Fig. 3From: Exosomes derived from bone-marrow mesenchymal stem cells alleviate cognitive decline in AD-like mice by improving BDNF-related neuropathologyExosomes injection site and its trace. A Nissl staining shows that the catheter is accurately positioned to the lateral ventricle, compare with the mouse brain map. B PKH26-labeled red fluorescent exosome particles are observed in the hippocampus of Lv group. C Partial enlarged view of exosomes labeled with PKH26Back to article page