WTAP and Alzheimer disease: the m6A methyltransferase methyltransferase‐like 3 (Mettl3), Mettl14, and (Wilms' tumor 1‐associated protein) WTAP were decreased and demethylases AlkB homolog 5 and obesity‐associated protein (FTO) was decreased in the postmortem AD hippocampal tissues [11, 12, 13].