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https://www.readbyqxmd.com/read/28328066/maternal-obesity-and-inflammatory-mediators-a-controversial-association
#1
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/28323998/genes-outside-the-major-histocompatibility-complex-mhc-locus-are-linked-to-the-development-of-thyroid-autoantibodies-and-thyroiditis-in-nod-h2h4-mice
#2
Sandra M McLachlan, Sylvie Lesage, Roxanne Collin, Bianca Banuelos, Holly A Aliesky, Basil Rapoport
Thyroiditis and autoantibodies to thyroglobulin (TgAb) and thyroid peroxidase (TPOAb) develop spontaneously in NOD.H2h4 mice, a phenotype enhanced by dietary iodine. NOD.H2h4 mice were derived by introducing the Major Histocompatibility Class (MHC) molecule I-Ak from B10.A(4R) mice to non-obese diabetic (NOD) mice. Apart from I-Ak, the genes responsible for the NOD.H2h4 phenotype are unknown. Extending serendipitous observations from crossing BALB/c to NOD.H2h4 mice, thyroid autoimmunity was investigated in both genders of the F1, F2 and the second generation backcross of F1 to NOD...
January 17, 2017: Endocrinology
https://www.readbyqxmd.com/read/28320771/the-effect-of-maternal-chromium-status-on-lipid-metabolism-in-female-elderly-mice-offspring-and-involved-molecular-mechanism
#3
Qian Zhang, Xiaofang Sun, Xinhua Xiao, Jia Zheng, Ming Li, Miao Yu, Fan Ping, Zhixin Wang, Cuijuan Qi, Tong Wang, Xiaojing Wang
Maternal malnutrition lead to the incidence of metabolic diseases in offspring. The purpose of this project was to exam whether maternal low chromium could disturb normal lipid metabolism in offspring, altering adipose cell differentiation and leading the incidence of lipid metabolism diseases, including metabolic syndrome and obesity. Female C57BL mice were given a control diet (CD) or a low chromium diet (LCD) during the gestational and lactation periods. After weaning, offspring was fed with CD or LCD. The female offspring were assessed at 32 weeks of age...
March 20, 2017: Bioscience Reports
https://www.readbyqxmd.com/read/28320596/phillyrin-lowers-body-weight-in-obese-mice-via-the-modulation-of-ppar-beta-delta-angptl-4-pathway
#4
Hong-Bo Xiao, Guo-Guang Sui, Xiang-Yang Lu
OBJECTIVE: Previous investigations have shown that the peroxisome proliferator activated receptor beta/delta (PPAR<beta>/<delta>)-angiopoietin-like protein 4 (ANGPTL4) pathways may be a new pharmacologic target for treatment of obesity. The present study was conducted to test the effect of phillyrin, ‎a glucoside, on obesity in mice. METHOD: Fifty mice were randomly divided into 5 groups (n=10): control group (C57BL/6J mice), obese mice group, two groups of obese mice treated with phillyrin (15 or 45mg/kg/day), one group of obese mice treated with PPAR<beta>/<delta> agonist GW0742 (3mg/kg/day)...
March 17, 2017: Obesity Research & Clinical Practice
https://www.readbyqxmd.com/read/28319103/microglia-activation-due-to-obesity-programs-metabolic-failure-leading-to-type-two-diabetes
#5
REVIEW
R Maldonado-Ruiz, L Montalvo-Martínez, L Fuentes-Mera, A Camacho
Obesity is an energy metabolism disorder that increases susceptibility to the development of metabolic diseases. Recently, it has been described that obese subjects have a phenotype of chronic inflammation in organs that are metabolically relevant for glucose homeostasis and energy. Altered expression of immune system molecules such as interleukins IL-1, IL-6, IL-18, tumor necrosis factor alpha (TNF-α), serum amyloid A (SAA), and plasminogen activator inhibitor-1 (PAI-1), among others, has been associated with the development of chronic inflammation in obesity...
March 20, 2017: Nutrition & Diabetes
https://www.readbyqxmd.com/read/28316379/high-fat-diet-alters-gut-microbiota-and-the-expression-of-paneth-cell-antimicrobial-peptides-preceding-changes-of-circulating-inflammatory-cytokines
#6
Xiulan Guo, Jinchao Li, Renyong Tang, Guodong Zhang, Huawei Zeng, Richard J Wood, Zhenhua Liu
Obesity is an established risk factor for many diseases including intestinal cancer. One of the responsible mechanisms is the chronic inflammation driven by obesity. However, it remains to be defined whether diet-induced obesity exacerbates the intestinal inflammatory status by cytokines produced in adipose tissue or the high fat diet first alters the gut microbiota and then drives intestinal inflammation. To address this question, we fed C57BL/6 mice with a high fat diet (HF, 60%) and sacrificed them sequentially after 8, 12, and 16 weeks, and then compositions of gut microbiota and expressions of antimicrobial peptides were determined...
