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https://www.readbyqxmd.com/read/28528355/increased-retinol-free-rbp4-contributes-to-insulin-resistance-in-gestational-diabetes-mellitus
#1
Yanmin Chen, Ping Lv, Mengkai Du, Zhaoxia Liang, Menglin Zhou, Danqing Chen
PURPOSE: Retinol-binding protein 4 (RBP4) is a circulating retinol transporter that is strongly associated with insulin resistance. The aim of this study was to evaluate the RBP4 and retinol level in rat model of gestational diabetes mellitus and the relationship between retinol-free RBP4 (apo-RBP4), retinol-bound RBP4 (holo-RBP4) and insulin resistance. METHODS: Pregnant rats were administered streptozotocin to induce diabetes. The RBP4 and retinol levels were evaluated in GDM and normal pregnant rats...
May 20, 2017: Archives of Gynecology and Obstetrics
https://www.readbyqxmd.com/read/28528338/chronic-glibenclamide-treatment-attenuates-walker-256-tumour-growth-in-prediabetic-obese-rats
#2
Claudinéia Conationi da Silva Franco, Carina Previate, Kátia Gama de Barros Machado, Silvano Piovan, Rosiane Aparecida Miranda, Kelly Valério Prates, Veridiana Mota Moreira, Júlio Cezar de Oliveira, Luiz Felipe Barella, Rodrigo Mello Gomes, Flávio Andrade Francisco, Isabela Peixoto Martins, Audrei Pavanello, Tatiane Aparecida Ribeiro, Laize Peron Tófolo, Ananda Malta, Aline Amenencia de Souza, Vander Silva Alves, Sandra da Silva Silveira, Maria Raquel Marçal Natali, Jean Carlos Fernando Besson, Hely de Morais, Helenir Medri de Souza, Juliane Rocha de Sant Anna, Marialba Avezum Alves de Castro Prado, Paulo Cezar de Freitas Mathias
BACKGROUND/AIMS: The sulphonylurea glibenclamide (Gli) is widely used in the treatment of type 2 diabetes. In addition to its antidiabetic effects, low incidences of certain types of cancer have been observed in Gli-treated diabetic patients. However, the mechanisms underlying this observation remain unclear. The aim of the present work was to evaluate whether obese adult rats that were chronically treated with an antidiabetic drug, glibenclamide, exhibit resistance to rodent breast carcinoma growth...
May 11, 2017: Cellular Physiology and Biochemistry
https://www.readbyqxmd.com/read/28528294/isoliquiritigenin-reduces-oxidative-damage-and-alleviates-mitochondrial-impairment-by-sirt1-activation-in-experimental-diabetic-neuropathy
#3
Veera Ganesh Yerra, Anil Kumar Kalvala, Ashutosh Kumar
Sirtuin (SIRT1) inactivation underlies the pathogenesis of insulin resistance and hyperglycaemia-associated vascular complications, but its role in diabetic neuropathy (DN) has not been yet explored. We have evaluated hyperglycaemia-induced alteration of SIRT1 signalling and the effect of isoliquiritigenin (ILQ) on SIRT1-directed AMP kinase (AMPK) and peroxisome proliferator-activated receptor gamma coactivator 1-alpha (PGC-1α) signalling in peripheral nerves of streptozotocin (STZ) (55 mg/kg, ip)-induced diabetic rats and in high glucose (30 mM)-exposed neuro2a (N2A) cells...
