Journal
AMERICAN JOURNAL OF OBSTETRICS AND GYNECOLOGY
Volume 211, Issue 3, Pages -Publisher
MOSBY-ELSEVIER
DOI: 10.1016/j.ajog.2014.03.020
Keywords
angiogenic markers; obesity; placenta; preeclampsia; soluble fms-like tyrosine kinase-1
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Funding
- Abbott Diagnostics Research grant [9MZ-04-06N03]
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OBJECTIVE: Because obesity is a risk factor for placental dysfunction, we hypothesized that maternal body mass index (BMI) would be associated with alterations in serum angiogenic markers. STUDY DESIGN: We included 2399 singleton pregnancies with and without placental dysfunction in a prospective longitudinal cohort study of angiogenic markers. We modeled the relationship between categorical and continuous BMI, soluble fms-like tyrosine kinase-1 (sFlt-1), and placental growth factor (PlGF) over gestation, stratified by pregnancy outcome. RESULTS: In women with normal pregnancies, a higher BMI was associated with lower sFlt-1 values across gestation (P < .0001), lower PlGF in the second and third trimesters (P < .0001), and lower rate of change in PlGF (P < .0001). Similar relationships were seen between maternal BMI, sFlt-1 (P < .0001), and PlGF (P = .0005) in women with clinically evident placental dysfunction. CONCLUSION: The sFlt-1 value is inversely associated with maternal BMI. The pattern of change in PlGF is also dependent on maternal BMI, indicating that obese women may have abnormalities in angiogenesis near term.
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