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尼莫地平对Ca~(2+)和某些介质致豚鼠气管平滑肌收缩的抑制作用
引用本文:白春学,方晓惠,钮善福,吴淦桐. 尼莫地平对Ca~(2+)和某些介质致豚鼠气管平滑肌收缩的抑制作用[J]. 中国药理学与毒理学杂志, 1995, 0(2)
作者姓名:白春学  方晓惠  钮善福  吴淦桐
作者单位:上海医科大学中山临床医学院肺病学教研室,基础医学院药理教研室
摘    要:尼莫地平对Ca ̄(2+)和某些介质致豚鼠气管平滑肌收缩的抑制作用白春学,方晓惠,钮善福,吴淦桐(上海医科大学中山临床医学院肺病学教研室,基础医学院药理教研室,上海200032)钙通道阻滞剂对支气管的扩张作用已有不少报道[1],但尚无涉及尼莫地平(Ni...

关 键 词:钙通道阻滞剂;尼莫地平;氯化钙;组胺;前列腺素类;乙酰胆碱;气管;肌,平滑

Inhibitory effects of nimodipine on contraction of isolated tracheal strlps of guinea pig induced by Ca2 and some mediators
BAI Chun-Xue,FANG Xiao-Hui, NIU Shan-Fu,WU Gang-Tong,. Inhibitory effects of nimodipine on contraction of isolated tracheal strlps of guinea pig induced by Ca2 and some mediators[J]. Chinese Journal of Pharmacology and Toxicology, 1995, 0(2)
Authors:BAI Chun-Xue  FANG Xiao-Hui   NIU Shan-Fu  WU Gang-Tong  
Abstract:The effects of nimodipine(Nim)against contraction of tracheal strips of gtiinea pig in-duced by Ca2+and some mediators was studied invitro. CaCl2 and histamine(His) caused significantcumulative concentration effect relationship withpD2 values of 3.58 and 5.68 After being incubatedwith Nim 0.1 -10μmol·L-1 for 20 min,the responseselicited by CaCl2 and His were depressed and pD2 val-ues were 2.81 and 6.67 respectively . Cumulative concen-tration of Nim resulted in concentration dependent re-laxing effects on contraction of tracheal strips inducedby acetylcholine 10 μmol·L-1 and prostaglandinF2α 5 mmol·L-1 with IC50 values of 0.788 and 0.81μmol·L-1.The results indicates that Nim has a signifi-cant effect on bronch0dudtion.
Keywords:calcium channel blockers  nimodipine calcium chlorde  histamine  prostagl-andins:acetv1choline:trachea: muscle  smooth  
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