Antihypertensive Actions of Methylripariochromene A from Orthosiphon aristatus, an Indonesian Traditional Medicinal Plant

スポンサーリンク

概要

論文の詳細を見る
Methylripariochromene A (MRC) was isolated from the leaves of Orthosiphon aristatus (Lamiaceae) and subjected to the examination of several pharmacological actions related to antihypertensive activity. The following four findings were revealed from the present study : 1) MRC caused a continuous decrease in systolic blood pressure and a decrease in heart rate after subcutaneous administration in conscious male SHRSP, 2) MRC exhibited the concentration-dependent suppression of contractions induced by high K^+, l-phenylephrine or prostaglandin F_<2α> in endothelium-denuded rat thoracic aorta, 3) MRC showed a marked suppression of contractile force without a significant reduction in the beating rate in isolated bilateral guinea pig atria, and 4) MRC increased urinary volume and the excretion of Na^+, K^+ and Cl^- for 3 h after oral administration with a load of saline in fasted rats. These findings indicate that MRC possesses some actions related to a decrease in blood pressure, i.e. vasodilating action, a decrease in cardiac output and diuretic action. Furthermore, it is presumed that the traditional use of this plant in the therapy of hypertension may be partially supported by these actions with MRC.
公益社団法人日本薬学会の論文
1999-10-15

著者

関連論文

もっと見る

スポンサーリンク