Abstract
To establish the serum pattern for glycodelin and to investigate the possible correlations of serum and follicular fluid (FF) glycodelin with clinical pregnancy in gonadotropin-releasing hormone (GnRH)-antagonist controlled cycles.A prospective observational study conducted with 80 infertile couples who received a GnRH-antagonist controlled cycle. Glycodelin levels were measured in FF, day 2-3, and ovarian pick-up (OPU)-day serum samples.There were no significant differences in serum glycodelin concentrations in either the early follicular phase or the preovulatory phase, and in FF glycodelin concentrations between clinically pregnant and non-pregnant patients. OPU-day serum glycodelin was found to be significantly higher than early follicular serum glycodelin level in all patients whether pregnancy occurred or not.Although day 2-3 and OPU-day measurements of serum glycodelin levels were not significant in predicting clinical pregnancy, the pattern of serum glycodelin seems different in GnRH-antagonist controlled cycles than natural and GnRH-agonist controlled cycles.
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