keyword
MENU ▼
Read by QxMD icon Read
search

insulin resistance

keyword
https://www.readbyqxmd.com/read/29224246/circadian-peak-dopaminergic-activity-response-at-the-biological-clock-pacemaker-suprachiasmatic-nucleus-area-mediates-the-metabolic-responsiveness-to-a-high-fat-diet
#1
Shuqin Luo, Yahong Zhang, Michael Ezrokhi, Yang Li, Tsung-Huang Tsai, Anthony H Cincotta
Among vertebrate species of the major vertebrate classes in the wild, a seasonal rhythm of whole body fuel metabolism, oscillating from lean to obese condition, is a common biological phenomenon. This annual cycle is driven in part by annual changes in the circadian dopaminergic signaling at the suprachiasmatic nuclei (SCN), with diminution of circadian peak dopaminergic activity at the SCN facilitating development of the seasonal obese insulin resistant condition. The present study investigated whether such an ancient circadian dopamine-SCN activity system for expression of the seasonal obese, insulin resistant phenotype may be operative in animals made obese, insulin resistant by high fat feeding and if so whether reinstatement of the circadian dopaminergic peak at the SCN would be sufficient to reverse the adverse metabolic impact of the high fat diet without alteration of caloric intake...
December 10, 2017: Journal of Neuroendocrinology
https://www.readbyqxmd.com/read/29224189/acute-loss-of-adipose-tissue-derived-adiponectin-triggers-immediate-metabolic-deterioration-in-mice
#2
Jonathan Y Xia, Kai Sun, Chelsea Hepler, Alexandra L Ghaben, Rana K Gupta, Yu A An, William L Holland, Thomas S Morley, Andrew C Adams, Ruth Gordillo, Christine M Kusminski, Philipp E Scherer
AIM/HYPOTHESIS: Adiponectin (APN), a circulating hormone secreted by mature adipocytes, has been extensively studied because it has beneficial metabolic effects. While many studies have focused on the congenital loss of APN and its effects on systemic body glucose and lipid metabolism, little is known about the effects triggered by acute loss of APN in the adult mouse. We anticipated that genetically induced acute depletion of APN in adult mice would have a more profound effect on systemic metabolic health than congenital deletion of Adipoq, the gene encoding APN, with its associated potential for adaptive responses that may mask the phenotypes...
December 9, 2017: Diabetologia
https://www.readbyqxmd.com/read/29224111/prenatal-testosterone-programming-of-insulin-resistance-in-the%C3%A2-female-sheep
#3
Muraly Puttabyatappa, Vasantha Padmanabhan
Insulin resistance, a common feature of metabolic disorders such as obesity, nonalcoholic fatty liver disease, metabolic syndrome, and polycystic ovary syndrome, is a risk factor for development of diabetes. Because sex hormones orchestrate the establishment of sex-specific behavioral, reproductive, and metabolic differences, a role for them in the developmental origin of insulin resistance is also to be expected. Female sheep exposed to male levels of testosterone during fetal life serve as an excellent translational model for delineating programming of insulin resistance...
2017: Advances in Experimental Medicine and Biology
https://www.readbyqxmd.com/read/29224109/testosterone-therapy-and-glucose-homeostasis-in-men-with-testosterone-deficiency-hypogonadism
#4
Farid Saad
Since the early 1990s, it has been recognized that testosterone (T) levels are lower in men with type 2 diabetes mellitus (T2DM) compared with nondiabetic men (controls). Hypogonadism has been reported in approximately 50% of men with T2DM with robust correlations with measures of obesity, such as waist circumference and body mass index (BMI). In longitudinal studies, hypogonadism has been identified as a predictor of incident T2DM. Experimental withdrawal of T led to acute decreased insulin sensitivity, which can be reversed by normalization of T concentrations...
2017: Advances in Experimental Medicine and Biology
https://www.readbyqxmd.com/read/29224108/negative-impact-of-testosterone-deficiency-and-5%C3%AE-reductase-inhibitors-therapy-on-metabolic-and-sexual-function-in-men
#5
Abdulmaged M Traish
Androgens are steroid hormones with pleotropic and diverse biochemical and physiological functions, and androgen deficiency exerts a negative impact on human health. Testosterone (T) either directly or via its transformation into the more potent metabolite 5α-dihydrotestosterone (5α-DHT) or via aromatization into estradiol (E2) modulates important biochemical signaling pathways of human physiology and plays a critical role in the growth and/or maintenance of functions in a host of tissues and organs. T and 5α-DHT play an important role in regulating physiology of the muscle, adipose tissue, liver, bone, and central nervous system, as well as reproductive and sexual functions...
