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Adipose cardiovascular

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https://www.readbyqxmd.com/read/28334715/potassium-channel-independent-relaxing-influence-of-adipose-tissue-on-mouse-carotid-artery
#1
Marta Laskowski, Cathrin Andersson, Emilie Eliasson, Veronika Golubinskaya, Holger Nilsson
Since the cardiovascular consequences of obesity reportedly vary in different types of obesity, we investigated the influence of adipose tissue from different locales on the phenylephrine-induced tone of the mouse carotid artery. Vessels were mounted in a Mulvany-Halpern-type wire myograph, and adipose tissue, from the back (brown) or mesenteric or inguinal subcutaneous (white), was placed around the artery. Contractile responses to phenylephrine were not affected by brown adipose tissue but were reduced (p < 0...
March 24, 2017: Journal of Vascular Research
https://www.readbyqxmd.com/read/28330662/pericardial-but-not-hepatic-fat-by-ct-is-associated-with-cv-outcomes-and%C3%A2-structure-the-multi-ethnic-study-of-atherosclerosis
#2
Ravi V Shah, Amanda Anderson, Jingzhong Ding, Matthew Budoff, Oliver Rider, Steffen E Petersen, Majken Karoline Jensen, Manja Koch, Matthew Allison, Nadine Kawel-Boehm, Jessica Wisocky, Michael Jerosch-Herold, Kenneth Mukamal, Joao A C Lima, Venkatesh L Murthy
OBJECTIVES: The study sought to determine the associations between local (pericardial) fat and incident cardiovascular disease (CVD) events and cardiac remodeling independent of markers of overall adiposity. BACKGROUND: The impact of pericardial fat-a local fat depot encasing the heart-on myocardial function and long-term CV prognosis independent of systemic consequences of adiposity or hepatic fat is an area of active debate. METHODS: We studied 4,234 participants enrolled in the MESA (Multi-Ethnic Study of Atherosclerosis) study with concomitant cardiac magnetic resonance imaging and computed tomography (CT) measurements for pericardial fat volume and hepatic attenuation (a measure of liver fat)...
March 10, 2017: JACC. Cardiovascular Imaging
https://www.readbyqxmd.com/read/28327649/adiposity-in-childhood-brain-tumors-a-report-from-the-canadian-study-of-determinants-of-endometabolic-health-in-children-candecide-study
#3
Kuan-Wen Wang, Russell J de Souza, Adam Fleming, Sheila K Singh, Donna L Johnston, Shayna M Zelcer, Shahrad Rod Rassekh, Sarah Burrow, Katrin Scheinemann, Lehana Thabane, M Constantine Samaan
Children with brain tumors (CBT) are at high risk of cardiovascular diseases and type 2 diabetes compared to the general population. Recently, adiposity has been reported to be more informative for cardiometabolic risk stratification than body mass index (BMI) in the general population. The goal of this study is to describe the adiposity phenotype in CBT, and to establish adiposity determinants. We recruited CBT (n = 56) and non-cancer controls (n = 106). Percent body fat (%FM), waist-to-hip ratio (WHR) and waist-to-height ratio (WHtR) were measured to determine total and central adiposity, respectively...
March 22, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28327129/short-term-overfeeding-of-zebrafish-with-normal-or-high-fat-diet-as-a-model-for-the-development-of-metabolically-healthy-versus-unhealthy-obesity
#4
Kathrin Landgraf, Susanne Schuster, Andrej Meusel, Antje Garten, Thomas Riemer, Dorit Schleinitz, Wieland Kiess, Antje Körner
BACKGROUND: Obese individuals differ in their risk of developing metabolic and cardiovascular complications depending on fat distribution (subcutaneous versus visceral) and adipose tissue (AT) phenotype (hyperplasic versus hypertrophic). However, the exact mechanisms which determine whether an obese individual is metabolically healthy or unhealthy are not clear, and analyses of the underlying pathomechanisms are limited by the lack of suitable in vivo models in which metabolically healthy versus metabolically unhealthy AT accumulation can be specifically induced...
