Organic Nitrates

Organic Nitrates PDF

Author: P. Needleman

Publisher: Springer Science & Business Media

Published: 2012-12-06

Total Pages: 206

ISBN-13: 364266024X

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Nitroglycerin and other organic nitrates have been used for over a century in the treatment of angina pectoris. Millions of patients, throughout the world, have placed nitroglycerin tablets under the tongue and have experienced rapid and dramatic relief from the chest pain that frequently occurs as a manifestation of disease of the coronary arteries. The empirical observation of the safe use of nitrates for tile alleviation of the symptoms of angina have led to their widespread medical acceptance. The use of organic nitrates preceded any knowledge of their mechanism of action or their ultimate metabolic fate. Thus, more simply stated, although sub lingual nitrates helped the patients, little was known concerning what these drugs do to the body or what the body does to the drugs. A substantial number of investigators have focused on these questions especially during the last two decades. We now have considerably more insight into the pathways of degradation of organic nitrates and the relationship of the metabolic processes to the biological action of these agents. Similarly, considerable effort has been expended in understanding the mechanism of action of these agents directly on vascular smooth muscle and on cardiac work and performance. Finally, there is a more substantive understanding of the physiology of the coronary circulation as well as the" pathophysiologic manifestations of myocardial disease.

Radicals for Life

Radicals for Life PDF

Author: Ernst van Faassen

Publisher: Elsevier

Published: 2011-10-13

Total Pages: 444

ISBN-13: 0080489591

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Radicals for Life: the Various Forms of Nitric Oxide provides an up-to-date overview of the role of nitrosocompounds and nitrosyl-iron complexes in physiology. Nitrosocompounds can be considered as stabilised forms of nitric oxide, one of the most important regulatory molecules in physiology today. Many nitrosocompounds share some of the physiological functions of nitric oxide, and may be formed inside living organisms. This is the first book to be published that is dedicated to the role of such nitrosocompounds in physiology, with particular emphasis on the nitrosocompounds that are endogenously formed in higher organisms and humans. Points of discussion include: physical and chemical properties of the compounds, the main chemical pathways in vivo, as well as the physiological effects that have been recognised to date. Each of the nineteen chapters is written by distinguished specialists in the field, well known for their original and important contributions to the subject. Also included are results from a wide range of studies in vitro, in cell cultures, animal models and human volunteers. Examples of alternative forms of nitric oxide, with special emphasis on their protective role against widespread human diseases like atherosclerosis, Alzheimer's disease, diabetes, sexual dysfunction, and renal insufficiency to stroke and ischemia are also included. First monograph to consider and provide an overview of endogenous nitrosocompounds and nitrosyl-iron complexes Extensive bibliographic references, written by specialists of human physiology Providing high scientific quality with a focus on implications for human diseases

Textbook of Angiology

Textbook of Angiology PDF

Author: John B. Chang

Publisher: Springer

Published: 2012-12-06

Total Pages: 1360

ISBN-13: 1461211905

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A fully integrated view of the medical and surgical aspects of both vascular and cardiovascular disease. Covering the complete spectrum of angiology, from basic physiologic principles to phlebology, this is the only text of its kind, and will thus be a must for the libraries of cardiologists and cardiovascular surgeons alike.

Hepatotoxicity

Hepatotoxicity PDF

Author: Hyman J. Zimmerman

Publisher: Lippincott Williams & Wilkins

Published: 1999

Total Pages: 848

ISBN-13: 9780781719520

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Written by the foremost authority in the field, this volume is a comprehensive review of the multifaceted phenomenon of hepatotoxicity. Dr. Zimmerman examines the interface between chemicals and the liver; the latest research in experimental hepatotoxicology; the hepatotoxic risks of household, industrial, and environmental chemicals; and the adverse effects of drugs on the liver. This thoroughly revised, updated Second Edition features a greatly expanded section on the wide variety of drugs that can cause liver injury. For quick reference, an appendix lists these medications and their associated hepatic injuries. Also included are in-depth discussions of drug metabolism and factors affecting susceptibility to liver injury.

