parkinsons disease

This casual aside on a recent post on personal genomics company 23andMe's corporate blog caught my eye: Mutations in several other genes have also been associated with Parkinson's disease, but these are extremely rare. Many have been found only in one or two families. While these mutations are so rare that they are not covered by 23andMe (to date we have found no customers with any of them), studying them could help scientists better understand the mechanisms of Parkinson's generally... [my emphasis] In other words, the company already has probes on its custom chip targeting these variants,…