highly significantP =5.5 × 10 −43
Using various carbohydrate-deficient transferrin indices, and adjusting for alcohol intake, a recent GWAS isolated the highly significant independent effects of variants in the transferrin ( TF , P =5.5 × 10 −43 ), and phosphoglucomutase 1 ( PGM1 , P =2 × 10 −9 ) genes on carbohydrate-deficient transferrin. 126 Neuroimaging phenotypes Neuroimaging outcomes are promising new endophenotypes for addiction.