May 11, 2017: Journal of Nutritional Biochemistry
https://www.readbyqxmd.com/read/28528109/the-hypoglycemic-effects-of-guava-leaf-psidium-guajava-l-extract-are-associated-with-improving-endothelial-dysfunction-in-mice-with-diet-induced-obesity
#4
Elixabet Díaz-de-Cerio, Alba Rodríguez-Nogales, Francesca Algieri, Miguel Romero, Vito Verardo, Antonio Segura-Carretero, Juan Duarte, Julio Galvez
Obesity is associated with a low-grade inflammatory status that affects vascular function. Previous studies have reported the beneficial effects of Psidium guajava L. (guava) on diabetes. Here we evaluate the how guava leaf extract at the dose of 5 mg/kg, affects vascular dysfunction in obese mice fed a high-fat diet for 7 weeks. Extract intake did not alter weight over time, although it reduced glycemia and insulin resistance, improving the serum lipid profile in obese mice. Additionally, guava leaf extract reversed the endothelial dysfunction found in obese mice in terms of endothelium- and NO (nitric oxide)-dependent vasodilatation induced by acetylcholine in aortic rings...
June 2017: Food Research International
https://www.readbyqxmd.com/read/28527877/esculetin-ameliorates-hepatic-fibrosis-in-high-fat-diet-induced-non-alcoholic-fatty-liver-disease-by-regulation-of-foxo1-mediated-pathway
#5
Anuradha Pandey, Priyank Raj, Santosh Kumar Goru, Almesh Kadakol, Vajir Malek, Nisha Sharma, Anil Bhanudas Gaikwad
BACKGROUND: Non-alcoholic fatty liver disease (NAFLD), a chronic metabolic disorder is associated with oxidative stress, inflammation and fibrotic cascades. In this study, we aimed to examine the effects of Esculetin, a well-known anti-oxidant on TGF-β1 mediated liver fibrosis and FoxO1 activity. METHODS: A non-genetic murine model for NAFLD was developed by chronic high fat diet (HFD) (58% calories from fats) feeding in Wistar rats. The plasma biochemical parameters, liver function tests, oxidative stress, and histopathological alterations were assessed...
February 4, 2017: Pharmacological Reports: PR
https://www.readbyqxmd.com/read/28527530/intergenerational-impact-of-maternal-overnutrition-and-obesity-throughout-pregnancy-in-sheep-on-metabolic-syndrome-in-grandsons-and-granddaughters
#6
C L Pankey, M W Walton, J F Odhiambo, A M Smith, A B Ghnenis, P W Nathanielsz, S P Ford
We previously reported that maternal overnutrition and obesity (MO) throughout pregnancy and lactation in sheep (MOF0) decreases term fetal pancreatic β-cell numbers and increases perirenal adiposity producing hyperphagia, increased adiposity and insulin resistance in adult female offspring (MOF1) fed ad libitum. Pregnant female MOF1 exhibited increased blood glucose from mid to late gestation vs control F1 (CTRF1) though both groups ate only to NRC recommendations. MOF1 ewes delivered female offspring (F2) who like their MOF1 mothers exhibited increased abdominal adiposity and absent neonatal leptin surge...
April 22, 2017: Domestic Animal Endocrinology
https://www.readbyqxmd.com/read/28527304/additive-effect-of-non-alcoholic-fatty-liver-disease-on-the-development-of-diabetes-in-individuals-with-metabolic-syndrome
#7
Ji Cheol Bae, Soo Kyoung Kim, Ji Min Han, Sam Kwon, Da Young Lee, Jihyun Kim, Se Eun Park, Cheol-Young Park, Won-Young Lee, Ki-Won Oh, Sung-Woo Park, Eun Jung Rhee
INTRODUCTION: Non-alcoholic fatty liver disease (NAFLD) is considered as the hepatic manifestation of the metabolic syndrome (MetS), with insulin resistance as the common pathophysiology. In a current longitudinal cohort study, we evaluated the separate and combined effects of MetS and NAFLD on incident diabetes risk. METHODS: Participants were categorized into four groups on the basis of the presence of NAFLD and MetS at baseline (i.e., with NAFLD, with MetS, with both, or without either)...
