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Inflammation obesity epigenetics

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https://www.readbyqxmd.com/read/29741587/obesity-in-mares-promotes-uterine-inflammation-and-alters-embryo-lipid-fingerprints-and-homeostasis
#1
Dawn R Sessions-Bresnahan, Adam L Heuberger, Elaine M Carnevale
Maternal body composition can be an important determinant for development of obesity and metabolic syndrome in adult offspring. Obesity-related outcomes in offspring may include epigenetic alterations; however, mechanisms of fetal programming remain to be fully elucidated. This study was conducted to determine the impact of maternal obesity in the absence of a high fat diet on equine endometrium and preimplantation embryos. Embryos were collected from normal and obese mares at 8 and 16 d and a uterine biopsy at 16 d (0 d = ovulation)...
May 7, 2018: Biology of Reproduction
https://www.readbyqxmd.com/read/29688808/dna-methylation-and-the-potential-role-of-demethylating-agents-in-prevention-of-progressive-chronic-kidney-disease
#2
Benjamin P Larkin, Sarah J Glastras, Hui Chen, Carol A Pollock, Sonia Saad
Chronic kidney disease (CKD) is a global epidemic, and its major risk factors include obesity and type 2 diabetes. Obesity not only promotes metabolic dysregulation and the development of diabetic kidney disease but also may independently lead to CKD by a variety of mechanisms, including endocrine and metabolic dysfunction, inflammation, oxidative stress, altered renal hemodynamics, and lipotoxicity. Deleterious renal effects of obesity can also be transmitted from one generation to the next, and it is increasingly recognized that offspring of obese mothers are predisposed to CKD...
April 24, 2018: FASEB Journal: Official Publication of the Federation of American Societies for Experimental Biology
https://www.readbyqxmd.com/read/29688621/an-epigenetic-signature-in-adipose-tissue-is-linked-to-nicotinamide-n-methyltransferase-gene-expression
#3
Ana B Crujeiras, Pavlos Pissios, Jose M Moreno-Navarrete, Angel Diaz-Lagares, Juan Sandoval, Antonio Gomez, Wilfredo Ricart, Manel Esteller, Felipe F Casanueva, Jose M Fernandez-Real
SCOPE: The enzyme nicotinamide N-methyltransferase (NNMT) is a major methyltransferase in adipose tissue. We hypothesized an epigenetic signature in association with NNMT gene expression in adipose tissue. METHODS AND RESULTS: The global human methylome was analyzed in visceral adipose tissue (VAT) from morbidly obese patients using the Infinium HumanMethylation450 BeadChip array (discovery cohort: n  =  11). The findings were confirmed in two additional independent cohorts (Cohort 1: n  =  60; BMI 20-60 kg/m2 and cohort 2: n  =  40; BMI >40 kg/m2 ) and validated after weight loss (using microarray data)...
April 24, 2018: Molecular Nutrition & Food Research
https://www.readbyqxmd.com/read/29645315/cell-and-molecular-mechanisms-behind-diet-induced-hypothalamic-inflammation-and-obesity
#4
REVIEW
Yenniffer Ávalos, Bredford Kerr, Manuel Maliqueo, Mauricio Dorfman
Diet-induced obesity (DIO) is associated with chronic, low-grade inflammation in the hypothalamus, a key regulator of energy homeostasis. Current studies have revealed the involvement of different cell types as well as cell and molecular mechanisms that contribute to diet-induced hypothalamic inflammation (DIHI) and DIO. Since the discovery that high-fat diet and saturated fatty acids (SFAs) increase the expression of hypothalamic cytokines prior to weight gain, research has focused on understanding the cellular and molecular mechanisms underlying these changes, and what the role of inflammation in the obesity pathogenesis...
April 12, 2018: Journal of Neuroendocrinology
https://www.readbyqxmd.com/read/29621669/omega-3-fatty-acids-in-obesity-and-metabolic-syndrome-a-mechanistic-update
#5
REVIEW
Kembra Albracht-Schulte, Nishan Sudheera Kalupahana, Latha Ramalingam, Shu Wang, Shaikh Mizanoor Rahman, Jacalyn Robert-McComb, Naima Moustaid-Moussa
Strategies to reduce obesity have become public health priorities as the prevalence of obesity has risen in the United States and around the world. While the anti-inflammatory and hypotriglyceridemic properties of long-chain omega-3 polyunsaturated fatty acids (n-3 PUFAs) are well known, their antiobesity effects and efficacy against metabolic syndrome, especially in humans, are still under debate. In animal models, evidence consistently suggests a role for n-3 PUFAs in reducing fat mass, particularly in the retroperitoneal and epididymal regions...
