Steve Younkin and colleagues report the results of a genome-wide association study for late-onset Alzheimer's disease. A variant on the X chromosome in PCDH11X is associated with increased risk of the disorder. PCDH11X encodes a protocadherin and is a member of a cell surface receptor molecule family.
- Minerva M Carrasquillo
- Fanggeng Zou
- Steven G Younkin