Serum P-selectin level during controlled ovarian hyperstimulation--a preliminary report

Area of Science:

• Reproductive endocrinology
• Hematology
• Infertility research

Background:

• Controlled ovarian hyperstimulation (COH) is a key component of in vitro fertilization (IVF).
• Understanding the physiological changes during COH is crucial for optimizing treatment protocols.
• P-selectin is a marker of platelet activation.

Purpose of the Study:

• To measure serum P-selectin levels in patients undergoing COH.
• To investigate the correlation between P-selectin levels and COH variables.

Main Methods:

• Blood samples were collected from 14 patients undergoing COH for unexplained infertility at three time points: pre-gonadotropin (Day-0), prior to hCG (Day-hCG), and ovulation (Day-OVU).
• Serum P-selectin and sex steroid levels were measured using a quantitative sandwich immunoassay.
• Percent differences in P-selectin levels were calculated to account for interpatient variability.

Main Results:

• Serum P-selectin levels were significantly higher on Day-hCG compared to Day-0 (P < 0.05).
• P-selectin levels showed a non-significant increase from Day-hCG to Day-OVU (P < 0.12).
• No significant correlations were found between serum P-selectin and patient age, gonadotropin dosage, estradiol, or progesterone levels.

Conclusions:

• COH up to peak estradiol may induce platelet activation, as indicated by increased serum P-selectin.
• Platelet activation appears to be attenuated after human chorionic gonadotropin (hCG) administration.
• Further research is needed to elucidate the clinical implications of these findings in COH cycles.