Cryopreservation of the Bovine Oocyte: Current Status and Perspectives
نویسندگان
چکیده
منابع مشابه
Cryopreservation of the bovine oocyte: current status and perspectives.
This review presents some of the most noticeable aspects related with the oocyte cryopreservation procedures, emphasizing their evolution in the bovine, which points towards the critical points determining the reduced survival rates of female gametes to freezing and vitrification. Factors such as the maturation status, the cytoskeleton and membrane sensitivity, the role of the cumulus cells, th...
متن کاملCryopreservation of bovine oocytes: current status and recent developments.
The cryopreservation of oocytes of most animal species remains a challenge due to their complex structure. Equilibrium freezing is not satisfactory because oocytes seem to be damaged by exposure for several minutes to temperatures near 0 degrees C. Therefore, cryopreservation of oocytes by vitrification--especially the use of very high cooling rates of oocytes suspended in extremely small volum...
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Down syndrome (DS) is a birth defect with huge medical and social costs, caused by trisomy of whole or part of chromosome 21. It is the most prevalent genetic disease worldwide and the common genetic cause of intellectual disabilities appearing in about 1 in 400-1500 newborns. Although the syndrome had been described thousands of years before, it was named after John Langdon Down who described ...
متن کاملOocyte cryopreservation.
OBJECTIVE To review historical and contemporary advances in oocyte-cryopreservation techniques and outcomes. DESIGN Publications related to oocyte cryopreservation were identified through MEDLINE and other bibliographic databases. CONCLUSION(S) Oocyte cryopreservation can be used as an adjunct to conventional IVF and as an option for fertile women to electively cryopreserve their gametes. R...
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within the components of communicative competence, a special emphasis is put on the “rules of politeness,” specifically the politeness strategies (brown and levinson, 1978) that speakers deploy when performing the request speech act. this is because the degree of imposition that making a request places upon one’s interlocutor(s) has been seen to be influenced by several factors among which, as ...
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ژورنال
عنوان ژورنال: Reproduction in Domestic Animals
سال: 2012
ISSN: 0936-6768
DOI: 10.1111/j.1439-0531.2012.02029.x