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机构地区:[1]中国医科大学基础医学院生理学教研室,辽宁沈阳110001 [2]沈阳军区政治部门诊部,辽宁沈阳110013
出 处:《中国应用生理学杂志》2009年第3期377-381,共5页Chinese Journal of Applied Physiology
基 金:辽宁省教育厅高等学校科研项目(2008840)
摘 要:目的:探讨旋复代赭汤(IOD)拮抗顺铂(DDP)所致胃肠道毒性损伤的机理。方法:将健康杂种家兔24只随机分为3组(n=8):正常对照组、DDP组、IOD+DDP组,观察家兔体表胃电图(EGG)的改变和检测血清5-HT、5-HI-AA水平及胃窦粘膜层、十二指肠上段全层组织中5-HT、5-HIAA含量的变化,应用透射电镜观察各组超微结构改变。结果:DDP组静注DDP0.5h后,家兔EGG振幅的幅值增高、频率加快(P<0.05),同时血中5-HT、5-HIAA的浓度均升高(P<0.05),胃窦粘膜层、十二指肠组织中5-HT、5-HIAA的含量高于IOD+DDP组(P<0.05),同时电镜下可见严重损伤。而IOD能对抗DDP引起的损伤,EGG显示振幅幅值降低、频率减慢至正常水平,同时血中5-HT、5-HIAA浓度及组织中5-HT、5-HIAA的含量与DDP组对比显著降低。结论:旋复代赭汤能拮抗顺铂所致家兔EGG的改变,其机制可能与抑制胃肠道粘膜嗜铬细胞5-HT的分泌有关。Aim: To explore the antagonism mechanism of Inulae and Ochrae Decoction on toxicity damage of gastrointestinal tissue induced by DDP (cisplatin). Methods: Twenty-four healthy hybrid rabbits were divided into three groups in random: the control group, DDP group, Inulae and Ochrae Decoction + DDP group. The change of rabbits EGG, the concentration of 5-HT,5-HIAA of serum and the content of sinus ventriculi mucosa and the upper part of duodenum tissue were examined. Ultrastructure changes were observed by transmission electron microscope (TEM). Results: The EGG amplitude of DDP group was increased and the frequency was fast( P 〈 0.05) after iv DDP, meanwhile the concentration of 5-HT, 5-HIAA was increased( P 〈 0.05), and the content of sinus ventriculi mucosa and the upper part of duodenum tissue were higher than that of Inulae and Oehrae Decoction + DDP group( P 〈 0.05), and the change was seriously under the TEM observing; while Inulae and Ochrae Decoction could prevent the change of EGG caused by DDP, showing the amplitude decreased, and the frequency was slow, and the concentration of 5-HT, 5-HIAA of serum and the content of tissue became lower than that of DDP group. Condusion: Inulae and Ochi'ae Decoction could antagonize the change of EGG caused by DDP, which maybe have relations with the over-releasing of gastrointestinal 5- HT.
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