Volatile Organic Compounds in the Atmosphere

Volatile Organic Compounds in the Atmosphere PDF

Author: Ralf Koppmann

Publisher: John Wiley & Sons

Published: 2008-04-15

Total Pages: 512

ISBN-13: 0470994150

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Every day, large quantities of volatile organic compounds (VOCs) are emitted into the atmosphere from both anthropogenic and natural sources. The formation of gaseous and particulate secondary products caused by oxidation of VOCs is one of the largest unknowns in the quantitative prediction of the earth’s climate on a regional and global scale, and on the understanding of local air quality. To be able to model and control their impact, it is essential to understand the sources of VOCs, their distribution in the atmosphere and the chemical transformations which remove these compounds from the atmosphere. In recent years techniques for the analysis of organic compounds in the atmosphere have been developed to increase the spectrum of detectable compounds and their detection limits. New methods have been introduced to increase the time resolution of those measurements and to resolve more complex mixtures of organic compounds. Volatile Organic Compounds in the Atmosphere describes the current state of knowledge of the chemistry of VOCs as well as the methods and techniques to analyse gaseous and particulate organic compounds in the atmosphere. The aim is to provide an authoritative review to address the needs of both graduate students and active researchers in the field of atmospheric chemistry research.

Nitration of Hydrocarbons and Other Organic Compounds

Nitration of Hydrocarbons and Other Organic Compounds PDF

Author: A. V. Topchiev

Publisher: Elsevier

Published: 2013-10-22

Total Pages: 336

ISBN-13: 1483184382

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Nitration of Hydrocarbons and Other Organic Compounds tackles various concerns in the process of substituting hydrogen atoms in the aromatic or heterocyclic nucleus, or in saturated hydrocarbon, by nitro groups. The title first covers the nitration of aromatic and heterocyclic compounds with nitric acid and nitrating mixture, and then proceeds to discussing the mechanism of the nitration of aromatic compounds with nitric acid and nitrating mixture. Next, the selection deals with the nitration of saturated, aromatic-aliphatic and unsaturated hydrocarbons with nitric acid. The text also talks about the nitration with nitrogen oxides, along with the nitration of amines. The last chapter details the nitration of organic compounds with organic and inorganic nitrates and nitroxyl. The book will be of great interest to students, researchers, and practitioners of organic chemistry.

Nitrates Updated

Nitrates Updated PDF

Author: Udho Thadani

Publisher: Springer Science & Business Media

Published: 2012-12-06

Total Pages: 292

ISBN-13: 1461311357

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Nitrates remain among the most commonly used therapeutic agents in cardiology. That they can re lieve pain in angina pectoris has been known at least since 1867, when Lauder Brunton described their clinical use. Now, almost 130 years later, we are constantly learning more about their optimal use in anginal syndromes. For example, there is no doubt that nitrate tolerance occurs, but equally no doubt that certain drug dosages help to attenuate such toler ance. Thus, our understanding of nitrate tolerance has been taken further by the advent of new nitrate preparations and by studies at a basic science level. The current intense interest in nitrates has been rekindled by the growing emphasis on the role of the endothelium in the production of nitric oxide, a basic cardiovascular regulator. If nitric oxide is vasodilator and protects the vascular endothelium, then nitrates should also have similar properties. Hence this book starts off with the role of the endothelium and ni trates in vasodilation. Next, the mechanisms of ac tion of nitrates are considered with emphasis on the role of cyclic GMP. The chief limitation to the use of nitrates lies in nitrate tolerance. After carefully looking at all the evidence, the authors of the third chapter conclude that the mechanism is likely to be multifactorial. The mechanism responsible for the tolerance still remains unknown. In vitro tolerance may be due to enhanced production of vascular superoxide [1].