A successful pregnancy and live birth after intracytoplasmic sperm injection with globozoospermic sperm and electrical oocyte activation.

Objective: To present the effectiveness of intracytoplasmic sperm injection (ICSI) using globozoospermic sperm and assisted oocyte activation by electrical stimulation.

Design: A case report.

Setting: A private IVF center in Japan.

Full-term development of hamster embryos produced by injection of round spermatids into oocytes.

The golden hamster is a mammal in which microinjection of round spermatids into oocytes (ROSI) was first attempted. However, no live ROSI offspring have ever been obtained in this species. This is the first report of live hamster offspring obtained by round spermatid injection.

Successful delivery following cryopreservation of zygotes produced by in vitro matured oocytes retrieved from a woman with polycystic ovarian syndrome-like disease: a case report.

Purpose: To estimate frozen zygotes, which developed from in vitro matured oocytes retrieved from polycystic ovarian syndrome-like disease.

Methods: Oocyte retrieval was performed on Day 15 following withdrawal bleeding. The oocytes were incubated for 24 h in TCM-199 maturation medium supplemented with follicle fluid, E2, FSH, and hCG.