STIMULUS-SECRETION COUPLING - CONCEPT AND CLUES FROM CHROMAFFIN AND OTHER CELLS
STIMULUS-SECRETION COUPLING - CONCEPT AND CLUES FROM CHROMAFFIN AND OTHER CELLS
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DOI:
10.1111/j.1476-5381.1968.tb08474.x
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发表时间:
1968-01-01
影响因子:
7.3
通讯作者:
DOUGLAS, WW
中科院分区:
文献类型:
--
作者:
DOUGLAS, WW
One of the main influences on John Gaddum's astonishingly fruitful career in pharmacology was his early exposure, at theNational Institute for Medical Research in Hampstead, to that borderline discipline between physiology and pharmacology that Henry Dale was to term autopharmacology. At Hampstead, and throughout his life, Gaddum's experiments were concerned mainly with pharmacologically active substances extractable from tissues. His contributions in this field are too many to list here, but I should like to remind you of a few that illustrate the main theme of his work. It was Gaddum, you will remember, who, along with US von Euler (1931), discovered substance P. It was Gaddum, too, who demonstrated, with Chang (1933), that the sympathetic chain was rich in a substance with the physiological properties of acetylcholine and who put forward the idea that" acetyl-choline might play a partin the normal transmission of impulses having in view its stimulating actions on ganglion cells." This finding inturn led him to the experiment, with Feldberg (1934), demonstrating release of acetylcholine from the stimulated superior cervical ganglion, an experiment that became the cornerstone of the concept that neurones communicate with one another by chemical means. And, of course, Gaddum was to continue throughout his life in this autopharmacological vein contributing, for example, to knowledge of the physiology and pharmacology of the transmitter substance of adrenergic nerves and other autacoids such as histamine, 5-hydroxytryptamine and bradykinin. Among his many contributions was the discovery, in 1952, of5-hydroxytryptamine within the brain (see Amin, Crawford & Gaddum, 1954). This was shortly followed by the demonstration that lysergic acid diethylamide (LSD) is a potent antagonist of 5-hydroxytryptamine and by the suggestion that LSD might owe its mental effects to interference with the normal action of 5-hydroxytryptamine (Gaddum, 1953; Amin et al., 1954). It is now evidentthat these experiments, and the conclusions drawn from them, gave powerful impetus to the study of transmitter substances within the brain and to the development of the field of psychopharmacology. In this first Gaddum Memorial Lecture it is, then, appropriate that the topic be an autopharmacological one, and the Trustees of the Gaddum Memorial Fund