May 5, 2017: Diabetes Research and Clinical Practice
https://www.readbyqxmd.com/read/28527212/apolipoprotein-e4-gender-body-mass-index-inflammation-insulin-resistance-and-air-pollution-interactions-recipe-for-alzheimer-s-disease-development-in-mexico-city-young-females
#8
Lilian Calderón-Garcidueñas, Suzanne M de la Monte
Given the epidemiological trends of increasing Alzheimer's disease (AD) and growing evidence that exposure and lifestyle factors contribute to AD risk and pathogenesis, attention should be paid to variables such as air pollution, in order to reduce rates of cognitive decline and dementia. Exposure to fine particulate matter (PM2.5) and ozone (O3) above the US EPA standards is associated with AD risk. Mexico City children experienced pre- and postnatal high exposures to PM2.5, O3, combustion-derived iron-rich nanoparticles, metals, polycyclic aromatic hydrocarbons, and endotoxins...
May 17, 2017: Journal of Alzheimer's Disease: JAD
https://www.readbyqxmd.com/read/28526994/adolescent-s-health-behaviors-and-risk-for-insulin-resistance-a-review-of-the-literature
#9
REVIEW
Jill L Kaar, Stacey L Simon, Sarah J Schmiege, Kristen J Nadeau, Megan M Kelsey
PURPOSE OF REVIEW: One-third of US adolescents are obese, and related comorbidities exist in this population. Preventing early indicators of these diseases, such as insulin resistance (IR), may impact future morbidity and mortality. Interventions to date have only focused on diet or exercise. Additional targets to prevent disease are needed. This paper reviews the evidence in adolescents examining multiple health behaviors that have been associated with IR. RECENT FINDINGS: Health behaviors (i...
July 2017: Current Diabetes Reports
https://www.readbyqxmd.com/read/28526870/time-course-responses-of-circulating-micrornas-to-three-resistance-training-protocols-in-healthy-young-men
#10
Shufang Cui, Biao Sun, Xin Yin, Xia Guo, Dingming Chao, Chunni Zhang, Chen-Yu Zhang, Xi Chen, Jizheng Ma
Circulating microRNAs (c-miRNAs) in human plasma have been described as a potential marker of exercise. The present study investigated the effects of three acute resistance training (RT) protocols on the time-course changes of the c-miRNAs profiles in young males. The subjects (n = 45) were randomly divided into three groups: muscular strength endurance (SE), muscular hypertrophy (MH) and maximum strength (MS). Venous blood samples were obtained before exercise and immediately, 1 h and 24 h after each RT protocol to assess the following biological parameters: c-miRNAs, anabolic and catabolic hormones, inflammatory cytokines and muscle damage markers...
May 19, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28526556/circulating-levels-of-cortistatin-are-correlated-with-metabolic-parameters-in-patients-with-newly-diagnosed-type-2-diabetes-mellitus
#11
Wenjia Chen, Yu Fu, Xinhua Yin, Yue Liu
Cortistatin (CST) is a recently discovered cyclic neuropeptide with multiple bioactive effects. The aim of this study was to investigate the relationship between plasma CST and various metabolic markers in patients with newly diagnosed type 2 diabetes mellitus (T2DM). For this study, 60 patients with newly diagnosed T2DM and 38 age- and gender-matched healthy controls were recruited. Fasting plasma glucose (FPG), serum insulin and hemoglobin A1c (HbA1c) levels and a blood lipid profile were obtained with commercially available diagnostic reagents...
May 16, 2017: Peptides
https://www.readbyqxmd.com/read/28526416/treatment-strategy-for-type-2-diabetes-with-obesity-focus-on-glucagon-like-peptide-1-receptor-agonists
#12
REVIEW
Qiuhe Ji
PURPOSE: The progressive nature of type 2 diabetes mellitus (T2DM) calls for step-wise intensification of therapy for maintaining normal glycemic levels and lowering cardiovascular (CV) risk. Because obesity is a prominent risk factor and comorbidity of T2DM, it further elevates the CV risk in T2DM. Therefore, it is vital to manage weight, obesity, and glycemic parameters for effective T2DM management. Few oral antidiabetic drugs (sulfonylureas and thiazolidinediones) and insulin are not suitable for obese patients with T2DM because these drugs cause weight gain...
