Chemistry And Biological Activity Of Steroids

Author : Jorge António Ribeiro Salvador,Maria Manuel Cruz Silva
Publisher : BoD – Books on Demand
Page : 144 pages
File Size : 52,9 Mb
Release : 2020-02-26
Category : Science
ISBN : 9781789855159

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Chemistry and Biological Activity of Steroids by Jorge António Ribeiro Salvador,Maria Manuel Cruz Silva Pdf

The steroid scaffold continues to be the structural basis of new drugs for a variety of targets and diseases. Indeed, steroids interact with enzymes and receptors in a strikingly specific manner. Chemistry and Biological Activity of Steroids aims to provide an updated overview of recent advances in the medicinal chemistry of steroids. Novel synthetic methods in the steroids field, including steroid biotransformations, new steroids able to tackle steroid receptors, and steroid enzymes with clinical relevance, are critically reviewed in this book. Furthermore, the diverse physiopathological roles of oxysterols and their therapeutic value are also discussed.

Author : Martin Bohl
Publisher : CRC Press
Page : 483 pages
File Size : 41,5 Mb
Release : 2018-01-18
Category : Science
ISBN : 9781351083256

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Molecular Structure and Biological Activity of Steroids by Martin Bohl Pdf

Molecular Structure and Biological Activity of Steroids focuses on the indentification of steroid structural features that control particular biological effects. Steroid geometry plays a critical role in steroid activity; therefore, the results of X-ray crystallographic, NMR spectroscopic, and theoretical studies on structure-activity relationships form an integral part of the book. Well-established observations and proposed models are presented, summarizing knowledge of molecular features (e.g., steroid backbone structures, side-chain constitutions, substitution sites, configurations, hydrogen-bonding patterns) that can affect steroid action. The book also provides overviews about recent progress in various frontier fields of steroid research, including such areas as sex steroids, glucocorticoids, aromatase inhibitors, vitamin D metabolites, brassinosteroids, neuromuscular blocking agents, and cardiotonic steroids. Molecular Structure and Biological Activity of Steroids is a "must-have" resource for biochemists, pharmacologists, endocrinologists, biophysicists, and others actively involved in steroid research.

Author : Louis Frederick Fieser,Mary Fieser
Publisher : Unknown
Page : 964 pages
File Size : 54,6 Mb
Release : 2013-01
Category : Alkaloids
ISBN : 1258535424

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Steroids by Louis Frederick Fieser,Mary Fieser Pdf

Author : Marina Savic,Erzsébet Mernyák,Jovana Ajdukovic
Publisher : Mdpi AG
Page : 0 pages
File Size : 51,8 Mb
Release : 2023-12-26
Category : Science
ISBN : 3036596178

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Steroid Compounds with Potential Biological Activity by Marina Savic,Erzsébet Mernyák,Jovana Ajdukovic Pdf

Steroids are a large group of compounds whose structure is based on a 17-carbon skeleton, with a specific cyclopentanoperhydrophenanthrene ring system. Natural steroids have been fine-tuned through evolution to build membranes; act as chemical messengers that regulate metabolic, immune and reproductive functions in animals and stimulate the growth of, or otherwise protect, animal organisms. The steroid core represents a suitable motive for structural modifications. Therefore, a large group of semi-synthetic steroid derivatives have occupied the attention of synthetic chemists as well as medicinal chemists due to their potential biological activity, including anticancer, antibacterial, anti-inflammatory and (anti)hormonal activities. This Reprint of the Special Issue of Molecules titled "Steroid Compounds with Potential Biological Activity" is dedicated to both experimental and theoretical studies on steroid chemistry, structural biology, biosynthesis, metabolism, and pharmacology. The Issue focuses on the isolation and synthesis of steroid compounds, diverse in origin, as well as their structural characterization and identification. Published articles and reviews relate to in vitro and in silico studies of the pharmacological properties, molecular biology, biochemistry and structural biology of steroids.

