Journal
EUROPEAN JOURNAL OF OBSTETRICS & GYNECOLOGY AND REPRODUCTIVE BIOLOGY
Volume 124, Issue 1, Pages 70-76Publisher
ELSEVIER
DOI: 10.1016/j.ejogrb.2005.08.017
Keywords
controlled ovarian hyperstimulation; GnRH antagonist; LH; VEGF
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Background: The aim of this study was to investigate the effect of GnRH antagonists (GnRH-ant) on follicular fluid vascular endothelial growth factor (FF VEGF). Methods: Sixty women undergoing assisted reproduction were randomised (computer-generated randomisation list) and assigned to two different GnRH analogue regimens: GnRH agonist (GnRH-a) (Group A; n = 30) and GnRH-ant (Group 13; n = 30). Results: Mean (+/- S.D.) FF VEGF concentrations were 1598 +/- 612 pg/mL and 2906 +/- 1558 pg/mL for Groups A and B, respectively (p < 0.001). In the women treated with GnRH-ant, we found a statistically significant reduction in serum LH levels (1.72 +/- 0.74 IU/L in Group A versus 0.93 +/- 0.43 IU/L in Group B, p < 0.001), in serum oestradiol (E-2) levels (1562.1 +/- 410.7 pg/mL in Group A versus 1214.67 +/- 779.9 pg/mL in Group B, p < 0.05), in FF E-2 levels (1146 +/- 593 ng/mL in Group A versus 621 +/- 435 ng/mL in Group B, p < 0.05), and in FF androstenedione levels (136 55 ng/mL in Group A versus 78 31 ng/mL in Group B, p < 0.001), as well as a reduction in the number of pregnancies, though not statistically significant (23.3% in Group A versus 16.6% in Group B). Conclusion: The increase in FF VEGF levels in women treated with GnRH-ant might be explained by a suppression of LH and E-2 levels. (c) 2005 Elsevier Ireland Ltd. All rights reserved.
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