Otol Neurotol:顺铂诱导听力损失的COOL疗法

2021-01-03 AlexYang MedSci原创

外耳局部降温对顺铂引起的听力损失的易感性有保护作用。之前,有研究人员曾证明使用凉水耳道灌洗对顺铂诱导的听力损失有显著的保护作用。然而,该研究仅限于单次注射顺铂和急性期。最近,他们调查了在更长的时间段内

外耳局部降温对顺铂引起的听力损失的易感性有保护作用。之前,有研究人员曾证明使用凉水耳道灌洗对顺铂诱导的听力损失有显著的保护作用。然而,该研究仅限于单次注射顺铂和急性期。最近,他们调查了在更长的时间段内,使用两种冷却方法对耳道进行局部冷却,并反复注射顺铂的相关听力情况。

研究包括了24只豚鼠(12只雄性和12只雌性),并在顺铂给药前/后进行了听觉生理测试(8-32kHz时的听觉脑干反应和畸变产物耳声发射)。顺铂(4 mg/kg i.p.)分3次注射,每周一次,共12 mg/kg。当麻醉后,豚鼠的左耳暴露于凉水(22℃)、凉耳棒(15℃),或未冷却的作为sham对照。在每个剂量3天后和最后1次剂量1个月后对动物进行测试。在实验结束时,动物被安乐死并进行组织学评价。研究结果表明,与只使用顺铂的对照动物相比,接受冷处理动物的听力损失显著减少,毛细胞的存活率大大提高。另外,两种冷却方法之间没有显著差异。

外毛细胞损失比例成对比较

最后,研究人员指出,在使用顺铂期间对耳道进行局部降温可减轻听觉功能的损失和毛细胞的损失

原始出处:

James K Stanford, Drew S Morgan, Nicholas A Bosworth et al. Cool OtOprotective Ear Lumen (COOL) Therapy for Cisplatin-induced Hearing Loss. Otol Neurotol. Dec 2020

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    2021-01-05 ysjykql
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    2021-01-04 12346c4dm64暂无昵称

    现在化疗药对比起来副作用太大了

    0

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