The wisdom of youth
青春的智慧
Could newborn neurons reverse Alzheimer’s?
新生神经元能逆转阿尔茨海默症吗？
- reverse 颠倒；彻底转变；使完全相反
Some scientists think so. Others doubt the cells even exist
有科学家认为可以。也有人怀疑这种细胞根本不存在
ONE OF THE first signs of Alzheimer’s disease is confusion. Most people can park their car in a different space every morning and find it again in the evening. Those with Alzheimer’s find this type of problem much harder. Memories of things they do often, like eating or taking medication, become tangled in their minds.
阿尔茨海默症的初期症状之一是思维混乱。大多数人可以每天早上把车停在不同地点，晚上又能找到。而阿尔茨海默症患者却很难做到。一些日常活动的记忆，比如吃饭或服药，会在他们的大脑中乱作一团。
- tangle 使缠结；纠结；乱作一团
The ability to distinguish between similar memories depends on a tiny strip of brain tissue called the dentate gyrus. Studies in mice have shown that the dentate gyrus is one of the few bits of the brain to generate new neurons even in adulthood. Those new neurons are thought to help keep similar memories distinct.
区分相似记忆的能力取决于一小块称为齿状回的脑组织。对小鼠的研究表明，齿状回是大脑中少数几个即使在成年期也会生长出新神经元的部位之一。据信这些新神经元有助于区分相似的记忆。
- dentate gyrus 齿状回（齿状回系海马结构的一部分。是一窄条灰质，其内侧缘有横沟分隔成锯齿状。此回位于海马伞与海马回之间，其后端与海马伞分离移行于束状回，其前端到海马回沟的凹口处，呈锐角弯向内，横过海马回沟的下面，称此横带为齿状回尾，此横带把海马回沟分为前后两部：前部叫沟回，后部叫内边缘回）
