Document Detail

ADAM12-s in coelomic fluid and maternal serum in early pregnancy.
MedLine Citation:
PMID:  17139693     Owner:  NLM     Status:  MEDLINE    
OBJECTIVES: ADAM12-s is a placental protein. In early pregnancy, reduced maternal levels of ADAM12-s have been reported in association with foetal trisomy 21 or 18 and in cases that subsequently develop pre-eclampsia and foetal growth restriction. The aim of this study is to investigate the distribution of ADAM12-s in early pregnancy by comparing its concentration in maternal serum, amniotic fluid and coelomic fluid. METHODS: Coelomic fluid was obtained by coelocentesis from 13 singleton pregnancies with live foetuses at 6.9-9.3 weeks of gestation. Maternal serum was also obtained in all cases and in six cases amniotic fluid was also obtained. The concentration of ADAM12-s was measured by dissociation enhanced lanthanide fluoro-immunoassay. RESULTS: The median concentration of ADAM12-s in maternal serum was 132.7 (range 33.8-254.5) ng/mL and in coelomic fluid it was 10.5 (range 1.3-15.8) ng/mL; there were no detectable levels in five of the six amniotic fluid samples. The concentration of maternal serum ADAM12-s increased significantly with gestation (r = 0.862, p < 0.0001). There was no significant association between coelomic fluid ADAM12-s and either gestation (r = 0.255, p = 0.401) or maternal serum ADAM12-s (r = 0.302, p = 0.316). CONCLUSION: The distribution of ADAM12-s in maternal serum and the early embryonic fluid compartments is consistent with its syncytiotrophoblastic origin.
George Makrydimas; Alexandros Sotiriadis; Kevin Spencer; Nicholas J Cowans; Kypros H Nicolaides
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Prenatal diagnosis     Volume:  26     ISSN:  0197-3851     ISO Abbreviation:  Prenat. Diagn.     Publication Date:  2006 Dec 
Date Detail:
Created Date:  2006-12-07     Completed Date:  2007-02-20     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  8106540     Medline TA:  Prenat Diagn     Country:  England    
Other Details:
Languages:  eng     Pagination:  1197-200     Citation Subset:  IM    
Copyright Information:
Copyright (c) 2006 John Wiley & Sons, Ltd.
Department of Obstetrics and Gynaecology, Ioannina University Hospital, 45500 Ioannina, Greece.
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MeSH Terms
ADAM Proteins / blood*
Amniotic Fluid / chemistry,  metabolism*
Body Fluids / chemistry,  metabolism*
Gestational Age
Membrane Proteins / blood*
Pregnancy / blood*
Prenatal Diagnosis / methods*
Reference Values
Trophoblasts / metabolism*
Reg. No./Substance:
0/Membrane Proteins; EC 3.4.24.-/ADAM 12 protein; EC 3.4.24.-/ADAM Proteins

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