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. 2020 Jun 18;9(6):1903. doi: 10.3390/jcm9061903

Figure 1.

Figure 1

Comparison of proteoglycan and DNA content within original and repair cartilage following 1.0 and 1.8 mm subchondral drilling. Following 1.0 mm drilling, repair cartilage exhibited significantly increased DNA (A) and proteoglycan (C) content when compared with the original cartilage. In contrast, DNA and proteoglycan content was not significantly affected in the group with 1.8 mm drilling (B,D). The proteoglycan/DNA ratio was balanced in the 1.0 mm group, (E) whereas it decreased in the 1.8 mm group (F). Numbers 1–13 represent individual animals. Red dotted lines indicate mean values. * p < 0.05.