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IL-6 and obesity

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https://www.readbyqxmd.com/read/28448210/body-composition-and-inflammatory-markers-in-pubertal-girls-comparison-between-athletes-and-non-athletic-controls
#1
Jaak Jürimäe, Kristel Võsoberg, Anna-Liisa Tamm, Katre Maasalu, Liina Remmel, Vallo Tillmann
Various inflammation parameters are increased with childhood obesity, but few comparable data are found in lean growing athletes. This study aims to characterize differences in 12 simultaneously measured inflammatory parameters between pubertal rhythmic gymnasts (RG) and untrained controls (UC), and to examine the relationship between body composition and inflammatory markers. Sixty 10-12-year-old girls were divided into RG (n = 30) and UC (n = 30). Fat mass (FM) and fat free mass (FFM) were measured by dual-energy X-ray absorptiometry...
April 27, 2017: European Journal of Sport Science
https://www.readbyqxmd.com/read/28444853/experimental-type-2-diabetes-induction-reduces-serum-vaspin-but-not-serum-omentin-in-wistar-rats
#2
Cynthia Aparecida de Castro, Karina Ana da Silva, Marina Molina Buffo, Karina Nogueira Zambone Pinto, Fernanda de Oliveira Duarte, Keico Okino Nonaka, Fernanda de Freitas Aníbal, Ana Cláudia Garcia de Oliveira Duarte
Vaspin and omentin are adipose tissue adipokines that have often been related to obesity and its comorbidities. The aim of this study was to investigate the behaviour of serum omentin and vaspin in models of type 2 diabetes. To do this, Wistar rats (~200 g) were randomly divided into two groups: a non-diabetic group (n = 6) and a diabetic group fed on a high-fat diet (n = 6) and a low dose of streptozotocin (Sigma(®) ). All procedures were approved by the Brazilian Ethics Committee. Body weight (BW) and food intake were recorded daily...
April 25, 2017: International Journal of Experimental Pathology
https://www.readbyqxmd.com/read/28440716/exercise-reduced-pentraxin-3-levels-produced-by-endotoxin-stimulated-human-peripheral-blood-mononuclear-cells-in-obese-individuals
#3
Aaron L Slusher, Yoshimi Shibata, Michael Whitehurst, Arun Maharaj, Justin M Quiles, Chun-Jung Huang
The purpose of this study was to determine whether obesity would reduce the capacity of peripheral blood mononuclear cells (PBMCs) to produce the anti-inflammatory protein pentraxin 3 (PTX3) in response to ex vivo stimulation with lipopolysaccharide (LPS), and if acute aerobic exercise would enhance this PTX3 production capacity. In addition, the inter-relationships of LPS-induced PTX3 with the inflammatory cytokines (interleukin 6 [IL-6], IL-10, and tumor necrosis factor alpha) were examined. Twenty-one healthy subjects (10 obese and 11 normal-weight) performed an acute bout of aerobic exercise at 75% VO2max...
January 1, 2017: Experimental Biology and Medicine
https://www.readbyqxmd.com/read/28440046/attenuated-low-grade-inflammation-following-long-term-dietary-intervention-in-postmenopausal-women-with-obesity
#4
Caroline Blomquist, Malin Alvehus, Jonas Burén, Mats Ryberg, Christel Larsson, Bernt Lindahl, Caroline Mellberg, Ingegerd Söderström, Elin Chorell, Tommy Olsson
OBJECTIVE: Abdominal fat accumulation after menopause is associated with low-grade inflammation and increased risk of metabolic disorders. Effective long-term lifestyle treatment is therefore needed. METHODS: Seventy healthy postmenopausal women (age 60 ± 5.6 years) with BMI 32.5 ± 5.5 were randomized to a Paleolithic-type diet (PD) or a prudent control diet (CD) for 24 months. Blood samples and fat biopsies were collected at baseline, 6 months, and 24 months to analyze inflammation-related parameters...
May 2017: Obesity
https://www.readbyqxmd.com/read/28438715/impact-of-physical-exercise-on-visceral-adipose-tissue-fatty-acid-profile-and-inflammation-in-response-to-a-high-fat-diet-regimen
#5
Sílvia Rocha-Rodrigues, Amaia Rodríguez, Inês O Gonçalves, Ana Moreira, Elisabete Maciel, Sónia Santos, Maria R Domingues, Gema Frühbeck, António Ascensão, José Magalhães
PURPOSE: Studies associate specific fatty-acids (FA) with the pathophysiology of inflammation. We aimed to analyze the impact of exercise on adipose tissue FA profile in response to a high-fat diet (HFD) and to ascertain whether these exercise-induced changes in specific FA have repercussions on obesity-related inflammation. METHODS: Sprague-Dawley rats were assigned into sedentary, voluntary physical-activity (VPA) and endurance training (ET) groups fed a standard (S, 35kcal% fat) or high-fat (71kcal% fat) diets...