May 16, 2017: Clinical Therapeutics
https://www.readbyqxmd.com/read/28526415/lnk-deficiency-aggregates-palmitate-induced-preadipocyte-apoptosis
#13
Jie-Yi Du, Chen-Chen Jin, Guo-Hao Wang, Xiong-Qing Huang, Jian-Ding Cheng, Xue-Jun Wen, Xiao-Miao Zhao, Guan-Lei Wang
LNK (SH2B3) is an intracellular adaptor protein that negatively regulates cellular proliferation or self-renewal of hematopoietic stem cells and some other progenitor cells. LNK is also recognized as a key regulator of insulin resistance and inflammatory responses in several tissues and organs. It is unknown the function of LNK in adipose tissue. We previously demonstrated that type 2 diabetes mellitus (T2DM) mouse model had elevated serum free fatty acids (FFAs) levels and increased preadipocyte apoptosis in visceral fat tissue, showing the occurrence of lipotoxicity...
May 16, 2017: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/28526383/effect-of-magnesium-supplementation-on-insulin-resistance-in-humans-a-systematic-review
#14
REVIEW
Jennifer Beatriz Silva Morais, Juliana Soares Severo, Geórgia Rosa Reis de Alencar, Ana Raquel Soares de Oliveira, Kyria Jayanne Clímaco Cruz, Dilina do Nascimento Marreiro, Betânia de Jesus E Silva de Almendra Freitas, Cecília Maria Resende de Carvalho, Maria do Carmo de Carvalho E Martins, Karoline de Macedo Gonçalves Frota
OBJECTIVES: Recent studies have demonstrated that minerals play a role in glucose metabolism disorders in humans. Magnesium, in particular, is an extensively studied mineral that has been shown to function in the management of hyperglycemia, hyperinsulinemia, and insulin resistance (IR) action. The aim of this study was to investigate the effect of magnesium supplementation on IR in humans via systematic review of the available clinical trials. METHODS: This review was conducted in accordance with Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) recommendations...
June 2017: Nutrition
https://www.readbyqxmd.com/read/28526378/association-between-prepregnancy-obesity-and-metabolic-risk-in-chilean-premenopausal-women-10%C3%A2-y-postpartum
#15
Maria Luisa Garmendia, Carolina Zamudio, Marcela Araya, Juliana Kain
OBJECTIVES: One of every four pregnant women in Chile is obese. Gestational obesity is associated with maternal metabolic complications in pregnancy (e.g., gestational diabetes, preeclampsia), but to our knowledge, there is little evidence on relationships with future metabolic risk. The aim of this study was to evaluate the association between prepregnancy obesity (prepregnancy body mass index ≥30 kg/m(2)) or excessive gestational weight gain (GWG; according to the 2009 recommendations from the Institute of Medicine), and maternal metabolic complications 10 y postpartum in premenopausal Chilean women...
June 2017: Nutrition
https://www.readbyqxmd.com/read/28526377/orange-juice-allied-to-a-reduced-calorie-diet-results-in-weight-loss-and-ameliorates-obesity-related-biomarkers-a-randomized-controlled-trial
#16
Carolina Ribeiro, Grace Dourado, Thais Cesar
OBJECTIVE: Assumptions have linked orange juice (OJ) consumption with weight gain and adverse effects on health due to its sugar content; however, epidemiologic studies have not shown increased risk for overweight or obesity with the consumption of 100% OJ. The aim of this study was to verify whether the combination of a reduced-calorie diet (RCD) and 100% OJ contribute to weight loss, promote changes in glucose and lipid metabolism, and improve diet quality in obese individuals. METHODS: A randomized controlled trial with 78 obese patients (age 36 ± 1 y, body mass index [BMI] 33 ± 3 kg/m(2)) were enrolled in two groups: Individuals in the OJ group submitted to an RCD that included OJ (500 mL/d), and individuals in the control group submitted to an RCD without OJ...
