A SNP in ELOVL7, a member of the elongase family that plays a role in the elongation of acyl-CoA with a C18 carbon chain length [27], has been associated with PD in a meta-analysis of GWAS results from over 20,000 PD cases and almost 400,000 controls of European ancestry [28], and to early-, but not late-onset PD in a GWAS on a Chinese population [29]. The gene discussed is ELOVL7; the disease is Parkinson disease.