April 21, 2017: International Journal of Biochemistry & Cell Biology
https://www.readbyqxmd.com/read/28431559/effects-of-whole-grain-rye-with-and-without-resistant-starch-type-2-supplementation-on-glucose-tolerance-gut-hormones-inflammation-and-appetite-regulation-in-an-11-14-5%C3%A2-hour-perspective-a-randomized-controlled-study-in-healthy-subjects
#6
Jonna C Sandberg, Inger M E Björck, Anne C Nilsson
BACKGROUND: The prevalence of obesity is increasing worldwide and prevention is needed. Whole grain has shown potential to lower the risk of obesity, cardiovascular disease and type 2 diabetes. One possible mechanism behind the benefits of whole grain is the gut fermentation of dietary fiber (DF), e.g. non-starch polysaccharides and resistant starch (RS), in whole grain. The purpose of the study is to investigate the effect of whole grain rye-based products on glucose- and appetite regulation...
April 21, 2017: Nutrition Journal
https://www.readbyqxmd.com/read/28429895/interleukin-6-and-resistin-in-relation-to-anthropometric-measurements-in-school-children
#7
Carolina Del Pilar Escalona-Villasmil, Jorymar Yoselyn Leal-Montiel, Pablo Antonio Ortega-Fernindez, Carlos Javier Chavez
The worldwide prevalence of childhood obesity has increased greatly over the past three decades. The increasing occurrence in children of disorders, such as type 2 diabetes, is believed to be a consequence of this obesity epidemic. Although the precise mechanisms are still unclear, dysregulated production or secretion of adipokines caused by excess adipose tissue and adipose tissue dysfunction can contribute to the development of obesity-related me- tabolic diseases. The objective of the study was to determine the serum levels of interleukin-6 and resistin in relation to anthropometric measurements in school children...
June 2016: Investigación Clínica
https://www.readbyqxmd.com/read/28429777/interleukin-6-increases-the-expression-and-activity-of-insulin-degrading-enzyme
#8
Mirian A Kurauti, José M Costa-Júnior, Sandra M Ferreira, Gustavo J Santos, Carlos H G Sponton, Everardo M Carneiro, Guilherme D Telles, Mara P T Chacon-Mikahil, Cláudia R Cavaglieri, Luiz F Rezende, Antonio C Boschero
Impairment of the insulin-degrading enzyme (IDE) is associated with obesity and type 2 diabetes mellitus (T2DM). Here, we used 4-mo-old male C57BL/6 interleukin-6 (IL-6) knockout mice (KO) to investigate the role of this cytokine on IDE expression and activity. IL-6 KO mice displayed lower insulin clearance in the liver and skeletal muscle, compared with wild type (WT), due to reduced IDE expression and activity. We also observed that after 3-h incubation, IL-6, 50 and 100 ng ml(-1), increased the expression of IDE in HEPG2 and C2C12 cells, respectively...
April 21, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28428025/adipokines-as-atherothrombotic-risk-factors-in-obese-subjects-associations-with-haemostatic-markers-and-common-carotid-wall%C3%A2-thickness
#9
É Csongrádi, M Káplár, B Nagy, C A Koch, A Juhász, L Bajnok, Z Varga, I Seres, Z Karányi, M T Magyar, L Oláh, A Facskó, J Kappelmayer, G Paragh
BACKGROUND AND AIMS: Some crucial associations between obesity-related altered adipokine levels and the main factors of atherosclerotic, atherothrombotic processes are not fully known. We analysed the relationships of classic adipokines, namely leptin, resistin, adiponectin, tumour necrosis factor-alpha (TNF-α), interleukin 6 (IL-6) with the markers of platelet activation, including mean platelet volume (MPV), platelet surface/soluble P-selectin, platelet-derived microparticles (PMPs), the parameters of coagulation abnormalities and common carotid intima-media thickness (IMT) in obese patients with or without atherosclerotic comorbidities in comparison to age- and sex-matched controls...
March 8, 2017: Nutrition, Metabolism, and Cardiovascular Diseases: NMCD
https://www.readbyqxmd.com/read/28427273/association-of-exclusive-breastfeeding-duration-with-systemic-inflammation-markers-in-adolescents-a-cross-sectional-study
#10
Emilio González-Jiménez, Jacqueline Schmidt-RioValle, Laura Sinausía, Javier S Perona
BACKGROUND: Breastfeeding duration has been associated with less low-grade inflammation in healthy adolescents, but there is scarce information regarding obese subjects. This study aimed to evaluate whether exclusive breastfeeding is related to serum concentrations of inflammatory markers in a population of Spanish adolescents. METHOD: A cross-sectional study was performed on 1,001 adolescents (13.2 ± 1.2 years) randomly recruited from schools in southeast Spain...