February 27, 2018: Journal of Nutritional Biochemistry
https://www.readbyqxmd.com/read/29594113/interplay-of-inflammatory-mediators-with-epigenetics-and-cartilage-modifications-in-osteoarthritis
#6
REVIEW
Swarna Raman, Una FitzGerald, J Mary Murphy
Osteoarthritis (OA), a degenerative disease of diarthrodial joints, is influenced by mechanical and inflammatory factors with aging, obesity, chronic injuries, and secondary diseases thought to be major factors driving the process of articular cartilage degeneration. Chondrocytes, the cellular component of cartilage, reside in an avascular environment and normally have limited potential to replicate. However, extrinsic factors such as injury to the joint or intrinsic alterations to the chondrocytes themselves can lead to an altered phenotype and development of OA...
2018: Frontiers in Bioengineering and Biotechnology
https://www.readbyqxmd.com/read/29525533/maternal-green-tea-polyphenol-intake-during-lactation-attenuates-kidney-injury-in-high-fat-diet-fed-male-offspring-programmed-by-maternal-protein-restriction-in-rats
#7
Saori Kataoka, Toshio Norikura, Shin Sato
Maternal malnutrition is known to increase the risk of obesity in offspring. We investigated whether green tea extract (GTE) intake during lactation affects obesity-related fibrosis and inflammation in the kidney of high-fat-diet-fed adult offspring of protein-restricted-diet-fed dams during pregnancy and lactation. Pregnant Wistar rats received diets containing 20% (normal-protein, NP) or 8% (low-protein, LP) casein, and they received 0%-, 0.12%- or 0.24%-GTE-containing LP diets (LP/LP, LP/LGT and LP/HGT, respectively) during lactation...
February 9, 2018: Journal of Nutritional Biochemistry
https://www.readbyqxmd.com/read/29523493/antecedents-of-screening-positive-for-attention-deficit-hyperactivity-disorder-in-ten-year-old-children-born-extremely-preterm
#8
Alan Leviton, Stephen R Hooper, Scott J Hunter, Megan N Scott, Elizabeth N Allred, Robert M Joseph, T Michael O'Shea, Karl Kuban
BACKGROUND: The incidence of attention deficit hyperactivity disorder is higher among children born very preterm than among children who are mature at birth. METHODS: We studied 583 ten-year-old children who were born before 28 weeks of gestation whose IQ was above 84 and had a parent-completed Child Symptom Inventory-4, which allowed classification of the child as having or not having symptoms of attention deficit hyperactivity disorder. For 422 children, we also had a teacher report, and for 583 children, we also had a parent report of whether or not a physician made an attention deficit hyperactivity disorder diagnosis...
April 2018: Pediatric Neurology
https://www.readbyqxmd.com/read/29425818/dna-methylation-of-the-klf14-gene-region-in-whole-blood-cells-provides-prediction-for-the-chronic-inflammation-in-the-adipose-tissue
#9
Chihiro Iwaya, Hidetoshi Kitajima, Ken Yamamoto, Yasutaka Maeda, Noriyuki Sonoda, Hiroki Shibata, Toyoshi Inoguchi
Krüppel-Like Factor 14 (KLF14) gene, which appears to be a master regulator of gene expression in the adipose tissue and have previously been associated with BMI and Type 2 diabetes (T2D) by large genome-wide association studies. In order to find predictive biomarkers for the development of T2D, it is necessary to take epigenomic changes affected by environmental factors into account. This study focuses on ageing and obesity, which are T2D risk factors, and examines epigenetic changes and inflammatory changes...
March 11, 2018: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/29387042/type-2-diabetes-mellitus-and-cardiovascular-disease-genetic-and-epigenetic-links
#10
REVIEW
Salvatore De Rosa, Biagio Arcidiacono, Eusebio Chiefari, Antonio Brunetti, Ciro Indolfi, Daniela P Foti
Type 2 diabetes mellitus (DM) is a common metabolic disorder predisposing to diabetic cardiomyopathy and atherosclerotic cardiovascular disease (CVD), which could lead to heart failure through a variety of mechanisms, including myocardial infarction and chronic pressure overload. Pathogenetic mechanisms, mainly linked to hyperglycemia and chronic sustained hyperinsulinemia, include changes in metabolic profiles, intracellular signaling pathways, energy production, redox status, increased susceptibility to ischemia, and extracellular matrix remodeling...
