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https://www.readbyqxmd.com/read/29130747/influence-of-storage-and-inter-and-intra-assay-variability-on-the-measurement-of-inflammatory-biomarkers-in-population-based-biobanking
#1
Robert P van Waateringe, Anneke C Muller Kobold, Jana V van Vliet-Ostaptchouk, Melanie M van der Klauw, Jan Koerts, Gabriele Anton, Annette Peters, Gerlinde Trischler, Kirsti Kvaløy, Marit Naess, Vibeke Videm, Kristian Hveem, Melanie Waldenberger, Wolfgang Koenig, Bruce H R Wolffenbuttel
BACKGROUND: In the present study, we examined the effect of sample storage on the reproducibility of several inflammatory biomarkers, including high-sensitivity C-reactive protein (hsCRP), high-sensitivity interleukin-6 (hsIL6), and high-sensitivity tumor necrosis factor alpha (hsTNFα). In addition, we assessed inter- and intra-assay variability between collaborating biobanks. METHODS: In total, 240 fasting plasma samples were obtained from the LifeLines biobank...
November 13, 2017: Biopreservation and Biobanking
https://www.readbyqxmd.com/read/29124887/association-between-metabolic-syndrome-and-gingival-inflammation-in-obese-children
#2
K Kâ, M-C Rousseau, S D Tran, M Henderson, B Nicolau
BACKGROUND AND OBJECTIVE: Our previous work showed a positive association between metabolic syndrome (MetS) and gingival crevicular fluid (GCF) tumour necrosis factor-alpha (TNF-α) in a sample of obese and non-obese children. However, whether this association persists among obese children is unknown. We aim to investigate the extent to which MetS is associated with GCF TNF-α level among obese children. METHODOLOGY: We performed a cross-sectional analysis using data from visit 1 of the QUebec Adipose and Lifestyle InvesTigation in Youth cohort...
November 10, 2017: International Journal of Dental Hygiene
https://www.readbyqxmd.com/read/29114515/responses-of-inflammatory-cytokines-following-moderate-intensity-walking-exercise-in-overweight-or-obese-individuals
#3
Yunsuk Koh, Kyung-Shin Park
This study investigated the effects of a 4-week moderate intensity walking exercise on the levels of C-reactive protein (CRP), tumor necrosis factor-alpha (TNF-α), and adiponectin in overweight or obese individuals. Twenty-seven (13 men and 14 women) physically inactive, over-weight or obese (body mass index>25.0 kg/m(2)) individuals participated in the study. Each participant was randomly assigned to either exercise (EX; n=15) or control (CON; n=12) group. The EX group performed moderate intensity walking exercise on a treadmill for 60 min at 70% of maximal heart rate for 4 weeks (3 days/wk)...
August 2017: Journal of Exercise Rehabilitation
https://www.readbyqxmd.com/read/29113135/nonalcoholic-fatty-liver-disease-is-exacerbated-in-high-fat-diet-fed-gnotobiotic-mice-by-colonization-with-the-gut-microbiota-from-patients-with-nonalcoholic-steatohepatitis
#4
Chien-Chao Chiu, Yung-Hao Ching, Yen-Peng Li, Ju-Yun Liu, Yen-Te Huang, Yi-Wen Huang, Sien-Sing Yang, Wen-Ching Huang, Hsiao-Li Chuang
Nonalcoholic fatty liver disease (NAFLD) is a serious liver disorder associated with the accumulation of fat and inflammation. The objective of this study was to determine the gut microbiota composition that might influence the progression of NAFLD. Germ-free mice were inoculated with feces from patients with nonalcoholic steatohepatitis (NASH) or from healthy persons (HL) and then fed a standard diet (STD) or high-fat diet (HFD). We found that the epididymal fat weight, hepatic steatosis, multifocal necrosis, and inflammatory cell infiltration significantly increased in the NASH-HFD group...
