it was found that type i collagen increased relative to types iii and v collagens , which seemed to remain at values comparable to those observed in lungs from control ( normal ) rats , both in terms of newly synthesized collagen ( collagen synthesized by lung minces during 4 h in culture ) and total unlabeled lung collagen ( collagen synthesized during the life of the animal ) .
C0041455
type i collagen
C0009325
collagen