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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
3
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pubmed:dateCreated |
1998-4-2
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pubmed:abstractText |
Sea urchin spermatozoa were injected into mature mouse oocytes to determine whether they can activate mouse oocytes and, if so, how they behave within the oocyte cytoplasm of such a distant species. While injection of a single spermatozoon into each oocyte did not activate any of the oocytes, injection of 10 spermatozoa activated about 20%. Within the cytoplasm of unactivated oocytes, sperm heads commonly transformed into chromosome-like structures. When a single spermatozoon was injected, and oocytes were then activated by Sr2+, about 30% of the activated oocytes had both female (mouse) and male (sea urchin) pronuclei when examined 8 h after sperm injection. These results indicated that sperm-borne oocyte activating factor(s) and the cytoplasmic factors controlling the development of the sperm pronucleus are not strictly species-specific.
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pubmed:grant | |
pubmed:language |
eng
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pubmed:journal | |
pubmed:citationSubset |
IM
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pubmed:chemical | |
pubmed:status |
MEDLINE
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pubmed:month |
Aug
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pubmed:issn |
0967-1994
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:volume |
5
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
229-34
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pubmed:dateRevised |
2007-11-14
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pubmed:meshHeading |
pubmed-meshheading:9460907-Animals,
pubmed-meshheading:9460907-Cytoplasm,
pubmed-meshheading:9460907-Female,
pubmed-meshheading:9460907-Gonadotropin-Releasing Hormone,
pubmed-meshheading:9460907-Male,
pubmed-meshheading:9460907-Mice,
pubmed-meshheading:9460907-Microinjections,
pubmed-meshheading:9460907-Oocytes,
pubmed-meshheading:9460907-Sea Urchins,
pubmed-meshheading:9460907-Sperm-Ovum Interactions,
pubmed-meshheading:9460907-Spermatozoa,
pubmed-meshheading:9460907-Strontium
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pubmed:year |
1997
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pubmed:articleTitle |
The response of mouse oocytes injected with sea urchin spermatozoa.
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pubmed:affiliation |
University of Hawaii School of Medicine, Honolulu 96822, USA.
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pubmed:publicationType |
Journal Article,
Research Support, U.S. Gov't, P.H.S.,
Research Support, Non-U.S. Gov't
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