甲磺酸去铁胺对抗庆大霉素耳毒性的实验研究

Study of Deferoxamine Protection Against Gentamicin Ototoxicity

陈阳;王锦玲;黄维国;乔莉;刘顺利;稽宪生

1:第四军医大学西京医院耳鼻咽喉科

摘要
目的观察铁螯合剂———甲磺酸去铁胺(deferoxaminemesylate,DFO)对抗庆大霉素(gentamicin,GM)耳毒性的作用。方法将豚鼠随机分为GM组、DFO组、GM+DFO组及对照组,采用听性脑干反应(ABR)、耳蜗铺片及透射电镜技术,观察用药前后听阈及形态学改变,并检测DFO对庆大霉素血药浓度的影响。结果GM组8kHzABR阈值逐渐升高40~60dB;GM+DFO组阈移为15~25dB,差异显著(P<0.05)。高频听阈损伤明显比低频更重(P<0.01)。形态学变化与听力变化平行。DFO对庆大霉素血药浓度没有影响。结论证实DFO能有效减轻GM的耳毒性作用,DFO可能成为预防庆大霉素耳毒性的有效药物。
关键词
庆大霉素;耳毒性;去铁胺;预防
基金项目(Foundation):
作者
陈阳;王锦玲;黄维国;乔莉;刘顺利;稽宪生
参考文献

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