But at age 21 he developed the first symptoms of amyotrophic lateral sclerosis (ALS), a disorder that would inevitably render him paralyzed and incapable of performing most kinds of work.

可是他在21岁的时候，出现了肌萎缩性（脊髓）侧索硬化的征兆；这一疾病不可避免地要导致瘫痪，使他很多事都不能做。

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For around a decade, scientists have been trying to regrow nerve cells lost in neurodegenerative diseases such as Parkinson's, Alzheimer's and amyotrophic lateral sclerosis (ALS) from stem cells.

大约十年间，科学家们一直尝试利用干细胞使神经退变性疾病中的神经细胞再生，例如帕金森病，阿尔茨默病和肌萎缩侧索硬化。

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They could also aid in the basic research of diseases such as epilepsy and the amyotrophic lateral sclerosis (als).

星形胶质细胞在癫痫和肌肉侧索硬化症(ALS)的基础研究中同样有帮助。

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