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Inflammation obesity

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https://www.readbyqxmd.com/read/28339731/obesity-associated-cardiac-pathogenesis-in-broiler-breeder-hens-development-of-metabolic-cardiomyopathy2-3
#1
C Y Chen, Y F Huang, Y J Ko, Y J Liu, Y H Chen, R L Walzem, S E Chen
Feed intake is typically restricted (R) in broiler hens to avoid obesity and improve egg production and livability. To determine whether improved heart health contributes to improved livability, fully adult 45-week-old R hens were allowed to consume feed to appetite (ad libitum; AL) up to 10 wk (70 d). Mortality, contractile functions, and morphology at 70 d, and measurements of cardiac hypertrophic remodeling at 7 d and 21 d were made and compared between R and AL hens. Outcomes for cardiac electrophysiology and mortality, reported separately, found increased mortality in AL hens in association with cardiac pathological hypertrophy and contractile dysfunction...
February 22, 2017: Poultry Science
https://www.readbyqxmd.com/read/28335587/neuronatin-is-associated-with-anti-inflammatory-role-in-the-white-adipose-tissue
#2
Hye In Ka, Sora Han, Ae Lee Jeong, Sunyi Lee, Hyo Jeong Yong, Ariundavaa Boldbaatar, Hyun Jeong Joo, Su Jung Soh, Ji Young Park, Jong-Seok Lim, Myung Sok Lee, Young Yang
Neuronatin (NNAT) is known to regulate ion channels during brain development and plays a role in maintaining the structure of the nervous system. A previous in silico analysis showed that Nnat was overexpressed in the adipose tissue of an obese rodent model relative to the wild-type. Therefore, the aim of the present study was to investigate the function of Nnat in the adipose tissue. Because obesity is known to systemically induce low-grade inflammation, the Nnat expression level was examined in the adipose tissue obtained from C57BL/6 mice administered lipopolysaccharide (LPS)...
March 24, 2017: Journal of Microbiology and Biotechnology
https://www.readbyqxmd.com/read/28335527/metabolic-disorder-in-chronic-obstructive-pulmonary-disease-copd-patients-towards-a-personalized-approach-using-marine-drug-derivatives
#3
REVIEW
Palma Lamonaca, Giulia Prinzi, Aliaksei Kisiliaou, Vittorio Cardaci, Massimo Fini, Patrizia Russo
Metabolic disorder has been frequently observed in chronic obstructive pulmonary disease (COPD) patients. However, the exact correlation between obesity, which is a complex metabolic disorder, and COPD remains controversial. The current study summarizes a variety of drugs from marine sources that have anti-obesity effects and proposed potential mechanisms by which lung function can be modulated with the anti-obesity activity. Considering the similar mechanism, such as inflammation, shared between obesity and COPD, the study suggests that marine derivatives that act on the adipose tissues to reduce inflammation may provide beneficial therapeutic effects in COPD subjects with high body mass index (BMI)...
March 20, 2017: Marine Drugs
https://www.readbyqxmd.com/read/28333382/regulation-and-function-of-extracellular-nicotinamide-phosphoribosyltransferase-visfatin
#4
Federico Carbone, Luca Liberale, Aldo Bonaventura, Alessandra Vecchiè, Matteo Casula, Michele Cea, Fiammetta Monacelli, Irene Caffa, Santina Bruzzone, Fabrizio Montecucco, Alessio Nencioni
Nicotinamide phosphoribosyltransferase (NAMPT) is an adipokine-enzyme, which was described as to play bioactivities both in the intracellular and in the extracellular environment. However, while the functions of intracellular NAMPT (iNAMPT) are well known, much less is known on extracellular NAMPT (eNAMPT), also called visfatin or pre-B cell colony-enhancing factor. iNAMPT catalyzes the rate-limiting step in the NAD+ biosynthesis pathway from nicotinamide. Its inhibition severely reduces intracellular NAD+ levels, achieving anti-inflammatory and anti-cancer effects...
March 16, 2017: Comprehensive Physiology
https://www.readbyqxmd.com/read/28331804/infected-ascites-distinguishing-secondary-peritonitis-from-spontaneous-bacterial-peritonitis-in-a-cirrhotic-patient-with-classic-symptoms
#5
Marvin Louis Roy Lu, Akanksha Agarwal, Josh Sloan, Aaron Kosmin
INTRODUCTION: Spontaneous bacterial peritonitis can be differentiated from secondary bacterial peritonitis by the absence of a surgically treatable intra-abdominal source of infection. However, oftentimes this is unapparent and other clinical clues need to be sought after to make the right diagnosis. CASE: A 64-year-old woman was admitted because of three days of worsening diffuse abdominal pain and distention. She was morbidly obese and had a history of non-alcoholic steatohepatitis (NASH) cirrhosis...
