Effect of α2-Adrenergic Receptor Stimulation on Isolated Rat Heart during Puberty after Hypokinesia.

IF 0.7 4区 医学 Q4 MEDICINE, RESEARCH & EXPERIMENTAL
M I Sungatullina, R I Zaripova, A M Sadykov, A L Zefirov, N I Ziyatdinova, T L Zefirov
{"title":"Effect of α<sub>2</sub>-Adrenergic Receptor Stimulation on Isolated Rat Heart during Puberty after Hypokinesia.","authors":"M I Sungatullina, R I Zaripova, A M Sadykov, A L Zefirov, N I Ziyatdinova, T L Zefirov","doi":"10.1007/s10517-026-06675-0","DOIUrl":null,"url":null,"abstract":"<p><p>We studied the effect of α<sub>2</sub>-adrenoreceptor stimulation on functional parameters of Langendorff-isolated heart from pubertal rats subjected to restriction of motor activity during the early postnatal ontogeny. Clonidine hydrochloride, an agonist of α<sub>2</sub>-adrenoreceptors, was used at concentrations of 10<sup>-9</sup>-10<sup>-6</sup> M. After restriction of motor activity, stimulation of α<sub>2</sub>-adrenoreceptors with clonidine at the studied concentrations had a positive inotropic effect. α<sub>2</sub>-Adrenoreceptor stimulation led to a dose-dependent decrease in coronary flow, and this effect was more pronounced after hypokinesia. The role of α<sub>2</sub>-adrenoreceptors in the cardiovascular system under conditions of motor restriction requires further study considering age-related features.</p>","PeriodicalId":9331,"journal":{"name":"Bulletin of Experimental Biology and Medicine","volume":" ","pages":"559-562"},"PeriodicalIF":0.7000,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Bulletin of Experimental Biology and Medicine","FirstCategoryId":"3","ListUrlMain":"https://doi.org/10.1007/s10517-026-06675-0","RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"2026/6/2 0:00:00","PubModel":"Epub","JCR":"Q4","JCRName":"MEDICINE, RESEARCH & EXPERIMENTAL","Score":null,"Total":0}
引用次数: 0

Abstract

We studied the effect of α2-adrenoreceptor stimulation on functional parameters of Langendorff-isolated heart from pubertal rats subjected to restriction of motor activity during the early postnatal ontogeny. Clonidine hydrochloride, an agonist of α2-adrenoreceptors, was used at concentrations of 10-9-10-6 M. After restriction of motor activity, stimulation of α2-adrenoreceptors with clonidine at the studied concentrations had a positive inotropic effect. α2-Adrenoreceptor stimulation led to a dose-dependent decrease in coronary flow, and this effect was more pronounced after hypokinesia. The role of α2-adrenoreceptors in the cardiovascular system under conditions of motor restriction requires further study considering age-related features.

α - 2肾上腺素能受体刺激对青春期运动不足大鼠离体心脏的影响。
研究α - 2肾上腺素受体刺激对产后早期运动活动受限青春期大鼠langendorff离体心脏功能参数的影响。盐酸可乐定是α2-肾上腺素受体的激动剂,浓度为10-9-10-6 m,在限制运动活动后,用可乐定在研究浓度下刺激α2-肾上腺素受体具有正性肌力作用。α2-肾上腺素受体刺激导致冠状动脉血流呈剂量依赖性减少,且这种影响在运动不足后更为明显。运动受限条件下α - 2肾上腺素受体在心血管系统中的作用需要考虑年龄相关特征进一步研究。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
求助全文
约1分钟内获得全文 求助全文
来源期刊
Bulletin of Experimental Biology and Medicine
Bulletin of Experimental Biology and Medicine 医学-医学:研究与实验
CiteScore
1.50
自引率
14.30%
发文量
265
审稿时长
2 months
期刊介绍: Bulletin of Experimental Biology and Medicine presents original peer reviewed research papers and brief reports on priority new research results in physiology, biochemistry, biophysics, pharmacology, immunology, microbiology, genetics, oncology, etc. Novel trends in science are covered in new sections of the journal - Biogerontology and Human Ecology - that first appeared in 2005. World scientific interest in stem cells prompted inclusion into Bulletin of Experimental Biology and Medicine a quarterly scientific journal Cell Technologies in Biology and Medicine (a new Russian Academy of Medical Sciences publication since 2005). It publishes only original papers from the leading research institutions on molecular biology of stem and progenitor cells, stem cell as the basis of gene therapy, molecular language of cell-to-cell communication, cytokines, chemokines, growth and other factors, pilot projects on clinical use of stem and progenitor cells. The Russian Volume Year is published in English from April.
×
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
确定
请完成安全验证×
copy
已复制链接
快去分享给好友吧!
我知道了
右上角分享
点击右上角分享
0
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 布克学术 All rights reserved.
京ICP备2023020795号-1
ghs 京公网安备 11010802042870号
Book学术文献互助
Book学术文献互助群
群 号:604180095
Book学术官方微信
小红书