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  • Title: Pregnancy-related changes in the distribution of glycosaminoglycans in the cervix and corpus of the human uterus.
    Author: Cabrol D, Dallot E, Cedard L, Sureau C.
    Journal: Eur J Obstet Gynecol Reprod Biol; 1985 Nov; 20(5):289-95. PubMed ID: 2934284.
    Abstract:
    We investigated the variations in the distribution of glycosaminoglycans (GAG) in the cervical, isthmic and corporeal stroma of the pregnant and non-pregnant human uterus. The GAG were measured in non-pregnant (n = 9) and pregnant (n = 14) cervices, in non-pregnant (n = 8) and pregnant (n = 6) uterine isthmus, and in non-pregnant (n = 12) and pregnant (n = 5) uterine corpus. Heparan sulfate is abundant in the isthmic and corporeal stroma. This has to be related to a larger content in blood vessels and muscular cells at this level than in the cervix. The distribution of hyaluronic acid and dermatan sulfate is the same in the cervix as in the corpus, but the amount of these GAGs is lower in the former, which could be due to a lower connective tissue content. Two of the main features of cervical maturation, increased hydration, and decreased dermatan sulfate concentration, were found also in the pregnant corporeal stroma. These results suggest that connective tissue maturation is not only a cervical phenomenon and could play a role in active and/or passive mechanical properties of the myometrium during late pregnancy and labor.
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