2017: IDCases
https://www.readbyqxmd.com/read/28331572/environmental-risk-factors-for-autism-an-evidence-based-review-of-systematic-reviews-and-meta-analyses
#6
REVIEW
Amirhossein Modabbernia, Eva Velthorst, Abraham Reichenberg
BACKGROUND: According to recent evidence, up to 40-50% of variance in autism spectrum disorder (ASD) liability might be determined by environmental factors. In the present paper, we conducted a review of systematic reviews and meta-analyses of environmental risk factors for ASD. We assessed each review for quality of evidence and provided a brief overview of putative mechanisms of environmental risk factors for ASD. FINDINGS: Current evidence suggests that several environmental factors including vaccination, maternal smoking, thimerosal exposure, and most likely assisted reproductive technologies are unrelated to risk of ASD...
2017: Molecular Autism
https://www.readbyqxmd.com/read/28330882/adiponectin-and-resistin-a-role-in-the-hypothalamo-pituitary-gonadal-axis
#7
Agnieszka Rak, Namya Mellouk, Pascal Froment, Joëlle Dupont
Adipokines, including adiponectin and resistin, are cytokines produced mainly by adipose tissue. They play a significant role in the metabolic functions that regulate insulin sensitivity and inflammation. Alteration of adiponectin and resistin plasma levels, or their expression in metabolic and gonadal tissue, are observed in some metabolic pathologies, such as obesity. Several studies have shown that these two hormones and the receptors for adiponectin, AdipoR1 and AdipoR2, are present in various reproductive tissues in both sexes of different species...
March 22, 2017: Reproduction: the Official Journal of the Society for the Study of Fertility
https://www.readbyqxmd.com/read/28329220/prolonged-exposures-to-intermittent-hypoxia-promote-visceral-white-adipose-tissue-inflammation-in-a-murine-model-of-severe-sleep-apnea-effect-of-normoxic-recovery
#8
Alex Gileles-Hillel, Isaac Almendros, Abdelnaby Khalyfa, Recep Nigdelioglu, Zhuanhong Qiao, Robert B Hamanaka, Gökhan M Mutlu, Mahzad Akbarpour, David Gozal
Study Objectives: Increased visceral white adipose tissue (vWAT) mass results in infiltration of inflammatory macrophages that drive inflammation and insulin resistance. Patients with obstructive sleep apnea (OSA) suffer from increased prevalence of obesity, insulin resistance and metabolic syndrome. Murine models of intermittent hypoxia (IH) mimicking moderate-severe OSA manifest insulin resistance following short-term IH. We examined in mice the effect of long-term IH on the inflammatory cellular changes within vWAT, and the potential effect of normoxic recovery (IH-R)...
December 22, 2016: Sleep
https://www.readbyqxmd.com/read/28328066/maternal-obesity-and-inflammatory-mediators-a-controversial-association
#9
REVIEW
Karen Priscilla Tezotto Pendeloski, Erika Ono, Maria Regina Torloni, Rosiane Mattar, Silvia Daher
The link between maternal obesity and inflammatory mediators is still unclear. Our aim was to summarize the main findings of recently published studies on this topic. We performed a search in Medline for studies published in the last years on obesity, human pregnancy, and inflammatory mediators. We report the findings of 30 studies. The characteristics and number of participants, study design, gestational age at sample collection, and type of sample varied widely. Approximately two-thirds of them investigated more than one mediator, and 50% included participants in only one trimester of pregnancy...
March 22, 2017: American Journal of Reproductive Immunology: AJRI
https://www.readbyqxmd.com/read/28327129/short-term-overfeeding-of-zebrafish-with-normal-or-high-fat-diet-as-a-model-for-the-development-of-metabolically-healthy-versus-unhealthy-obesity
#10
Kathrin Landgraf, Susanne Schuster, Andrej Meusel, Antje Garten, Thomas Riemer, Dorit Schleinitz, Wieland Kiess, Antje Körner
BACKGROUND: Obese individuals differ in their risk of developing metabolic and cardiovascular complications depending on fat distribution (subcutaneous versus visceral) and adipose tissue (AT) phenotype (hyperplasic versus hypertrophic). However, the exact mechanisms which determine whether an obese individual is metabolically healthy or unhealthy are not clear, and analyses of the underlying pathomechanisms are limited by the lack of suitable in vivo models in which metabolically healthy versus metabolically unhealthy AT accumulation can be specifically induced...
