Fig. 2From: Panax notoginseng: derived exosome-like nanoparticles attenuate ischemia reperfusion injury via altering microglia polarizationBiodistribution of PDNs in MCAO rats after intravenous administration.a In vivo biodistribution of PDNs 0 ~ 12 h post administration. b Ex vivo biodistribution of PDNs in major organs 24 h post administration. c Quantification of uptake efficiency of different cells in brain parenchyma. (n = 6) BMEC: brain microvascular endothelial cell. d Immunofluorescence images of cellular location of PDNs in the brain. Scale bar = 20 μm. (n = 3)Back to article page