Background Ovarian tissue cryopreservation represents a promising strategy to preserve the ovarian function in cancer patients. It is usually performed by slow freezing/rapid thawing (SF/RT). Recent studies emphasize an ultrarapid cryopreservation procedure, vitrification/warming (V/W), since it might prevent damages due to ice crystal formation. Comparative studies between the cryopreservation...

Background Ovarian tissue cryopreservation represents a promising strategy to preserve the ovarian function in cancer patients. It is usually performed by slow freezing/rapid thawing (SF/RT). Recent studies emphasize an ultrarapid cryopreservation procedure, vitrification/warming (V/W), since it might prevent damages due to ice crystal formation. Comparative studies between the cryopreservation...

Background: Oocyte, embryo and ovarian tissue cryopreservation are proposed for fertility preservation to cancer patients who hope to be mothers after getting rid of the disease. Materials and Methods: Embryo cryopreservation is not possible for unmarried single girls without sperm partner and oocyte retrieval is a long time procedure. Thus ovarian tissue cryopreservation is suggested for ferti...

Ovarian cryopreservation followed by transplantation is one of the potential ways fertility can be preserved and endocrine function restored in women who are at risk for ovarian failure, early menopause, or loss of fertility. While much of the progress in this area has occurred in the past couple of decades, the concept of transplantation of reproductive organs has been present since the ninete...

Ovarian tissue cryopreservation and transplantation is a formof fertility preservation offered to youngwomenathigh riskof losing ovarian function after cancer treatment.While therehavebeen successful births resulting fromorthotopic site grafts,we report the first caseof an ongoing pregnancy from a heterotopic graft in a patient who had previously undergone bilateral oopherectomy for a granulosa...

For patients who are planning to have chemotherapy, radiotherapy or to undergo bilateral oophorectomy, loss of ovarian function will result in premature ovarian menopause and loss of fertility. For these women, although there is no successful method for the cryopreservation of human oocytes, ovarian tissue cryobanking is proposed with a view to its autotransplantation at a later date or the iso...

With the increase in survivorship following cancer for women in their reproductive years, as well as an increase in survivorship with childhood cancers, there is a demand for perfecting current fertility preservation methods and generating new options for patients who are unable to pursue the conventional course of fertility treatments. Cryopreservation using a slow-cooling method for embryos i...

Cryopreservation of avian ova and embryos is challenging because of the yolky structure of the egg. As an alternative, with the development of effective cryopreservation protocols, ovarian tissue cryopreservation could be used for cryobanking for birds. Pieces of ovarian tissue of week-old Japanese quail (Coturnix japonica) were frozen at 0.5 degrees C/min in a programmable freezer or vitrified...

BACKGROUND Cryopreservation of ovarian tissue can be used to preserve the fertility of patients who are about to receive treatment(s) that could compromise their future ovarian function. Here we evaluate the effectiveness of a vitrification protocol by carrying out a systematic comparison with a conventional slow-freezing method on human ovarian tissue. METHODS Human ovarian samples (mean age...

Cancer may be detected at any age and could affect children, and reproductive age women as well. In recent years, cancer treatment has become less destructive and more specific. As a result, survival rates and quality of life following successful treatment have continuously improved. Cancer treatment typically involves surgery, chemo- or radiation therapy, or the combinations of these. These in...