Hum. Reprod. Advance Access published online on January 23, 2008
Human Reproduction, doi:10.1093/humrep/dem429
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Soluble vascular endothelial-cadherin levels correlate with clinical and biological aspects of severe ovarian hyperstimulation syndrome
1 Instituto Valenciano de Infertilidad—Madrid, Rey Juan Carlos University, Santiago de Compostela 88, 28035 Madrid, Spain 2 Instituto Valenciano de Infertilidad—Valencia, Valencia University, Valencia, Spain
3 Correspondence address. Fax: +34-91-386-7133; E-mail: jgvelasco{at}ivi.es
BACKGROUND: Ovarian hyperstimulation syndrome (OHSS) is an iatrogenic complication of ovarian stimulation, and the pathophysiological mechanisms that trigger the syndrome remain unknown. HCG increases serum vascular endothelial growth factor (VEGF) concentrations, and VEGF modulates transendothelial permeability via endothelial adherens junctions, a downstream target for VEGF signalling. We examined whether women with severe OHSS have altered serum levels of soluble vascular endothelial (sVE)-cadherin.
METHODS: We conducted a prospective, case-control study of 28 women with severe OHSS and 34 women undergoing controlled ovarian hyperstimulation (COH) for IVF without developing OHSS. We collected serum samples from both groups on the day of ovum retrieval (Day 0), and on Days 3, 6, 9 and 15. Samples were assayed for sVE-cadherin by enzyme-linked immunosorbent assay.
RESULTS: Women with severe OHSS had significantly higher levels of sVE-cadherin than patients without OHSS (P = 0.001). sVE-cadherin serum levels decreased with clinical improvement; however, they did not reach normal levels in the resolution phase. A positive correlation was demonstrated between sVE-cadherin and serum estradiol levels at the time of HCG administration (r = 0.621; P < 0.001). Serum sVE-cadherin levels were more closely chronologically correlated with corpus luteum function than with biological and clinical aspects of severe OHSS.
CONCLUSIONS: sVE-cadherin may be involved in the pathogenesis of severe OHSS and may possibly serve as an indicator of corpus luteum function after COH.
Key words: capillary permeability/endothelium/vascular endothelial-cadherin/vascular endothelial growth factor/ovarian hyperstimulation syndrome
Submitted on July 17, 2007; resubmitted on November 24, 2007; accepted on December 13, 2007.
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