Cardiovascular and Adenylate Cyclase Stimulating Effects of Colforsin Daropate, a Water-Soluble Forskolin Derivative, Compared With Those of Isoproterenol, Dopamine and Dobutamine
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概要
- 論文の詳細を見る
Colforsin daropate is a recently developed water-soluble derivative of forskolin that directly stimulates adenylate cyclase, unlike the catecholamines. The chronotropic, inotropic and coronary vasodilator actions of colforsin daropate were compared with those of isoproterenol, dopamine and dobutamine, using canine isolated, blood-perfused heart preparations. The stimulating effect of each drug on adenylate cyclase activity was also assessed. Colforsin daropate, as well as each of the catecholamines, exerted positive chronotropic, inotropic and coronary vasodilator actions. The order of selectivity for the cardiovascular variables of colforsin daropate was coronary vasodilation >> positive inotropy > positive chronotropy; whereas that of isoproterenol, dopamine and dobutamine was positive inotropy >> coronary vasodilation > positive chronotropy. Thus, a marked characteristic of colforsin daropate is its potent coronary vasodilator action. On the other hand, each drug significantly increased the adenylate cyclase activity in a dose-related manner: colforsin daropate >> isoproterenol > dopamine = dobutamine. These results suggest that colforsin daropate may be preferable in the treatment of severe heart failure where the coronary blood flow is reduced and ★-adrenoceptor-dependent signal transduction pathway is down-regulated.
- 社団法人日本循環器学会の論文
- 2002-11-20
著者
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HASHIMOTO Keitaro
Department of Pharmacology, Interdisciplinary Graduate School of Medicine and Engineering, Universit
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Sugiyama Atsushi
Department of Pharmacology, School of Medicine, Toho University, Japan
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Nakamura Yuji
Department of Pharmacology, School of Medicine, Toho University, Japan
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Nakamura Yuji
Department Of Pharmacology Interdisciplinary Graduate School Of Medicine And Engineering University
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Satoh Y
Department Of Pharmacology Interdisciplinary Graduate School Of Medicine And Engineering University
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Takahara Akira
Department of Pharmacology, Faculty of Pharmaceutical Sciences, Toho University
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Satoh Yoshioki
Department of Pharmacology, Yamanashi Medical University
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Satoh Yoshioki
Department Of Pharmacology Interdisciplinary Graduate School Of Medicine And Engineering University
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Takahara Akira
Department Of Internal Medicine National Kawatana Hospital
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Sugiyama Atsushi
Department Of Pharmacology Yamanashi Medical University
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Sugiyama A
Department Of Pharmacology Yamanashi Medical University
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Yoneyama Masahiko
Department of Pharmacology, Yamanashi Medical University
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Nakamura Yuji
Department Of Materials Engineering Graduate School Of Engineering The University Of Tokyo:crest Jap
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Yoneyama Masahiko
Department Of Pharmacology Yamanashi Medical University
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Hashimoto Keitaro
Department Of Pharmacology Interdisciplinary Graduate School Of Medicine And Engineering University
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Hashimoto Keitaro
Department Of Pharmacology Interdisciplinary Graduate School Of Medicine And Engineering University
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Nakamura Yuji
Department Of Anesthesiology Shimane Medical University
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Sugiyama Atsushi
Department Of Pharmacology. University Of Yamanashi Yamanashi Research Center Of Cliniacl Pharmacolo
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Sugiyama Atsushi
Department Of Chemistry College Of Science Rikkyo University
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Nakamura Yuji
Department Of Agricultural Chemistry Faculty Of Agriculture Kyushu University
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Aikawa Tokiko
Department Of Pharmacology Toho University Faculty Of Pharmaceutical Sciences
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Sugiyama Atsushi
Department Of Pharmacology School Of Medicine Toho University
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HASHIMOTO Keitaro
Department of Pharmacology, Interdisciplinary Graduate School of Medicine and Engineering, University of Yamanashi
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HASHIMOTO Keitaro
Department of Phamacology, Yamanashi Medical University
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Sugiyama Atsushi
Department of Biotechnology, Faculty of Engineering, Kansai University
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Takahara Akira
Department of Clinical Pharmacy, Faculty of Pharmaceutical Sciences, Toho University
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