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Low 2-methoxyestradiol levels at the first trimester of pregnancy are associated with the development of pre-eclampsia.
MedLine Citation:
PMID:  22886584     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
OBJECTIVE: To determine whether maternal plasma levels of 2-methoxyestradiol (2-ME) are decreased early in pregnancies that subsequently develop pre-eclampsia (PE) and whether this difference could be attributed to the presence of Val158Met catechol-O-methyltransferase (COMT) polymorphism in the placenta. METHODS: Clinical characteristics and plasma samples were collected at 11 to 14 weeks prospectively in a cohort of patients. From them, 13 PE and 72 control pregnant women were chosen. Plasma soluble fms-like tyrosine kinase1 and placental growth factor levels were measured by electrochemiluminescence and 2-ME was measured by high-performance liquid chromatography with mass spectrometry/mass spectrometry detection. At delivery, placental tissue was collected and the Val158Met COMT polymorphism was determined by restriction fragment length polymorphism-PCR. RESULTS: At 11 to 14 weeks, patients who would develop PE have significantly lower plasma levels of 2-ME than controls [1.9 ± 2 standard error of the mean (SEM) vs 61.7 ± 27 pg/mL, P < 0.05]. The Val158Met polymorphism was more frequent in controls than in PE patients and the placental presence of COMT polymorphism was associated with a decreased risk of developing PE [PE: 23.1% vs control: 66.6%; χ (2)  = 10.9, p = 0.0041]. CONCLUSIONS: Lower plasma concentrations of 2-ME during early pregnancy in patients who subsequently develop PE were found. Presence of placental Val158Met COMT polymorphism is associated with a decreased risk to develop PE, suggesting a protective role against PE. © 2012 John Wiley & Sons, Ltd.
Authors:
Alejandra Pérez-Sepúlveda; María José Torres; Francisco J Valenzuela; Raimundo Larraín; Horacio Figueroa-Diesel; José Galaz; Jyh Kae Nien; Ramón Serra; Luis Michea; Sebastián E Illanes
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2012-8-7
Journal Detail:
Title:  Prenatal diagnosis     Volume:  -     ISSN:  1097-0223     ISO Abbreviation:  Prenat. Diagn.     Publication Date:  2012 Aug 
Date Detail:
Created Date:  2012-8-13     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  8106540     Medline TA:  Prenat Diagn     Country:  -    
Other Details:
Languages:  ENG     Pagination:  1-6     Citation Subset:  -    
Copyright Information:
© 2012 John Wiley & Sons, Ltd.
Affiliation:
Fetal Medicine Unit, Department of Obstetrics and Gynecology, Universidad de los Andes, San Carlos de Apoquindo, Santiago, Chile.
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