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https://www.readbyqxmd.com/read/29166648/different-response-to-hypoxia-of-adipose-derived-multipotent-cells-from-obese-subjects-with-and-without-metabolic-syndrome
#1
Wilfredo Oliva-Olivera, Isabel Moreno-Indias, Leticia Coín-Aragüez, Said Lhamyani, Juan Alcaide Torres, Sonia Fernández-Veledo, Joan Vendrell, Antonio Camargo, Rajaa El Bekay, Francisco José Tinahones
BACKGROUND/OBJECTIVES: Multiple studies suggest that hypoxia, together with inflammation, could be one of the phenomena involved in the onset and progression of obesity-related insulin resistance. In addition, dysfunction of adipose tissue in obese subjects with metabolic syndrome is associated with decreased angiogenesis. However, some subjects with a high body mass index do not develop metabolic abnormalities associated with obesity. The aim of the current study was to examine the neovascular properties of visceral adipose tissue-derived multipotent mesenchymal cells subjected to hypoxia (hypox-visASCs) from normal-weight subjects (Nw) and obese patients with metabolic syndrome (MS) and without metabolic syndrome (NonMS)...
2017: PloS One
https://www.readbyqxmd.com/read/29166590/interleukin-33-activated-islet-resident-innate-lymphoid-cells-promote-insulin-secretion-through-myeloid-cell-retinoic-acid-production
#2
Elise Dalmas, Frank M Lehmann, Erez Dror, Stephan Wueest, Constanze Thienel, Marcela Borsigova, Marc Stawiski, Emmanuel Traunecker, Fabrizio C Lucchini, Dianne H Dapito, Sandra M Kallert, Bruno Guigas, Francois Pattou, Julie Kerr-Conte, Pierre Maechler, Jean-Philippe Girard, Daniel Konrad, Christian Wolfrum, Marianne Böni-Schnetzler, Daniela Finke, Marc Y Donath
Pancreatic-islet inflammation contributes to the failure of β cell insulin secretion during obesity and type 2 diabetes. However, little is known about the nature and function of resident immune cells in this context or in homeostasis. Here we show that interleukin (IL)-33 was produced by islet mesenchymal cells and enhanced by a diabetes milieu (glucose, IL-1β, and palmitate). IL-33 promoted β cell function through islet-resident group 2 innate lymphoid cells (ILC2s) that elicited retinoic acid (RA)-producing capacities in macrophages and dendritic cells via the secretion of IL-13 and colony-stimulating factor 2...
November 21, 2017: Immunity
https://www.readbyqxmd.com/read/29166583/the-skinny-pancreatic-ilc2s-promote-insulin-secretion
#3
Kelly M Cautivo, Ari B Molofsky
Regulation of pancreatic insulin production is pivotal in the pathophysiology and treatment of diabetes. In this issue of Immunity, Dalmas et al. (2017) describe a type 2 immune circuit where pancreatic interleukin-33 (IL-33) promotes insulin secretion via the activity of islet-associated group 2 innate lymphoid cells (ILC2s).
November 21, 2017: Immunity
https://www.readbyqxmd.com/read/29166433/hypoglycemia-caused-by-co-secretion-of-insulin-from-lung-tumor-and-cardia-cancer-first-case-report
#4
Yaning Chen, Yi Kang, Liu Hong, Hebin Yao
CONTEXT: Non-islet-cell-tumor-induced hypoglycemia (NICTH) is caused on rare occasions by secretion of insulin from tumor cells that are reported to have a single tissue origin. CASE REPORT: A 67-year-old male patient had cardia adenocarcinoma and concomitant lung adenocarcinoma with extensive metastases and repeated episodes of intractable hypoglycemia. Immunohistochemical staining for insulin showed that lung adenocarcinoma stained positive and gastric cardia adenocarcinoma stained weakly positive...
November 17, 2017: São Paulo Medical Journal, Revista Paulista de Medicina
https://www.readbyqxmd.com/read/29166409/post-weaning-high-fat-diet-results-in-growth-cartilage-lesions-in-young-male-rats
#5
Samuel S Haysom, Mark H Vickers, Lennex H Yu, Clare M Reynolds, Elwyn C Firth, Sue R McGlashan
To determine if a high-fat diet (HF) from weaning would result in a pro-inflammatory state and affect joint cartilage, we fed male rats either HF or Chow diet post-weaning, and voluntary wheel exercise (EX) or cage only activity (SED) after 9 weeks of age. At 17 weeks body composition, plasma biomarkers and histomorphology scores of femoro-tibial cartilages of HF-SED, HF-EX, Chow-SED and Chow-EX groups were compared. Food intake and activity were not significantly different between groups. HF diet resulted in significantly higher weight gain, %fat, fat:lean ratio, and plasma leptin, insulin and TNFα concentrations, with significant interactions between diet and exercise...