2018: Frontiers in Endocrinology
https://www.readbyqxmd.com/read/29170059/the-clinical-potential-of-adipogenesis-and-obesity-related-micrornas
#11
REVIEW
M Zaiou, H El Amri, A Bakillah
Obesity is a growing health problem commonly associated with numerous metabolic disorders including type 2 diabetes, hypertension, cardiovascular disease, and some forms of cancer. The burden of obesity and associated cardiometabolic diseases are believed to arise through complex interplay between genetics and epigenetics predisposition, nutrition, environment, and lifestyle. However, the molecular basis and the repertoire of obesity-affecting factors are still unknown. Emerging evidence is connecting microRNAs (miRNAs) dysregulation with adipogenesis and obesity...
February 2018: Nutrition, Metabolism, and Cardiovascular Diseases: NMCD
https://www.readbyqxmd.com/read/29161229/sex-and-dose-specific-effects-of-maternal-bisphenol-a-exposure-on-pancreatic-islets-of-first-and-second-generation-adult-mice-offspring
#12
Amita Bansal, Cetewayo Rashid, Frances Xin, Changhong Li, Erzsebet Polyak, Anna Duemler, Tom van der Meer, Martha Stefaniak, Sana Wajid, Nicolai Doliba, Marisa S Bartolomei, Rebecca A Simmons
BACKGROUND: Exposure to the environmental endocrine disruptor bisphenol A (BPA) is ubiquitous and associated with the increased risk of diabetes and obesity. However, the underlying mechanisms remain unknown. We recently demonstrated that perinatal BPA exposure is associated with higher body fat, impaired glucose tolerance, and reduced insulin secretion in first- (F1) and second-generation (F2) C57BL/6J male mice offspring. OBJECTIVE: We sought to determine the multigenerational effects of maternal bisphenol A exposure on mouse pancreatic islets...
September 27, 2017: Environmental Health Perspectives
https://www.readbyqxmd.com/read/29132743/nuclear-sirtuins-and-inflammatory-signaling-pathways
#13
REVIEW
Keila Lopes Mendes, Deborah de Farias Lelis, Sérgio Henrique Sousa Santos
The regulation of chronic inflammation has received considerable research attention in recent years because of its contribution to the pathogenesis of chronic diseases such as arthritis, diabetes, metabolic syndrome and obesity. Thus, strategies that inhibit the inflammatory state may be beneficial in improving the pathophysiology of several inflammation-related disorders. Sirtuins are a family of histone deacetylases that contain seven enzymatic activities in mammals (SIRT1-SIRT7) and function to suppress gene transcription by epigenetic mechanisms...
December 2017: Cytokine & Growth Factor Reviews
https://www.readbyqxmd.com/read/29121255/adipocyte-expression-of-slc19a1-links-dna-hypermethylation-to-adipose-tissue-inflammation-and-insulin-resistance
#14
Paul Petrus, Lucia Bialesova, Antonio Checa, Alastair Kerr, Shama Naz, Jesper Bäckdahl, Ana Gracia, Sofia Toft, Karin Dahlman-Wright, Per Hedén, Ingrid Dahlman, Craig E Wheelock, Peter Arner, Niklas Mejhert, Hui Gao, Mikael Rydén
Context: Insulin resistance (IR) is promoted by a chronic low-grade inflammation in white adipose tissue (WAT). The latter might be regulated through epigenetic mechanisms such as DNA methylation. The one carbon cycle (1CC) is a central metabolic process governing DNA methylation. Objective: To identify adipocyte-expressed 1CC genes linked to WAT inflammation, IR, and their causal role. Design: Cohort study. Setting: Outpatient academic clinic...
February 1, 2018: Journal of Clinical Endocrinology and Metabolism
https://www.readbyqxmd.com/read/29080342/cross-talk-between-bile-acids-and-gastro-intestinal-and-thermogenic-hormones-clues-from-bariatric-surgery
#15
Gabriella Garruti, Agostino Di Ciaula, Helen H Wang, David Q-H Wang, Piero Portincasa
Obesity is rapidly increasing and has reached epidemic features worldwide. It´s linked to insulin resistance, systemic low-grade inflammation and common pathogenic pathways with a number of comorbidities (including cancer), leading to high mortality rates. Besides change of lifestyles (diet and physical exercise) and pharmacological therapy, bariatric surgery is able to rapidly improve several metabolic and morphologic features associated with excessive fat storage, and currently represents an in vivo model to study the pathogenic mechanisms underlying obesity and obesity-related complications...
