STUDIES ON THE MODE OF ANTAGONISM BETWEEN ADRENERGIC β-MIMETICS AND β-BLOCKING AGENTS (IV) INFLUENCE OF FUNCTIONAL ANTAGONISM BY SPASMOGENS

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概要

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• A new theory is presented to describe the effect of functional antagonism on the competitive antagonism between adrenergic β-mimetics and β-blockers. According to this theory the shape of the log (dose ratio-1) vs. -log [B] curve and the apparent pA<SUB>2</SUB> value in competitive antagonism should be affected by functional antagonism when the agonist is taken up by the saturable uptake process, and this was experimentally confirmed. The competitive antagonism between isoproterenol (ISO) and propranolol (Prop) was influenced by the functional antagonism between ISO and spasmogens (histamine and carbachol). The log (dose ratio-1) vs. -log [B] curve of ISO-Prop competitive antagonism was shifted variously depending on the concentration of a spasmogen used. Theoretical predictions and experimental results were in good parallel.

• 社団法人 日本薬理学会の論文

著者

• OHASHI Motoaki

  Pharmacological Research Laboratory Tanabe Seiyaku Co., Ltd.

関連論文

• STUDIES ON THE MODE OF ANTAGONISM BETWEEN ADRENERGIC β-MIMETICS AND β-BLOCKING AGENTS (IV) INFLUENCE OF FUNCTIONAL ANTAGONISM BY SPASMOGENS
• STUDIES ON THE MODE OF ANTAGONISM BETWEEN ADRENERGIC β-MIMETICS AND β-BLOCKING AGENTS (III) FUNCTIONAL ANTAGONISM BETWEEN β-MIMETICS AND SPASMOGENS
• STUDIES ON THE MODE OF ANTAGONISM BETWEEN ADRENERGIC β-MIMETICS AND β-BLOCKING AGENTS (II) : ANALYSIS BY THE UPTAKE SATURATION MODEL
• STUDIES ON MODE OF ANTAGONISM BETWEEN ADRENERGIC β-MIMETICS AND β-BLOCKING AGENTS (I). β-BLOCKING ACTION OF MESCALINE AND ITS DERIVATIVES
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