Linked Life Data

8080926

Source:http://linkedlifedata.com/resource/pubmed/id/8080926

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
6
pubmed:dateCreated
1994-10-10
pubmed:abstractText
The timing of pronuclear formation and the initiation and duration of the DNA synthetic period (S-phase) were determined during the first cell cycle of electrically activated ovine oocytes matured in vivo. Reconstructed embryos were produced by electro-fusion-mediated nuclear transfer of unsynchronized single blastomeres. These were derived from embryos produced in vivo at the 16-cell stage (Day 4) and transferred to enucleated metaphase II oocytes at the time of activation or to enucleated activated oocytes during early, mid, and late stages of the presumptive S-phase. The frequency of development to blastocyst was greatest in embryos reconstructed during the presumptive S-phase of enucleated activated oocytes than in embryos reconstructed at the time of activation (mean 55.4% vs. 21.3%). No significant differences were observed when embryos were reconstructed during early, mid, or late stages of the presumptive S-phase (61.3%, 45.7%, and 57.7%, respectively). The results indicate that the use of enucleated activated oocytes as cytoplasts for embryo reconstruction can increase the frequency of development to blastocyst of embryos reconstructed from unsynchronized donor blastomeres.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Jun
pubmed:issn
0006-3363
pubmed:author
pubmed:issnType
Print
pubmed:volume
50
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
1385-93
pubmed:dateRevised
2006-11-15
pubmed:meshHeading
pubmed:year
1994
pubmed:articleTitle
Improved development to blastocyst of ovine nuclear transfer embryos reconstructed during the presumptive S-phase of enucleated activated oocytes.
pubmed:affiliation
AFRC Roslin Institute, Roslin, Midlothian, United Kingdom.
pubmed:publicationType
Journal Article