Ad
related to: oocyte cryopreservation damage
Search results
Results From The WOW.Com Content Network
Oocyte cryopreservation is a procedure to preserve a woman's eggs . The technique is often used to delay pregnancy . At the time pregnancy is desired, the eggs can be thawed, fertilized, and transferred to the uterus as embryos .
Semen, embryos, oocytes, somatic cells, nuclear DNA, and other types of biomaterial such as blood and serum can be stored using cryopreservation, in order to preserve genetic materials. [ 3 ] [ 4 ] The primary benefit of cryoconservation is the ability to save germplasms for extended periods of time, therefore maintaining the genetic diversity ...
Human oocyte cryopreservation is a new technology in which a woman's eggs are extracted, frozen and stored. Later, when she is ready to become pregnant, the eggs can be thawed, fertilized, and transferred to the uterus as embryos .
Ideally, the artificial ovary should contain follicles or oocytes obtained from ovarian tissue cryopreservation, as well as other ovarian cells to provide growth factors. [3] Isolated follicles are then transplanted (either at the normal site of the ovary or elsewhere in the body) in a delivery scaffold. [ 4 ]
The same study found that, of 65 patients referred to the program, 28% declined to undergo embryo, oocyte, or tissue cryopreservation. 9% were found not to be eligible for medical reasons. Of the remaining 41 patients, 85% chose to cryopreserve embryos, 10% chose to cryopreserve oocytes, and 5% chose to undergo ovarian tissue freezing. [9]
Transvaginal oocyte retrieval is more properly referred to as transvaginal ovum retrieval when the oocytes have matured into ova, as is normally the case in IVF. It can be also performed for egg donation , oocyte cryopreservation and other assisted reproduction technology such as ICSI .
The main techniques used for embryo cryopreservation are vitrification versus slow programmable freezing (SPF). Studies indicate that vitrification is superior or equal to SPF in terms of survival and implantation rates. [2] Vitrification appears to result in decreased risk of DNA damage than slow freezing. [3]
Oocyte cryopreservation is a preservative process which can be used as a way of preserving fertility in children treated for childhood or adolescent cancer, and to avoid the damage caused to the ovaries caused by cytotoxic drugs often used in chemotherapy. [20]