N1‐Acetyl‐5‐methoxykynuramine, which decreases in the hippocampus with aging, improves long‐term memory via CaMKII/CREB phosphorylation. - Watanabe, Kazuki; Maruyama, Yusuke; Iwashita, Hikaru; Kato, Haruyasu; Hirayama, Jun; Hattori, Atsuhiko (Journal of Pineal Research, 2024)