Author : Daniel Lednicer
Publisher : Wiley
Page : 152 pages
File Size : 51,7 Mb
Release : 2010-11-15
Category : Science
ISBN : 0470660856

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Steroid Chemistry at a Glance by Daniel Lednicer Pdf

The term steroid has become virtually synonymous with drug abuse in sport to the majority of the public. However these steroids - androgens - actually comprise only a single relatively small class of biologically active steroids, and are overshadowed by a large collection of compounds, a sizeable number of which are commercial drugs that share the same structural carbon skeleton. The development of these drugs has led to a large body of organic chemistry often denoted as "Steroid Chemistry". Steroid Chemistry At A Glance provides a concise overview of the main principles and reactions of steroid chemistry. Topics covered include: history, isolation and structure determination of steroids steroid nomenclature and stereochemistry natural sources of steroids synthesis and reactions of aromatic a-ring steroids, androstanes, and pregnanes steroids with a spirolactone at position 17 steroids with hetrocyclic ring A compounds derived from cholesterol Based on the highly successful and student friendly "at a glance" approach, the information is presented in integrated, self contained double page spreads of text and illustrative material. Students of chemistry and pharmacy using Steroid Chemistry at a Glance will find they have a resource with which they can quickly, concisely and confidently acquire, regularly review and revise the basic facts that underpin the properties, synthesis and reactions of this important class of natural products. It will also serve as a handy bench reference for postgraduates and professional chemists.

Author : F. J. Zeelen
Publisher : Elsevier Publishing Company
Page : 380 pages
File Size : 40,5 Mb
Release : 1990
Category : Medical
ISBN : UOM:39015019394280

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Medicinal Chemistry of Steroids by F. J. Zeelen Pdf

The many new and fascinating data which have been gathered in the period 1985-1990 have made molecular endocrinology into a mature discipline stimulating creative chemists to design innovative drugs. Within a few years, the primary structures of all the steroid receptor proteins and most of the steroid-converting enzymes have been determined and detailed studies of their mechanism of action at a molecular level have become possible. Medicinal chemists have developed steroidal affinity probes to examine the binding sites of enzymes and receptors, and these investigations were supplemented with studies of modified enzymes and receptors prepared with the aid of site-directed mutagenesis. In view of these rapid scientific developments, the author deemed it appropriate to review the present knowledge of the medicinal chemistry of the steroids. In this book, the discussion is supported by the addition of some chapters which summarize the available data on the biological counterparts of the steroids, the steroid-converting enzymes and the steroid receptors.

Author : Robert C. Bast, Jr.,Carlo M. Croce,William N. Hait,Waun Ki Hong,Donald W. Kufe,Martine Piccart-Gebhart,Raphael E. Pollock,Ralph R. Weichselbaum,Hongyang Wang,James F. Holland
Publisher : John Wiley & Sons
Page : 2008 pages
File Size : 49,5 Mb
Release : 2017-03-10
Category : Medical
ISBN : 9781119000846

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Holland-Frei Cancer Medicine by Robert C. Bast, Jr.,Carlo M. Croce,William N. Hait,Waun Ki Hong,Donald W. Kufe,Martine Piccart-Gebhart,Raphael E. Pollock,Ralph R. Weichselbaum,Hongyang Wang,James F. Holland Pdf

Holland-Frei Cancer Medicine, Ninth Edition, offers a balanced view of the most current knowledge of cancer science and clinical oncology practice. This all-new edition is the consummate reference source for medical oncologists, radiation oncologists, internists, surgical oncologists, and others who treat cancer patients. A translational perspective throughout, integrating cancer biology with cancer management providing an in depth understanding of the disease An emphasis on multidisciplinary, research-driven patient care to improve outcomes and optimal use of all appropriate therapies Cutting-edge coverage of personalized cancer care, including molecular diagnostics and therapeutics Concise, readable, clinically relevant text with algorithms, guidelines and insight into the use of both conventional and novel drugs Includes free access to the Wiley Digital Edition providing search across the book, the full reference list with web links, illustrations and photographs, and post-publication updates

Author : Martin Bohl,William L. Duax
Publisher : CRC Press
Page : 495 pages
File Size : 52,9 Mb
Release : 1992-08-14
Category : Science
ISBN : 084936955X

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Molecular Structure and Biological Activity of Steroids by Martin Bohl,William L. Duax Pdf

