Acute E2/P4 loss compromises the biology and function of neurogenic niches during a vulnerable female aging period. - Poorna Pillutla SV; Skoda MJ; Ishii A; Bernard K; Corenblum MJ; Montgomery T; Wene P; Menakuru N; Kraszewski JN; Billheimer D; Winter GM; Cowen SL; et al. (Stem cell reports, 2026)