Document Detail


The severity of hypoxic changes and oxidative DNA damage in the placenta of early-onset preeclampic women and fetal growth restriction.
MedLine Citation:
PMID:  23035823     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
Abstract To investigate the relation between the severity of hypoxic changes and oxidative DNA damage in the placenta of early and late-onset preeclampic women and FGR, serum parameters of oxidative stress, placental hypoxic change, and oxidative DNA damage were determined.We examined 10 participants with uncomplicated pregnancies, 13 with early-onset and 12 with late-onset preeclampsia. Maternal and umbilical plasma derivatives of reactive oxygen metabolites (d-ROMs) were measured as markers of oxygen free radicals. Immunohistochemical analysis was performed to measure the proportion of placental trophoblast cell nuclei staining positive for 8-hydroxy-2'-deoxyguanosine (8-OHdG), redox factor-1 (ref-1), and hypoxia-induced factor-1α (HIF-1α), which are markers of oxidative DNA damage, repair functions, and hypoxia status, respectively. 8-OHdG was higher in both preeclamptic groups, but significantly higher in the early-onset preeclamptic group. Ref-1 was higher in the late-onset preeclamptic group. HIF-1α was higher in both preeclamptic groups, with a tendency towards a higher in the early-onset preeclamptic group. Our findings indicate that the severity of hypoxic changes and oxidative DNA damage are greater in the placenta of women with early-onset preeclampsia, and that the prolonged preeclamptic conditions may reduce placental blood flow, ultimately leading to fetal growth restriction (FGR).
Authors:
Chiharu Kimura; Kazushi Watanabe; Ai Iwasaki; Toshitaka Mori; Hiroshi Matsushita; Koichi Shinohara; Akihiko Wakatsuki
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2012-10-4
Journal Detail:
Title:  The journal of maternal-fetal & neonatal medicine : the official journal of the European Association of Perinatal Medicine, the Federation of Asia and Oceania Perinatal Societies, the International Society of Perinatal Obstetricians     Volume:  -     ISSN:  1476-4954     ISO Abbreviation:  J. Matern. Fetal. Neonatal. Med.     Publication Date:  2012 Oct 
Date Detail:
Created Date:  2012-10-5     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  101136916     Medline TA:  J Matern Fetal Neonatal Med     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Affiliation:
Department of Obstetrics and Gynecology, Aichi Medical University School of Medicine, Aichi, Japan.
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