Elevation of Peripheral BDNF Promoter Methylation Predicts Conversion from Amnestic Mild Cognitive Impairment to Alzheimer's Disease: A 5-Year Longitudinal Study. Xie B, Xu Y, Liu Z, Liu W, Jiang L, Zhang R, Cui D, Zhang Q, Xu S J Alzheimers Dis. 2017; 56(1):391-401. PMID: 27935556. Abstract Comment Bookmark Recommend Follow Comment | Bookmark | Recommend | Follow