2017: Mediators of Inflammation
https://www.readbyqxmd.com/read/28315336/streptozotocin-produces-oxidative-stress-inflammation-and-decreases-bdnf-concentrations-to-induce-apoptosis-of-rin5f-cells-and-type-2-diabetes-mellitus-in-wistar-rats
#7
Siresha Bathina, Nanduri Srinivas, Undurti N Das
BACKGROUND: Neurodegenerative disorders, such as deficits in learning, memory and cognition and Alzheimer's disease are associated with diabetes mellitus. Brain-derived neurotrophic factor (BDNF) is a neurotrophic factor and is known to possess anti-obesity, anti-diabetic actions and is believed to have a role in memory and Alzheimer's disease. OBJECTIVE: To investigate whether STZ can reduce BDNF production by rat insulinoma (RIN5F) cells in vitro and decrease BDNF levels in the pancreas, liver and brain in vivo...
March 15, 2017: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/28298541/rosa-mosqueta-oil-prevents-oxidative-stress-and-inflammation-through-the-upregulation-of-ppar-%C3%AE-and-nrf2-in-c57bl-6j-mice-fed-a-high-fat-diet
#8
Daniel González-Mañán, Amanda D'Espessailles, Camila G Dossi, Marcela San Martín, Rodrigo A Mancilla, Gladys S Tapia
Background: Rosa mosqueta (RM) oil is characterized by high concentrations of antioxidants and α-linolenic acid (ALA; 18:3n-3). We have previously demonstrated in male C57BL/6J mice that RM decreases hepatic steatosis, a condition strongly associated with oxidative stress and inflammation.Objective: We studied the molecular mechanisms that underlie the role of RM in preventing high-fat diet (HFD)-induced oxidative stress and inflammation.Methods: Male C57BL/6J mice aged 28 d and weighing 12-14 g were divided into the following groups and fed for 12 wk: control diet (CD; 10% fat, 20% protein, and 70% carbohydrates); CD + RM (1...
March 15, 2017: Journal of Nutrition
https://www.readbyqxmd.com/read/28291973/activity-of-the-hypothalamic-pituitary-adrenal-axis-and-inflammatory-mediators-in-major-depressive-disorder-with-or-without-metabolic-syndrome
#9
Marko Martinac, Dragan Babić, Milenko Bevanda, Ivan Vasilj, Danijela Bevanda Glibo, Dalibor Karlović, Miro Jakovljević
BACKGROUND: The aim of the present study was to explore the differences in serum CRP, IL-6, TNF-α, ACTH and cortisol among patients with major depressive disorder with or without metabolic syndrome (MS) compared to a healthy control group. SUBJECTS AND METHODS: The MDD study group consisted of 80 patients (mean age of 50.03±9.55 years). The control group was recruited from the hospital personnel and it consisted of 40 examinees (mean age of 47.20±7.99 years)...
March 2017: Psychiatria Danubina
https://www.readbyqxmd.com/read/28291540/roux-en-y-gastric-bypass-improves-glucose-homeostasis-reduces-oxidative-stress-and-inflammation-in-livers-of-obese-rats-and-in-kupffer-cells-via-an-ampk-dependent-pathway
#10
Yanhua Peng, James Zongyu Li, Min You, Michel M Murr
BACKGROUND: Oxidative stress and inflammation are implicated in the pathogenesis of steatohepatitis. We hypothesize that Roux-en-Y gastric bypass reduces oxidative stress and inflammation in the liver of obese rats via activation of AMPK-α. METHODS: Obese Sprague-Dawley male rats underwent either sham operation or Roux-en-Y gastric bypass. Hepatic TNF-α, NF-κB, IRS-2, PI3 kinase, PKC-ζ, NOX2, and AMPK-α were measured. Mechanistic studies were done in a rat Kupffer cell line (RKC1) that was treated with free fatty acids to mimic lipotoxicity and then transfected with AMPK-α siRNA...