2017: Advances in Experimental Medicine and Biology
https://www.readbyqxmd.com/read/29224106/g-protein-coupled-estrogen-receptor-gper-and-sex-specific-metabolic-homeostasis
#6
Geetanjali Sharma, Eric R Prossnitz
Obesity and metabolic syndrome display disparate prevalence and regulation between males and females. Human, as well as rodent, females with regular menstrual/estrous cycles exhibit protection from weight gain and associated chronic diseases. These beneficial effects are predominantly attributed to the female hormone estrogen, specifically 17β-estradiol (E2). E2 exerts its actions via multiple receptors, nuclear and extranuclear estrogen receptor (ER) α and ERβ, and the G-protein-coupled estrogen receptor (GPER, previously termed GPR30)...
2017: Advances in Experimental Medicine and Biology
https://www.readbyqxmd.com/read/29224091/the-role-of-sex-and-sex-hormones-in-regulating-obesity-induced-inflammation
#7
Mita Varghese, Cameron Griffin, Kanakadurga Singer
Metabolic and non-metabolic complications due to obesity are becoming more prevalent, yet our understanding of the mechanisms driving these is not. This is due to individual risk factor variability making it difficult to predict disease outcomes such as diabetes and insulin resistance. Gender is a critical factor in obesity outcomes with women having more adiposity but reduced metabolic complications compared to men. The role of immune system activation during obesity is an emerging field that links adiposity to metabolic syndrome...
2017: Advances in Experimental Medicine and Biology
https://www.readbyqxmd.com/read/29224025/alterations-in-adiposity-and-glucose-homeostasis-in-adult-gasp-1-overexpressing-mice
#8
Luce Périè, Alexis Parenté, Fabienne Baraige, Laetitia Magnol, Véronique Blanquet
BACKGROUND/AIMS: Myostatin is known as a powerful negative regulator of muscle growth playing a key role in skeletal muscle homeostasis. Recent studies revealed that myostatin-deficient mice lead to an increase of insulin sensitivity, a decrease of adiposity and a resistance to obesity, showing that myostatin can also impact on metabolism. Thus, myostatin appeared as a potential therapeutic target to treat insulin resistance. METHODS: We generated transgenic mice overexpressing Gasp-1, a myostatin inhibitor...
December 8, 2017: Cellular Physiology and Biochemistry
https://www.readbyqxmd.com/read/29223281/human-studies-on-hypothalamo-pituitary-adrenal-hpa-axis
#9
REVIEW
Kamani Liyanarachchi, Richard Ross, Miguel Debono
The daily rhythm of the hypothalamo-pituitary-adrenal (HPA) axis is regulated by the central clock in the suprachiasmatic nucleus. Cortisol, a glucocorticoid, acts as a secondary messenger between the central clock and the peripheral tissues. Changes in clock time, as seen in shift workers, alters the HPA axis and results in metabolic disturbances associated with ill health. Depression, anorexia nervosa and obstructive sleep apnoea, are associated with cortisol rhythm phase shifts and increased cortisol exposure...
October 2017: Best Practice & Research. Clinical Endocrinology & Metabolism
https://www.readbyqxmd.com/read/29222967/stimulation-of-the-endogenous-incretin-glucose-dependent-insulinotropic-peptide-by-enteral-dextrose-improves-glucose-homeostasis-and-inflammation-in-murine-endotoxemia
#10
Faraaz Ali Shah, Srikanth Singamsetty, Lanping Guo, Byron W Chuan, Sherie McDonald, Bryce A Cooper, Brett J O'Donnell, Darko Stefanovski, Burton Wice, Yingze Zhang, Christopher P O'Donnell, Bryan J McVerry
Loss of glucose homeostasis during sepsis is associated with increased organ dysfunction and higher mortality. Novel therapeutic strategies to promote euglycemia in sepsis are needed. We have previously shown that early low-level intravenous (IV) dextrose suppresses pancreatic insulin secretion and induces insulin resistance in septic mice, resulting in profound hyperglycemia and worsened systemic inflammation. In this study, we hypothesized that administration of low-level dextrose via the enteral route would stimulate intestinal incretin hormone production, potentiate insulin secretion in a glucose-dependent manner, and thereby improve glycemic control in the acute phase of sepsis...
