[心脏选择性-肾上腺素阻滞剂作用中的中枢和外周成分]。

Farmakologiia i toksikologiia Pub Date : 1991-05-01
O S Medvedev, O A Tiurmina
{"title":"[心脏选择性-肾上腺素阻滞剂作用中的中枢和外周成分]。","authors":"O S Medvedev,&nbsp;O A Tiurmina","doi":"","DOIUrl":null,"url":null,"abstract":"<p><p>The effects of two cardioselective beta-blockers metoprolol and atenolol (2 mg/kg, intravenously) on the activity of the sympathetic renal nerve as well as the sensitivity of the chronotropic and sympathetic components of the baroreceptor reflex tested by using phenylephrine or sodium nitroprusside. In the experiments on conscious Wistar rats only the more lipophilic agent metoprolol significantly decreased the baseline level of the activity of the sympathetic nerve by 15%. The sensitivity of the chronotropic baroreceptor reflex elicited by a decrease of arterial blood pressure with sodium nitroprusside was reduced significantly both by metoprolol and atenolol. The tendency towards a decrease of the sensitivity of the chronotropic reflex elicited by phenylephrine-induced elevation of blood pressure was noted. The baroreflectory modification of the sympathetic activity did not change significantly under the influence of metoprolol and atenolol. The presence of the central component of action (of metoprolol) and the peripheral component (of the studied beta-blockers) is concluded.</p>","PeriodicalId":12237,"journal":{"name":"Farmakologiia i toksikologiia","volume":null,"pages":null},"PeriodicalIF":0.0000,"publicationDate":"1991-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"[The central and peripheral components in the action of cardioselective beta-adrenoblockaders].\",\"authors\":\"O S Medvedev,&nbsp;O A Tiurmina\",\"doi\":\"\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<p><p>The effects of two cardioselective beta-blockers metoprolol and atenolol (2 mg/kg, intravenously) on the activity of the sympathetic renal nerve as well as the sensitivity of the chronotropic and sympathetic components of the baroreceptor reflex tested by using phenylephrine or sodium nitroprusside. In the experiments on conscious Wistar rats only the more lipophilic agent metoprolol significantly decreased the baseline level of the activity of the sympathetic nerve by 15%. The sensitivity of the chronotropic baroreceptor reflex elicited by a decrease of arterial blood pressure with sodium nitroprusside was reduced significantly both by metoprolol and atenolol. The tendency towards a decrease of the sensitivity of the chronotropic reflex elicited by phenylephrine-induced elevation of blood pressure was noted. The baroreflectory modification of the sympathetic activity did not change significantly under the influence of metoprolol and atenolol. The presence of the central component of action (of metoprolol) and the peripheral component (of the studied beta-blockers) is concluded.</p>\",\"PeriodicalId\":12237,\"journal\":{\"name\":\"Farmakologiia i toksikologiia\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":0.0000,\"publicationDate\":\"1991-05-01\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Farmakologiia i toksikologiia\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Farmakologiia i toksikologiia","FirstCategoryId":"1085","ListUrlMain":"","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 0

摘要

两种心脏选择性β受体阻滞剂美托洛尔和阿替洛尔(2mg /kg,静脉注射)对交感肾神经活性的影响,以及使用苯肾上腺素或硝普钠测试压力感受器反射的变时性和交感成分的敏感性。在有意识的Wistar大鼠的实验中,只有亲脂性更强的美托洛尔能显著降低交感神经活动的基线水平15%。硝普钠降低动脉血压引起的变时压力感受器反射的敏感性,美托洛尔和阿替洛尔均显著降低。注意到由苯肾上腺素引起的血压升高引起的变时反射的敏感性降低的趋势。在美托洛尔和阿替洛尔的影响下,交感神经活动的反射性改变无明显变化。结论是作用的中心成分(美托洛尔)和外周成分(研究的-受体阻滞剂)的存在。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
分享 分享
微信好友 朋友圈 QQ好友 复制链接
本刊更多论文
[The central and peripheral components in the action of cardioselective beta-adrenoblockaders].

The effects of two cardioselective beta-blockers metoprolol and atenolol (2 mg/kg, intravenously) on the activity of the sympathetic renal nerve as well as the sensitivity of the chronotropic and sympathetic components of the baroreceptor reflex tested by using phenylephrine or sodium nitroprusside. In the experiments on conscious Wistar rats only the more lipophilic agent metoprolol significantly decreased the baseline level of the activity of the sympathetic nerve by 15%. The sensitivity of the chronotropic baroreceptor reflex elicited by a decrease of arterial blood pressure with sodium nitroprusside was reduced significantly both by metoprolol and atenolol. The tendency towards a decrease of the sensitivity of the chronotropic reflex elicited by phenylephrine-induced elevation of blood pressure was noted. The baroreflectory modification of the sympathetic activity did not change significantly under the influence of metoprolol and atenolol. The presence of the central component of action (of metoprolol) and the peripheral component (of the studied beta-blockers) is concluded.

求助全文
通过发布文献求助,成功后即可免费获取论文全文。 去求助
来源期刊
自引率
0.00%
发文量
0
期刊最新文献
[An analysis of the age-related characteristics of the analgesic action of clofelin]. [Neuroendocrine and immunological interactions in chronic alcoholism]. [The history of the Department of Pharmacology of the Kiev Medical Institute]. [The genetically determined polymorphism of metabolic oxidation of the sparteine-debrisoquin type]. [Nuclear magnetic resonance in pharmacology].
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
×
提示
您的信息不完整,为了账户安全,请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
现在去查看 取消
×
提示
确定
0
微信
客服QQ
Book学术公众号 扫码关注我们
反馈
×
意见反馈
请填写您的意见或建议
请填写您的手机或邮箱
已复制链接
已复制链接
快去分享给好友吧!
我知道了
×
扫码分享
扫码分享
Book学术官方微信
Book学术文献互助
Book学术文献互助群
群 号:481959085
Book学术
文献互助 智能选刊 最新文献 互助须知 联系我们:info@booksci.cn
Book学术提供免费学术资源搜索服务,方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。
Copyright © 2023 Book学术 All rights reserved.
ghs 京公网安备 11010802042870号 京ICP备2023020795号-1