| A chronologic review of mature oocyte vitrification research in cattle, pigs, and sheep. | |
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MedLine Citation:
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PMID: 22968034 Owner: NLM Status: Publisher |
Abstract/OtherAbstract:
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Vitrification as a means of cryopreservation has become a standard approach for oocytes from livestock. This paradigm shift occurred primarily as a result of the demonstration in 1996 that bovine oocytes are extremely susceptible to chilling injury. Since that early work, numerous devices have been used as supports for oocytes during so-called "ultra-rapid cooling", and occasionally, trials involving the deposition of small volumes of media containing oocytes directly into liquid nitrogen to facilitate cooling have been reported. Results reporting blastocyst development exceeding 10% are common, but variability remains high, and a standard method for bovine oocytes remains to be established. Oocytes from pigs are particularly difficult to cryopreserve, even with the use of ultrarapid cooling approaches. Few reports have demonstrated blastocyst development exceeding 5%. The application of hydrostatic pressure before vitrification appears to impart stress tolerance to porcine oocytes, as the results of some treatments have shown development to blastocysts at proportions >10%. Work on sheep oocyte vitrification is relatively new, and a few articles have reported blastocyst development at 10% or more. Messenger RNA levels are reportedly altered in sheep oocytes as a result of vitrification, and damage to the cytoskeleton is common across species. |
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Authors:
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S F Mullen; G M Fahy |
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Publication Detail:
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Type: JOURNAL ARTICLE Date: 2012-9-8 |
Journal Detail:
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Title: Theriogenology Volume: - ISSN: 1879-3231 ISO Abbreviation: Theriogenology Publication Date: 2012 Sep |
Date Detail:
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Created Date: 2012-9-12 Completed Date: - Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 0421510 Medline TA: Theriogenology Country: - |
Other Details:
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Languages: ENG Pagination: - Citation Subset: - |
Copyright Information:
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Copyright © 2012 Elsevier Inc. All rights reserved. |
Affiliation:
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The World Egg Bank, Phoenix, Arizona, USA. |
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From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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