March 21, 2017: BMC Physiology
https://www.readbyqxmd.com/read/28323977/short-term-vs-long-term-effects-of-adipocyte-toll-like-receptor-4-activation-on-insulin-resistance-in-male-mice
#11
Caroline Tao, William L Holland, Qiong A Wang, Mengle Shao, Lin Jia, Kai Sun, Xiaoli Lin, Yi-Chun Kuo, Joshua A Johnson, Ruth Gordillo, Joel K Elmquist, Philipp E Scherer
Chronic exposure to diets high in saturated fat (HFD) increases the prevalence of obesity and contributes to the development of low-grade inflammation and insulin resistance. A possible mediator accounting for obesity-associated inflammation and insulin resistance is Toll-like receptor 4 (TLR4). We investigated the role of adipocyte TLR4 in lipid and glucose homeostasis through an inducible, adipocyte-specific deletion of TLR4, the "TADIPO mouse". Consistent with a critical role for inflammation as a positive force for healthy adipose tissue expansion, chronic HFD exposure resulted in exacerbated whole body and muscle insulin resistance in the absence of TLR4 in the adipocyte...
February 24, 2017: Endocrinology
https://www.readbyqxmd.com/read/28323970/obesity-modulates-inflammation-and-lipid-metabolism-oocyte-gene-expression-a-single-cell-transcriptome-perspective
#12
Meghan L Ruebel, Matthew Cotter, Clark R Sims, Dean M Moutos, Thomas M Badger, Mario A Cleves, Kartik Shankar, Aline Andres
Context: It is hypothesized that obesity adversely affects the ovarian environment which can disrupt oocyte maturation and may further impact embryonic development. Objective: This study aimed to compare oocyte gene expression profiles and follicular fluid (FF) content from overweight/obese (OW) women and normal weight (NW) women who were undergoing fertility treatments. Design: Using single cell transcriptomic analyses, we investigated oocyte gene expression using RNA-seq...
March 15, 2017: Journal of Clinical Endocrinology and Metabolism
https://www.readbyqxmd.com/read/28323968/impaired-glycine-mia-in-type-2-diabetes-and-potential-mechanisms-contributing-to-glucose-homeostasis
#13
Richard Yan-Do, Patrick E MacDonald
The onset and/or progression of type 2 diabetes (T2D) can be prevented if intervention is early enough. As such, much effort has been placed on the search for indicators predictive of pre-diabetes and disease onset or progression. An increasing body of evidence suggests that changes in plasma glycine may be one such biomarker. Circulating glycine levels are consistently low in patients with T2D. Levels of this non-essential amino acid correlate negatively with obesity and insulin resistance. Plasma glycine correlates positively with glucose disposal, and rises with interventions such as exercise and bariatric surgery that improve glucose homeostasis...
March 15, 2017: Endocrinology
https://www.readbyqxmd.com/read/28323950/breaking-up-prolonged-sitting-alters-the-postprandial-plasma-lipidomic-profile-of-adults-with-type-2-diabetes
#14
Megan S Grace, Paddy C Dempsey, Parneet Sethi, Piyushkumar A Mundra, Natalie A Mellett, Jacquelyn M Weir, Neville Owen, David W Dunstan, Peter J Meikle, Bronwyn A Kingwell
Context: Postprandial dysmetabolism in type 2 diabetes (T2D) is exacerbated by prolonged sitting, and may trigger inflammation and oxidative stress. It is unknown what impact countermeasures to prolonged sitting have on the postprandial lipidome. Objective: In this study, we investigated the effects of regular interruptions to sitting, compared to prolonged sitting, on the postprandial plasma lipidome. Design: Randomized cross-over experimental trial...
March 13, 2017: Journal of Clinical Endocrinology and Metabolism
https://www.readbyqxmd.com/read/28323914/menopause-is-a-determinant-of-breast-aromatase-expression-and-its-associations-with-bmi-inflammation-and-systemic-markers
#15
Kristy A Brown, Neil M Iyengar, Xi Kathy Zhou, Ayca Gucalp, Kotha Subbaramaiah, Hanhan Wang, Dilip D Giri, Monica Morrow, Domenick J Falcone, Nils K Wendel, Lisle A Winston, Michael Pollak, Anneloor Dierickx, Clifford A Hudis, Andrew J Dannenberg
CONTEXT: Most estrogen-dependent breast cancers occur after menopause despite low levels of circulating estrogens. Breast expression of the estrogen-biosynthetic enzyme, aromatase, is proposed to drive breast cancer development after menopause. However, the effects of menopause on breast aromatase expression are unknown. OBJECTIVE: To determine the effect of menopause on breast aromatase expression in relation to body mass index (BMI), white adipose tissue inflammation (WATi) and systemic markers of metabolic dysfunction...
