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IL-1B and obesity

Ping Jiang, Dufang Ma, Xue Wang, Yongcheng Wang, Yuxin Bi, Jinlong Yang, Xuebing Wang, Xiao Li
Low-grade pro-inflammatory state and leptin resistance are important underlying mechanisms that contribute to obesityassociated hypertension. We tested the hypothesis that Astragaloside IV (As IV), known to counteract obesity and hypertension, could prevent obesity-associated hypertension by inhibiting pro-inflammatory reaction and leptin resistance. High-fat diet (HFD) induced obese rats were randomly assigned to three groups: the HFD control group (HF con group), As IV group, and the As IV + α-bungaratoxin (α-BGT) group (As IV+α-BGT group)...
March 20, 2018: Molecules and Cells
Katharina Bröker, Julia Figge, Albert F Magnusen, Rudolf A Manz, Jörg Köhl, Christian M Karsten
B-1 cells constitute a unique subpopulation of lymphocytes residing mainly in body cavities like the peritoneal cavity (PerC) but are also found in spleen and bone marrow (BM). As innate-like B cells, they mediate first line immune defense through low-affinity natural IgM (nIgM) antibodies. PerC B-1 cells can egress to the spleen and differentiate into nIgM antibody-secreting plasma cells that recognize conserved exogenous and endogenous cellular structures. Homing to and homeostasis within the PerC are regulated by the chemokine CXCL13 released by PerC macrophages and stroma cells...
2018: Frontiers in Immunology
Stefano Ciciliot, Mattia Albiero, Stefano Campanaro, Nicol Poncina, Serena Tedesco, Valentina Scattolini, Francesca Dalla Costa, Andrea Cignarella, Monica Vettore, Iole Maria Di Gangi, Sara Bogialli, Angelo Avogaro, Gian Paolo Fadini
The 66 kDa isoform of the mammalian Shc gene promotes adipogenesis, and p66Shc-/- mice accumulate less body weight than wild-type (WT) mice. As the metabolic consequences of the leaner phenotype of p66Shc-/- mice is debated, we hypothesized that gut microbiota may be involved. We confirmed that p66Shc-/- mice gained less weight than WT mice when on a high-fat diet (HFD), but they were not protected from insulin resistance and glucose intolerance. p66Shc deletion significantly modified the composition of gut microbiota and their modification after an HFD...
February 21, 2018: FASEB Journal: Official Publication of the Federation of American Societies for Experimental Biology
Noriko Shimoura, Hiroshi Nagai, Susumu Fujiwara, Haruki Jimbo, Chikako Nishigori
Accumulating evidence suggests that psoriasis is frequently accompanied by metabolic disorders, such as obesity and diabetes. However, the mechanisms underlying the association between increased psoriasis severity and concomitant metabolic syndrome have not been fully clarified. Herein, we show that imiquimod-induced psoriasiform inflammation was exacerbated and prolonged in diabetic obese mice compared to that in control mice, accompanied by remarkably increased lesional expressions of Cxcl5 and Il-1b. Notably, a large number of CXCL5+ Ly6G+ cells infiltrated the dermis and subcutaneous fat tissue of the diabetic obese mice...
April 2018: Journal of Investigative Dermatology
C Miethe, H Nix, R Martin, A R Hernandez, R S Price
Obesity is associated with non-alcoholic steatohepatitis (NASH) and hepatocellular carcinoma (HCC). Obesity and metabolic abnormalities resulting in low-grade inflammation can increase the risk of developing NASH and HCC. NASH, a risk factor for HCC, is characterized by increased inflammation, lipid accumulation, and liver injury. Obesogenic proteins modulate signaling pathways that induce physiological changes including lipogenesis, ROS, and inflammation. Silibinin, a polyphenol in milk thistle seed, has been shown to have anti-inflammatory properties...
