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https://www.readbyqxmd.com/read/29314270/association-of-leptin-with-disease-severity-and-inflammation-indicators-in-chinese-obese-children-with-allergic-rhinitis
#1
Wenlong Liu, Qingxiang Zeng, Lifeng Zhou, Renzhong Luo, Haipeng Dong
BACKGROUND: The prevalence of both obesity and allergic diseases in children has increased over the last several decades. However, the direct relationship between diverse allergic diseases and obesity has varied in different studies. Therefore, we aimed to examine the effect of obesity on the incidence and severity of allergic rhinitis (AR) and the possible key inflammation mediators during AR. METHODS: A total of 3,126 healthy students (without chronic diseases) were recruited from 14 randomly selected secondary schools in Guangzhou, China...
January 4, 2018: Pediatric Allergy and Immunology
https://www.readbyqxmd.com/read/29228364/age-dependent-changes-in-mean-and-variance-of-gene-expression-across-tissues-in-a-twin-cohort
#2
Ana Viñuela, Andrew A Brown, Alfonso Buil, Pei-Chien Tsai, Matthew N Davies, Jordana T Bell, Emmanouil T Dermitzakis, Timothy D Spector, Kerrin S Small
Changes in mean and variance of gene expression with age have consequences for healthy aging and disease development. Age-dependent changes in phenotypic variance have been associated to a decline in regulatory functions leading to increase in disease risk. Here we investigate age-related mean and variance changes in gene expression measured by RNA-seq of fat, skin, whole blood and derived lymphoblastoid cell lines (LCLs) expression from 855 adult female twins. We see evidence of up to 60% of age effects on transcription levels shared across tissues, and 47% of those on splicing...
December 8, 2017: Human Molecular Genetics
https://www.readbyqxmd.com/read/29212384/articular-and-subcutaneous-adipose-tissues-of-rheumatoid-arthritis-patients-represent-equal-sources-of-immunoregulatory-mesenchymal-stem-cells
#3
Urszula Skalska, Ewa Kuca-Warnawin, Anna Kornatka, Iwona Janicka, Urszula Musiałowicz, Tomasz Burakowski, Ewa Kontny
Adipose-derived mesenchymal stem cells (ASCs) have immunoregulatory properties, but their activity is dependent on signals provided by the local microenvironment. It is likely that highly inflammatory milieu of rheumatoid joint affects ASCs activity. To test this hypothesis, the function of rheumatoid ASCs derived from articular adipose tissue (AT-ASCs) and ASCs derived from subcutaneous adipose tissue (Sc-ASCs) has been analysed. Articular adipose tissue (infrapatellar fat pad) and subcutaneous adipose tissue (from the site of skin closure with sutures) were obtained from rheumatoid arthritis (RA) patients undergoing total knee joint replacement surgery...
December 6, 2017: Autoimmunity
https://www.readbyqxmd.com/read/29147700/brown-rice-and-retrograded-brown-rice-alleviate-inflammatory-response-in-dextran-sulfate-sodium-dss-induced-colitis-mice
#4
Kemika Praengam, Yuraporn Sahasakul, Piengchai Kupradinun, Siriwan Sakarin, Wanwisa Sanitchua, Anudep Rungsipipat, Kasem Rattanapinyopituk, Pornpimon Angkasekwinai, Khaimuk Changsri, Wuttichai Mhuantong, Sithichoke Tangphatsornruang, Siriporn Tuntipopipat
The present study was aimed to investigate the impacts of brown rice (BR) and retrograded brown rice (R-BR) consumption on colonic health and gut microbiota in dextran sulfate sodium (DSS) induced colitis mice. Thirty two female C57Bl/6Mlac mice were fed with modified AIN 93G diets by replacing cornstarch in the original composition with white rice (WR), BR and R-BR powder. The mice were divided into 4 groups and fed with the following experimental diets for 4 weeks: (1) negative control (WR: diet with WR), (2) positive control (DSS_WR: DSS and diet with WR), (3) DSS_BR: DSS and diet with BR, and (4) DSS_R-BR: DSS and diet with R-BR...
November 17, 2017: Food & Function
https://www.readbyqxmd.com/read/29136784/the-alternation-of-autophagy-apoptosis-in-cd4-cd25-foxp3-tregs-on-the-developmental-stages-of-atherosclerosis
#5
Yuling Tian, Xiao Liang, Yue Wu
Naturally regulatory T cells (Tregs) play a critical role in the regulation of T cell-mediated immune responses in atherosclerosis. However, the regulatory mechanism underlying Tregs upon long-term development of atherosclerosis remains unknown. Therefore, in this study, atherosclerotic model was induced in ApoE-/- mice by feeding fat-diet for 10 weeks. Quantification of atherosclerotic lesions was done by calculating the lesion size in the aortic sinus every 2 weeks. The lipid levels and inflammatory mediators were detected in serum sample...
