Abstract

To evaluate the protective effect of GnRH agonist for the prevention of ovarian reserve during treatment with paclitaxel and cisplatin. Experimental study. University-based research laboratory. Seventy female Wistar-Albino rats. Each group consisted of 10 rats. Group 1 served as controls. Groups without GnRH agonist (groups 2, 3, and 4) were administered paclitaxel and cisplatin, respectively; the remaining groups (groups 5, 6, and 7) were given the same regimens with GnRH agonist. The GnRH agonist (leuprolide acetate; 2.5 microg/d subcutaneously for 5 weeks) was started four weeks before chemotherapy to achieve anovulation. Paclitaxel (7.5 mg/kg) and cisplatin (5 mg/kg) were administered intraperitoneally on the 28th day as a single dose. One week after the chemotherapy, the animals were euthanized and primordial, primary, secondary, and tertiary follicle counts were evaluated. Primordial, primary, and tertiary follicle counts in group 5 (paclitaxel plus GnRH agonist) and tertiary follicles in groups 2 and 3 had not decreased, but there was a significant decrease in other treatment groups compared with controls (P < 0.05). Binary comparison between all groups demonstrated that the primordial follicle count in group 5 was comparable to those of the controls. Paclitaxel plus GnRH agonist treatment may be an appropriate option for patients deserving further fertility in the preservation of primordial follicles.

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