Small molecule modulation of the p75 neurotrophin receptor promotes dendritic spine resilience to pathogenic tau species and reduces their accumulation Acta neuropathologica | 5 March, 2026 Tao Yang, Yeonglong Ay, Sukhneet Kaur, Robert R Butler, Kevin C Tran, Harry Liu, Vanessa F Langness, Stephen M Massa, Frank M Longo, PMID:41787486 | DOI:10.1186/s40478-026-02263-5