November 8, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/29107124/genetic-inhibition-of-ppar%C3%AE-s112-phosphorylation-reduces-bone-formation-and-stimulates-marrow-adipogenesis
#6
Chunxi Ge, Guisheng Zhao, BinBin Li, Yan Li, William P Cawthorn, Ormond A MacDougald, Renny T Franceschi
A common feature of many skeletal diseases is the accumulation of marrow fat. A reciprocal relationship exists between osteogenesis and adipogenesis in bone marrow that is mediated by the relative activity of PPARγ and RUNX2 transcription factors. The ERK/MAPK pathway is an important inducer of MSC differentiation to osteoblasts and an inhibitor of adipogenesis that functions by phosphorylating RUNX2 and PPARγ. To begin to assess the importance of this regulation in vivo, we examined the consequences of blocking one arm of this pathway, PPARγ S112 phosphorylation, by evaluating the bone phenotype of PPARγ S112A mutant mice...
October 26, 2017: Bone
https://www.readbyqxmd.com/read/29106945/activation-of-the-sting-irf3-pathway-promotes-hepatocyte-inflammation-apoptosis-and-induces-metabolic-disorders-in-nonalcoholic-fatty-liver-disease
#7
J T Qiao, C Cui, L Qing, L S Wang, T Y He, F Yan, F Q Liu, Y H Shen, X G Hou, L Chen
BACKGROUND: Nonalcoholic fatty liver disease (NAFLD) is a common result of obesity and metabolic syndrome. Hepatocyte injury and metabolic disorders are hallmarks of NAFLD. Stimulator of interferon genes (STING) and its downstream factor interferon regulatory factor 3 (IRF3) trigger inflammatory reaction in response to the presence of cytosolic DNA. STING has recently been shown to play an important role in early alcoholic liver disease. However, little is known about the role of STING-IRF3 pathway in hepatocyte injury...
October 26, 2017: Metabolism: Clinical and Experimental
https://www.readbyqxmd.com/read/29105622/the-effects-of-t-helper-17-and-regulatory-t-cells-on-patients-with-carotid-atherosclerosis
#8
Bo Wang, Xiaopeng Wang, Huifang Sun, Lili Hu, Jianbo Gao
This study was aimed to observe the level of T helper 17 (Th17) cells and CD4(+) CD25(+) Foxp(3+) regulatory T cells (Tregs) and their related factors in carotid atherosclerosis (AS) patients and AS model rats to explore the influence of Th17 on the pathological process of AS and its specific mechanism. 60 cases with AS in our hospital from July 2012 to July 2014 were recruited for this study as the observation group, and 40 healthy people who came to the hospital for a physical examination were the control group...
September 2017: Pakistan Journal of Pharmaceutical Sciences
https://www.readbyqxmd.com/read/29089444/pre-synaptic-regulation-of-leptin-in-a-defined-lateral-hypothalamus-ventral-tegmental-area-neurocircuitry-depends-on-energy-state
#9
Jing-Jing Liu, Nicholas T Bello, Zhiping P Pang
Synaptic transmission controls information flow in the brain and expression of all brain-related behaviors, including food intake. Leptin, an adipocyte-derived hormone, acts on neurons located in the lateral hypothalamus (LHA) to maintain energy homeostasis and regulate food intake behavior. The specific synaptic mechanisms, cell types and neural projections mediating this effect remain unclear. In male mice, using pathway-specific retrograde tracing, whole cell patch clamp recordings and posthoc cell type identification, we found that leptin reduces excitatory synaptic strength onto both melanin-concentrating hormone (MCH) and orexin-expressing neurons projecting from the LHA to the ventral tegmental area (VTA), which may affect dopamine signaling and motivation for feeding...
October 31, 2017: Journal of Neuroscience: the Official Journal of the Society for Neuroscience
https://www.readbyqxmd.com/read/29056000/-the-progress-of-studying-the-mechanisms-of-immune-cells-in-the-regulation-of-non-alcoholic-fatty-liver-diseases
#10
Y Bao
Non-alcoholic fatty liver diseases (NAFLD) are liver diseases which are strongly associated with obesity. The incidence of NAFLD has been gradually increased in recent years. According to different pathology of the liver, NAFLD include three disease states: simple fatty liver, hepatitis (nonalcoholic steatohepatitis, NASH) and fatty liver cirrhosis. The accumulations of fat around the internal organs, which secrete a wide range of adipokines, such as interleukin-6, contribute the development and progress of NAFLD in obesity...
