“这篇新论文最让人震惊和困惑的是……(大脑活动)就是你所认为的能让你保持正常认知的事物。而你希望在日后的生活中保持大脑活跃,”利伯尔大脑发育研究所神经学家迈克尔·麦康奈尔说道,他并没有参与这项研究。
"The thing that is super unexpected is ... limiting neural activity is a good thing in healthy aging. It's very counterintuitive."
“非常令人意外的是……有限的神经活动有利于健康地衰老,但它却是违反常理的。”
Researchers at Harvard Medical School analyzed brain tissue donated to human brain banks by people ranging in age from their 60s and 70s to centenarians who lived to be 100 or older.
哈佛大学医学院的研究人员分析了60多岁、70多岁到100多岁的老人捐献给人类大脑库的脑组织。
They found people who died before their mid-80s had lower levels in their brains of a protein called REST that tamps down genes involved in sparking brain activity, compared to the very oldest people. REST had already been shown to be protective against Alzheimer's disease.
他们发现,与特别长寿的人相比,那些85岁之前就去世的人,他们大脑中名为REST的蛋白质含量较低,这种蛋白质能抑制激发大脑活动的基因,而REST已被证明可以预防老年痴呆症。
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