November 6, 2017: Nutrients
https://www.readbyqxmd.com/read/29111391/short-term-effects-of-adjunctive-antimicrobial-photodynamic-therapy-in-obese-patients-with-chronic-periodontitis-a-randomized-controlled-clinical-trial
#5
Fahim Vohra, Zohaib Akram, Ishfaq A Bukhari, Saeed A Sheikh, Fawad Javed
BACKGROUND: The aim of the present study was to assess the effect of antimicrobial photodynamic therapy (aPDT) as an adjunct to scaling and root planing (SRP) on clinical periodontal and immunological parameters in obese patients with chronic periodontitis (CP). METHODS: Fifty-three obese with CP patients were divided into 2 groups receiving aPDT with SRP and SRP only respectively. Full-mouth plaque index (PI), bleeding on probing (BOP), pocket depth (PD) and clinical attachment level (CAL) were assessed at baseline, 6 and 12 weeks post-therapy...
October 27, 2017: Photodiagnosis and Photodynamic Therapy
https://www.readbyqxmd.com/read/29099111/subtle-metabolic-alterations-in-adolescents-with-obesity-and-polycystic-ovarian-syndrome
#6
Víctor Saúl Vital-Reyes, Mardia Guadalupe Lopez-Alarcón, Patricia Inda-Icaza, Concepción Márquez-Maldonado
Objective: To evaluate the frequency of some subtle metabolic alterations in a group of adolescents with obesity and polycystic ovary syndrome (PCOS). Materials and Methods: A cross-sectional, comparative study was conducted in a group of adolescents with obesity, and characterized as with or without PCOS according with the Rotterdam Consensus. Medical history, anthropometry, gynecologic pelvic ultrasound (to evaluate ovarian volumes, number of antral follicles and endometrial width), as well as serum glucose, insulin, lipoproteins, interleukin-6, tumor necrosis factor alpha, total testosterone, dehydroepiandrosterone, sexual hormones binding globulin, leptin, adiponectin and insulin-like growth factor 1, the free-androgen index, free and available testosterone, and homeostatic model assessment index were calculated...
2017: Gaceta Médica de México
https://www.readbyqxmd.com/read/29090232/clinical-significance-of-serum-il-6-and-tnf-%C3%AE-levels-in-patients-with-metabolic-syndrome
#7
Mojgan Mohammadi, Mohammad Hossein Gozashti, Majid Aghadavood, Mohammad Reza Mehdizadeh, Mohammad Mahdi Hayatbakhsh
BACKGROUND: Several components of metabolic syndrome (MetS) facilitate its diagnosis, including abdominal obesity, hyperlipidemia, high blood pressure, and insulin resistance. The production of interleukin-6 (IL-6) and tumor necrosis factor-alpha (TNF-α) seem to be associated with MetS components. The aim of this study was to evaluate the correlation between IL-6 and TNF-α serum levels with MetS and its components. METHODS: This case-control study investigated 250 subjects, comprising 125 healthy controls from the Kerman Blood Transfusion Organization and 125 MetS patients...
October 2017: Reports of Biochemistry & Molecular Biology
https://www.readbyqxmd.com/read/29056829/low-circulating-trail-levels-are-associated-with-increase-of-resistin-and-lipocalin-2-ngal-adipokines-in-postmenopausal-women
#8
Veronica Tisato, Paola Secchiero, Gloria Bonaccorsi, Carlo Bergamini, Pantaleo Greco, Giorgio Zauli, Carlo Cervellati
OBJECTIVE: Tumor necrosis factor- (TNF-) related apoptosis-inducing ligand (TRAIL) is attracting attention for its role in the physiopathology of metabolic disease/diabetes. Evidence suggests that it might protect against metabolic abnormalities driven by obesity-induced dysregulated secretion of adipokines, but this role of TRAIL has not yet been fully established. On this basis, we aimed to investigate the potential association between TRAIL and adipokine levels in a cohort of subjects in which age/gender/hormonal interferences were excluded...
