
Episode #39
Harvard Finds Aging Microbiome Harms the Brain, Plus 4 More Breakthroughs - Longevity Papers Mar 2026
In this episode of Longevity Papers, we analyze five standout papers from longevitypapers.com covering the past four weeks of longevity research (February-March 2026): 1) Microbiome depletion rejuvenates the aging brain (Gasperini, Holton, Limone et al., Harvard University, February 15, 2026, bioRxiv, https://www.biorxiv.org/content/10.64898/2026.02.13.705770v1 ) - Antibiotic-induced microbiome depletion in aged mice triggers widespread brain rejuvenation including improved neurogenesis, myelination, vascular density, and memory. The aged gut microbiome drives brain aging through eotaxin-1 (CCL11) - the same factor found elevated in old blood in the classic heterochronic parabiosis studies. Inhibiting eotaxin-1 alone was sufficient to reverse multiple brain aging hallmarks. 2) Transplanting...