June 2017: Nutrition
https://www.readbyqxmd.com/read/28526321/effects-of-dehp-and-its-metabolite-mehp-on-insulin-signalling-and-proteins-involved-in-glut4-translocation-in-cultured-l6-myotubes
#17
Mangala Priya Viswanathan, Vigneswari Mullainadhan, Mayilvanan Chinnaiyan, Balasubramanian Karundevi
Di-(2-ethylhexyl)phthalate (DEHP) is the plasticizer used in variety of medical and consumer products to impart structural flexibility. DEHP and its primary metabolite mono-(2-ethyl hexyl)phthalate (MEHP) posed a considerable interest because of their contribution to insulin resistance, type-2 diabetes and obesity. Experimental and epidemiological data have shown that DEHP affects blood glucose homeostasis. However, direct effect of DEHP and its metabolite MEHP on insulin signal transduction and glucose transporter 4 (GLUT4) translocation remain obscure...
May 16, 2017: Toxicology
https://www.readbyqxmd.com/read/28526186/cardiovascular-protection-in-the-treatment-of-type-2-diabetes-a-review-of-clinical-trial-results-across-drug-classes
#18
Francesco Paneni, Thomas F Lüscher
Patients with type 2 diabetes (T2DM) have a significantly higher risk of developing cardiovascular disease (CVD)-namely myocardial infarction, heart failure, and stroke. Despite clear advances in the prevention and treatment of CVD, the impact of T2DM on CVD outcome remains high and continues to escalate. Available evidence indicates that the risk of macrovascular complications increases with the severity of hyperglycemia, thus suggesting that the relation between metabolic disturbances and vascular damage is approximately linear...
May 15, 2017: American Journal of Medicine
https://www.readbyqxmd.com/read/28525998/androsterone-glucuronide-to-dehydroepiandrosterone-sulphate-ratio-is-discriminatory-for-obese-caucasian-women-with-polycystic-ovary-syndrome
#19
Li-Wei Cho, Thozhukat Sathyapalan, Eric S Kilpatrick, Brian G Keevil, Adrian G Miller, Anne M Coady, Lina Ahmed, Stephen L Atkin
BACKGROUND: Androsterone glucuronide (ADTG) concentrations have been suggested as a marker of the effects of androgens at the target tissue level. As the mechanism for hyperandrogenemia in obese and nonobese polycystic ovary syndrome (PCOS) may differ, this study compared the different androgen parameters in non-obese compared to obese women with PCOS, and in normal subjects. METHODS: Eleven non-obese and 14 obese women with PCOS were recruited and compared to 11 control women without PCOS...
May 19, 2017: BMC Endocrine Disorders
https://www.readbyqxmd.com/read/28525987/genetic-correlation-of-the-plasma-lipidome-with-type-2-diabetes-prediabetes-and-insulin-resistance-in-mexican-american-families
#20
Hemant Kulkarni, Manju Mamtani, Gerard Wong, Jacquelyn M Weir, Christopher K Barlow, Thomas D Dyer, Laura Almasy, Michael C Mahaney, Anthony G Comuzzie, Ravindranath Duggirala, Peter J Meikle, John Blangero, Joanne E Curran
BACKGROUND: Differential plasma concentrations of circulating lipid species are associated with pathogenesis of type 2 diabetes (T2D). Whether the wide inter-individual variability in the plasma lipidome contributes to the genetic basis of T2D is unknown. Here, we investigated the potential overlap in the genetic basis of the plasma lipidome and T2D-related traits. RESULTS: We used plasma lipidomic data (1202 pedigreed individuals, 319 lipid species representing 23 lipid classes) from San Antonio Family Heart Study in Mexican Americans...
May 19, 2017: BMC Genetics
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