November 2017: Nutrition and Cancer
Otilia Perichart-Perera, Cinthya Muñoz-Manrique, Angélica Reyes-López, Maricruz Tolentino-Dolores, Salvador Espino Y Sosa, Ma Cristina Ramírez-González
BACKGROUND/AIMS: Obesity during pregnancy increases the risk of adverse clinical outcomes and is associated with low-grade chronic inflammation. We describe maternal metabolic risk and inflammation by maternal weight status, and evaluate the association of metabolic and inflammatory markers with birthweight in a group of pregnant Mexican women. METHODS: This study derived from a prospective cohort of healthy pregnant women <14 weeks of gestation, receiving prenatal care at National Institute of Perinatology (Mexico, 2009-2013)...
2017: PloS One
Irene Cantero, Itziar Abete, Nancy Babio, Fernando Arós, Dolores Corella, Ramón Estruch, Montse Fitó, James R Hebert, M Ángel Martínez-González, Xavier Pintó, M Puy Portillo, Miguel Ruiz-Canela, Nitin Shivappa, Julia Wärnberg, Enrique Gómez-Gracia, J Antoni Tur, Jordi Salas-Salvadó, M Angeles Zulet, J Alfredo Martínez
BACKGROUND & AIMS: To assess the possible association between a validated Dietary Inflammatory Index (DII) and specific dietary components with suitable non-invasive markers of liver status in overweight and obese subjects within the PREDIMED study. METHODS: A cross-sectional study encompassing 794 randomized overweight and obese participants (mean ± SD age: 67.0 ± 5.0 y, 55% females) from the PREDIMED (PREvención con DIeta MEDiterránea) trial was conducted...
July 6, 2017: Clinical Nutrition: Official Journal of the European Society of Parenteral and Enteral Nutrition
Kathleen A Griffith, Seon-Yoon Chung, Shijun Zhu, Alice S Ryan
OBJECTIVE: After chemotherapy for breast cancer, Black women gain more weight and have an increased mortality rate compared with White women. Our study objective was to compare biomarkers associated with obesity in Black women with and without a history of breast cancer. DESIGN: Case-control. SETTING: Academic/federal institution. PARTICIPANTS: Black women with a history of breast cancer (cases) and age-matched controls...
October 20, 2016: Ethnicity & Disease
William D Bennett, Sally Ivins, Neil E Alexis, Jihong Wu, Philip A Bromberg, Sukhdev S Brar, Gregory Travlos, Stephanie J London
We previously observed greater ozone-induced lung function decrements in obese than non-obese women. Animal models suggest that obesity enhances ozone-induced airway reactivity and inflammation. In a controlled exposure study, we compared the acute effect of randomized 0.4ppm ozone and air exposures (2 h with intermittent light exercise) in obese (N = 20) (30<BMI<40Kg/m2) vs. non-obese (N = 20) (BMI<25Kg/m2) non-smoking 18-35 year old women. We measured spirometry and bronchial reactivity to inhaled methacholine (3h post-exposure)...
2016: PloS One
O O Znoyko, K R Dudina, A N Kozina, O V Kalininа, N D Yushchuk
The paper describes a case of ineffective dual antiviral therapy (pegylated interferon and ribavirin) in a patient with chronic hepatitis C infected with hepatitis C virus (HCV) genotype 2 according to the data from the use of a commercial test system. Analysis of the predictors of failure of antiviral therapy (AVT) (the HCV recombinant variant RF2k/1b, a high viral load before the start of therapy, an unfavorable IL-28B genotype, a high body mass index, and a need for a lower ribavirin dose after 12 weeks of AVT because of adverse reactions for less than 4 weeks) in this patient has shown that no virological response is mainly associated with the presence of the HCV recombinant variant, the treatment effectiveness of which is comparable with that in HCV genotype 1 and obesity...
