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. 1993 Sep;159(3):350–355.

Scarless skin wound repair in the fetus.

H P Lorenz 1, N S Adzick 1
PMCID: PMC1011349  PMID: 8236977

Abstract

The ability of a fetus to heal without scar formation depends on its gestational age at the time of injury and the size of the wound defect. In general, linear incisions heal without scar until late in gestation whereas excisional wounds heal with scar at an earlier gestational age. The profiles of fetal proteoglycans, collagens, and growth factors are different from those in adult wounds. The less-differentiated state of fetal skin is probably an important characteristic responsible for scarless repair. There is minimal inflammation in fetal wounds. Fetal wounds are characterized by high levels of hyaluronic acid and its stimulator(s) with more rapid, highly organized collagen deposition. The roles of peptide growth factors such as transforming growth factor-beta and basic fibroblast growth factor are less prominent in fetal than in adult wound healing. Platelet-derived growth factor has been detected in scarless fetal skin wounds, but its role is unknown. An understanding of scarless tissue repair has possible clinical application in the modulation of adult fibrotic diseases and abnormal scar-forming conditions.

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Selected References

These references are in PubMed. This may not be the complete list of references from this article.

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