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Fig. 4 | Stem Cell Research & Therapy

Fig. 4

From: Extracellular vesicles from human mesenchymal stem cells expedite chondrogenesis in 3D human degenerative disc cell cultures

Fig. 4

GAG production and histological staining of DC pellets treated with sEVs from day 7 to 28. a Quantification of GAG production in DC pellets. Values presented in bar charts are the mean ± SEM (n = 5).*p < 0.05 and **p < 0.01. b Alcian Blue van Gieson staining of DC pellets. Histology sections present proteoglycan (blue) and collagen (pink), and black dots represent nuclei of the cells

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Stem Cell Research & Therapy

ISSN: 1757-6512