Jr. Ruffolo – författare

Since the discovery of endothelin, major advances have been made in understanding the molecular structure and function of the endothelin receptors. At least two subtypes of receptors, designated ETA and ETB, have been identified through biochemical and pharmacological techniques. These subtypes are cloned and expressed and additional subtypes appear to exist. The biochemical events involved in the signal transduction processes that ultimately activate the cellular machinery involved in the end-organ responses are presented, as are the mechanisms by which the receptors recognize specific and different G-proteins. Functions mediated by the receptors at the cellular, tissue and, organ level are reviewed in detail, as well as the roles that they may play a part in the physiologic and pathophysiologic processes in animals and in humans.This book is unique in its breadth of scope. The most recent and important advances, from the intracellular level of the nucleus to the functional effect that endothelin receptors mediate in intact organs, are compiled and reviewed.

During the past decade, great strides have been made in our un­ derstanding of the biochemistry and pharmacology of the alpha-l adrenergic receptor.

Since the discovery of endothelin, major advances have been made in understanding the molecular structure and function of the endothelin receptors. At least two subtypes of receptors, designated ETA and ETB, have been identified through biochemical and pharmacological techniques. These subtypes are cloned and expressed and additional subtypes appear to exist. The biochemical events involved in the signal transduction processes that ultimately activate the cellular machinery involved in the end-organ responses are presented, as are the mechanisms by which the receptors recognize specific and different G-proteins. Functions mediated by the receptors at the cellular, tissue and, organ level are reviewed in detail, as well as the roles that they may play a part in the physiologic and pathophysiologic processes in animals and in humans.This book is unique in its breadth of scope. The most recent and important advances, from the intracellular level of the nucleus to the functional effect that endothelin receptors mediate in intact organs, are compiled and reviewed.

Since the discovery of endothelin, major advances have been made in understanding the molecular structure and function of the endothelin receptors. At least two subtypes of receptors, designated ETA and ETB, have been identified through biochemical and pharmacological techniques. These subtypes are cloned and expressed and additional subtypes appear to exist. The biochemical events involved in the signal transduction processes that ultimately activate the cellular machinery involved in the end-organ responses are presented, as are the mechanisms by which the receptors recognize specific and different G-proteins. Functions mediated by the receptors at the cellular, tissue and, organ level are reviewed in detail, as well as the roles that they may play a part in the physiologic and pathophysiologic processes in animals and in humans.This book is unique in its breadth of scope. The most recent and important advances, from the intracellular level of the nucleus to the functional effect that endothelin receptors mediate in intact organs, are compiled and reviewed.

During the past decade, great strides have been made in our un­ derstanding of the biochemistry and pharmacology of the alpha-l adrenergic receptor. The alpha-l adrenergic receptor plays a key role in biological function. This is evidenced by the fact that the alpha-l adrenergic receptor plays a prominent functional role in most organs of the body and in the key systems responsible for survival of the organism and maintenance of optimum biological activity. This is most apparent in the cardiovascular system, in which alpha-l adrenergic receptors are the single most important receptor involved in the maintenance of blood pressure and circu­ latory function. It is appropriate, therefore, that recent findings related to the pharmacology and biochemistry of the alpha-l adrenergic receptor be compiled, since this subject has not been reviewed in detail in recent years. It is the purpose of this book to present a series of reviews of key experimental findings that shed new light on the alpha-l adrenergic receptor and the manner in which it functions. Classically, most receptors have been characterized based on structure-activity relationships obtained for selective agonists and antagonists interacting with the receptor. Although there are many newer and more sophisticated approaches to receptor char­ acterization, structure-activity relationships still provide impor­ tant information regarding the chemical requirements made by the receptor for its occupation by ligands and its subsequent acti­ vation by those ligands possessing intrinsic efficacy and, there­ fore, agonist activity.