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Expression of Cyclooxygenase-1 , -2 in Human Uterine Cervix of Preterm and Term Pregnancies

Other Title
조산 산모와 정상 만삭 분만 산모의 자궁경부조직에서 Cyclooxygenase-1 , -2의 발현 양상
Authors
김, 행수; 김, 명신; 양, 현원; 양, 정인; 안, 은주; 오, 기석
Citation
Taehan Sanbuinkwa Hakhoe chapchi, 42(4):784-789, 1999
Journal Title
Taehan Sanbuinkwa Hakhoe chapchi; Korean journal of obstetrics and gynecology; 대한산부인과학회잡지
ISSN
0494-4755
Abstract
Objective: The purpose of this study was to determine whether cyclooxygenase [COX]-1 and COX-2 are expressed in the pregnant human uterine cervix and if they are expressed differentially between preterm and term pregnancies. Methods: Fourteen patients delivered between 29 and 41 weeks of gestation were matched for obstetrical history and maternal age were divided into a preterm group who delivered between 29 and 36 weeks [n=7], and a term group who delivered between 37 and 41 weeks of gestation [n=7]. Immediately after vaginal delivery cervical biopsy samples were obtained and immunohistochemicaly stained for COX-1 and COX-2 and the degree of staining was evaluated by H-scoring system. Results: Expression of COX-1 and COX-2 was found in all epithelial and stromal cells of uterine cervical tissues of pregnancy. The expression of COX-1 and COX-2 was significantly stronger in the term group compared to the preterm group in epithelial cells [HSCORE : 2.14±0.69 vs. 1.14±0.38 ; 3.71±0.76 vs. 1.86±0.90, p0.05]. Conclusion: In the pregnant human uterine cervix, COX-1 and COX-2 are found to be expressed, and both are strongly expressed in the cervical epithelial cells of term pregnancies compared to preterm pregnancies. It is suggested that the uterine cervix, under the control of prostaglandins, is actively involved in the process of labor, and that the role of COX-2 in epithelium is particularly significant in term pregnancies compared to preterm pregnancies.
Keywords
Cyclooxygenase-1cyclooxygenase-2uterine cervixpregnancy
Appears in Collections:
Journal Papers > School of Medicine / Graduate School of Medicine > Obstetrics & Gynecology
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