2017: Mediators of Inflammation
https://www.readbyqxmd.com/read/28994813/a-primary-human-trophoblast-model-to-study-the-effect-of-inflammation-associated-with-maternal-obesity-on-regulation-of-autophagy-in-the-placenta
#9
Bailey Simon, Matthew Bucher, Alina Maloyan
Maternal obesity is associated with an increased risk of adverse perinatal outcomes that are likely mediated by compromised placental function that can be attributed to, in part, the dysregulation of autophagy. Aberrant changes in the expression of autophagy regulators in the placentas from obese pregnancies may be regulated by inflammatory processes associated with both obesity and pregnancy. Described here is a protocol for sampling of villous tissue and isolation of villous cytotrophoblasts from the term human placenta for primary cell culture...
September 27, 2017: Journal of Visualized Experiments: JoVE
https://www.readbyqxmd.com/read/28989568/expression-of-matrix-metalloproteinase-11-is-increased-under-conditions-of-insulin-resistance
#10
Biagio Arcidiacono, Eusebio Chiefari, Anna Elisa Laria, Sebastiano Messineo, Francesco Luciano Bilotta, Domenico Britti, Daniela Patrizia Foti, Anna Foryst-Ludwig, Ulrich Kintscher, Antonio Brunetti
AIM: To investigate matrix metalloproteinase-11 (MMP-11) expression in adipose tissue dysfunction, using in vitro and in vivo models of insulin resistance. METHODS: Culture of mouse 3T3-L1 preadipocytes were induced to differentiation into mature 3T3-L1 adipocytes. Cellular insulin resistance was induced by treating differentiated cultured adipocytes with hypoxia and/or tumor necrosis factor (TNF)-α, and transcriptional changes were analyzed in each condition thereafter...
September 15, 2017: World Journal of Diabetes
https://www.readbyqxmd.com/read/28978869/vitamin-d-receptor-gene-variation-dietary-intake-and-bone-mineral-density-in-obese-women-a-cross-sectional-study
#11
Sajjad Moradi, Leila Khorrami-Nezhad, Zhila Maghbooli, Banafshe Hosseini, Seyed Ali Keshavarz, Khadijeh Mirzaei
Osteoporosis and fragility fractures have been regarded as important public health concerns. We investigated their possible association with vitamin D receptor (VDR) FOK1 polymorphisms (rs10735810) and dietary parameters such as calcium and vitamin D intake. A total of 264 Iranian obese women (BMI>30 kg/m(2)) were categorized based on the FOK1 genotype and divided into two groups: group one with the FF genotype (n=184) and the f allele carrier group with the Ff or ff genotype (n=80). The body composition, dietary intake and bone mineral density were assessed for all cases...
2017: Journal of Nutritional Science and Vitaminology
https://www.readbyqxmd.com/read/28966617/peripheral-autoimmune-regulator-induces-exhaustion-of-cd4-and-cd8-effector-t-cells-to-attenuate-autoimmune-diabetes-in-non-obese-diabetic-mice
#12
Divakar Kulshrestha, Li-Tzu Yeh, Ming-Wei Chien, Feng-Cheng Chou, Huey-Kang Sytwu
Autoimmune regulator (Aire) is one of the most crucial genes expressed in the thymus, where it orchestrates the promiscuous expression and presentation of tissue-specific antigens during thymocyte selection. The presence of Aire-expressing cells outside the thymus points toward its plausible extrathymic functions; however, the relative contribution of Aire-expressing cells of hematopoietic origin and their role in the modulation of autoimmune diseases are still obscure. Here, we report that non-obese diabetic mice with transgenic Aire expression under the control of the CD11c (integrin alpha X) promoter were significantly protected from autoimmune diabetes compared with their non-transgenic littermates...
2017: Frontiers in Immunology
https://www.readbyqxmd.com/read/28933980/panduratin-a-prevents-tumor-necrosis-factor-alpha-induced-muscle-atrophy-in-l6-rat-skeletal-muscle-cells
#13
Bo-Kyung Sa, Changhee Kim, Mi-Bo Kim, Jae-Kwan Hwang
Panduratin A, a prenylated chalcone compound, has anti-obesity, anti-bacterial, anti-cancer, anti-inflammatory, and anti-oxidative activities. However, its preventive effect on muscle atrophy has not been studied. The purpose of this study was to evaluate the inhibitory effect of panduratin A on muscle atrophy and to investigate its molecular mechanisms in tumor necrosis factor-alpha (TNF-α)-treated L6 rat skeletal muscle cells. Panduratin A restored the myotube diameter reduced by TNF-α. At the molecular level, panduratin A elevated phosphatidylinositol 3 kinase/Akt/mammalian target of rapamycin pathway and stimulated the MyoD and myogenin mRNA expression decreased by TNF-α...