November 21, 2017: Translational Research: the Journal of Laboratory and Clinical Medicine
https://www.readbyqxmd.com/read/29222957/association-between-%C3%AE-cell-function-estimated-by-homa-%C3%AE-and-prognosis-of-nondiabetic-patients-with-ischaemic-stroke
#11
Mengyuan Zhou, Yuesong Pan, Jing Jing, Yongjun Wang, Xingquan Zhao, Liping Liu, Hao Li, Yilong Wang
BACKGROUND AND PURPOSE: Studies showed β-cell dysfunction was associated with increased risk of cardiovascular disease and subclinical carotid atherosclerosis. This study aimed to investigate the association between β-cell function and prognosis of nondiabetic patients with ischaemic stroke. METHODS: Ischaemic stroke patients without diabetes in the Abnormal Glucose Regulation in Patients with Acute Stroke across China registry were included in this analysis. Homeostasis assessment of β-cell function (HOMA-β), was performed and classified it into four groups according to quartiles...
December 9, 2017: European Journal of Neurology: the Official Journal of the European Federation of Neurological Societies
https://www.readbyqxmd.com/read/29222891/effects-of-preoperative-oral-carbohydrate-therapy-on-perioperative-glucose-metabolism-during-oral-maxillofacial-surgery-randomised-clinical-trial
#12
Kanako Esaki, Masanori Tsukamoto, Eiji Sakamoto, Takeshi Yokoyama
BACKGROUND AND OBJECTIVES: Preoperative oral carbohydrate therapy has been suggested to attenuate postoperative insulin resistance. The purpose of this study was to investigate the effect of a carbohydrate-rich beverage given preoperatively on intraoperative glucose metabolism. METHODS AND STUDY DESIGN: This study was a randomised, open-label, placebo-controlled trial. Patients undergoing oral-maxillofacial surgery were divided into two groups. In the glucose group, patients took glucose (50 g/278 mL, p...
2018: Asia Pacific Journal of Clinical Nutrition
https://www.readbyqxmd.com/read/29222858/obesity-lipid-profiles-and-oxidative-stress-in-children-after-liver-transplantation
#13
Piotr Czubkowski, Aldona Wierzbicka, Joanna Pawłowska, Irena Jankowska, Piotr Socha
PURPOSE: In adult liver transplant recipients, coronary artery disease and congestive heart failure are significant cause of morbidity and mortality. This may be attributed to the long-term immunosuppressive treatment, mostly with calcineurin inhibitors and steroids, which in long-term may be associated with hyperlipidemia, oxidative stress and cardiovascular complications. Since such data for children is sparse, the aim of this study was to assess the lipid and oxidative stress markers after pediatric liver transplantation (LTx)...
December 10, 2017: Acta Biochimica Polonica
https://www.readbyqxmd.com/read/29222456/bmps-as-new-insulin-sensitizers-enhanced-glucose-uptake-in-mature-3t3-l1-adipocytes-via-ppar%C3%AE-and-glut4-upregulation
#14
Isabelle Schreiber, Gina Dörpholz, Claus-Eric Ott, Bjørt Kragesteen, Nancy Schanze, Cory Thomas Lee, Josef Köhrle, Stefan Mundlos, Karen Ruschke, Petra Knaus
Insulin-resistance is the main cause of type 2 diabetes. Here we describe the identification and characterization of BMP2 and BMP6 as new insulin-sensitizing growth factors in mature adipocytes. We show that BMP2 and BMP6 lead to enhanced insulin-mediated glucose uptake in both insulin-sensitive and -insensitive adipocytes. We exclude a direct effect of BMP2 or BMP6 on translocation of GLUT4 to the plasma membrane and demonstrate that these BMPs increase GLUT4 protein levels equipotent to Rosiglitazone. BMPs induce expression of PPARγ as the crucial mediator for the insulin-sensitizing effect...
December 8, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29222417/insulin-in-motion-the-a6-a11-disulfide-bond-allosterically-modulates-structural-transitions-required-for-insulin-activity
#15
Bianca van Lierop, Shee Chee Ong, Alessia Belgi, Carlie Delaine, Sofianos Andrikopoulos, Naomi L Haworth, John G Menting, Michael C Lawrence, Andrea J Robinson, Briony E Forbes
The structural transitions required for insulin to activate its receptor and initiate regulation of glucose homeostasis are only partly understood. Here, using ring-closing metathesis, we substitute the A6-A11 disulfide bond of insulin with a rigid, non-reducible dicarba linkage, yielding two distinct stereo-isomers (cis and trans). Remarkably, only the cis isomer displays full insulin potency, rapidly lowering blood glucose in mice (even under insulin-resistant conditions). It also posseses reduced mitogenic activity in vitro...