March 10, 2017: Surgery
https://www.readbyqxmd.com/read/28288470/circulating-concentrations-of-adipocytokines-and-their-receptors-in-the-isolated-corpus-cavernosum-and-femoral-artery-from-trained-rats-on-a-high-fat-diet
#11
Amanda C S Sponton, Fábio H Silva, Hygor N Araujo, Carmem P Valgas da Silva, Camila de Moraes, Edson Antunes, Angelina Zanesco, Maria A Delbin
BACKGROUND: The aim of the present study was to evaluate different signaling pathways by which exercise training would interfere in endothelial function in obesity. Therefore, we examined adipocytokine levels and their receptors in the corpus cavernosum and femoral artery from trained rats on a high-fat diet. METHODS: Functional experiments were performed in control sedentary and trained rats, and sedentary (h-SD) and trained male Wistar rats on a high-fat diet (h-TR)...
March 14, 2017: Journal of Vascular Research
https://www.readbyqxmd.com/read/28283920/impact-of-bariatric-surgery-on-heme-oxygenase-1-inflammation-and-insulin-resistance-in-morbid-obesity-with-obstructive-sleep-apnea
#12
Raquel Tirado, Maria José Masdeu, Laura Vigil, Mercedes Rigla, Alexis Luna, Pere Rebasa, Rocío Pareja, Marta Hurtado, Assumpta Caixàs
INTRODUCTION: Morbid obesity and obstructive sleep apnea (OSA) interact at an inflammatory level. Bariatric surgery reduces inflammatory responses associated with obesity. Heme oxygenase-1 (HO-1) is an enzyme with anti-inflammatory properties, which might be increased in morbid obesity or OSA. We studied morbidly obese patients with OSA to determine: (a) HO-1 plasma concentrations according to OSA severity and their relationship with insulin resistance and inflammation and (b) the impact of bariatric surgery on HO-1 and parameters of insulin resistance and inflammation...
March 10, 2017: Obesity Surgery
https://www.readbyqxmd.com/read/28266782/systemic-immune-mechanisms-in-atopic-dermatitis-and-psoriasis-with-implications-for-treatment
#13
REVIEW
Emma Guttman-Yassky, James G Krueger, Mark G Lebwohl
Atopic dermatitis (AD) and psoriasis are inflammatory skin diseases that negatively affect patients' quality of life. Although distinctions exist between these diseases, both are characterised by erythematous, thickened epidermal lesions that vary in intensity and affected body surface area. Early models of etiology attributed symptoms of both diseases to cutaneous inflammation at lesion sites, but recent studies have established that activated immune mediators in the circulation drive disease severity. Activation of T helper 2 (Th2) and Th22 cells in the circulation appears to be the principal initiator of acute AD pathology, with the emergence of Th1 and Th17/interleukin (IL)-23 pathway activation marking the transition to a chronic state...
March 7, 2017: Experimental Dermatology
https://www.readbyqxmd.com/read/28265495/obesity-induced-diet-leads-to-weight-gain-systemic-metabolic-alterations-adipose-tissue-inflammation-hepatic-steatosis-and-oxidative-stress-in-gerbils-meriones-unguiculatus
#14
Luciana L A Ventura, Nathália C L Fortes, Helton C Santiago, Marcelo V Caliari, Maria A Gomes, Dirce R Oliveira
BACKGROUND: Nowadays, the number of obese people in the world has reached alarming proportions. During the expansion of adipose tissue, a number of functions such as activation and release of cytokines and hormones may be affected. This leads the body to a pro-inflammatory pattern, which may affect the proper functioning of many tissues. Thus, studying the mechanisms by which obesity induces physiological disorders is necessary, and may be facilitated by the use of animal models, in particular rodents...
2017: PeerJ
https://www.readbyqxmd.com/read/28265178/adam19-a-novel-target-for-metabolic-syndrome-in-humans-and-mice
#15
Lakshini Weerasekera, Caroline Rudnicka, Qing-Xiang Sang, Joanne E Curran, Matthew P Johnson, Eric K Moses, Harald H H Göring, John Blangero, Jana Hricova, Markus Schlaich, Vance B Matthews
Obesity is one of the most prevalent metabolic diseases in the Western world and correlates directly with insulin resistance, which may ultimately culminate in type 2 diabetes (T2D). We sought to ascertain whether the human metalloproteinase A Disintegrin and Metalloproteinase 19 (ADAM19) correlates with parameters of the metabolic syndrome in humans and mice. To determine the potential novel role of ADAM19 in the metabolic syndrome, we first conducted microarray studies on peripheral blood mononuclear cells from a well-characterised human cohort...
