{"title":"[去卵巢小鼠脑缺血/再灌注后海马CA1中ET-3的表达]。","authors":"Zhi-jun Zhang, Zheng-qing Liu, Zhi-jian Ma","doi":"","DOIUrl":null,"url":null,"abstract":"<p><strong>Objective: </strong>To detect the expression of endothelins-3 (ET-3) immunoactivity in hippocampal CA1 of ovariectomied (OVX) mice after ischemia/reperfusion (IR), and to further explore the relationship between estrogen and ET-3.</p><p><strong>Methods: </strong>Fifty-four adult female mice were randomly divided into 3 groups. 1. IR group: the bilateral common carotid occlusion (BCCO) was carried out for 7 min on the 1st, 3rd, 5th and 14th day of reperfusion. 2. OVX/IR group: firstly the ovariectomy was performed, and after a week, BCCO was carried out for 7 min on the 1st, 3rd, 5th and 14th day of reperfusion (each time spot, n = 6). 3. sham-operated group (n = 6).</p><p><strong>Results: </strong>Few ET-3 positive cells were diffusely distributed in the hippocampal CA1 region in the control group, whereas the expression of ET-3 increased in the experimental groups. The number of ET-3 positive cells significantly increased in the OVX/IR group compared with that of the IR group 1 d after the reperfusion (P < 0.01). It reached the maximum in both the OVX/IR and IR group on the 5th day of the reperfusion.</p><p><strong>Conclusion: </strong>Estrogen is involved in the regulation of ET-3 in the early stage of the reperfusion, and probably plays a protective role in the survival of neurons.</p>","PeriodicalId":13115,"journal":{"name":"Hunan yi ke da xue xue bao = Hunan yike daxue xuebao = Bulletin of Hunan Medical University","volume":"28 4","pages":"371-4"},"PeriodicalIF":0.0000,"publicationDate":"2003-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"[Expression of ET-3 in hippocampal CA1 of ovariectomied mice after cerebral ischemia/reperfusion].\",\"authors\":\"Zhi-jun Zhang, Zheng-qing Liu, Zhi-jian Ma\",\"doi\":\"\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<p><strong>Objective: </strong>To detect the expression of endothelins-3 (ET-3) immunoactivity in hippocampal CA1 of ovariectomied (OVX) mice after ischemia/reperfusion (IR), and to further explore the relationship between estrogen and ET-3.</p><p><strong>Methods: </strong>Fifty-four adult female mice were randomly divided into 3 groups. 1. IR group: the bilateral common carotid occlusion (BCCO) was carried out for 7 min on the 1st, 3rd, 5th and 14th day of reperfusion. 2. OVX/IR group: firstly the ovariectomy was performed, and after a week, BCCO was carried out for 7 min on the 1st, 3rd, 5th and 14th day of reperfusion (each time spot, n = 6). 3. sham-operated group (n = 6).</p><p><strong>Results: </strong>Few ET-3 positive cells were diffusely distributed in the hippocampal CA1 region in the control group, whereas the expression of ET-3 increased in the experimental groups. The number of ET-3 positive cells significantly increased in the OVX/IR group compared with that of the IR group 1 d after the reperfusion (P < 0.01). It reached the maximum in both the OVX/IR and IR group on the 5th day of the reperfusion.</p><p><strong>Conclusion: </strong>Estrogen is involved in the regulation of ET-3 in the early stage of the reperfusion, and probably plays a protective role in the survival of neurons.</p>\",\"PeriodicalId\":13115,\"journal\":{\"name\":\"Hunan yi ke da xue xue bao = Hunan yike daxue xuebao = Bulletin of Hunan Medical University\",\"volume\":\"28 4\",\"pages\":\"371-4\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2003-08-01\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Hunan yi ke da xue xue bao = Hunan yike daxue xuebao = Bulletin of Hunan Medical University\",\"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":"Hunan yi ke da xue xue bao = Hunan yike daxue xuebao = Bulletin of Hunan Medical University","FirstCategoryId":"1085","ListUrlMain":"","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
[Expression of ET-3 in hippocampal CA1 of ovariectomied mice after cerebral ischemia/reperfusion].
Objective: To detect the expression of endothelins-3 (ET-3) immunoactivity in hippocampal CA1 of ovariectomied (OVX) mice after ischemia/reperfusion (IR), and to further explore the relationship between estrogen and ET-3.
Methods: Fifty-four adult female mice were randomly divided into 3 groups. 1. IR group: the bilateral common carotid occlusion (BCCO) was carried out for 7 min on the 1st, 3rd, 5th and 14th day of reperfusion. 2. OVX/IR group: firstly the ovariectomy was performed, and after a week, BCCO was carried out for 7 min on the 1st, 3rd, 5th and 14th day of reperfusion (each time spot, n = 6). 3. sham-operated group (n = 6).
Results: Few ET-3 positive cells were diffusely distributed in the hippocampal CA1 region in the control group, whereas the expression of ET-3 increased in the experimental groups. The number of ET-3 positive cells significantly increased in the OVX/IR group compared with that of the IR group 1 d after the reperfusion (P < 0.01). It reached the maximum in both the OVX/IR and IR group on the 5th day of the reperfusion.
Conclusion: Estrogen is involved in the regulation of ET-3 in the early stage of the reperfusion, and probably plays a protective role in the survival of neurons.
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