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（东京10日综合电）“记忆回复药”听起来就像是卡通片中出现的法宝，但日本的科研团队近日发现这样的神奇药物。来自东京大学及北海道大学等的团队周二（8日）发表报告，指出用以治疗耳水不平衡的头晕药，有提升记忆力的疗效，未来有望应用在治疗认知障碍症之上。

团队针对38名20多岁的男女进行实验，让他们观看约100张照片，并在一周后就照片提问。结果发现，在实验开始30分钟前服用了平常剂量约10倍的头晕药的人，答对率高达50%；而没有服药的一组答对率仅得25%，相差足有一倍。

实验对象所服用的头晕药，其实是用作治疗俗称“耳水不平衡”的美尼尔氏症中、降耳压的成分“甲磺酸倍他司汀”。该成分可令大脑分泌出组织胺，重新加强传递力变弱的记忆信号。

东京大学药理学教授池谷裕二指出，实验显示即使一些事情当下想不起来，记忆实际上仍存于脑内。他表示︰“了解到恢复记忆力的机制之后，将可继续开发更有效的药物，或能改善认知障碍症病人的生活。”

甲磺酸倍他司汀有机会引起加剧敏感和胃溃疡等副作用，但即使服用处方剂量的10倍，仍属安全范围。不过，服用时仍应依照医生指示，以策万全。是次报告已刊登于美国科学期刊《生物精神医学》。

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