Fig. 4From: Melatonin enhances autologous adipose-derived stem cells to improve mouse ovarian function in relation to the SIRT6/NF-κB pathwayThe differentiation of autologous ADSCs. a Lipid droplets secreted by differentiated adipocytes were observed under bright-field microscope. The arrow indicates lipid droplets. b–d The adipogenic, osteogenic, and chondrogenic differentiation of ADSCs was assessed by Oil Red O staining, Alizarin Red staining, and Alcian blue staining, respectively. The arrows in b-d indicate lipid droplets, calcium nodules, and mucopolysaccharides in chondrocytes, respectively. Scale bar: 50 μmBack to article page