Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
3
pubmed:dateCreated
1989-6-16
pubmed:abstractText
Porcine follicular oocytes, collected from antral follicles (2-5 mm in diameter) of gilt ovaries, were matured in vitro with or without porcine follicular fluid (pFF), gonadotrophins (GTH) or fetal calf serum (FCS) for 48 hours at 37 degrees C under 5% CO2 in air, and their ability of male pronucleus (mPN) formation was examined after in vitro fertilization. Formation of mPN was observed in 38.6% of penetrated oocytes matured in modified Krebs-Ringer bicarbonate solution (TYH) 18 hours after insemination. The addition of GTH into the maturation medium did not improve the proportion of mPN-formed oocytes (20-30%). In contrast, the mPN formation rate elevated significantly (59.5%) when the oocytes were cultured with pFF, and the addition of follicle-stimulating hormone (FSH) enhanced this pFF action (the rate became 81.0%). In the presence of FSH, significant pFF effect was observable at the concentration of 5%, and its efficiency was elevated with the increase of pFF concentration. When the oocytes were matured with FCS, the mPN formation rate was unchanged or decreased rather than improved (0-25%). These results suggest that pFF, but not FCS, have substance(s) stimulating the ability of mPN formation in porcine oocytes.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Nov
pubmed:issn
0148-7280
pubmed:author
pubmed:issnType
Print
pubmed:volume
21
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
289-95
pubmed:dateRevised
2006-11-15
pubmed:meshHeading
pubmed:year
1988
pubmed:articleTitle
Effects of porcine follicular fluid on male pronucleus formation in porcine oocytes matured in vitro.
pubmed:affiliation
School of Veterinary Medicine and Animal Sciences, Kitasato University, Tokyo, Japan.
pubmed:publicationType
Journal Article, In Vitro, Research Support, Non-U.S. Gov't