November 2017: Annals of Hepatology
https://www.readbyqxmd.com/read/29055387/the-colon-revisited-or-the-key-to-wellness-health-and-disease
#16
C A Gonzalez-Correa, E Mulett-Vásquez, D A Miranda, C H Gonzalez-Correa, P A Gómez-Buitrago
The hypothesis being advanced in this paper is that there is a new medical paradigm emerging from the biomedical research carried out in this century, mainly due to the explosion of the so called "omics" and associated techniques. The main idea is that there is a common pathway from wellbeing and health to chronic disease ("chronopathy") and even to death, which comprises following steps: 1) unhealthy diet, sedentary life style and permanent exposition to xenobiotics and all kinds of noxious stimuli;→2) intestinal dysbiosis;→3) alteration of the intestinal mucus layer (especially that of the colon);→4) disruption of the endothelial tight junctions;→5) metabolic endotoxemia+bacterial translocation;→6) inflammation;→7) exacerbation of the enteric nervous system (ENS) and consequent maladaptation and malfunctioning of the colon;→8) epigenetic manifestations;→9) "chronopathy" and premature death...
October 2017: Medical Hypotheses
https://www.readbyqxmd.com/read/28971462/interactome-of-obesity-obesidome-genetic-obesity-stress-induced-obesity-pathogenic-obesity-interaction
#17
Styliani A Geronikolou, Athanasia Pavlopoulou, Dennis Cokkinos, George Chrousos
Obesity is a chronic disease of increasing prevalence reaching epidemic proportions. Genetic defects as well as epigenetic effects contribute to the obesity phenotype. Investigating gene (e.g. MC4R defects)-environment (behavior, infectious agents, stress) interactions is a relative new field of great research interest. In this study, we have made an effort to create an interactome (henceforth referred to as "obesidome"), where extrinsic stressors response, intrinsic predisposition, immunity response to inflammation and autonomous nervous system implications are integrated...
2017: Advances in Experimental Medicine and Biology
https://www.readbyqxmd.com/read/28891325/epigenetics-and-immunometabolism-in-diabetes-and-aging
#18
Tomasz J Guzik, Francesco Cosentino
SIGNIFICANCE: A strong relationship between hyperglycemia, impaired insulin pathway, and cardiovascular disease in type 2 diabetes (T2D) is linked to oxidative stress and inflammation. Immunometabolic pathways link these pathogenic processes and pose important potential therapeutic targets. Recent Advances: The link between immunity and metabolism is bidirectional and includes the role of inflammation in the pathogenesis of metabolic disorders such as T2D, obesity, metabolic syndrome, and hypertension and the role of metabolic factors in regulation of immune cell functions...
October 16, 2017: Antioxidants & Redox Signaling
https://www.readbyqxmd.com/read/28878765/dyslipidemic-diet-induced-monocyte-priming-and-dysfunction-in-non-human-primates-is-triggered-by-elevated-plasma-cholesterol-and-accompanied-by-altered-histone-acetylation
#19
John D Short, Sina Tavakoli, Huynh Nga Nguyen, Ana Carrera, Chelbee Farnen, Laura A Cox, Reto Asmis
Monocytes and the recruitment of monocyte-derived macrophages into sites of inflammation play a key role in atherogenesis and other chronic inflammatory diseases linked to cardiometabolic syndrome and obesity. Previous studies from our group have shown that metabolic stress promotes monocyte priming, i.e., enhanced adhesion and accelerated chemotaxis of monocytes in response to chemokines, both in vitro and in dyslipidemic LDLR-/- mice. We also showed that metabolic stress-induced monocyte dysfunction is, at least to a large extent caused by the S -glutathionylation, inactivation, and subsequent degradation of mitogen-activated protein kinase phosphatase 1...
2017: Frontiers in Immunology
https://www.readbyqxmd.com/read/28845613/the-epigenomic-analysis-of-human-obesity
#20
REVIEW
Christopher G Bell
OBJECTIVE: Analysis of the epigenome-the chemical modifications and packaging of the genome that can influence or indicate its activity-enables molecular insight into cell type-specific machinery. It can, therefore, reveal the pathophysiological mechanisms at work in disease. Detected changes can also represent physiological responses to adverse environmental exposures, thus enabling the epigenetic mark of DNA methylation to act as an epidemiological biomarker, even in surrogate tissue...
September 2017: Obesity
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