Fig. 1. Changes in neuropsychological tests over 24 wk. Korean red ginseng improved Alzheimer’s Disease Assessment Scale-cognitive subscale (ADAS-cog) (A) in the high-dose ginseng group, compared with control, at both 12-week and 24-week follow-up evaluations. Korean version of the Mini-Mental Status Examination (K-MMSE) score was also improved at 24-week follow up in the ginseng group, compared to control (B). Black bar, 12 wk; grey bar, 24 wk. *p<0.05 compared to control, independent t-test.