March 21, 2017: BMC Physiology
https://www.readbyqxmd.com/read/28326542/current-and-future-therapies-for-addressing-the-effects-of-inflammation-on-hdl-cholesterol-metabolism
#5
REVIEW
Fatima Iqbal, Wendy S Baker, Madiha I Khan, Shwetha Thukuntla, Kevin H McKinney, Nicola Abate, Demidmaa Tuvdendorj
Cardiovascular disease (CVD) is a major cause of morbidity and mortality worldwide. Inflammatory processes arising from metabolic abnormalities are known to precipitate the development of CVD. Several metabolic and inflammatory markers have been proposed for predicting the progression of CVD, including high density lipoprotein cholesterol (HDL-C). For ~50 years, HDL-C has been considered as the atheroprotective 'good' cholesterol because of its strong inverse association with the progression of CVD. Thus, interventions to increase the concentration of HDL-C have been successfully tested in animals; however, clinical trials were unable to confirm the cardiovascular benefits of pharmaceutical interventions aimed at increasing HDL-C levels...
March 22, 2017: British Journal of Pharmacology
https://www.readbyqxmd.com/read/28325521/the-role-of-adipokines-in-cardiovascular-disease
#6
REVIEW
Rei Shibata, Noriyuki Ouchi, Koji Ohashi, Toyoaki Murohara
Obesity leads to the development of cardiovascular diseases. Adipose tissue produces various bioactive molecules, also known as adipokines, and imbalanced production of adipokines contributes to the pathogenesis of obesity-linked metabolic and cardiovascular complications. Some adipokines such as adiponectin exert salutary actions on cardiovascular and metabolic disorders. Recent research has been conducted to identify poorly-characterized adipokines involved in cardiovascular regulation. In this review, we focus on the protective role of novel adipokines that are of current interest in the field of cardiology...
March 18, 2017: Journal of Cardiology
https://www.readbyqxmd.com/read/28324021/endogenous-calcitonin-gene-related-peptide-regulates-lipid-metabolism-and-energy-homeostasis-in-male-mice
#7
Tian Liu, Akiko Kamiyoshi, Takayuki Sakurai, Yuka Ichikawa-Shindo, Hisaka Kawate, Lei Yang, Megumu Tanaka, Xian Xian, Akira Imai, Liuyu Zhai, Kazutaka Hirabayashi, Kun Dai, Keiya Tanimura, Teng Liu, Nanqi Cui, Kyoko Igarashi, Akihiro Yamauchi, Takayuki Shindo
Calcitonin gene-related peptide (CGRP) is a bioactive peptide produced by alternative splicing of the primary transcript of the calcitonin/CGRP gene. CGRP is largely distributed in the cardiovascular and nervous systems, where it acts as a regulatory factor. CGRP is also expressed in organs and tissues involved in metabolic regulation, including white adipose tissue (WAT), where its function is largely unknown. In this study, we examined the effects of endogenous CGRP on metabolic function. When we administered a high-fat diet to CGRP knockout (CGRP-/-) and wild-type (WT) mice for 10 weeks, we observed that food intake did not differ between the two groups, but body weight and visceral fat weight were significantly lower in CGRP-/- mice...
January 20, 2017: Endocrinology
https://www.readbyqxmd.com/read/28320483/human-and-feline-adipose-derived-mesenchymal-stem-cells-have-comparable-phenotype-immunomodulatory-functions-and-transcriptome
#8
Kaitlin C Clark, Fernando A Fierro, Emily Mills Ko, Naomi J Walker, Boaz Arzi, Clifford G Tepper, Heather Dahlenburg, Andrew Cicchetto, Amir Kol, Lyndsey Marsh, William J Murphy, Nasim Fazel, Dori L Borjesson
BACKGROUND: Adipose-derived mesenchymal stem cells (ASCs) are a promising cell therapy to treat inflammatory and immune-mediated diseases. Development of appropriate pre-clinical animal models is critical to determine safety and attain early efficacy data for the most promising therapeutic candidates. Naturally occurring diseases in cats already serve as valuable models to inform human clinical trials in oncologic, cardiovascular, and genetic diseases. The objective of this study was to complete a comprehensive side-by-side comparison of human and feline ASCs, with an emphasis on their immunomodulatory capacity and transcriptome...
