ReviewPublished 29 September 2026New insight into Alzheimer’s disease: small molecule-Aβ in the brain transport and peripheral organ clearanceTianci Ma · Yongyi Li · Yuting Ding · Shijie Liu · Chuanhao Gao · Xiang Li · Zhiqian Tong · Yan LvFrontiers in Agingdoi 10.3389/fragi.2026.1921485