Article (Scientific journals)
Effects of 4-Hydroxy-2-Nonenal, a Major Lipid Peroxidation-Derived Aldehyde, and N-Acetylcysteine on the Cyclooxygenase-2 Expression in Human Uterine Myometrium.
Temma-Asano, K.; Tskitishvili, Ekaterine; Kanagawa, T. et al.
2011In Gynecologic and Obstetric Investigation
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Effects of 4-Hydroxy-2-Nonenal, a Major Lipid Peroxidation-Derived Aldehyde, and N-Acetylcysteine on the Cyclooxygenase-2 Expression in Human Uterine Myometrium.docx
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This is the Author’s Preprint of an article published in Gynecological and Obstetric Investigation; 2011; 72(1):37-42. The original published version is available at: http://content.karger.com/produktedb/produkte.asp?DOI=000322393&typ=pdf
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Keywords :
Prostaglandin,Preterm labor,Oxidative stress; Myometrium, N-Acetylcysteine; 4-Hydroxy-2-nonenal, Cyclooxygenase-2
Abstract :
[en] Background: Chorioamnionitis is one of the important causes of preterm labor. Preterm labor with chorioamnionitis is associated with oxidative stress. We reported that 4-hydroxy-2-nonenal (4-HNE), a major end product of oxidative fatty acid metabolism, is accumulated in the placenta with chorioamnionitis. The aim of this study was to confirm the effect of 4-HNE on cyclooxygenase-2 (COX-2) and prostaglandin (PG) induction in the uterine myometrial tissues. We also examined the effect of N-acetylcysteine (NAC) on 4-HNE-induced COX-2 expression. Methods: Uterine myometrial tissues were obtained from 5 patients. One of them underwent elective cesarean section without labor, and 4 of them underwent hysterectomy because of placental previa or atonic bleeding. We stimulated the uterine myometrial tissues with 4-HNE. In addition, the tissues were pretreated with NAC before 4-HNE treatment. The expression of COX-2 mRNA was observed by real-time PCR. PGE2 and prostacyclin release into the supernatants of the tissue cultures was measured by ELISA. Results: 4-HNE induced the COX-2 mRNA expression and PGE2 production in the uterine myometrial tissue culture in a dose-dependent and time-dependent manner. NAC inhibited 4-HNE-induced COX-2 expression. Conclusion: 4-HNE may play an important role in preterm labor. NAC might be protective against preterm labor under oxidative stress.
Disciplines :
Reproductive medicine (gynecology, andrology, obstetrics)
Author, co-author :
Temma-Asano, K.
Tskitishvili, Ekaterine  ;  Université de Liège - ULiège > Département des sciences cliniques > Labo de biologie des tumeurs et du développement
Kanagawa, T.
Tomimatsu, T.
Tsutsui, T.
Kimura, T.
Chang, Y. S.
Nakamura, T.
Nakai, Y.
Shimoya, K.
Language :
English
Title :
Effects of 4-Hydroxy-2-Nonenal, a Major Lipid Peroxidation-Derived Aldehyde, and N-Acetylcysteine on the Cyclooxygenase-2 Expression in Human Uterine Myometrium.
Publication date :
2011
Journal title :
Gynecologic and Obstetric Investigation
ISSN :
0378-7346
eISSN :
1423-002X
Publisher :
S. Karger, Basel, Switzerland
Peer reviewed :
Peer Reviewed verified by ORBi
Commentary :
Copyright (c) 2011 S. Karger AG, Basel.
Available on ORBi :
since 13 February 2012

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