December 8, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29222408/brain-insulin-resistance-impairs-hippocampal-synaptic-plasticity-and-memory-by-increasing-glua1-palmitoylation-through-foxo3a
#16
Matteo Spinelli, Salvatore Fusco, Marco Mainardi, Federico Scala, Francesca Natale, Rosita Lapenta, Andrea Mattera, Marco Rinaudo, Domenica Donatella Li Puma, Cristian Ripoli, Alfonso Grassi, Marcello D'Ascenzo, Claudio Grassi
High-fat diet (HFD) and metabolic diseases cause detrimental effects on hippocampal synaptic plasticity, learning, and memory through molecular mechanisms still poorly understood. Here, we demonstrate that HFD increases palmitic acid deposition in the hippocampus and induces hippocampal insulin resistance leading to FoxO3a-mediated overexpression of the palmitoyltransferase zDHHC3. The excess of palmitic acid along with higher zDHHC3 levels causes hyper-palmitoylation of AMPA glutamate receptor subunit GluA1, hindering its activity-dependent trafficking to the plasma membrane...
December 8, 2017: Nature Communications
https://www.readbyqxmd.com/read/29222346/adiposity-inflammation-and-breast-cancer-pathogenesis-in-asian-women
#17
Neil M Iyengar, I-Chun Chen, Xi K Zhou, Dilip D Giri, Domenick J Falcone, Lisle A Winston, Hanhan Wang, Samantha Williams, Yen-Shen Lu, Tsu-Hsin Hsueh, Ann-Lii Cheng, Clifford A Hudis, Ching-Hung Lin, Andrew J Dannenberg
Obesity is associated with white adipose tissue (WAT) inflammation in the breast, elevated levels of the estrogen biosynthetic enzyme, aromatase, and systemic changes that predispose to breast cancer development. We examined whether WAT inflammation and its associated systemic effects correlate with body fat levels in an Asian population where body mass index (BMI) is not an accurate assessment of obesity and cancer risk. We also investigated whether biologic differences could account for the greater proportion of premenopausal estrogen receptor (ER)-positive breast cancer in Asian versus western countries...
December 8, 2017: Cancer Prevention Research
https://www.readbyqxmd.com/read/29222051/long-term-fermented-soybean-paste-improves-metabolic-parameters-associated-with-non-alcoholic-fatty-liver-disease-and-insulin-resistance-in-high-fat-diet-induced-obese-mice
#18
Min-Seok Kim, Bobae Kim, Haryung Park, Yosep Ji, Wilhelm Holzapfel, Do-Young Kim, Chang-Kee Hyun
Recently, Korean traditional fermented soybean paste, called Doenjang, has attracted attention for its protective effect against diet-related chronic diseases such as obesity and type 2 diabetes. Long-term fermented soybean pastes (LFSPs) are made by fermentation with naturally-occurring microorganisms for several months, whereas short-term fermented soybean pastes (SFSPs) are produced by shorter-time fermentation inoculated with a starter culture. Here, we demonstrate that administration of LFSP, but not SFSP, protects high-fat diet (HFD)-fed obese mice against non-alcohol fatty liver disease (NAFLD) and insulin resistance...
December 5, 2017: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/29221916/dna-methylation-signatures-at-endoplasmic-reticulum-stress-genes-are-associated-with-adiposity-and-insulin-resistance
#19
Omar Ramos-Lopez, Jose I Riezu-Boj, Fermin I Milagro, J Alfredo Martinez
A sustained activation of the unfolded protein response and the subsequent endoplasmic reticulum (ER) stress has been involved in the onset and severity of several metabolic diseases. The aim of this study was to analyze the association of DNA methylation signatures at ER stress genes with adiposity traits and related metabolic disorders. An epigenomic analysis within the Methyl Epigenome Network Association (MENA) project was conducted in an adult population (n=474). DNA methylation status in peripheral white blood cells was analyzed by a microarray approach...
November 28, 2017: Molecular Genetics and Metabolism
https://www.readbyqxmd.com/read/29221862/physical-activity-sedentary-time-tv-viewing-physical-fitness-and-cardiovascular-disease-risk-in-adolescents-the-helena-study
#20
Alan R Barker, Luis Gracia-Marco, Jonatan R Ruiz, Manuel J Castillo, Raquel Aparicio-Ugarriza, Marcela González-Gross, Anthony Kafatos, Odysseas Androutsos, Angela Polito, Dénes Molnar, Kurt Widhalm, Luis A Moreno
BACKGROUND: To examine the independent associations between physical activity (PA) intensities, sedentary time (ST), TV viewing, cardiorespiratory fitness (CRF) and muscular fitness (MF) with cardiovascular disease (CVD) risk in youth. METHODS: A cross-sectional study on 534 European adolescents (252 males, 282 females, 12.5-17.5years). Minutes per day of light (LPA), moderate (MPA) and vigorous (VPA) PA and total ST were measured using accelerometers. TV viewing time was measured using a questionnaire...
November 26, 2017: International Journal of Cardiology
keyword
keyword
889
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"