July 20, 2017: Zhonghua Gan Zang Bing za Zhi, Zhonghua Ganzangbing Zazhi, Chinese Journal of Hepatology
https://www.readbyqxmd.com/read/29055396/role-of-gut-microbiota-in-idiopathic-nephrotic-syndrome-in-children
#11
Kazunari Kaneko, Shoji Tsuji, Takahisa Kimata
Nephrotic syndrome characterized by heavy proteinuria and edema is the most common chronic kidney disease in children. It is classified into three categories, of which the idiopathic type accounts for the vast majority of cases. As indicated by the name, the etiology of idiopathic nephrotic syndrome remains unknown though it has been suggested that impaired T cell function is involved. Recently, evidence has mounted to suggest that dysfunction in regulatory T cells plays an important role in the development of allergic disease, a recognized comorbid condition for children with idiopathic nephrotic syndrome...
October 2017: Medical Hypotheses
https://www.readbyqxmd.com/read/29043005/impact-of-supplementation-with-a-food-derived-microbial-community-on-obesity-associated-inflammation-and-gut-microbiota-composition
#12
Marianna Roselli, Chiara Devirgiliis, Paola Zinno, Barbara Guantario, Alberto Finamore, Rita Rami, Giuditta Perozzi
BACKGROUND: Obesity is a complex pathology associated with dysbiosis, metabolic alterations, and low-grade chronic inflammation promoted by immune cells, infiltrating and populating the adipose tissue. Probiotic supplementation was suggested to be capable of counteracting obesity-associated immune and microbial alterations, based on its proven immunomodulatory activity and positive effect on gut microbial balance. Traditional fermented foods represent a natural source of live microbes, including environmental strains with probiotic features, which could transiently colonise the gut...
2017: Genes & Nutrition
https://www.readbyqxmd.com/read/28983592/amygdalin-ameliorates-the-progression-of-atherosclerosis-in-ldl-receptor%C3%A2-deficient-mice
#13
Jianzhen Lv, Wen Xiong, Tiantian Lei, Hailian Wang, Minghan Sun, Erwei Hao, Zhiping Wang, Xiaoqi Huang, Shaoping Deng, Jiagang Deng, Yi Wang
Previous studies have demonstrated that regulatory T cells (Tregs) are pivotal in the regulation of T cell‑mediated immune responses in atherosclerosis, a chronic autoimmune‑like disease. In the authors' previous studies, it was demonstrated that amygdalin ameliorated atherosclerosis by the regulation of Tregs in apolipoprotein E‑deficient (ApoE‑/‑) mice. Therefore, the aim of the present study was to investigate the therapeutic effect of amygdalin on low‑density lipoprotein (LDL) receptor deficient (LDLR‑/‑) mice, and to examine its immune regulatory function by the stimulation of Tregs...
December 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/28762561/diet-induced-obesity-causes-visceral-but-not-subcutaneous-lymph-node-hyperplasia-via-increases-in-specific-immune-cell-populations
#14
A M Magnuson, D P Regan, J K Fouts, A D Booth, S W Dow, M T Foster
OBJECTIVES: The spatial proximity of adipose depots to secondary lymph nodes allows a unique relation between the two systems. Obesity, predominately visceral adiposity, links to numerous diseases; hence, we postulate that secondary lymphatics within this region contributes to disease risk. MATERIAL AND METHODS: Male C57BL/6 mice were fed standard CHOW (18% kcal fat) or Western diet (45% kcal fat) for 7 weeks. Visceral and subcutaneous lymph nodes and associated adipose depots they occupy were excised...
October 2017: Cell Proliferation
https://www.readbyqxmd.com/read/28757363/poly-i-c-alleviates-obesity-related-pro-inflammatory-status-and-promotes-glucose-homeostasis
#15
Ying-Hui Wang, Yu-Gen Zhang
Obesity associated insulin resistance (IR) is implicated in chronic inflammation that mediated by the immune system. Imbalance between anti-inflammatory and pro-inflammatory response contributes to the origins and drivers of IR. However, cells of innate and adaptive immune system participate in the pathogenesis of IR, while glucose homeostasis related immune tolerance could be compromised high fat diet (HFD) reduced metabolic disorder. Although previous studies have demonstrated that anti-inflammatory therapy has a protective role in alleviating the pro-inflammatory status in HFD induced IR, the precise mechanism is still unclear...
