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标题：Effects on Blood Pressure Decrease in Response to PAF of Impatiens textori MIQ.
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作者：Yoshimi Ueda ; Hisae Oku ; Munekazu Iinuma 等
期刊名称：Biological and Pharmaceutical Bulletin
印刷版ISSN：0918-6158
电子版ISSN：1347-5215
出版年度：2003
卷号：26
期号：10
页码：1505-1507
DOI：10.1248/bpb.26.1505
出版社：The Pharmaceutical Society of Japan
摘要：A 35% EtOH extract of flowers of Impatiens textori M IQ . showed an inhibitory effect on blood pressure decrease in response to platelet activating factor (PAF) measured with a blood pressure monitoring system. Bioassay-guided fractionation of the 35% EtOH extract (IT) led to isolation of the flavones apigenin (1) and luteolin (3), which significantly inhibited blood pressure decrease in response to PAF. Their compounds and apigenin 7-glucoside (2), chrysoeriol (4), quercetin (5), quercetin 3-glucoside (6), kaempferol (7), kaempferol 3-glucoside (8) and kaempferol 3-rhamnosyldiglucoside (9) were also isolated from the flowers of I. textori for the first time. This study revealed that the flowers of I. textori might be a possible anti-allergy agent.
关键词：Impatiens textori;anti-platelet activating factor effect;apigenin;luteolin;blood pressure monitoring;anti-allergy agent