September 21, 2017: Journal of Medicinal Food
https://www.readbyqxmd.com/read/28923316/different-combinations-of-maternal-and-postnatal-diet-are-reflected-in-changes-of-hepatic-parenchyma-and-hepatic-tnf-alpha-expression-in-male-rat-offspring
#14
Željka Perić Kačarević, Anđela Grgić, Darija Šnajder, Nikola Bijelić, Tatjana Belovari, Olga Cvijanović, Valerija Blažičević, Radivoje Radić
Obesity is related to increased TNF-alpha production in different tissues. TNF-alpha is connected to mitochondrial dysfunction in the liver and also development of fatty infiltration of the liver. Also, postnatal change from normal to high-fat diet causes a significant increase in TNF-alpha serum levels. The aim of this research was to determine how maternal diet and switching male offspring to a different dietary regime after lactation influences rat liver. Ten female Sprague Dawley rats at nine weeks of age were randomly divided in two groups and fed either standard laboratory chow or high-fat diet during six weeks, and then mated with the same male subject...
September 15, 2017: Acta Histochemica
https://www.readbyqxmd.com/read/28894050/compounds-of-psoriasis-with-obesity-and-overweight
#15
Agnieszka Owczarczyk-Saczonek, Waldemar Placek
Many epidemiological studies have confirmed the relationship of obesity and psoriasis, and it is believed that obesity is an independent risk factor for its development and is associated with a worse prognosis. Furthermore, the reduction of body weight, using low-calorie diet combined with exercise, reduces the severity of psoriasis.Visceral adipose tissue is the largest endocrine organ, producing proinflammatory cytokines (TNF-α, IL-6, IL-17) and adipokines (adiponectin, omentin, chemerin). They participate in the development of dyslipidemia, insulin resistance, diabetes, and consequently of the cardiovascular diseases...
August 24, 2017: Postȩpy Higieny i Medycyny Doświadczalnej
https://www.readbyqxmd.com/read/28855812/tnf-alpha-308g-a-and-238g-a-polymorphisms-and-its-protein-network-associated-with-type-2-diabetes-mellitus
#16
Kaiser Jamil, Archana Jayaraman, Javeed Ahmad, Sindhu Joshi, Shiva Kumar Yerra
Several reports document the role of tumor necrosis factor alpha (TNF-α) and lipid metabolism in the context of acute inflammation as a causative factor in obesity-associated insulin resistance and as one of the causative parameter of type 2 diabetes mellitus (T2DM). Our aim was to investigate the association between -308G/A and -238G/A polymorphisms located in the promoter region of the TNF-α gene in T2DM in the Indian population with bioinformatics analysis of TNF-α protein networking with an aim to find new target sites for the treatment of T2DM...
September 2017: Saudi Journal of Biological Sciences
https://www.readbyqxmd.com/read/28840647/incorporating-refractory-period-in-mechanical-stimulation-mitigates-obesity-induced-adipose-tissue-dysfunction-in-adult-mice
#17
Vihitaben S Patel, M Ete Chan, Gabriel M Pagnotti, Danielle M Frechette, Janet Rubin, Clinton T Rubin
OBJECTIVE: The aim of this study was to determine whether inclusion of a refractory period between bouts of low-magnitude mechanical stimulation (LMMS) can curb obesity-induced adipose tissue dysfunction and sequelae in adult mice. METHODS: A diet-induced obesity model that included a diet with 45% of kilocalories from fat was employed with intention to treat. C57BL/6J mice were weight matched into four groups: low-fat diet (LFD, n = 8), high-fat diet (HFD, n = 8), HFD with one bout of 30-minute LMMS (HFDv, n = 9), and HFD with two bouts of 15-minute LMMS with a 5-hour separation (refractory period, RHFDv, n = 9)...
