Document Detail


Trophoblast invasion and oxygenation of the placenta: measurements versus presumptions.
MedLine Citation:
PMID:  23747129     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
Invasion of extravillous trophoblast into maternal tissues has a profound effect on the oxygenation of the placenta and hence the fetus. The main route of trophoblast invasion is interstitial invasion into the tissues of the decidua and myometrium. From this main route side branches reach the spiral arteries (endovascular trophoblast) as well as the uterine glands (endoglandular trophoblast) to open both structures toward the intervillous space. This enables histiotrophic nutrition in the first trimester and hemotrophic nutrition in the second and third trimesters of pregnancy. Failure of endovascular trophoblast invasion has profound effects on the oxygenation of the placenta. Interestingly, this does not lead to hypoxia as has long been presumed. Rather, all measurements available today point to increased oxygen levels within the placenta in patients with a failure of spiral artery transformation. This should lead to a rethink regarding pathological conditions such as intrauterine growth restriction and preeclampsia.
Authors:
Berthold Huppertz; Gregor Weiss; Gerit Moser
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2013-6-5
Journal Detail:
Title:  Journal of reproductive immunology     Volume:  -     ISSN:  1872-7603     ISO Abbreviation:  J. Reprod. Immunol.     Publication Date:  2013 Jun 
Date Detail:
Created Date:  2013-6-10     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  8001906     Medline TA:  J Reprod Immunol     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Copyright Information:
Copyright © 2013. Published by Elsevier Ireland Ltd.
Affiliation:
Institute of Cell Biology, Histology and Embryology, Medical University of Graz, Austria. Electronic address: berthold.huppertz@medunigraz.at.
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