. . . . . . . . . . . . "[Homozygosity for a rare allele of the functional BDNF variant was associated with a 5.3-year older onset age for Parkinson disease, suggesting that BDNF may influence PD onset age.]. Sentence from MEDLINE/PubMed, a database of the U.S. National Library of Medicine."@en . . . . . "2009-03-31"^^ . . "Gene-disease associations inferred from text-mining the literature."@en . "DisGeNET evidence - LITERATURE"@en . "2014-10-02T12:33:08+02:00"^^ . . . . . . . . . . . "v2.1.0.0" . "v2.1.0" .