January 1, 2017: Biological Research for Nursing
https://www.readbyqxmd.com/read/28424616/whole-blood-cytokine-response-to-local-traffic-related-particulate-matter-in-peruvian-children-with-and-without-asthma
#11
Jesse P Negherbon, Karina Romero, D'Ann L Williams, Rafael E Guerrero-Preston, Thomas Hartung, Alan L Scott, Patrick N Breysse, William Checkley, Nadia N Hansel
This study sought to investigate if acute phase immune responses of whole blood from Peruvian children with controlled and uncontrolled asthma differed from children without asthma, following exposure to traffic-related particulate matter (TRPM). TRPM, including particulate matter from diesel combustion, has been shown to stimulate acute airway inflammation in individuals with and without asthma. For this study, a whole blood assay (WBA) was used to test peripheral whole blood samples from 27 children with asthma, and 12 without asthma...
2017: Frontiers in Pharmacology
https://www.readbyqxmd.com/read/28423886/adiponectin-induced-ampk-impairment-mediates-insulin-resistance-in-bama-mini-pig-fed-high-fat-and-high-sucrose-diet
#12
Miaomiao Niu, Lei Xiang, Yaqian Liu, Yuqiong Zhao, Jifang Yuan, Xin Dai, Hua Chen
Objective: Adipose tissue is no longer considered as an inert storage organ for lipid, but instead is thought to play an active role in regulating insulin effects via secretion adipokines. However, conflicting reports have emerged regarding the effects of adipokines. In this study, we investigated the role of adipokines in glucose metabolism and insulin sensitivity in obese Bama mini-pigs. Methods: An obesity model was established in Bama mini-pigs, by feeding with high-fat and high-sucrose diet for 30 weeks...
March 25, 2017: Asian-Australasian Journal of Animal Sciences
https://www.readbyqxmd.com/read/28421996/obesity-does-not-diminish-the-efficacy-of-il-6-signalling-blockade-in-mice-with-collagen-induced-arthritis
#13
Miho Suzuki, Keisuke Tanaka, Hiroto Yoshida, Kenji Yogo, Yoshihiro Matsumoto
OBJECTIVES: Obese rheumatoid arthritis patients often have higher disease activity and a poorer response to treatment than do non-obese patients. The present study aims to clarify the influence of obesity on the action of IL-6 and to evaluate the efficacy of IL-6 signalling blockade in arthritis with obesity. METHODS: Mice were fed a high-fat diet for 5 weeks, and the influence of this diet on macrophages and type II collagen-induced arthritis was investigated. RESULTS: The mice fed the high-fat diet showed greater expression of macrophage marker F4/80, not only in subcutaneous fat but also in knee synovium and the calcaneal region, than did the mice fed a normal diet...
April 18, 2017: Clinical and Experimental Rheumatology
https://www.readbyqxmd.com/read/28421328/association-of-adiponectin-leptin-and-resistin-with-inflammatory-markers-and-obesity-in-dementia
#14
Małgorzata Bednarska-Makaruk, Ałła Graban, Anna Wiśniewska, Wanda Łojkowska, Anna Bochyńska, Magdalena Gugała-Iwaniuk, Ksenia Sławińska, Agnieszka Ługowska, Danuta Ryglewicz, Hanna Wehr
The aim of the study was to determine the role of adiponectin, leptin and resistin in various types of dementia and to investigate their association with inflammatory markers, insulin resistance and abdominal obesity. In 205 patients with dementia [89 with Alzheimer's disease (AD), 47 with vascular dementia (VaD), 69 with mixed dementia (MD)], 113 persons with mild cognitive impairment and in 107 controls serum adiponectin, leptin and resistin levels, pro-inflammatory [interleukin-6 (IL-6), C-reactive protein (hsCRP) and chitotriosidase] and anti-inflammatory (25-OH vitamin D, HDL-cholesterol and paraoxonase 1) markers, as well as glucose metabolism parameters (glucose, insulin and HOMA-IR) were determined...
April 18, 2017: Biogerontology
https://www.readbyqxmd.com/read/28419655/cytokine-and-adipokine-are-biofactors-can-act-in-blood-and-colostrum-of-obese-mothers
#15
Mahmi Fujimori, Eduardo Luzia França, Tassiane Cristina Morais, Vanessa Fiorin, Luiz Carlos de Abreu, Adenilda Cristina Honório-França
Breast milk contains bioactive components that contribute to newborn development. However, colostrum may undergo biochemical and immunological changes as a function of maternal overweight and obesity. To investigate this hypothesis, this study determined the levels of hormones and immunological markers in the serum and colostrum of overweight and obese mothers. Colostrum and serum samples were collected from 15 normoweight, 15 overweight, and 15 obese women for determination of leptin, adiponectin, cytokines (TNF-α, IL-6, IL-10), and C-reactive protein (CRP)...
