. . . . . . . "[The exact mechanism of fetal damage in maternal phenylketonuria (PKU) is uncertain and although the fetus is heterozygotic for the gene coding for phenylalanine hydroxylase its immature hepatic enzyme system may be the reason for its inability to deal adequately with transplacental phenylalanine uptake.]. Sentence from MEDLINE/PubMed, a database of the U.S. National Library of Medicine."@en . . . . . "2017-02-19"^^ . . "Gene-disease associations inferred from text-mining the literature."@en . "DisGeNET evidence - LITERATURE"@en . "2017-10-17T13:15:10+02:00"^^ . . . . . . . . . . . "v5.0.0.0" . "v5.0.0" .