2016: Terapevticheskiĭ Arkhiv
Isabel Moreno-Indias, Wilfredo Oliva-Olivera, Antonio Omiste, Daniel Castellano-Castillo, Said Lhamyani, Antonio Camargo, Francisco J Tinahones
Discordant phenotypes, metabolically healthy obese and unhealthy normal-weight individuals, are always interesting to provide important insights into the mechanistic link between adipose tissue dysfunction and associated metabolic alterations. Macrophages can release factors that impair the proper activity of the adipose tissue. Thus, studying subcutaneous and visceral adipose tissues, we investigated for the first time the differences in monocyte/macrophage infiltration, inflammation, and adipogenesis of normal-weight subjects who differed in their degree of metabolic syndrome...
June 2016: Translational Research: the Journal of Laboratory and Clinical Medicine
Luisa Vonghia, Thea Magrone, An Verrijken, Peter Michielsen, Luc Van Gaal, Emilio Jirillo, Sven Francque
BACKGROUND: Haemodynamic impairment, inflammatory mediators and glucose metabolism disturbances have been implicated in the pathogenesis of Non-Alcoholic Fatty Liver Disease (NAFLD). AIM: To investigate the cytokine profile in NAFLD patients in peripheral (P) and hepatic venous (HV) blood and to compare with histology, haemodynamic and metabolic parameters. METHODS: 40 obese patients with an indication for a transjugular liver biopsy were enrolled...
2015: PloS One
Sunsil Choi, Ji-Eun Jung, Yong Ryoul Yang, Eun-Sun Kim, Hyun-Jun Jang, Eung-Kyun Kim, Il Shin Kim, Joo-Young Lee, Joong Kwan Kim, Jeong Kon Seo, Jung-Min Kim, Jiyoung Park, Pann-Ghill Suh, Jang Hyun Choi
Chronic inflammation in adipose tissue is highly associated with insulin resistance. Herein, we demonstrate that a novel modification of PPARγ is strongly associated with inflammatory responses in adipose tissue. c-Src kinase directly phosphorylated PPARγ at Tyr78, and this process was reversed by protein tyrosine phosphatase-1B (PTP-1B). In adipocytes, phosphorylation of PPARγ suppressed the expression of pro-inflammatory genes as well as the secretion of chemokines and cytokines, thus reducing macrophage migration...
December 2015: Cellular Signalling
O Honchar, T Ashcheulova, O Kovalyova
OBJECTIVE: To investigate interrelations between interleukin 33 (IL-33) and 1B (IL-1B) serum levels and common carotid arteries (CCA) remodeling in hypertensive patients with obesity. DESIGN AND METHOD: 80 hypertensive patients (51 obese) have been observed. An ultrasound examination of CCA with estimation of its geometrical type was performed (cut-off value for vascular wall hypertrophy was vascular segment mass >0,275 g/cm, concentric remodeling was diagnosed with relative wall thickness of CCA >0,2)...
June 2015: Journal of Hypertension
Danielle Camer, Yinghua Yu, Alexander Szabo, Chi H L Dinh, Hongqin Wang, Licai Cheng, Xu-Feng Huang
High-fat (HF) diet-induced obesity is a major risk factor for the development of insulin resistance and hepatic steatosis. We examined the hypothesis that bardoxolone methyl (BM) would prevent the development of insulin resistance and hepatic steatosis in mice fed a HF diet. C57BL/6J male mice were fed a lab chow (LC), HF (40% fat), or HF diet supplemented with 10 mg/kg/day BM orally for 21 weeks. Glucose metabolism was assessed using a glucose tolerance test (GTT) and insulin sensitivity test (IST). Signalling molecules involved in insulin resistance, inflammation, and lipid metabolism were examined in liver tissue via western blotting and RT-PCR...
