著者
北川 晴雄 鎌滝 哲也
出版者
一般社団法人 日本臨床薬理学会
雑誌
臨床薬理 (ISSN:03881601)
巻号頁・発行日
vol.2, no.3, pp.266-281, 1971-07-30 (Released:2010-06-28)
参考文献数
114
被引用文献数
1 1
著者
武永 美津子 平井 愛山 寺野 隆 田村 泰 北川 晴雄 吉田 尚
出版者
一般社団法人 日本動脈硬化学会
雑誌
動脈硬化 (ISSN:03862682)
巻号頁・発行日
vol.13, no.4, pp.825-829, 1985-10-01 (Released:2011-09-21)
参考文献数
15
被引用文献数
1

Arachidonic acid (AA) is well known to be metabolized to thromboxane (TX) A2, 12-hydroxyheptadecatrienoic acid (HHT) and 12-hydroxyeicosatetraenoic acid (12-HETE) in platelets. Prostaglandin endoperoxides and TXA2 are known to be potent aggregating agents. On the otherr hand, the labile 12-lipoxygenase metabolite, 12-hydroperoxyeicosatetraenoic acid (12-HPETE) has been reported to have a rather anti-aggregating action.It has been reported that eicosapentaenoic acid (EPA) has a potent inhibitory effect on platelet aggregation. TXA3 produced from EPA is nonaggregating agent. Although major metabolites of EPA in platelets is said to be those of 12-lipoxygenase pathway, the effect of them has not been clearly elucidated yet. So, we examined the effect of 12-lipoxygenase metabolites of EPA on platelet function and compared them with those of AA.Both of the labile 12-lipoxygenase metabolites, 12-HPETE and 12-hydroperoxyeicosapentaenoic acid (12-HPEPE) suppressed dose-dependently platelet aggregation and release of 5-hydroxytryptamine (5-HT) induced by collagen and AA, while 12-HETE and 12-hydroxyeicosapentaenoic acid (12-HEPE) had no such effects. The inhibitory effects of these 12-hydroperoxy compounds on platelet aggregation and release reaction seem to be almost equipotent. However, 5- and 15-hydroperoxy isomers were less potent in inhibiting aggregation.These results may indicate that 12-HPETE and 12-HPEPE have a potent anti-aggregatory activity and may play a role in regulating platelet aggregability.
著者
北川 晴雄 三川 潮 長谷川 善一 山本 章
出版者
公益社団法人日本薬学会
雑誌
ファルマシア (ISSN:00148601)
巻号頁・発行日
vol.18, no.7, pp.597-603, 1982-07-01

留学という言葉は, これまで欧米諸国へ勉強に出かけることを意味した.しかし日本の学問的・経済的地位の向上にともない, 多くの留学生が日本で学生生活を送るようになってきた.日本に来る留学生を公私ともにお世話し, 彼らの留学効果を上げてもらうのも重要な国際協力である.留学生の現状, 問題点を語ってもらい, 一層成果をあげるための提言を出して載いた.