March 20, 2017: Stem Cell Research & Therapy
https://www.readbyqxmd.com/read/28316139/changes-in-body-composition-and-metabolic-profile-during-interleukin-6-inhibition-in-rheumatoid-arthritis
#9
Anne Tournadre, Bruno Pereira, Fréderic Dutheil, Charlotte Giraud, Daniel Courteix, Vincent Sapin, Thomas Frayssac, Sylvain Mathieu, Sandrine Malochet-Guinamand, Martin Soubrier
BACKGROUND: Rheumatoid arthritis (RA) is a chronic inflammatory disease characterized by increased mortality associated with cardiometabolic disorders including dyslipidaemia, insulin resistance, and cachectic obesity. Tumour necrosis factor inhibitors and interleukin 6 receptor blocker licensed for the treatment of RA decrease inflammation and could thus improve cardiovascular risk, but their effects on body composition and metabolic profile need to be clarified. We investigated the effects of tocilizumab (TCZ), a humanized anti-interleukin 6 receptor antibody, on body composition and metabolic profile in patients treated for RA...
March 18, 2017: Journal of Cachexia, Sarcopenia and Muscle
https://www.readbyqxmd.com/read/28315007/central-obesity-and-risks-of-cardiovascular-events-and-mortality-in-prevalent-hemodialysis-patients
#10
Heba Wahid El Said, Osama Mahmoud Mohamed, Tamer Wahid El Said, Ahmed Bahaa El Serwi
BACKGROUND: To date, no attempt has been made to assess the best anthropometric method for defining abdominal adiposity in hemodialysis (HD) patients or to determine whether the quantity of intra-abdominal fat relates to morbidity and mortality in that population. We aimed to describe the prevalence of central obesity in HD patients and to investigate the relationship between central obesity assessed by anthropometric variables, and composite outcomes, cardiovascular morbidity and mortality among HD patients and whether this parameter correlates with intra-abdominal fat assessed by computed tomography scan (CT scan)...
March 17, 2017: International Urology and Nephrology
https://www.readbyqxmd.com/read/28314735/non-alcoholic-fatty-liver-disease-and-its-relationship-with-cardiovascular-disease-and-other-extrahepatic-diseases
#11
REVIEW
Leon A Adams, Quentin M Anstee, Herbert Tilg, Giovanni Targher
Key physiological functions of the liver, including glucose and lipid metabolism, become disturbed in the setting of non-alcoholic fatty liver disease (NAFLD) and may be associated with a systemic inflammatory 'milieu' initiated in part by liver-secreted cytokines and molecules. Consequently, the pathophysiological effects of NAFLD extend beyond the liver with a large body of clinical evidence demonstrating NAFLD to be independently associated with both prevalent and incident cardiovascular disease (CVD), chronic kidney disease (CKD) and type 2 diabetes mellitus (T2DM)...
March 17, 2017: Gut
https://www.readbyqxmd.com/read/28302626/sting-irf3-triggers-endothelial-inflammation-in-response-to-free-fatty-acid-induced-mitochondrial-damage-in-diet-induced-obesity
#12
Yun Mao, Wei Luo, Lin Zhang, Weiwei Wu, Liangshuai Yuan, Hao Xu, Juhee Song, Keigi Fujiwara, Jun-Ichi Abe, Scott A LeMaire, Xing Li Wang, Ying H Shen
OBJECTIVE: Metabolic stress in obesity induces endothelial inflammation and activation, which initiates adipose tissue inflammation, insulin resistance, and cardiovascular diseases. However, the mechanisms underlying endothelial inflammation induction are not completely understood. Stimulator of interferon genes (STING) is an important molecule in immunity and inflammation. In the present study, we sought to determine the role of STING in palmitic acid-induced endothelial activation/inflammation...
