The CD33 short isoform is a gain-of-function variant that enhances Aβ1-42 phagocytosis in microglia. Alzforum, 02 Apr 2021 Bhattacherjee A, Jung J, Zia S, Ho M, Eskandari-Sedighi G, St Laurent CD, McCord KA, Bains A, Sidhu G, Sarkar S, Plemel JR…