2017: PloS One
https://www.readbyqxmd.com/read/29166392/intestinal-ralstonia-pickettii-augments-glucose-intolerance-in-obesity
#6
Shanthadevi D Udayappan, Petia Kovatcheva-Datchary, Guido J Bakker, Stefan R Havik, Hilde Herrema, Patrice D Cani, Kristien E Bouter, Clara Belzer, Julia J Witjes, Anne Vrieze, Noor de Sonnaville, Alice Chaplin, Daniel H van Raalte, Steven Aalvink, Geesje M Dallinga-Thie, Hans G H J Heilig, Göran Bergström, Suzan van der Meij, Bart A van Wagensveld, Joost B L Hoekstra, Frits Holleman, Erik S G Stroes, Albert K Groen, Fredrik Bäckhed, Willem M de Vos, Max Nieuwdorp
An altered intestinal microbiota composition has been implicated in the pathogenesis of metabolic disease including obesity and type 2 diabetes mellitus (T2DM). Low grade inflammation, potentially initiated by the intestinal microbiota, has been suggested to be a driving force in the development of insulin resistance in obesity. Here, we report that bacterial DNA is present in mesenteric adipose tissue of obese but otherwise healthy human subjects. Pyrosequencing of bacterial 16S rRNA genes revealed that DNA from the Gram-negative species Ralstonia was most prevalent...
2017: PloS One
https://www.readbyqxmd.com/read/29166321/adipose-lipolysis-unchanged-by-preexercise-carbohydrate-regardless-of-glycemic-index
#7
Daniel A Baur, Brandon D Willingham, Kyle A Smith, Jacob N Kisiolek, Margaret C Morrissey, Patrick G Saracino, Tristan J Ragland, Michael J Ormsbee
PURPOSE: To determine the impact of pre-exercise carbohydrate of different glycemic indices on subcutaneous abdominal adipose tissue (SCAAT) metabolism and running performance. METHODS: Ten trained male runners completed three experimental trials consisting of 30 min at 60% VO2max, 30 min at 75% VO2max, and a 5-km time trial (TT). Thirty min prior to exercise, participants consumed one of three beverages: 1) 75 g low glycemic index modified starch supplement (UCAN), 2) 75 g high glycemic index glucose-based supplement (G), or 3) a flavor-matched non-caloric placebo (PL)...
November 20, 2017: Medicine and Science in Sports and Exercise
https://www.readbyqxmd.com/read/29166319/cardiometabolic-impact-of-changing-sitting-standing-and-stepping-in-the-workplace
#8
Elisabeth Ah Winkler, Sebastien Chastin, Elizabeth G Eakin, Neville Owen, Anthony D LaMontagne, Marj Moodie, Paddy C Dempsey, Bronwyn A Kingwell, David W Dunstan, Genevieve N Healy
BACKGROUND: According to cross-sectional and acute experimental evidence, reducing sitting time should improve cardio-metabolic health risk biomarkers. Furthermore, the improvements obtained may depend on whether sitting is replaced with standing or ambulatory activities. Based on data from the Stand Up Victoria multi-component workplace intervention, we examined this issue using compositional data analysis - a method that can examine and compare all activity changes simultaneously. METHODS: Participants receiving the intervention (n=136 ≥0...
November 21, 2017: Medicine and Science in Sports and Exercise
https://www.readbyqxmd.com/read/29166305/botulinum-toxin-therapy-is-syringe-type-related-to-cost-effectiveness
#9
Mark Anthony Foglietti, Lauren Wright, Alanna Foglietti-Fostyk
INTRODUCTION: Clostridium botulinum toxin is effective through cleaving presynaptic proteins at the neuromuscular junction, which prevents the release of acetylcholine and inhibits muscle contraction. Several serotypes of botulinum toxin (BT) exist; however, only 2 types have been approved by the US Food and Drug Administration for commercial and medical use, A and B. Both types of BT must be administered intramuscularly with a syringe, but the type of syringe is the injector's preference...
November 21, 2017: Annals of Plastic Surgery
https://www.readbyqxmd.com/read/29166264/relationship-between-ph-of-ruminal-fluid-during-subacute-ruminal-acidosis-and-physiological-response-of-the-polish-holstein-friesian-dairy-cows
#10
B Stefańska, E Pruszyńska-Oszmałek, D Szczepankiewicz, K Stajek, P Stefański, M Gehrke, W Nowak
The aim of the study was to investigate the effect of ruminal fluid pH depression on biochemical indices of blood, urine, feces, and milk, and to determine which of them may be helpful as a marker for the diagnosis of subacute ruminal acidosis (SARA). Ruminal fluid samples were obtained by rumenocentesis from 305 cows representing 13 commercial dairy herds. The herds were selected based on percentages of cows with an assigned value of ruminal fluid pH segregated into three groups as: SARA-positive herd, if at least 25% of the ruminal fluid samples indicated a pH < 5...
