Download or read book Role of Exercise in Macrophage Polarization of Perivascular Adipose Tissue and Adipose Tissue Inflammation in Hypertensive Mice Model written by Venkata Sai Usha Sri Polaki and published by . This book was released on 2020 with total page 82 pages. Available in PDF, EPUB and Kindle. Book excerpt: Hypertension, also known as high blood pressure, is a long-term medical condition in which the blood pressure in the arteries is persistently elevated. It can lead to severe health complications and increase the risk of heart disease, stroke, and sometimes death. Perivascular adipose tissue (PVAT) is known as the adipose tissue (AT) surrounding all the blood vessels and plays a critical role in the pathogenesis of the vascular disease. In vascular pathologies, PVAT increases in volume and becomes dysfunctional, with altered cellular composition and molecular characteristics. Macrophages have been found to accumulate in PVAT during hypertension, which might be involved in the inflammation of hypertension. Inflammation has been shown to play an important role in hypertension; however, the exact mechanisms by which the activated immune cells partly lead to the development and maintenance of hypertension remain to be elucidated. The objective of this study is to determine the role of exercise in the inflammation of AT and PVAT by modulating the polarization of macrophages in hypertensive mice. Renin transgenic (R+) mice have been used as a hypertensive mice model. The PVAT, AT, and plasma samples were collected for the analysis of inflammatory cytokines, macrophages isolation, and polarization. The release of cytokines from AT and PVAT was determined by ELISA and the release of cytokines from plasma was determined by bio plex cytokine analysis. Our ELISA results did not show the changes of exercise on the release of cytokines in AT but could decrease the pro-inflammatory cytokines in PVAT. While our flow cytometry results showed that exercise affected the macrophage polarization in adipose tissue but not in PVAT. Cytokine analysis of plasma samples showed a decrease in pro-inflammatory cytokines IFN-g and IL-6, as well as anti-inflammatory cytokines IL-4 and IL-13, while an increase in IL-10 was noted, which might be related to effects of exercise by alleviating the release of cytokines. Very interestingly, we found that exercise also decreased vascular remodeling in the aorta. In conclusion, our data suggest that exercise might have effects on alleviating inflammation and modulating the polarization of macrophages in AT and PVAT of R+ mice. Further studies and more animal numbers are needed to confirm the protective effect of exercise in modulating the macrophage polarization in the hypertensive mice model.

Download or read book Plasticity and Metabolic Switching in Adipose Tissue Macrophages written by Junji Xing and published by Frontiers Media SA. This book was released on 2023-09-05 with total page 129 pages. Available in PDF, EPUB and Kindle. Book excerpt: Macrophages are the most common immune cells present in adipose tissues. These adipose tissue macrophages (ATMs) have an important role in regulating homeostasis and contributing to the metabolically harmful chronic inflammation seen in some obese individuals. Macrophages are cells exhibiting plasticity, that is to alter their polarization between pro- and anti-inflammatory phenotypes, in response to stimuli in their microenvironments. There has been a deal of evidence supporting the heterogeneity of these ATM populations, however, research into their differential functionality, developmental origin, and phenotype warrants further research to reach a consensus. Further questions remain regarding the nature of this macrophage differentiation and plasticity, and whether it is innately determined or is induced by the specific adipose tissue microenvironment. Differences in the phenotypes of metabolically unhealthy obese (MUO) and the metabolically healthy obese (MHO) individuals suggest that there are differences in both tissues and overall systemic function. The divergent phenotypes seen in MHO and MUO individuals provides evidence that differences in adipose tissue function are determined by local inflammatory responses driven by macrophage plasticity towards pro-inflammatory phenotypes.