March 16, 2017: Arteriosclerosis, Thrombosis, and Vascular Biology
https://www.readbyqxmd.com/read/28300429/leptin-predicts-short-term-major-adverse-cardiac-events-in-patients-with-coronary-artery-disease
#13
Veli-Pekka Puurunen, Antti Kiviniemi, Samuli Lepojärvi, Olli-Pekka Piira, Pirjo Hedberg, Juhani Junttila, Olavi Ukkola, Heikki Huikuri
INTRODUCTION: Leptin is an adipose tissue-derived hormone associated with cardiovascular risk factors. We examined whether leptin predicts major adverse cardiac events (MACE) in coronary artery disease (CAD) patients. METHODS: Fasting plasma leptin levels were measured in 1327 male and 619 female CAD patients. The patients were followed up for two years. The primary endpoint (MACE) was the composite of a hospitalisation for congestive heart failure (CHF) or a cardiac death...
March 16, 2017: Annals of Medicine
https://www.readbyqxmd.com/read/28299324/micrornas-and-cardiovascular-disease-in-diabetes-mellitus
#14
REVIEW
Yue Ding, Xue Sun, Peng-Fei Shan
Cardiovascular disease (CVD) is the major macrovascular complication of diabetes mellitus. Recently, although CVD morbidity and mortality have decreased as a result of comprehensive control of CVD risk factors, CVD remains the leading cause of death of patients with diabetes in many countries, indicating the potential underlying pathophysiological mechanisms. MicroRNAs are a class of noncoding, single-stranded RNA molecules that are involved in β-cell function, insulin secretion, insulin resistance, skeletal muscle, and adipose tissue and which play an important role in glucose homeostasis and the pathogenesis of diabetic complications...
2017: BioMed Research International
https://www.readbyqxmd.com/read/28298537/obesity-mediates-the-association-between-mediterranean-diet-consumption-and-insulin-resistance-and-inflammation-in-us-adults
#15
Yong-Moon Park, Jiajia Zhang, Susan E Steck, Teresa T Fung, Linda J Hazlett, Kyungdo Han, Seung-Hyun Ko, Anwar T Merchant
Background: The inverse association between Mediterranean diet (Med-diet) consumption and insulin resistance or inflammatory markers is well known. However, the extent to which obesity may act directly on or mediate this association is unclear.Objective: We aimed to investigate whether the associations between Med-diet consumption and markers of insulin resistance and inflammation are mediated by body mass index (BMI) or waist circumference (WC) in a representative US population.Methods: We used cross-sectional data from 4700 adults aged 20-90 y without any previous diagnosis of cancer, cardiovascular disease, diabetes, or hypertension based on the NHANES III, 1988-1994...
March 15, 2017: Journal of Nutrition
https://www.readbyqxmd.com/read/28295415/adipose-tissue-nad-biology-in-obesity-and-insulin-resistance-from-mechanism-to-therapy
#16
REVIEW
Shintaro Yamaguchi, Jun Yoshino
Nicotinamide adenine dinucleotide (NAD(+) ) biosynthetic pathway, mediated by nicotinamide phosphoribosyltransferase (NAMPT), a key NAD(+) biosynthetic enzyme, plays a pivotal role in controlling many biological processes, such as metabolism, circadian rhythm, inflammation, and aging. Over the past decade, NAMPT-mediated NAD(+) biosynthesis, together with its key downstream mediator, namely the NAD(+) -dependent protein deacetylase SIRT1, has been demonstrated to regulate glucose and lipid metabolism in a tissue-dependent manner...
