Expression of laminin receptor 1 in human placentas from normal and preeclamptic pregnancies and its relationship with the severity of preeclampsia
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        Mertihan Kurdoglu
        , Zehra Kurdoglu 
Abstract
Objectives: To investigate the expression of laminin receptor 1 (LR1), a non-integrin-type laminin receptor, in preeclamptic and normal third-trimester placentas, as well as to investigate whether its expression differs with disease severity.
Study design: Third trimester placental samples obtained from deliveries of preeclamptic (n=34) and normotensive healthy pregnant women (n=35) were immunohistochemically studied for the expression of LR1. The placentas from both mild (n=14) and severe (n=20) preeclamptic pregnancies were further assessed for strength of LR1 expression according to disease severity.
Results: When compared with normal placentas, the staining with LR1 protein in cytotrophoblasts and syncytiotrophoblasts was lower in preeclamptic placentas (P<0.05 and P<0.01, respectively). The intensity of staining with LR1 in decidual cells, cytotrophoblasts, syncytiotrophoblasts, and extracellular matrix cells of preeclamptic placentas did not vary with disease severity (P>0.05).
Conclusions: Decreased LR1 expression in cytotrophoblasts and syncytiotrophoblasts of preeclamptic placentas, which may be independent of disease severity, might have a role in shallow trophoblastic invasion in preeclampsia.
©2011 by Walter de Gruyter Berlin Boston
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Articles in the same Issue
- Review articles
- Bridging global gene expression candidates in first trimester placentas with susceptibility loci from linkage studies of preeclampsia
- Candidates for the determination of antithrombin activity in pregnant women
- Opinion paper
- Using prophylactic, but not tocolytic, magnesium sulfate to reduce cerebral palsy related to prematurity: what dose, and what about infant mortality?
- Original articles – Obstetrics
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- The placental factor in spontaneous preterm labor with and without premature rupture of membranes
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