Fig 1. Graph shows hepatic encephalopathy grading and occipital white matter Glx/Cr in mean values; whiskers show SD. White matter Glx of alcoholics, graded mHE, HE 1, and HE 2 and white matter Glx of nonalcoholics with overt hepatic encephalopathy (HEO) are elevated, compared with that of controls (Co) (P < 0.05; Mann-Whitney U test).