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Apoptosis of chondrocytes in three rats from each group was detected by the DeadEnd Fluorometric TUNEL system. A significant difference of chondrocyte apoptosis between the control group and other groups was found (means ± standard error of mean). *P-value is less than 0.05.
Abbreviations: TUNEL, terminal deoxynucleotidyl transferase deoxyuridine triphosphate nick-end labeling; MSC, mesenchymal stem cell; SAP, self-assembled peptide.
