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Delivery of 2RJ hydrogel increases Ki67 expression. (A) Quantification of Ki67+ cells in rat hearts on day 21 shows an increase in Ki67+ cell number in infarcted rats treated with 2RJ hydrogel. *p<0.05, n=4 per group. (B) Representative images of Ki67 staining in the myocardium. Blue, DAPI; green, Ki67 nuclei. Scale bar=50 μm.
