Investigation Into The Mechanisms Of Hydrogen Sulfide Signaling In The Cardiovascular System And The Effects Of Age And Caloric Restriction

Aorta CSE and CBS mRNA expression was higher with CR. Hydrogen sulfide production was also higher with CR in aorta and liver. I conclude that in rat aorta the triphasic responses to hypoxia and H2S are mediated by different mechanisms, hydrogen sulfide up-regulates eNOS/NO production through an Akt-dependent mechanism, and the increased sensitivity to hydrogen sulfide and increased protein expression of CSE and CBS with age in aorta point to a drop in hydrogen sulfide bioavailability, while CR maintains CSE/CBS function. These studies reveal novel, age-sensitive mechanisms of hydrogen sulfide action to regulate vascular tone. They also illustrate the benefit of CR on the hydrogen sulfide signaling system. This is quite timely, given the emerging roles of hydrogen sulfide in cardiovascular pathologies.

Hydrogen sulfide (H2S) has emerged as an important gas signalling molecule in a series of organs/tissues, on the diseases of which it plays protective roles, such as proangiogenic effects in ischemic tissues, antiapoptotic effects in the cardiomyocytes, regularization of fatal arrhythmia in myocardial infarction, amelioration of inflammation in autoimmune diseases, modification of neuronal transmission, increase in sodium excretion from the kidney, and amelioration of insulin resistance, etc. This book focuses on the effect of hydrogen sulfide in cardiovascular system, immune system, nervous system, kidney, as well as on the metabolism of glucose and lipids and regulation of ion channels and so on. This book also provides the advances in the understanding of endogenous H2S metabolism and H2S protein targets, as well as H2S donors. It will benefit researchers in both academics and industry working on the underlying mechanism of H2S field and the future of translational medicine of H2S.

This book explores techniques for exploring hydrogen sulfide (H2S) and its effects on the vascular system through numerous experimental animal models and vascular preparations. Alterations of vascular H2S generation/signaling may be involved in the pathogenesis of systemic and pulmonary arterial hypertension, ischemic heart disease, ischemic stroke, preeclampsia, and erectile dysfunction, and H2S also serves as an attractive target for pharmacotherapy of cardiovascular diseases, as well as possible effects on cancer, wound healing, and diabetic retinopathy, among other pathologies. Written for the highly successful Methods in Molecular Biology series, chapters include introductions to their respective topics, lists of the necessary materials and reagents, step-by-step, readily reproducible laboratory protocols, and tips on troubleshooting and avoiding known pitfalls. Authoritative and practical, Vascular Effects of Hydrogen Sulfide: Methods and Protocols is an ideal aid for scientists working to extend our knowledge in this valuable and wide-ranging field of study.

This book puts hydrogen sulfide in context with other gaseous mediators such as nitric oxide and carbon monoxide, reviews the available mechanisms for its biosynthesis and describes its physiological and pathophysiological roles in a wide variety of disease states. Hydrogen sulfide has recently been discovered to be a naturally occurring gaseous mediator in the body. Over a relatively short period of time this evanescent gas has been revealed to play key roles in a range of physiological processes including control of blood vessel caliber and hence blood pressure and in the regulation of nerve function both in the brain and the periphery. Disorders concerning the biosynthesis or activity of hydrogen sulfide may also predispose the body to disease states such as inflammation, cardiovascular and neurological disorders. Interest in this novel gas has been high in recent years and many research groups worldwide have described its individual biological effects. Moreover, medicinal chemists are beginning to synthesize novel organic molecules that release this gas at defined rates with a view to exploiting these new compounds for therapeutic benefit.

Molecular Biology of B Cells, Second Edition is a comprehensive reference to how B cells are generated, selected, activated and engaged in antibody production. All of these developmental and stimulatory processes are described in molecular, immunological, and genetic terms to give a clear understanding of complex phenotypes. Molecular Biology of B Cells, Second Edition offers an integrated view of all aspects of B cells to produce a normal immune response as a constant, and the molecular basis of numerous diseases due to B cell abnormality. The new edition continues its success with updated research on microRNAs in B cell development and immunity, new developments in understanding lymphoma biology, and therapeutic targeting of B cells for clinical application. With updated research and continued comprehensive coverage of all aspects of B cell biology, Molecular Biology of B Cells, Second Edition is the definitive resource, vital for researchers across molecular biology, immunology and genetics.

This report considers the biological and behavioral mechanisms that may underlie the pathogenicity of tobacco smoke. Many Surgeon General's reports have considered research findings on mechanisms in assessing the biological plausibility of associations observed in epidemiologic studies. Mechanisms of disease are important because they may provide plausibility, which is one of the guideline criteria for assessing evidence on causation. This report specifically reviews the evidence on the potential mechanisms by which smoking causes diseases and considers whether a mechanism is likely to be operative in the production of human disease by tobacco smoke. This evidence is relevant to understanding how smoking causes disease, to identifying those who may be particularly susceptible, and to assessing the potential risks of tobacco products.

Diet and Health examines the many complex issues concerning diet and its role in increasing or decreasing the risk of chronic disease. It proposes dietary recommendations for reducing the risk of the major diseases and causes of death today: atherosclerotic cardiovascular diseases (including heart attack and stroke), cancer, high blood pressure, obesity, osteoporosis, diabetes mellitus, liver disease, and dental caries.

All behaviours are acquired by us by learning it from our environment. Hence, they can be changed or modified by modifying the learning environment through various psychological and educational techniques. The topic of this book is a View to Clinical Psychology. As the name suggests the book deals with an important aspect of psychology and clinical psychology, that is, mental retardation and behavior problems. The book entitled Clinical Psychology is an original research work carried out by the author, a pioneer work in providing treatment to individuals suffering from various psychological disorders. This well researched work will be of great value to researchers, practitioners and students of psychology, psychiatry, and other behavioural sciences.