Download or read book Anti inflammatory Effects of Cardiovascular Exercise written by Victoria Jeanne Vieira and published by ProQuest. This book was released on 2009 with total page 133 pages. Available in PDF, EPUB and Kindle. Book excerpt: Chronic consumption of a diet high in saturated fat (HFD) combined with a sedentary lifestyle has led to the obesity epidemic and its associated metabolic complications. At the heart of the metabolic aberrations that lead to obesity-associated diseases is inflammation that occurs in the visceral white adipose tissue (WAT). Reducing WAT inflammation, even in the absence of body weight changes, improves the metabolic consequences of obesity, highlighting the importance of the physiology of the WAT in the treatment of metabolic diseases. Exercise (EX) has been shown to reduce systemic inflammation, and this effect may be mediated by an EX-associated reduction in WAT inflammation. The overarching hypothesis of this work was that EX lowers inflammation in the visceral WAT as well as in the periphery, and that the mechanism involves, but is not fully explained by, a reduction in visceral WAT. This hypothesis was tested using one human intervention trial and two animal studies. In the first study, previously sedentary older adults participated in 10 months of cardiovascular (Cardio) or non-cardiovascular (Flex) EX. Cardio experienced significant improvements in fitness, systemic inflammation (as measured by serum C-reactive protein, CRP), as well as total and central (i.e., trunk) fat. Only the decrease in trunk fat was significantly related to the reduction in CRP, suggesting that the mechanism behind the anti-inflammatory effect of EX may involve a reduction in visceral WAT. In the second study, Balb/c mice were fed an HFD for 12 wks and then were randomized to 1 of 4 groups where they either remained on HFD and sedentary (HFSED), were exercise trained (HFEX), switched to an LFD (LFSED), or switched to an LFD and exercise trained (HFEX) for 12 wks. LFD and EX had differential effects on WAT gene transcription (MCP-1, F4/80, IL1ra), IR, and HS. In the final animal study, C57BL/6 mice were fed an HFD for 6 wks and then were randomized to HFSED, HFEX, LFSED, or LFEX for a 6 or a 12-wk intervention. EX and LFD both decreased weight gain and relative body fat, although LFD had a more robust effect than EX. Reductions in visceral WAT explained the decreases in WAT inflammation, IR, and HS seen at 6 wks. However, by 12 wks, unique independent effects of EX and LFD emerged such that both treatments reduced WAT inflammation and metabolic complications. WAT macrophage infiltration was the most important independent predictor of IR whereas visceral fat mass most strongly predicted HS. In summary, there are unique metabolic consequences of a sedentary lifestyle and chronic consumption of an HFD. Both LFD and EX are critically important behavioral strategies to improve WAT health and whole body metabolic function.

Download or read book Epicardial Adipose Tissue written by Gianluca Iacobellis and published by Springer Nature. This book was released on 2020-03-25 with total page 191 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is the first authoritative and comprehensive volume dedicated to epicardial adipose tissue (EAT). It provides an up-to-date and highly illustrated synopsis of the anatomical, biomolecular, genetic, imaging features, and clinical applications of EAT and its role in cardiovascular disease. It relays to the reader a contemporary view of the emerging interplay between the heart and adiposity-related diseases. In addition, this volume discusses the clinical implications and therapeutic targets of EAT in atrial fibrillation, heart failure and coronary artery disease. Comprehensive yet focused, Epicardial Adipose Tissue: From Cell to Clinic is an essential resource for physicians, residents, fellows, and medical students in cardiology, endocrinology, primary care, and health promotion and disease prevention.

Download or read book Reduced Adipose Tissue Hypoxia as a Potential Mechanism by which Exercise And or Low Fat Diet Reduces Inflammation in Obese Mice written by Matthew D. Cady and published by . This book was released on 2010 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Recent evidence from our lab suggests that, in high fat diet-induced (HFD, 45% fat) obese mice, moderate exercise, low fat diet (LFD, 10% fat), or their combination results in significant reductions in the visceral adipose tissue inflammation. Adipose tissue hypoxia, perhaps involving cell stress or death, has been suggested as one of the major initiating events inciting inflammation. Purpose- The purpose of the proposed study was to investigate adipose tissue hypoxia as a potential mechanism by which exercise and/or low fat diet might exert anti-inflammatory effects in adipose tissue. Methods- Male C57BL/6 mice (n=73) fed a 45% high fat diet for 6 weeks to induce obesity were randomly assigned to one of 4 groups: exercised (5 days/week, 40 min/day, 65-70% VO2 max) high fat diet or low fat diet or sedentary high fat diet or low fat diet for 12 weeks in a 2 x 2 design. In a subset of these mice (n=32), adipose tissue hypoxia was measured in epididymal fat pads using pimonidazole hydrochloride (injected intraperitonealy at a concentration of 60 mg/g body weight) and detected via ELISA. Results- Exercise and diet interventions had similar effects at attenuating body weight and epididymal fat pad weight gain as compared to a recent study from our lab where mice underwent the same interventions. There was a significant (F1,23=6.3; p=0.02) exercise x diet interaction such that adipose tissue hypoxia in the combined intervention was significantly less than all other groups with a tendency for low fat diet alone to be more efficacious than exercise alone. Conclusion- These circumstantial data suggest that adipose tissue hypoxia may be a potential mechanism by which both regular exercise and/or a low fat diet reduce adipose tissue inflammation and that exercise when combined with low fat diet provides a strong enough stimulus to reduce adipose tissue hypoxia.

