, Teresa M Dunn, Richard L Proia
Sphingolipids are a diverse class of essential cellular lipids that function as structural membrane components and as signaling molecules. Cells acquire sphingolipids by both de novo biosynthesis and recycling of exogenous sphingolipids. The individual importance of these pathways for the generation of essential sphingolipids in differentiated cells is not well understood. To investigate the requirement for de novo sphingolipid biosynthesis in adipocytes, a cell type with highly regulated lipid metabolism, we generated mice with an adipocyte-specific deletion of Sptlc1 Sptlc1 is an obligate subunit of serine palmitoyltransferase, the enzyme responsible for the first and rate-limiting step of de novo sphingolipid biosynthesis...
January 18, 2017: Journal of Biological Chemistry
https://www.readbyqxmd.com/read/28099755/comparing-effects-of-insulin-analogues-and-human-insulin-on-nocturnal-glycaemia-in-hypoglycaemia-prone-people-with-type-1-diabetes
#17
P L Kristensen, L Tarnow, C Bay, K Nørgaard, T Jensen, H-H Parving, H Perrild, H Beck-Nielsen, J S Christiansen, B Thorsteinsson, U Pedersen-Bjergaard
AIMS: To assess the difference between analogue and human insulin with regard to nocturnal glucose profiles and risk of hypoglycaemia in people with recurrent severe hypoglycaemia. METHODS: A total of 72 people [46 men, mean ± sd age 54 ± 12 years, mean ± sd HbA1c 65 ± 12 mmol/mol (8.1 ± 1.1%), mean ± sd duration of diabetes 30 ± 14 years], who participated in a 2-year randomized, crossover trial of basal-bolus therapy with insulin detemir/insulin aspart or human NPH insulin/human regular insulin (the HypoAna trial) were studied for 2 nights during each treatment...
January 18, 2017: Diabetic Medicine: a Journal of the British Diabetic Association
https://www.readbyqxmd.com/read/28099042/sex-differences-in-associations-between-insulin-resistance-heart-rate-variability-and-arterial-stiffness-in-healthy-women-and-men-a-physiology-study
#18
Luke Anthony Rannelli, Jennifer M MacRae, Michelle C Mann, Sharanya Ramesh, Brenda R Hemmelgarn, Doreen Rabi, Darlene Y Sola, Sofia B Ahmed
Diabetes confers greater cardiovascular risk to women than to men. Whether insulin-resistance-mediated risk extends to the healthy population is unknown. Measures of insulin resistance (fasting insulin, homeostatic model assessment, hemoglobin A1c, quantitative insulin sensitivity check index, glucose) were determined in 48 (56% female) healthy subjects. Heart rate variability (HRV) was calculated by spectral power analysis and arterial stiffness was determined using noninvasive applanation tonometry. Both were measured at baseline and in response to angiotensin II infusion...
November 2, 2016: Canadian Journal of Physiology and Pharmacology
https://www.readbyqxmd.com/read/28098910/hydrogen-rich-saline-improves-non%C3%A2-alcoholic-fatty-liver-disease-by-alleviating-oxidative-stress-and-activating-hepatic-ppar%C3%AE-and-ppar%C3%AE
#19
Xiao Zhai, Xiao Chen, Jiancan Lu, Yaping Zhang, Xuejun Sun, Qin Huang, Qijin Wang
Non-alcoholic fatty liver disease (NAFLD) comprises a range of liver diseases, between steatosis and non‑alcoholic steatohepatitis and liver cirrhosis, which are closely associated with diabetes mellitus. Previous studies have indicated that oxidative stress is a key factor in the development of NAFLD. Molecular hydrogen (H2) may ameliorate oxidative stress injuries by selectively neutralizing peroxynitrite and hydroxyl radicals. The present study evaluated the effects of H2 on NAFLD in rats and concluded that H2‑rich saline had significant therapeutic effects on NAFLD induced by hyperglycemia and hyperlipidemia, as demonstrated by hematoxylin and eosin and terminal deoxynucleotidyl-transferase‑mediated dUTP nick end labeling staining...
January 13, 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/28098516/germacrone-attenuates-hyperlipidemia-and-improves-lipid-metabolism-in-high-fat-diet-induced-obese-c57bl-6j-mice
#20
Yuan-Ri Guo, Se-Young Choung
We previously showed that Aster spathulifolius Maxim extract (ASE) reduced body weight gain and serum and liver lipid levels and significantly suppressed serum insulin and leptin concentrations in high-fat diet (HFD)-induced obese rats. Germacrone (GM) was identified as a potent bioactive constituent of ASE. In this study, we hypothesized that GM can attenuate hyperlipidemia by alleviating fatty acid (FA) synthesis/uptake and improve lipid metabolism by stimulating FA β-oxidation in HFD-induced obese C57BL/6J mice...
January 2017: Journal of Medicinal Food
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