September 26, 2017: Polish Journal of Veterinary Sciences
https://www.readbyqxmd.com/read/29165880/hvidoere-smiley-faces-international-diabetes-quality-of-life-assessment-tool-for-young-children
#11
Hilary Hoey, Karin Lange, T C Skinner, Henrik Mortensen, Peter Swift, Henk-Jan Aanstoot, Luis Castaňo, Fergus Cameron, Carine de Beaufort
BACKGROUND: Few diabetes-specific quality of life (QOL) tools are available for young children. OBJECTIVES: To design and evaluate, a new age-specific QOL questionnaire and its associations with treatment regimens and metabolic control. METHODS: Clinical, demographic data and centrally analyzed HbA1c were collected on 1133 children <11 years (girls 48%; mean ± SD age 8.0 ± 2.1 years; diabetes duration ≥1 year) from 18 centers (Europe, Japan, North America and Australia)...
November 22, 2017: Pediatric Diabetes
https://www.readbyqxmd.com/read/29165725/somatotrope-pituitary-function-in-professional-soccer-players
#12
Pia Roser, Tatiana Wehrhahn, Henry Krogmann, Nina Riedel, Robert Percy Marshall, Justus Gille, Jörg Flitsch, Jens Aberle
Background and objective Soccer is associated with repetitive head trauma, which, as it is known from sports like football and boxing, can result in hypopituitarism. Gonadotropins and GH are the most common pituitary hormones to become deficient. GH deficiency is associated with an increased risk of cardiovascular mortality and has negative influence on body mass index, visceral fat mass, insulin resistance and sensitivity, bone mineral density and inflammatory markers. Therefore the aim of this study was to evaluate the somatotrope pituitary function in professional soccer players...
November 17, 2017: Experimental and Clinical Endocrinology & Diabetes
https://www.readbyqxmd.com/read/29165724/protective-effect-and-potential-mechanism-of-simvastatin-on-myocardial-injury-induced-by-diabetes-with-hypoglycemia
#13
Haiqing Li, Qianqian Zhao, Rong Liu, Lan Yang, Huanzhen Chen, Xiangli Cui
Background Simvastatin has been reported to reduce cardiovascular related morbidity and mortality in clinical trials which was independent of its cholesterol-lowering effect. This study aims to investigate the protective effect of simvastatin on myocardial injury caused by diabetic hypoglycemia and the possible underlying mechanism. Methods We used streptozotocin (STZ) at a dose of 55 mg/kg to induce diabetes mellitus (DM) and over-dose insulin to induce hypoglycemia to establish diabetic hypoglycemia rat models...
November 17, 2017: Experimental and Clinical Endocrinology & Diabetes
https://www.readbyqxmd.com/read/29165691/estradiol-protects-proopiomelanocortin-neurons-against-insulin-resistance
#14
Jian Qiu, Martha A Bosch, Cecilia Meza, Uyen-Vy Navarro, Casey C Nestor, Edward J Wagner, Oline K Rønnekleiv, Martin J Kelly
Insulin resistance is at the core of the metabolic syndrome, and men exhibit a higher incidence of metabolic syndrome than women in early adult life, but this sex advantage diminishes sharply when women reach the postmenopausal state. Since 17β-estradiol (E2) augments the excitability of the anorexigenic POMC neurons, we investigated the neuroprotective effects of E2 against insulin resistance in POMC neurons from diet-induced obese (DIO) female and male mice. The efficacy of insulin to activate canonical transient receptor potential 5 (TRPC5) channels and depolarize POMC neurons was significantly reduced in DIO male but not in DIO female mice...
November 20, 2017: Endocrinology
https://www.readbyqxmd.com/read/29165668/electrophysiological-measures-of-aging-pharynx-function-in-c-elegans-reveal-enhanced-organ-functionality-in-older-long-lived-mutants
#15
Joshua Coulter Russell, Nikolay Burnaevskiy, Bridget Ma, Miguel Arenas Mailig, Franklin Faust, Matt Crane, Matt Kaeberlein, Alexander Mendenhall
The function of the pharynx, an organ in the model system Caenorhabditis elegans, has been correlated with lifespan and motility (another measure of health) since 1980. In this study, in order to further understand the relationship between organ function and lifespan, we measured the age-related decline of the pharynx using an electrophysiological approach. We measured and analyzed electropharyngeograms of wild type animals, short-lived hsf-1 mutants, and long-lived animals with genetically decreased insulin signaling or increased heat shock pathway signaling; we recorded a total of 2,478 electropharyngeograms from 1,374 individuals...
