Choline 1 (IMAGE) Arizona State University Caption Mice with AD-like symptoms receiving supplemental levels of choline in the womb improved their spatial memory. A second generation bred from these choline-treated mice also showed improved spatial memory, suggesting epigenetic changes in genes. Choline acts to reduce harmful levels of the amino acid homocysteine, converting it to the beneficial chemical methionine. Credit Graphic by Shireen Dooling Biodesign Institute at ASU Usage Restrictions None License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.