July 27, 2017: Cytokine
https://www.readbyqxmd.com/read/28736524/immune-and-metabolic-regulation-mechanism-of-dangguiliuhuang-decoction-against-insulin-resistance-and-hepatic-steatosis
#16
Hui Cao, Lingling Tuo, Yali Tuo, Ziyun Xia, Rong Fu, Yang Liu, Yihong Quan, Jue Liu, Zhihong Yu, Ming Xiang
Dangguiliuhuang decoction (DGLHD) is a traditional Chinese medicine (TCM) formula, which mainly consists of angelica, radix rehmanniae, radix rehmanniae praeparata, scutellaria baicalensis, coptis chinensis, astragalus membranaceus, and golden cypress, and used for the treatment of diabetes and some autoimmune diseases. In this study, we explored the potential mechanism of DGLHD against insulin resistance and fatty liver in vivo and in vitro. Our data revealed that DGLHD normalized glucose and insulin level, increased the expression of adiponectin, diminished fat accumulation and lipogenesis, and promoted glucose uptake...
2017: Frontiers in Pharmacology
https://www.readbyqxmd.com/read/28736203/oral-administration-of-visceral-adipose-tissue-antigens-ameliorates-metabolic-disorders-in-mice-and-elevates-visceral-adipose-tissue-resident-cd4-cd25-foxp3-regulatory-t-cells
#17
Xiangyu Chen, Dali Zhang, Xiaoling Chen, Gang Meng, Qian Zheng, Wenli Mai, Yuzhang Wu, Lilin Ye, Li Wang
Obesity and type 2 diabetes are linked with chronic, low-grade inflammation in visceral adipose tissue (VAT). A unique population of VAT-resident CD4(+)Foxp3(+) Tregs plays a crucial role in regulating VAT inflammation and metabolic homeostasis. VAT-resident Tregs display a highly restricted TCR repertoire, suggesting they recognize certain autoantigen(s) in VAT. A dramatic reduction of VAT-resident Tregs has been shown to closely correlate with obesity-related VAT chronic inflammation and metabolic disorders...
August 16, 2017: Vaccine
https://www.readbyqxmd.com/read/28726642/coordinated-transcriptional-control-of-adipocyte-triglyceride-lipase-atgl-by-transcription-factors-sp1-and-peroxisome-proliferator-activated-receptor-%C3%AE-ppar%C3%AE-during-adipocyte-differentiation
#18
Debasish Roy, Kenneth T Farabaugh, Jing Wu, Alyssa Charrier, Cynthia Smas, Maria Hatzoglou, Kavitha Thirumurugan, David A Buchner
The breakdown of stored fat deposits into its components is a highly regulated process that maintains plasma levels of free fatty acids to supply energy to cells. Insulin-mediated transcription of Atgl, the enzyme that mediates the rate-limiting step in lipolysis, is a key point of this regulation. Under conditions such as obesity or insulin resistance, Atgl transcription is often misregulated, which can contribute to overall disease progression. The mechanisms by which Atgl is induced during adipogenesis are not fully understood...
September 8, 2017: Journal of Biological Chemistry
https://www.readbyqxmd.com/read/28659029/the-mixture-of-anemarrhena-asphodeloides-and-coptis-chinensis-attenuates-high-fat-diet-induced-colitis-in-mice
#19
Su-Min Lim, Hyun-Sik Choi, Dong-Hyun Kim
Anemarrhena asphodeloides (AA, family Liliaceae) inhibits macrophage activation by inhibiting IRAK1 phosphorylation and helper T (Th)17 differentiation. Coptis chinensis (CC, family Ranunculaceae), which inhibits macrophage activation by inhibiting the binding of lipopolysaccharide (LPS) on toll-like receptor 4 and inducing regulatory T (Treg) cell differentiation. The mixture of AA and CC (AC-mix) synergistically attenuates 2,4,6-trinitrobenzenesulfonic acid or dextran sulfate sodium-induced colitis in mice by inhibiting NF-[Formula: see text]B activation and regulating Th17/Treg balance...
2017: American Journal of Chinese Medicine
https://www.readbyqxmd.com/read/28646856/the-imbalance-of-th17-treg-cells-is-involved-in-the-progression-of-nonalcoholic-fatty-liver-disease-in-mice
#20
Beihui He, Liyan Wu, Wei Xie, Yitong Shao, Jianping Jiang, Zhenzhong Zhao, Maoxiang Yan, Zhiyun Chen, Dawei Cui
BACKGROUND: Non-alcoholic fatty liver disease (NAFLD) is a common, chronic liver disease worldwide. Recent studies have shown that T helper (Th) 17 and regulatory T (Treg) cells play critical roles in various disorders of liver inflammation. Here, we explored the value of polyene phosphatidylcholine capsules (PPC) for regulating the imbalance of Th17/Treg cells in the pathogenesis of mice with NAFLD. METHODS: C57BL/6 mice were randomly divided into three groups as follows:normal diet (ND), high-fat diet (HF),and HF plus PPC(HF + PPC)...
June 24, 2017: BMC Immunology
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