Molecular Structure and Biological Activity of Steroids focuses on the indentification of steroid structural features that control particular biological effects. Steroid geometry plays a critical role in steroid activity; therefore, the results of X-ray crystallographic, NMR spectroscopic, and theoretical studies on structure-activity relationships form an integral part of the book. Well-established observations and proposed models are presented, summarizing knowledge of molecular features (e.g., steroid backbone structures, side-chain constitutions, substitution sites, configurations, hydrogen-bonding patterns) that can affect steroid action. The book also provides overviews about recent progress in various frontier fields of steroid research, including such areas as sex steroids, glucocorticoids, aromatase inhibitors, vitamin D metabolites, brassinosteroids, neuromuscular blocking agents, and cardiotonic steroids. Molecular Structure and Biological Activity of Steroids is a "must-have" resource for biochemists, pharmacologists, endocrinologists, biophysicists, and others actively involved in steroid research.

Author : Martin Bohl
Publisher : CRC Press
Page : 669 pages
File Size : 45,5 Mb
Release : 2018-01-18
Category : Science
ISBN : 9781351091701

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Molecular Structure and Biological Activity of Steroids by Martin Bohl Pdf

Molecular Structure and Biological Activity of Steroids focuses on the indentification of steroid structural features that control particular biological effects. Steroid geometry plays a critical role in steroid activity; therefore, the results of X-ray crystallographic, NMR spectroscopic, and theoretical studies on structure-activity relationships form an integral part of the book. Well-established observations and proposed models are presented, summarizing knowledge of molecular features (e.g., steroid backbone structures, side-chain constitutions, substitution sites, configurations, hydrogen-bonding patterns) that can affect steroid action. The book also provides overviews about recent progress in various frontier fields of steroid research, including such areas as sex steroids, glucocorticoids, aromatase inhibitors, vitamin D metabolites, brassinosteroids, neuromuscular blocking agents, and cardiotonic steroids. Molecular Structure and Biological Activity of Steroids is a "must-have" resource for biochemists, pharmacologists, endocrinologists, biophysicists, and others actively involved in steroid research.

Author : V. A. Khripach,V. N. Zhabinskii,A. E. de Groot
Publisher : Academic Press
Page : 456 pages
File Size : 52,8 Mb
Release : 1998-11-03
Category : Science
ISBN : 0080528317

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Brassinosteroids by V. A. Khripach,V. N. Zhabinskii,A. E. de Groot Pdf

Plants possess the ability to biosynthesize a large variety of steroids, but it was not until 1979 that a hormonal function was demonstrated in plants. Today, about 40 structurally and functionally related steroids, known as brassinosteroids, have been isolated from natural sources. Brassinosteroids demonstrate various kinds of regulatory activities in the growth and development of plants. This book is based on a 1990 Russian monograph, but includes all important subsequent literature and developments, including unpublished data from the authors' laboratories. BRASSINOSTEROIDS: A New Class of Plant Hormones covers: Structures and classification Isolation and spectroscopic determination Biosynthesis and metabolism Natural product synthesis Physiological mode of action Structure-activity relationships Practical applications in agriculture

Author : Jiaju Zhou
Publisher : Walter de Gruyter GmbH & Co KG
Page : 566 pages
File Size : 46,6 Mb
Release : 2019-09-23
Category : Science
ISBN : 9783110653922

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Polyketides and Steroids by Jiaju Zhou Pdf

This 8-volume set provides a systematic description on 8,350 active marine natural products from 3,025 various kinds of marine organisms. The diversity of structures, biological resources and pharmacological activities are discussed in detail. Molecular structural classification system with 264 structural types are developed as well. The 5th volume mainly illustrates the molecular formula and structures of polyketides and steroids.

Author : Anthony W. Norman,Gerald Litwack
Publisher : Academic Press
Page : 822 pages
File Size : 53,8 Mb
Release : 2014-06-28
Category : Medical
ISBN : 9781483258102

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Hormones by Anthony W. Norman,Gerald Litwack Pdf

