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A comparative study of the effect of berberine and its 9-substituted compounds (I, R=OH ; II, berberine, R=OCH3 ; III, R=OC4H9 ; IV, R=OC5H11 ; V, R=OC8H17 ; VI, R=OC12H25) on blood pressure of rats showed that substitution of OC4H9 or OC5H11 for OCH3 of berberine prolonged the transient hypotensive activity of berberine, whereas substitution by OH caused a slight hypertension. The dose of III or IV, which caused hypotension, was found to inhibit cardiac function in rats, whereas II had no effect on it. II, III, and IV decreased the beating rate in isolated perfused toad heart. Only II was found to have acetylcholine-potentiating action in frog muscle as well as guinea-pig small intestine in vitro. In the same preparations III and IV, contrariwise, inhibited acetylcholine action. In spinal rats, any response in blood pressure was not observed after the injection of each of the test compounds. From these results, possible mechanism of action of the test compounds is discussed.
収録刊行物
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- CHEMICAL & PHARMACEUTICAL BULLETIN
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CHEMICAL & PHARMACEUTICAL BULLETIN 18 (7), 1299-1304, 1970
公益社団法人 日本薬学会
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詳細情報 詳細情報について
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- CRID
- 1390001204172414080
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- NII論文ID
- 110003654612
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- NII書誌ID
- AA00602100
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- ISSN
- 13475223
- 00092363
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- PubMed
- 5453973
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- 本文言語コード
- en
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- データソース種別
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- JaLC
- Crossref
- PubMed
- CiNii Articles
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- 抄録ライセンスフラグ
- 使用不可