2017: Mediators of Inflammation
https://www.readbyqxmd.com/read/28262197/longitudinal-analysis-of-the-interaction-between-obesity-and-pregnancy-on-iron-homeostasis-role-of-hepcidin
#16
María Eugenia Flores-Quijano, Irene Montalvo-Velarde, Victor Saul Vital-Reyes, Maricela Rodríguez-Cruz, Mario Enrique Rendón-Macías, Mardia López-Alarcón
BACKGROUND AND AIMS: When pregnancy occurs in obese women, two opposite mechanisms for iron homeostasis concur: increased need for available iron to support erythropoiesis and decreased iron mobilization from diets and stores due to obesity-related inflammation linked to overexpressed hepcidin. Few studies have examined the role of hepcidin on maternal iron homeostasis in the context of obese pregnancy. The aim of the study was to evaluate the combined effect of maternal obesity and pregnancy on hepcidin and maternal iron status while accounting for inflammation and iron supplementation...
October 2016: Archives of Medical Research
https://www.readbyqxmd.com/read/28260907/effect-of-orlistat-on-periostin-adiponectin-inflammatory-markers-and-ultrasound-grades-of-fatty-liver-in-obese-nafld-patients
#17
Rashid Ali Khan, Prem Kapur, Abhinav Jain, Farrukh Farah, Uma Bhandari
Orlistat is recommended in the treatment of obesity, which is an independent risk factor for nonalcoholic fatty liver disease (NAFLD). The reported findings of orlistat in NAFLD are divisive. Recently, periostin is identified as an important regulatory molecule in the pathogenesis of obesity-induced fatty liver. Therefore, this study aimed to evaluate the potential effects of orlistat in the treatment of NAFLD. A 16-week prospective observational study was conducted, with obese NAFLD patient (n=77) receiving orlistat (120 mg capsules, three times a day) with hypocaloric diet or hypocaloric diet only...
2017: Therapeutics and Clinical Risk Management
https://www.readbyqxmd.com/read/28257569/hyperleptinemia-exacerbates-high-fat-diet-mediated-atrial-fibrosis-and-fibrillation
#18
Akira Fukui, Yuki Ikebe-Ebata, Hidekazu Kondo, Shotaro Saito, Kohei Aoki, Naoya Fukunaga, Tetsuji Shinohara, Takayuki Masaki, Yasushi Teshima, Naohiko Takahashi
BACKGROUND: Obesity including metabolic syndrome is an independent risk factor of atrial fibrillation (AF). Although hyperleptinemia is usually a characteristic of obese subjects, the relationship with atrial fibrosis and AF is unknown. We tested the hypothesis that high-fat diet (HFD)-induced hyperleptinemia exacerbates atrial fibrosis and AF. METHODS AND RESULTS: Eight-week-old male C57BL/6 (WT) and leptin-deficient ob/ob (Ob) mice were treated with a normal-fat diet (NFD) or 60% HFD...
March 3, 2017: Journal of Cardiovascular Electrophysiology
https://www.readbyqxmd.com/read/28254441/omega-3-polyunsaturated-fatty-acids-suppress-the-inflammatory-responses-of-lipopolysaccharide-stimulated-mouse-microglia-by-activating-sirt1-pathways
#19
Takayuki Inoue, Masashi Tanaka, Shinya Masuda, Ryuji Ohue-Kitano, Hajime Yamakage, Kazuya Muranaka, Hiromichi Wada, Toru Kusakabe, Akira Shimatsu, Koji Hasegawa, Noriko Satoh-Asahara
Obesity and diabetes are known risk factors for dementia, and it is speculated that chronic neuroinflammation contributes to this increased risk. Microglia are brain-resident immune cells modulating the neuroinflammatory state. Eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA), the major ω-3 polyunsaturated fatty acids (PUFAs) of fish oil, exhibit various effects, which include shifting microglia to the anti-inflammatory phenotype. To identify the molecular mechanisms involved, we examined the impact of EPA, DHA, and EPA+DHA on the lipopolysaccharide (LPS)-induced cytokine profiles and the associated signaling pathways in the mouse microglial line MG6...
February 22, 2017: Biochimica et Biophysica Acta
https://www.readbyqxmd.com/read/28253046/effect-of-moderate-intensity-exercise-on-inflammatory-markers-among-postmenopausal-women
#20
Eduardo Federighi Baisi Chagas, Mariana Rotta Bonfim, Bruna Camilo Turi, Nair Cristina Margarida Brondino, Henrique Luiz Monteiro
BACKGROUND: Declines in ovarian function in postmenopausal women may contribute to increase inflammatory cytokines, which can lead to chronic diseases. However, studies have shown that exercise interventions are important to manage inflammatory conditions. Thus, the objective of this study was to analyze the effect of exercise intervention on inflammatory markers among obese and postmenopausal women. METHODS: 70 women composed the sample (Exercise group [EG; n=35] and non-exercise group [nEG; n=35])...
March 2, 2017: Journal of Physical Activity & Health
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