Hormones provides a comprehensive treatment of human hormones viewed in the light of modern theories of hormone action and in the context of current understanding of subcellular and cellular architecture and classical organ physiology. The book begins with discussions of the first principles of hormone action and the seven classes of steroid hormones and their chemistry, biosynthesis, and metabolism. These are followed by separate chapters that address either a classical endocrine system, e.g., hypothalamic hormones, posterior pituitary hormones, anterior pituitary hormones, ,thyroid hormones, pancreatic hormones, gastrointestinal hormones, calcium regulating hormones, adrenal corticoids, hormones of the adrenal medulla, androgens, estrogens and progestins, and pregnancy and lactation hormones; or newer domains of hormone action which are essential to a comprehensive understanding of hormone action, including prostaglandins, thymus hormones, and pineal hormones. The book concludes with a presentation of hormones of the future, i.e., cell growth factors. This book is intended for use by first-year medical students, graduate students, and advanced undergraduates in the biological sciences. It is also hoped that this book will fill the void that exists for resource materials for teaching cellular and molecular endocrinology and that it will be employed as an equal partner with most standard biochemistry textbooks to provide a comprehensive and balanced coverage of this realm of biology.

Author : Antonino Belfiore,Derek LeRoith
Publisher : Springer
Page : 0 pages
File Size : 45,6 Mb
Release : 2018-02-08
Category : Medical
ISBN : 3319446746

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Principles of Endocrinology and Hormone Action by Antonino Belfiore,Derek LeRoith Pdf

This volume provides comprehensive coverage of the current knowledge of the physiology of the endocrine system and hormone synthesis and release, transport, and action at the molecular and cellular levels. It presents essential as well as in-depth information of value to both medical students and specialists in Endocrinology, Gynecology, Pediatrics, and Internal Medicine. Although it is well established that the endocrine system regulates essential functions involved in growth, reproduction, and homeostasis, it is increasingly being recognized that this complex regulatory system comprises not only hormones secreted by the classic endocrine glands but also hormones and regulatory factors produced by many organs, and involves extensive crosstalk with the neural and immune system. At the same time, our knowledge of the molecular basis of hormone action has greatly improved. Understanding this complexity of endocrine physiology is crucial to prevent endocrine disorders, to improve the sensitivity of our diagnostic tools, and to provide the rationale for pharmacological, immunological, or genetic interventions. It is such understanding that this book is designed to foster.

Author : D.A. Willoughby,J.P. Giroud
Publisher : Springer Science & Business Media
Page : 873 pages
File Size : 49,7 Mb
Release : 2012-12-06
Category : Medical
ISBN : 9789401094238

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Inflammation: Mechanisms and Treatment by D.A. Willoughby,J.P. Giroud Pdf

This report on Future Trends in Inflammation IV records another of the multidisciplinary meetings organized by the European Biological Research Association. The organizers wish to record their thanks to all the participants and delegates who made this such an enjoyable meeting. Our thanks are due to a number of members of the pharmaceutical industry who so kindly donated funds. These funds were used to provide grants for young research workers to attend this meeting. Many people have kindly given their time and help to make this congress possible. It is impossible to list them by name, but we are profoundly grateful. We were dubious at the outset as to whether to hold this meeting in a period when many other meetings are being organized on inflammation. The enthusiastic attendance proves that we were right in going ahead. The next international meeting will be held in France in 1983. For further details please contact: Professor J. P. Giroud Department of Pharmacology, Hopital Cochin 75014 Paris, France D. A. Willoughby J. P. Giroud xxxiii Section I Future Trends CHAIRMAN: L. Chedid CO-CHAIRMAN: Dame Honor Fell 1 The participation of mononucleur phagocytes in immune based inflammatory processes with special reference to their secretory responses P. DAVIES AND R. J.

Author : H.-L. Krüskemper
Publisher : Elsevier
Page : 246 pages
File Size : 44,7 Mb
Release : 2013-10-22
Category : Medical
ISBN : 9781483265049

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Anabolic Steroids by H.-L. Krüskemper Pdf

Anabolic Steroids attempts to trace the development of anabolic steroids in the chemical, experimental biological, and clinical disciplines, and presents a precise outline of the current state of substantiated knowledge. This book deals with anabolic steroids derived from natural androgens and characterized by their stimulatory action on the biosynthesis of tissue protein and by their simultaneous low androgenicity. The biochemical part is a review of substantiated and current knowledge based largely on experimental results with animals, while the clinical part attempts to bring out the pathophysiological rationale of therapy with anabolic steroids, again based on experimental data. The book begins with a discussion of the nomenclature and chemistry of anabolic steroids. This is followed by separate chapters on the metabolism, activities, and mechanism of action of anabolic steroids; clinical application of anabolic steroids, side effects, and test procedures.