February 16, 2017: Journal of Clinical Endocrinology and Metabolism
https://www.readbyqxmd.com/read/28323510/positive-association-between-the-changes-in-chemerin-and-adiponectin-levels-after-weight-reduction
#16
Hyun-Young Shin, Sohee Park, Ji Won Lee
PURPOSE: Adiponectin and chemerin have been reported their associations with insulin resistance and chronic inflammation. However, the relationship between adiponectin and chemerin themselves has not been fully elucidated. Therefore, we investigated the effects of changes in adiponectin and chemerin levels after a weight intervention. MATERIALS AND METHODS: We recruited 136 healthy overweight or obese subjects from 2006 to 2009 and provided all participants lifestyle modification therapy with diet consultations over 16 weeks...
March 21, 2017: Endocrine Research
https://www.readbyqxmd.com/read/28323124/cd44-is-a-key-player-in-non-alcoholic-steatohepatitis
#17
Stéphanie Patouraux, Déborah Rousseau, Stéphanie Bonnafous, Cynthia Lebeaupin, Carmelo Luci, Clémence M Canivet, Anne-Sophie Schneck, Adeline Bertola, Marie-Christine Saint-Paul, Antonio Iannelli, Jean Gugenheim, Rodolphe Anty, Albert Tran, Béatrice Bailly-Maitre, Philippe Gual
BACKGROUND: CD44 is expressed on many immune cells that contribute to inflammation. It has been shown, mainly through animal data, that CD44 regulates adipose tissue inflammation in obesity and hepatic leukocyte recruitment in a lithogenic context. However, its role in hepatic inflammation in a mouse model of steatohepatitis and its relevance in humans have not yet been investigated. METHODS: The role of CD44 was evaluated in CD44-/- mice and after injections of an αCD44 antibody in Wild-type mice challenged with a methionine- and choline-deficient diet (MCDD)...
March 16, 2017: Journal of Hepatology
https://www.readbyqxmd.com/read/28322789/high-glucose-impairs-insulin-signaling-via-activation-of-pkr-pathway-in-l6-muscle-cells
#18
Mary Priyanka Udumula, Mangali Suresh Babu, Audesh Bhat, Indu Dhar, Dharmarajan Sriram, Arti Dhar
Double stranded RNA (dsRNA) activated protein kinase R (PKR), a ubiquitously expressed serine/threonine kinase is a key inducer of inflammation, insulin resistance and glucose homeostasis in obesity. Recent studies have demonstrated that PKR can respond to metabolic stress in mice as well as in humans. However the underlying molecular mechanism is not fully understood. The aim of the present study was to examine the effect of high glucose on cultured rat L6 muscle cells and to investigate whether inhibition of PKR could prevent any deleterious effects of high glucose in these cells...
March 17, 2017: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/28322017/elevated-high-sensitivity-c-reactive-protein-increases-the-risk-of-microalbuminuria-in-subjects-with-cardiovascular-disease-risk-factors
#19
Shi-Kun Yang, Jun Liu, Bin Yi, Juan Mao, Xian-Ming Zhang, Yan Liu, Dan-Dan Lei, Ming Gui, Hao Zhang
Microalbuminuria is an early biomarker of kidney injury, the aim of this study was to investigate the impact of high sensitivity C-reactive protein (hs-CRP) on microalbuminuria in adults with cardiovascular disease (CVD) risk factors. A total of 5667 subjects who voluntarily attended annual health screenings in the Third Xiangya Hospital of Central South University were included in the study. Logistic regression was used to determine the validity of hs-CRP to predict the presence of microalbuminuria. In the unadjusted regression analysis, male gender (OR 2...
March 20, 2017: Therapeutic Apheresis and Dialysis
https://www.readbyqxmd.com/read/28321033/role-of-spleen-derived-il-10-in-prevention-of-systemic-low-grade-inflammation-by-obesity-review
#20
Koro Gotoh, Kansuke Fujiwara, Manabu Anai, Mitsuhiro Okamoto, Takayuki Masaki, Tetsuya Kakuma, Hirotaka Shibata
Obesity can be associated with systemic low-grade inflammation that leads to obesity-related metabolic disorders. Recent studies raise the possibility that the inflammation in hypothalamus, liver and white adipose tissue (WAT) contributes to the pathogenesis of diet-induced obesity. We focus on the role of interleukin (IL)-10, an anti-inflammatory cytokine produced from spleen in obesity because it is indicated that obesity decreases the expression of pro-inflammatory cytokines in spleen. Obesity results in decrease of IL-10 synthesis from spleen, probably due to reduction of B-cells expression by promoting oxidative stress and apoptosis in spleen...
March 17, 2017: Endocrine Journal
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