Identification of Premeiotic, Meiotic, and Postmeiotic Cells in Testicular Biopsies Without Sperm from Sertoli Cell-Only Syndrome Patients.

Sertoli cell-only syndrome (SCOS) affects about 26.3⁻57.8% of azoospermic men, with their seminiferous tubules containing only Sertoli cells.

Prospective evaluation of early follicular ovarian stromal blood flow in infertile women undergoing IVF-ET treatment.

Background: To evaluate the role of early follicular stromal flow studies in predicting ovarian response during IVF-ET treatment and to assess their correlation with ovarian reserve parameters and clinical pregnancy achievement.

Materials & Methods: One hundred and sixty-eight consecutive and unselected infertile women undergoing their first IVF-ET treatment were included in the study. Basal ovarian reserve and stromal Doppler flow studies were performed in a natural cycle before starting treatment.

Early and short follicular gonadotropin-releasing hormone antagonist supplementation improves the meiotic status and competence of retrieved oocytes in in vitro fertilization-embryo transfer cycles.

Objective: To investigate whether early and short follicular administration of GnRH antagonist using the flexible protocol has the potential to improve IVF-ET clinical results.

Design: Prospective, controlled, randomized study.

Setting: University-affiliated assisted reproductive technology unit.

A simple multivariate score could predict ovarian reserve, as well as pregnancy rate, in infertile women.

Objective: To find a simple multivariate score that has the potential to predict ovarian reserve, as well as pregnancy rate, in infertile women.

Design: A prospective study.

Setting: A university-affiliated reproductive medicine unit.

First polar body and nucleolar precursor body morphology is related to the ovarian reserve of infertile women.

This study was undertaken in order to gain insight into the morphology of the first polar body (PB1) and the two pronuclei (2PN) in ICSI patients, specifically the nucleolar precursor bodies (NPB). Whether early abnormalities in these structures are related to the ovarian reserve of infertile women was also studied. Eighty consecutive infertile women were prospectively investigated throughout their first ICSI cycles.