As cancer treatment improves, more young men and women survive, but they suffer from infertility as a major sequel of cancer treatment. Gamete and embryo cryopreservation are the only options available to these patients for preserving their fertility. Although cryopreservation of spermatozoa and embryos are already established, oocyte banking is still experimental. The advent of testicular tiss...

Cryopreservation of eggs or ovarian tissue to preserve fertility for patients with cancer has been studied since 1994 with R G Gosden’s paper describing restoration of fertility in oophorectomised sheep, and for decades previously by others in smaller mammals. Clinically this approach has shown great success. Many healthy children have been born from eggs cryopreserved with the Kuwayama egg vit...

BACKGROUND Oocyte cryopreservation remains a realistic objective, provided that more systematic approaches are applied, such as thorough analysis of the oocyte oolemma permeability to water and diverse cryoprotectants. METHODS We prospectively investigated volume changes over time at different temperatures (30 degrees C, 22 degrees C and 8 degrees C) of human metaphase II (MII) oocytes (obtai...

Background: Cryopreservation of ovarian tissue is an important option for preserving the fertility of cancer patients undergoing chemotherapy and radiotherapy. Researchers have used different cryoprotectants and various techniques to improve the cryopreservation of ovaries However, despite significant recent progress, the efficiency of ovary cryopreservation is still low. Zinc is essential for ...

•We reported oocyte collection from an ovarian tumor with a single ovary.•Intra-operative retrieval of oocytes may be useful for preserving fertility.•We have done in vitro maturation for immature oocytes with ovarian enucleation.