March 2017: BioFactors
https://www.readbyqxmd.com/read/28419237/the-fat-score-a-fibrosis-score-of-adipose-tissue-predicting-weight-loss-outcome-after-gastric-bypass
#16
Pierre Bel Lassen, Frederic Charlotte, Yuejun Liu, Pierre Bedossa, Gilles le Naour, Joan Tordjman, Christine Poitou, Jean-Luc Bouillot, Laurent Genser, Jean-Daniel Zucker, Nataliya Sokolovska, Judith Aron-Wisnewsky, Karine Clément
Context: Bariatric surgery (BS) induces major and sustainable weight loss in many but not all patients. Factors predicting poor responders (PR) need to be identified to improve patient care. Quantification of subcutaneous adipose tissue (scAT) fibrosis is negatively associated with post-BS weight loss, but whether it could constitute a predictor applicable in clinical routine remains to be demonstrated. Objective: To create a semi-quantitative score evaluating scAT fibrosis and test its predictive value on weight loss response after Roux-en-Y gastric bypass (RYGB)...
April 17, 2017: Journal of Clinical Endocrinology and Metabolism
https://www.readbyqxmd.com/read/28414075/vitamin-b2-deficiency-enhances-the-pro-inflammatory-activity-of-adipocyte-consequences-for-insulin-resistance-and-metabolic-syndrome-development
#17
Agnieszka Irena Mazur-Bialy, Ewa Pocheć
AIMS: Adipose tissue is an endocrine organ important for regulation of such physiological processes as energy metabolism or lipids homeostasis. In an obesity state, it participates in the induction of chronic systemic inflammation accompanied by pro-inflammatory cytokines and fatty acid elevation. For this reasons, adipose tissue is involved in, e.g., insulin resistance, type 2 diabetes or hyperlipidemia development. In our previous study, we have shown that riboflavin deficiency induces a pathological pro-inflammatory response of macrophages, the main component of adipose tissue...
April 14, 2017: Life Sciences
https://www.readbyqxmd.com/read/28406732/black-adzuki-bean-vigna-angularis-attenuates-high-fat-diet-induced-colon-inflammation-in-mice
#18
Jin-Seon Yook, Kyung-Ah Kim, Mina Kim, Youn-Soo Cha
Adzuki beans (Vigna angularis), one of the most important legume crops in East Asia, have been shown to possess potential antioxidant and anti-inflammatory effects in mice. Here, we investigated the effects of black adzuki bean (BAB) on colon inflammation triggered by high-fat diet (HD)-induced obesity in mice. We also isolated lipopolysaccharide (LPS)-stimulated peritoneal macrophages and assessed inflammation-related parameters. We found that BAB decreased the concentrations of LPS and various circulating proinflammatory cytokines such as tumor necrosis factor (TNF)-α, interleukin (IL)-1β, and IL-6 in mice with HD-induced obesity...
April 2017: Journal of Medicinal Food
https://www.readbyqxmd.com/read/28405880/steap4-expression-in-human-islets-is-associated-with-differences-in-body-mass-index-sex-hba1c-and-inflammation
#19
Hannah M Gordon, Neil Majithia, Patrick E MacDonald, Jocelyn E Manning Fox, Poonam R Sharma, Frances L Byrne, Kyle L Hoehn, Carmella Evans-Molina, Linda Langman, Kenneth L Brayman, Craig S Nunemaker
OBJECTIVE: STEAP4 (six-transmembrane epithelial antigen of the prostate 4) is a metalloreductase that has been shown previously to protect cells from inflammatory damage. Genetic variants in STEAP4 have been associated with numerous metabolic disorders related to obesity, including putative defects in the acute insulin response to glucose in type 2 diabetes. PURPOSE: We examined whether obesity and/or type 2 diabetes altered STEAP4 expression in human pancreatic islets...
April 12, 2017: Endocrine
https://www.readbyqxmd.com/read/28403941/obesity-is-positively-associated-with-arachidonic-acid-derived-5-and-11-hydroxyeicosatetraenoic-acid-hete
#20
Charles Austin Pickens, Lorraine M Sordillo, Chen Zhang, Jenifer I Fenton
BACKGROUND: Oxylipids are oxygenated polyunsaturated fatty acid (PUFA) metabolites that are responsible for the onset and resolution of the inflammatory response. Enzymatic oxygenation through the lipoxygenase (LOX) or cytochrome P450 (CYP) pathways can form oxylipids that have either proinflammatory or proresolving functions depending on the type of PUFA substrate and degree of metabolism. The objective of this study was to determine how PUFA substrates and their corresponding oxylipids are associated with obesity...
May 2017: Metabolism: Clinical and Experimental
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