15 Sep 2013

New study finds link between neurons’ inability to repair DNA and neurodegeneration.

Amyotrophic lateral sclerosis (ALS) — also known as Lou Gehrig’s disease — is a neurodegenerative disease that destroys the neurons that control muscle movement. There is no cure for ALS, which kills most patients within three to five years of the onset of symptoms, and about 5,600 new cases are diagnosed in the United States each year.

MIT neuroscientists have found new evidence that suggests that a failure to repair damaged DNA could underlie not only ALS, but also other neurodegenerative disorders such as Alzheimer’s disease. These findings imply that drugs that bolster neurons’ DNA-repair capacity could help ALS patients, says Li-Huei Tsai, director of MIT’s Picower Institute for Learning and Memory and senior author of a paper describing the ALS findings in the Sept. 15 issue of Nature Neuroscience.

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