Fig. 2From: Effect study of exosomes derived from platelet-rich plasma in the treatment of knee cartilage defects in ratsGeneral observation of the repair of knee articular cartilage defect, left untreated control or treated with PRP-exos (50 μg/ml), PRP-exos (5 μg/ml) or PRP (50 μg/ml), at 5 and 10 weeks after operationBack to article page