Download or read book The Role of Nutrient Sensing in Macrophage Polarization written by Anthony Joseph Covarrubias and published by . This book was released on 2016 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Metabolic diseases, such as obesity and Type-II diabetes, are associated with chronic low-grade inflammation due to dysregulation of metabolic and inflammatory signaling pathways. During obesity monocytes infiltrate adipose tissue and polarize to M1 macrophages, displacing the M2 macrophages normally found in non-obese tissue. These M1 macrophages produce high levels of pro-inflammatory cytokines, which contributes to the development of insulin resistance and type-2 diabetes. Interestingly, while macrophages reside in all metabolic organs such as adipose tissue, how the nutrient status of the host affects macrophages function is not well understood. Thus, my thesis seeks to provide a clearer understanding of this important relationship and is of significant relevance to metabolic health and dysfunction.

Download or read book Adipose Tissue in Health and Disease written by Todd Leff and published by John Wiley & Sons. This book was released on 2010-03-19 with total page 530 pages. Available in PDF, EPUB and Kindle. Book excerpt: This timely and most comprehensive reference available on the topic covers all the different aspects vital in the fight against the global obesity epidemic. Following a look at adipose tissue development and morphology, the authors go on to examine its metabolic and endocrine functions and its role in disease. The final section deals with comparative and evolutionary aspects of the tissue. The result is an essential resource for cell and molecular biologists, physiologists, biochemists, pharmacologists, and those working in the pharmaceutical industry.

Download or read book Obesity and Lipotoxicity written by Ayse Basak Engin and published by Springer. This book was released on 2017-06-05 with total page 618 pages. Available in PDF, EPUB and Kindle. Book excerpt: Due to the resultant health consequences and considerable increase in prevalence, obesity has become a major worldwide health problem. “Obesity and Lipotoxicity” is a comprehensive review of the recent researches to provide a better understanding of the lipotoxicity-related mechanisms of obesity and the potential for the development of new treatment strategies. This book overviews the biochemical pathways leading to obesity-related metabolic disorders that occur subsequent to lipotoxicity. Chapters examine the deleterious effects of nutrient excess at molecular level including the cellular and molecular aspects of breast cancer, resistance to leptin, insulin, adiponectin, and interconnection between the circadian clock and metabolic pathways during high-fat feeding. “Lipotoxicity and Obesity” will be a useful resource for clinicians and basic science researchers, such as biochemists, toxicologists, immunologists, nutritionists, adult and pediatric endocrinologists, cardiologists, as well as students who are thought in this field.

Download or read book Genomic and Precision Medicine written by Geoffrey S. Ginsburg and published by Academic Press. This book was released on 2017-03-30 with total page 372 pages. Available in PDF, EPUB and Kindle. Book excerpt: Genomic and Precision Medicine: Primary Care, Third Edition is an invaluable resource on the state-of-the-art tools, technologies and policy issues that are required to fully realize personalized health care in the area of primary care. One of the major areas where genomic and personalized medicine is most active is the realm of the primary care practitioner. Risk, family history, personal genomics and pharmacogenomics are becoming increasingly important to the PCP and their patients, and this book discusses the implications as they relate to primary care practitioners. Presents a comprehensive volume for primary care providers Provides succinct commentary and key learning points that will assist providers with their local needs for the implementation of genomic and personalized medicine Includes a current overview on major opportunities for genomic and personalized medicine in practice Highlights case studies that illustrate the practical use of genomics in the management in patients

Download or read book PanVascular Medicine written by Peter Lanzer and published by Springer. This book was released on 2015-03-30 with total page 5004 pages. Available in PDF, EPUB and Kindle. Book excerpt: ​Vascular management and care has become a truly multidisciplinary enterprise as the number of specialists involved in the treatment of patients with vascular diseases has steadily increased. While in the past, treatments were delivered by individual specialists, in the twenty-first century a team approach is without doubt the most effective strategy. In order to promote professional excellence in this dynamic and rapidly evolving field, a shared knowledge base and interdisciplinary standards need to be established. Pan Vascular Medicine, 2nd edition has been designed to offer such an interdisciplinary platform, providing vascular specialists with state-of-the art descriptive and procedural knowledge. Basic science, diagnostics, and therapy are all comprehensively covered. In a series of succinct, clearly written chapters, renowned specialists introduce and comment on the current international guidelines and present up-to-date reviews of all aspects of vascular care.

