Outcome parameters: Main outcome measure is to assess if there is neuroinflammation with alcoholism and if it recovers with detoxification. Secondary outcome measures are: to assess if neuroinflammation is associated with markers of brain function, which include (1) regional brain glucose metabolism; (2) MRI based voxel-based morphometry (VBM) to assess cortical atrophy; (3) blood-oxygenation level-dependent (BOLD) activation to a cognitive task, (4) brain functional connectivity, (5) myo-inositol (mI) concentration, and (6) NP testing to assess cognitive performance, and to evaluate if neuroinflammation predicts relapse in AD over a 3 month follow-up period.