November 18, 2017: Journals of Gerontology. Series A, Biological Sciences and Medical Sciences
https://www.readbyqxmd.com/read/29165552/what-happened-to-the-igf-binding-proteins
#16
Leon A Bach
Insulin-like growth factor binding proteins (IGFBPs) 1-6 are high affinity regulators of IGF activity. They generally inhibit IGF actions by preventing binding to the IGF-I receptor but may also enhance their actions under some conditions. Post-translational modifications such as glycosylation and phosphorylation modulate IGFBP properties, and IGFBP proteolysis results in IGF release. IGFBPs have more recently been shown to have IGF-independent actions. A number of mechanisms are involved, including modulation of other growth factor pathways, nuclear localization and transcriptional regulation, interaction with the sphingolipid pathway, and binding to non-IGF biomolecules in the extracellular space and matrix, on the cell surface and intracellularly...
November 20, 2017: Endocrinology
https://www.readbyqxmd.com/read/29165404/benefits-of-nut-consumption-on-insulin-resistance-and-cardiovascular-risk-factors-multiple-potential-mechanisms-of-actions
#17
REVIEW
Yoona Kim, Jennifer B Keogh, Peter M Clifton
Epidemiological and clinical studies have indicated that nut consumption could be a healthy dietary strategy to prevent and treat type 2 diabetes (T2DM) and related cardiovascular disease (CVD). The objective of this review is to examine the potential mechanisms of action of nuts addressing effects on glycemic control, weight management, energy balance, appetite, gut microbiota modification, lipid metabolism, oxidative stress, inflammation, endothelial function and blood pressure with a focus on data from both animal and human studies...
November 22, 2017: Nutrients
https://www.readbyqxmd.com/read/29165388/argan-oil-as-an-effective-nutri-therapeutic-agent-in-metabolic-syndrome-a-preclinical-study
#18
Adil El Midaoui, Youssef Haddad, Younes Filali-Zegzouti, Réjean Couture
The present study aims at examining the effects of argan oil on the three main cardiovascular risk factors associated with metabolic syndrome (hypertension, insulin resistance and obesity) and on one of its main complications, neuropathic pain. Male Sprague-Dawley rats had free access to a drinking solution containing 10% d-glucose or tap water for 12 weeks. The effect of argan oil was compared to that of corn oil given daily by gavage during 12 weeks in glucose-fed rats. Glucose-fed rats showed increases in systolic blood pressure, epididymal fat, plasma levels of triglycerides, leptin, glucose and insulin, insulin resistance, tactile and cold allodynia in association with a rise in superoxide anion production and NADPH oxidase activity in the thoracic aorta, epididymal fat and gastrocnemius muscle...
November 22, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/29165364/the-rosiglitazone-like-effects-of-vitexilactone-a-constituent-from-vitex-trifolia-l-in-3t3-l1-preadipocytes
#19
Atsuyoshi Nishina, Masaya Itagaki, Daisuke Sato, Hirokazu Kimura, Yasuaki Hirai, Nyunt Phay, Makoto Makishima
The increased number of patients with type 2 diabetes (T2D) has become a worldwide problem, and insulin sensitizers such as thiazolidinediones (TZDs) are used as therapeutic agents. We found that extracts of Vitex trifolia L. (V. trifolia), a medicinal plant from Myanmar, induced adipogenesis similar to rosiglitazone (ROS), which is a TZD, in 3T3-L1 preadipocytes. In the present study, we attempted to isolate from V. trifolia those compounds that showed ROS-like effects. Among the extracts of hexane, ethyl acetate, and methanol obtained from V...
November 22, 2017: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
https://www.readbyqxmd.com/read/29165354/the-role-of-glucagon-like-peptide-1-glp1-in-type-3-diabetes-glp-1-controls-insulin-resistance-neuroinflammation-and-neurogenesis-in-the-brain
#20
REVIEW
Choon Sang Bae, Juhyun Song
Alzheimer's disease (AD), characterized by the aggregation of amyloid-β (Aβ) protein and neuroinflammation, is the most common neurodegenerative disease globally. Previous studies have reported that some AD patients show impaired glucose utilization in brain, leading to cognitive decline. Recently, diabetes-induced dementia has been called "type 3 diabetes", based on features in common with those of type 2 diabetes and the progression of AD. Impaired glucose uptake and insulin resistance in the brain are important issues in type 3 diabetes, because these problems ultimately aggravate memory dysfunction in the brain...
November 22, 2017: International Journal of Molecular Sciences
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