Glycosaminoglycans in cervical connective tissue during pregnancy and parturition. 1993

R Osmers, and W Rath, and M A Pflanz, and W Kuhn, and H W Stuhlsatz, and M Szeverényi
Department of Obstetrics and Gynecology, University of Göttingen, Germany.

OBJECTIVE To investigate the content and distribution patterns of glycosaminoglycans in the human cervix during pregnancy and parturition. METHODS We obtained a total of 87 specimens from nonpregnant and pregnant women. Biopsies (weight 50-200 mg) were taken from the posterior lip of the cervix. Hyaluronic acid, dermatan sulfate, chondroitin sulfates, and heparan sulfate were separated on a Dowex 1 x 2 column and identified. RESULTS The total amount of glycosaminoglycans increased during pregnancy from 2800 to 5000 nmol/g dry weight. The highest values were observed at the onset of labor (7100 nmol/g dry weight), followed by a sharp decrease during parturition. The clinical features of cervical ripening and dilatation were also associated with remarkable changes in glycosaminoglycan patterns. CONCLUSIONS Besides collagenolysis during pregnancy, the glycosaminoglycans are also important regulators of cervical function. The different clinical features of the human cervix are characterized not only by variation in the total glycosaminoglycan content but also by changes in the proportions of the different glycosaminoglycans.

UI MeSH Term Description Entries
D007743 Labor, Obstetric The repetitive uterine contraction during childbirth which is associated with the progressive dilation of the uterine cervix (CERVIX UTERI). Successful labor results in the expulsion of the FETUS and PLACENTA. Obstetric labor can be spontaneous or induced (LABOR, INDUCED). Obstetric Labor
D008593 Menopause The last menstrual period. Permanent cessation of menses (MENSTRUATION) is usually defined after 6 to 12 months of AMENORRHEA in a woman over 45 years of age. In the United States, menopause generally occurs in women between 48 and 55 years of age. Change of Life, Female
D011247 Pregnancy The status during which female mammals carry their developing young (EMBRYOS or FETUSES) in utero before birth, beginning from FERTILIZATION to BIRTH. Gestation,Pregnancies
D011261 Pregnancy Trimester, First The beginning third of a human PREGNANCY, from the first day of the last normal menstrual period (MENSTRUATION) through the completion of 14 weeks (98 days) of gestation. Early Placental Phase,Pregnancy, First Trimester,Trimester, First,Early Placental Phases,First Pregnancy Trimester,First Pregnancy Trimesters,First Trimester,First Trimester Pregnancies,First Trimester Pregnancy,First Trimesters,Phase, Early Placental,Phases, Early Placental,Placental Phase, Early,Placental Phases, Early,Pregnancies, First Trimester,Pregnancy Trimesters, First,Trimesters, First
D011263 Pregnancy Trimester, Third The last third of a human PREGNANCY, from the beginning of the 29th through the 42nd completed week (197 to 294 days) of gestation. Pregnancy, Third Trimester,Trimester, Third,Last Trimester,Last Trimesters,Pregnancies, Third Trimester,Pregnancy Trimesters, Third,Third Pregnancy Trimester,Third Pregnancy Trimesters,Third Trimester,Third Trimester Pregnancies,Third Trimester Pregnancy,Third Trimesters,Trimester, Last,Trimesters, Last,Trimesters, Third
D002584 Cervix Uteri The neck portion of the UTERUS between the lower isthmus and the VAGINA forming the cervical canal. Cervical Canal of the Uterus,Cervical Canal, Uterine,Ectocervix,Endocervical Canal,Endocervix,External Os Cervix,External Os of the Cervix,Uterine Cervical Canal,Cervix,Cervixes,Uterine Cervix,Canal, Endocervical,Canal, Uterine Cervical,Cervix, External Os,Cervix, Uterine,Endocervical Canals,Uterine Cervical Canals
D003238 Connective Tissue Tissue that supports and binds other tissues. It consists of CONNECTIVE TISSUE CELLS embedded in a large amount of EXTRACELLULAR MATRIX. Connective Tissues,Tissue, Connective,Tissues, Connective
D005260 Female Females
D006025 Glycosaminoglycans Heteropolysaccharides which contain an N-acetylated hexosamine in a characteristic repeating disaccharide unit. The repeating structure of each disaccharide involves alternate 1,4- and 1,3-linkages consisting of either N-acetylglucosamine (see ACETYLGLUCOSAMINE) or N-acetylgalactosamine (see ACETYLGALACTOSAMINE). Glycosaminoglycan,Mucopolysaccharides
D006801 Humans Members of the species Homo sapiens. Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man

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