Exosomes derived from bone-marrow mesenchymal stem cells alleviate cognitive decline in AD-like mice by improving BDNF-related neuropathology. Alzforum, 11 Feb 2022 Liu S, Fan M, Xu JX, Yang LJ, Qi CC, Xia QR, Ge JF. J Neuroinflammation. 2022 Feb 7;19(1):35.