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I read on {1}:

Type III collagen has accumulated at the rupture site [of human Achilles tendon] probably due to microtraumas and the subsequent healing process. […] The increased content of type III collagen can cause thinner collagen fibers, decrease the tensile strength and may finally result in total rupture of the tendon.

Why does the ratio type III collagen:type I collagen increase after a tendon injury? Does it have any upside for the tendon repair? If not, why not keeping the same ratio type III collagen:type I collagen as in the original tendon?


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