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不同受体阻断剂对组胺抑制和促进孤束核自发放电的影响
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Publication date
1 January 1991
Publisher
Editorial Office of Journal of Sun Yat-sen University
Abstract
第三脑室注射小剂量组胺对大鼠孤束核自发放电主要起抑制作用,较大剂量则起兴奋作用。第三脑室注射H2受体阻断剂西米替丁不能阻断这种抑制作用和兴奋作用。而静脉注射H1受体阻断剂苯海拉明可以完全阻断这种抑制作用及部分阻断兴奋作用。第三脑室注射纳洛酮也可以完全取消组胺的抑制作用。结果提示,第三脑室注射组胺对孤束核自发放电的抑制作用可能与中枢H2受体无关,而与H1受体及阿片受体有关;兴奋作用可能与H2受体无关,而H1受体可能参与作用,但不是主要作用
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Last time updated on 15/10/2024