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  • Title: Placental growth factor and soluble FMS-like tyrosine kinase-1 in early-onset and late-onset preeclampsia.
    Author: Wikström AK, Larsson A, Eriksson UJ, Nash P, Nordén-Lindeberg S, Olovsson M.
    Journal: Obstet Gynecol; 2007 Jun; 109(6):1368-74. PubMed ID: 17540809.
    Abstract:
    OBJECTIVE: To estimate whether alterations in plasma levels of the proangiogenic proteins placental growth factor (PlGF) and vascular endothelial growth factor-A (VEGF-A), and the antiangiogenic protein soluble fms-like tyrosine kinase-1 (sFlt1) were more pronounced in early-onset than in late-onset preeclampsia. METHODS: A cross-sectional study was conducted to estimate the levels of sFlt1, PlGF, and VEGF-A in plasma in a control group of nonpregnant women, in an early control group of women at 24-32 weeks of gestation, in a late control group of women at 36-42 weeks of gestation, and in cases of women with early-onset (before 32 weeks of gestation) and late-onset (after 35 weeks of gestation) preeclampsia. RESULTS: Women with early-onset preeclampsia had a 43 times higher median plasma sFlt1 level than early controls (P<.001). Women with late-onset preeclampsia had a three times higher median plasma sFlt1 level than late controls (P<.001). Women with early-onset preeclampsia had a 21 times lower median plasma PlGF level than early controls (P<.001). Women with late-onset preeclampsia had a five times lower median plasma PlGF level than late controls (P=.01). The median level of VEGF-A in plasma was less than 15 pg/mL in all groups of pregnant women. CONCLUSION: Both early- and late-onset preeclampsia are associated with altered plasma levels of sFlt1 and PlGF. The alterations are more pronounced in early-onset rather than in late-onset disease.
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