September 5, 2015: Molecular and Cellular Endocrinology
L Baril-Gravel, M-E Labonté, P Couture, M-C Vohl, A Charest, V Guay, D A Jenkins, P W Connelly, S West, P M Kris-Etherton, P J Jones, J A Fleming, B Lamarche
BACKGROUND AND AIMS: Little is known about the effect of various dietary fatty acids on pro- and anti-inflammatory processes. We investigated the effect of 5 oils containing various amounts of alpha-linolenic acid (ALA), linoleic acid (LA), oleic acid (OA) and docosahexaenoic acid (DHA) on plasma inflammatory biomarkers and expression levels of key inflammatory genes and transcription factors in whole blood cells. METHODS AND RESULTS: In a randomized, crossover controlled nutrition intervention, 114 adult men and women with abdominal obesity and at least one other criterion for the metabolic syndrome consumed 5 experimental isoenergetic diets for 4 weeks each, separated by 4-week washout periods...
January 2015: Nutrition, Metabolism, and Cardiovascular Diseases: NMCD
O A Gudbrandsen, Y Kodama, S A Mjøs, C-M Zhao, H Johannessen, H-R Brattbakk, C Haugen, B Kulseng, G Mellgren, D Chen
BACKGROUND: A combined procedure of sleeve gastrectomy and duodenal switch (SG+DS) has been applied to the treatment of super obesity. The aim of the present study was to test whether duodenal switch alone (DS) leads to similar weight loss and changes in lipid metabolism as SG+DS. METHODS: Male Sprague-Dawley rats underwent sham surgery (Sham, N=7), duodenal switch alone (DS, N=5) or sleeve gastrectomy followed by duodenal switch (SG+DS, N=5). Body weight, feed and water intakes, and ambulatory activity were recorded 2 months post surgery...
2014: Nutrition & Diabetes
Mohammad Nasir Uddin, Govinda Sharma, Jun-Li Yang, Hong Seok Choi, Seong-Il Lim, Keon Wook Kang, Won Keun Oh
Protein tyrosine phosphatase 1B (PTP1B) plays a key role in metabolic signaling, thereby making it an exciting drug target for type 2 diabetes and obesity. Besides, there is substantial evidence that shows its overexpression is involved in breast cancer, which suggests that selective PTP1B inhibition might be effective in breast cancer treatment. As part of our continuous research on PTP1B inhibitors from medicinal plants, four oleanane-type triterpenes were isolated from an EtOAc-soluble extract of fruit peels of Camellia japonica (Theaceae), together with 6 previously known compounds of this class...
July 2014: Phytochemistry
X F Qi, T J Feng, P Yang, H Y Feng, P Zhang, L Y Kong, D L Liang, P F Li, W Na, Y W Li, Y Wang
We aimed to investigate the association of inflammation-related genes such as IL-10, IL-6 and IL-1B with risk of ischemic stroke. We included 426 cases with ischemic stroke and 426 health controls from Xinxiang, China. Genomic DNA was extracted from the buffy coat layer of collected blood with the TIANamp blood DNA kit. Diabetes, hypertension, obesity, and smoking habits were associated with risk of ischemic stroke. We found that individuals carrying the CC genotype of IL-1B rs1864169 had a higher risk of ischemic stroke when compared with the TT genotype (OR = 1...
2014: Genetics and Molecular Research: GMR
Evgeniy Panzhinskiy, Yinan Hua, Paul A Lapchak, Elena Topchiy, Teresa E Lehmann, Jun Ren, Sreejayan Nair
Type 2 diabetes is growing at epidemic proportions, and pharmacological interventions are being actively sought. This study examined the effect of a novel neuroprotective curcuminoid, CNB-001 [4-((1E)-2-(5-(4-hydroxy-3-methoxystyryl-)-1-phenyl-1H-pyrazoyl-3-yl)vinyl)-2-methoxy-phenol], on glucose intolerance and insulin signaling in high-fat diet (HFD)-fed mice. C57BL6 mice (5-6 weeks old) were randomly assigned to receive either a HFD (45% fat) or a low-fat diet (LFD, 10% fat) for 24 weeks, together with CNB-001 (40 mg/kg i...
May 2014: Journal of Pharmacology and Experimental Therapeutics
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