October 2017: Obesity
https://www.readbyqxmd.com/read/28839361/ethanolic-fraction-of-terminalia-tomentosa-attenuates-biochemical-and-physiological-derangements-in-diet-induced-obese-rat-model-by-regulating-key-lipid-metabolizing-enzymes-and-adipokines
#18
Balaji Meriga, Parim Brahma Naidu, Ganjayi Muniswamy, Gen Hanuma Kumar, Ramavat Ravindar Naik, Suresh Pothani
The prevalence of overweight-obesity and associated comorbidities have reached alarming levels necessitating the need to explore effective therapeutics. In the present work, we demonstrated the promising antiobesity activity of ethanolic fraction of Terminalia tomentosa bark (EFTT) in diet induced obese rat model. High Fat Diet (HFD)-fed obese rats were orally administered with EFTT (50, 100 and 200 mg/kg body weight). Changes in body weight, body composition, bone mineral concentration, bone mineral density, plasma glucose, insulin, leptin, adiponectin, circulatory and tissue lipid profiles, and the activities of liver antioxidant enzymes, key lipid metabolic enzymes and mRNA expressions of fatty acid synthase (FAS), peroxisome proliferator-activated receptor gamma (PPAR-γ), leptin and tumor necrosis factor alpha (TNF-α) were assessed in experimental rats in the presence and absence of EFTT...
July 2017: Pharmacognosy Magazine
https://www.readbyqxmd.com/read/28793265/a-hepatic-gabp-ampk-axis-links-inflammatory-signaling-to-systemic-vascular-damage
#19
Katharina Niopek, Bilgen Ekim Üstünel, Susanne Seitz, Minako Sakurai, Annika Zota, Frits Mattijssen, Xiaoyue Wang, Tjeerd Sijmonsma, Yvonne Feuchter, Anna M Gail, Barbara Leuchs, Dominik Niopek, Oskar Staufer, Maik Brune, Carsten Sticht, Norbert Gretz, Karin Müller-Decker, Hans-Peter Hammes, Peter Nawroth, Thomas Fleming, Michael D Conkright, Matthias Blüher, Anja Zeigerer, Stephan Herzig, Mauricio Berriel Diaz
Increased pro-inflammatory signaling is a hallmark of metabolic dysfunction in obesity and diabetes. Although both inflammatory and energy substrate handling processes represent critical layers of metabolic control, their molecular integration sites remain largely unknown. Here, we identify the heterodimerization interface between the α and β subunits of transcription factor GA-binding protein (GAbp) as a negative target of tumor necrosis factor alpha (TNF-α) signaling. TNF-α prevented GAbpα and β complex formation via reactive oxygen species (ROS), leading to the non-energy-dependent transcriptional inactivation of AMP-activated kinase (AMPK) β1, which was identified as a direct hepatic GAbp target...
August 8, 2017: Cell Reports
https://www.readbyqxmd.com/read/28758596/effects-of-sleeve-gastrectomy-on-the-metabolic-profile-and-on-the-expression-of-renin-angiotensin-system-in-adipose-tissue-of-obese-rats
#20
Thaísa Soares Crespo, João Marcus Oliveira Andrade, Alanna Fernandes Paraíso, Deborah de Farias Lelis, Pablo Vinicyus Ferreira Chagas, Antônio Sérgio Barcala Jorge, Wagner Leite Ferreira, Alfredo Maurício Batista de Paula, André Luiz Sena Guimarães, Sérgio Henrique Sousa Santos
Sleeve gastrectomy (SG) has been used as a multipurpose surgical procedure for the treatment of obesity. The present study assessed the effects of SG on the metabolic and inflammatory profile and renin-angiotensin system (RAS) expression in the white adipose tissue of male rats with obesity induced by a high-fat diet. Male Wistar rats were treated with a standard diet or high-fat diet and submitted to SG or sham surgery. The glycemic and lipid profiles and gene expression of inflammatory markers and RAS components in adipose tissue were evaluated...
July 28, 2017: Protein and Peptide Letters
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