March 15, 2017: BioEssays: News and Reviews in Molecular, Cellular and Developmental Biology
https://www.readbyqxmd.com/read/28291838/level-and-correlates-of-physical-activity-and-sedentary-behavior-in-patients-with-type-2-diabetes-a-cross-sectional-analysis-of-the-italian-diabetes-and-exercise-study_2
#17
Stefano Balducci, Valeria D'Errico, Jonida Haxhi, Massimo Sacchetti, Giorgio Orlando, Patrizia Cardelli, Nicolina Di Biase, Lucilla Bollanti, Francesco Conti, Silvano Zanuso, Antonio Nicolucci, Giuseppe Pugliese
OBJECTIVE: Patients with type 2 diabetes usually show reduced physical activity (PA) and increased sedentary (SED)-time, though to a varying extent, especially for low-intensity PA (LPA), a major determinant of daily energy expenditure that is not accurately captured by questionnaires. This study assessed the level and correlates of PA and SED-time in patients from the Italian Diabetes and Exercise Study_2 (IDES_2). METHODS: Three-hundred physically inactive and sedentary patients with type 2 diabetes were enrolled in the IDES_2 to be randomized to an intervention group, receiving theoretical and practical exercise counseling, and a control group, receiving standard care...
2017: PloS One
https://www.readbyqxmd.com/read/28288985/screen-time-is-associated-with-adiposity-and-insulin-resistance-in-children
#18
Claire M Nightingale, Alicja R Rudnicka, Angela S Donin, Naveed Sattar, Derek G Cook, Peter H Whincup, Christopher G Owen
BACKGROUND: Higher screen time is associated with type 2 diabetes (T2D) risk in adults, but the association with T2D risk markers in children is unclear. We examined associations between self-reported screen time and T2D risk markers in children. METHODS: Survey of 4495 children aged 9-10 years who had fasting cardiometabolic risk marker assessments, anthropometry measurements and reported daily screen time; objective physical activity was measured in a subset of 2031 children...
March 13, 2017: Archives of Disease in Childhood
https://www.readbyqxmd.com/read/28287629/metabolic-disturbances-due-to-a-high-fat-diet-in-a-non-insulin-resistant-animal-model
#19
L Ramalho, M N da Jornada, L C Antunes, M P Hidalgo
OBJECTIVE: Shift workers have metabolic changes more often than day workers. It is also known that night workers prefer foods high in saturated fat. Such data suggest that shift workers are prone to cardiovascular disease. Therefore, the objective of this study was to propose an animal model to test the effect of high-fat diet (HFD) based on shift workers' diet. METHODS: This is an experimental study with 20 Wistar rats. Ten rats were allocated to the control group (CG) and were fed standard diet...
March 13, 2017: Nutrition & Diabetes
https://www.readbyqxmd.com/read/28286779/adipokines-potential-therapeutic-targets-for-vascular-dysfunction-in-type-ii-diabetes-mellitus-and-obesity
#20
REVIEW
Mostafa Wanees Ahmed El Husseny, Mediana Mamdouh, Sara Shaban, Abdelrahman Ibrahim Abushouk, Marwa Mostafa Mohamed Zaki, Osama M Ahmed, Mohamed M Abdel-Daim
Adipokines are bioactive molecules that regulate several physiological functions such as energy balance, insulin sensitization, appetite regulation, inflammatory response, and vascular homeostasis. They include proinflammatory cytokines such as adipocyte fatty acid binding protein (A-FABP) and anti-inflammatory cytokines such as adiponectin, as well as vasodilator and vasoconstrictor molecules. In obesity and type II diabetes mellitus (DM), insulin resistance causes impairment of the endocrine function of the perivascular adipose tissue, an imbalance in the secretion of vasoconstrictor and vasodilator molecules, and an increased production of reactive oxygen species...
2017: Journal of Diabetes Research
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