Journal
HYPERTENSION
Volume 58, Issue 6, Pages 1120-1125Publisher
LIPPINCOTT WILLIAMS & WILKINS
DOI: 10.1161/HYPERTENSIONAHA.111.179069
Keywords
25-hydroxyvitamin D; angiogenic factors; preeclampsia; sFLT-1/PlGF ratio; VEGF
Categories
Funding
- North Carolina Translational and Clinical Sciences Institution [2KR70904]
- Massachusetts General Hospital Center for D-receptor Activation Research
- National Institute of Environmental Health Sciences [T32ES007018]
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Recent studies have shown that low serum 25-hydroxyvitamin D (25[OH] D) level is a risk factor for preeclampsia. The clinical significance of in vitro findings that vitamin D regulates vascular endothelial growth factor production is unclear. We sought to determine whether there is an association between midgestation serum 25(OH)D levels and angiogenic factor activity and to compare their predictive value for the development of severe preeclampsia. We conducted a nested case-control study of women with severe preeclampsia (n = 41) versus women with uncomplicated term birth (n = 123) who had second trimester genetic screening (15-20 weeks). Using banked frozen serum, we measured levels of 25(OH)D, vascular endothelial growth factor, soluble fms-like tyrosine kinase 1, and placental growth factor and compared their correlations and predictive values. We found no correlation between serum 25(OH)D and angiogenic factors levels. 25(OH)D alone was comparable to vascular endothelial growth factor and soluble fms-like tyrosine kinase 1/placental growth factor ratio as a predictive marker for severe preeclampsia. A composite of both 25(OH)D level and soluble fms-like tyrosine kinase 1/placental growth factor ratio was more predictive than either alone (area under curve: 0.83 versus 0.74 and 0.67, respectively). In conclusion, combining midpregnancy 25(OH)D level with soluble fms-like tyrosine kinase 1/placental growth factor ratio provides a better prediction for the development of severe preeclampsia. (Hypertension. 2011;58:1120-1125.)
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