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. 2018 Aug 20;9:1076. doi: 10.3389/fphys.2018.01076

FIGURE 4.

FIGURE 4

Collagen deposition induced by medium supplementation with ascorbic acid, proline, and hydroxyproline (+supplements) and in the absence (stopped at day 5) or presence of aprotinin. Images from Trichome stained sections from different BAM groups, blue areas are collagen staining. (A–D) Fibrin BAMs with 1 mg/ml fibrin, additions to the media as shown on the graph. (E) 1 mg/ml collagen (Zyderm) BAM as positive control for the collagen staining. Scale bars are 100 μm. (F) Depicts collagen quantification. ∗∗P < 0.01 and ∗∗∗P < 0.001.