Download or read book The Adipose Organ written by Saverio Cinti and published by . This book was released on 1999 with total page 94 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Pediatric Sleep Medicine written by David Gozal and published by Springer Nature. This book was released on 2021-04-15 with total page 719 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book provides comprehensive coverage of all aspects related to pediatric sleep and its associated disorders. It addresses the ontogeny and maturational aspects of physiological sleep and circadian rhythms, as well as the effects of sleep on the various organ systems as a function of development. Organized into nine sections, the book begins with a basic introduction to sleep, and proceeds into an extensive coverage of normative sleep and functional homeostasis. Part three then concisely examines the humoral and developmental aspects of sleep, namely the emerging role of metabolic tissue and the intestinal microbiota in regulation. Parts four, five, and six discuss diagnoses methods, techniques in sleep measurement, and specific aspects of pharmacotherapy and ventilator support for the pediatric patient. Various sleep disorders are explored in part seven, followed by an in-depth analysis of obstructive sleep apnea in part eight. The book concludes with discussions on the presence of sleep issues in other disorders such as Down syndrome, obesity, cystic fibrosis, and asthma. Written by recognized leaders in the field, Pediatric Sleep Medicine facilitates an extensive learning experience for practicing physicians who encounter specific sleep-related issues in their practice.

Download or read book Adipose Tissue in the Cardiovascular Homeostasis and Disease written by Thiago Bruder and published by Frontiers Media SA. This book was released on 2022-01-13 with total page 139 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Adipose Tissue and Inflammation written by Atif B. Awad and published by CRC Press. This book was released on 2009-10-08 with total page 318 pages. Available in PDF, EPUB and Kindle. Book excerpt: The American Obesity Association identifies obesity's link to numerous medical conditions, including hypertension, type 2 diabetes, cardiovascular disease, several cancers, and a host of inflammatory disorders. Evidence indicates that inflammation has more than a corollary relation with obesity; that in fact, obesity itself manifests a low-grade, m

Download or read book Coronary Circulation written by Johnathan D. Tune and published by Morgan & Claypool. This book was released on 2014-07 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: The coronary circulation is unique in that it is responsible for maintaining adequate oxygen and substrate delivery to the organ that generates the pressure needed to drive blood throughout the entire circulatory system. In the simplest terms, coronary blood flow is directly proportional to the arterial pressure gradient across the coronary vasculature and inversely proportional to coronary vascular resistance. However, myocardial perfusion is collectively regulated by a complex variety of mechanisms which include: (1) extravascular compressive forces; (2) diastolic time fraction; (3) coronary perfusion pressure; (4) myocardial metabolism (local metabolic factors); (5) endothelial-derived substances; (6) neuro-humoral influences; and (7) arterial oxygen tension and content. This book considers each of these determinants with particular emphasis on the functional interaction between the physical and biological determinants of myocardial perfusion. Pathophysiologic aspects of coronary atherosclerosis and cardiovascular disease states are also considered. Table of Contents: Abbreviations / Acknowledgments / Introduction / Basic Coronary Anatomy / Myocardial-Coronary Interaction / Arterial Pressure and Autoregulation / Local Metabolic Control / Endothelial-Dependent Control / Neural Activation and Circulating Hormones / Coronary Stenosis, Myocardial Ischemia, and Effects of Disease / Summary / Reference List / Author Biography

Download or read book The ESC Textbook of Vascular Biology written by Rob Krams and published by Oxford University Press. This book was released on 2017 with total page 347 pages. Available in PDF, EPUB and Kindle. Book excerpt: The ESC Textbook of Vascular Biology is a rich and clearly laid-out guide by leading European scientists providing comprehensive information on vascular physiology, disease, and research.

Download or read book Atlas of Lymphoscintigraphy and Sentinel Node Mapping written by Giuliano Mariani and published by Springer Science & Business Media. This book was released on 2012-12-23 with total page 306 pages. Available in PDF, EPUB and Kindle. Book excerpt: Although lymphoscintigraphy was originally introduced into clinical routine for identification of the cause of peripheral edema, more recently it has been widely applied for radioguided biopsy of the sentinel lymph node in patients with solid cancers. The procedure is now considered crucial for adequate planning of oncologic surgery in a growing number of cancers. This atlas presents a collection of richly illustrated teaching cases that demonstrate the clinical relevance and impact of lymphoscintigraphy in different pathologic conditions. After introductory chapters on the anatomy, physiology, and pathophysiology of lymphatic circulation, the role of lymphoscintigraphy in differential diagnosis of peripheral edema and characterization of intracavitary lymph effusions is addressed. The principal focus of the book, however, is on the use of lymphoscintigraphic mapping for radioguided sentinel node biopsy in cutaneous melanoma and cancers at a range of anatomic sites. The most commonly observed lymphoscintigraphic patterns are depicted, and anatomic variants and technical pitfalls of the procedure receive careful attention. The role of tomographic multimodality imaging is also considered. The atlas will be an excellent learning tool for residents in nuclear medicine and other specialists with an interest in the field.