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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
2
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pubmed:dateCreated |
1981-4-21
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pubmed:abstractText |
Neonatal exposure of rats to cortisol acetate was found to alter pituitary-adrenal feedback regulation at 20-25 days of age. Plasma levels of adrenocorticotrophin (ACTH) after ether stress were reduced in cortisol-treated rats pre-treated with 100 microgram corticosterone/100 g body weight, while rats given vehicle neonatally did not show suppression of the ACTH response below levels in animals given saline only or not injected as pre-treatments. Neonatal cortisol increased sensitivity to dexamethasone in inhibition of the stress response; cortisol-treated animals had a reduced plasma corticosterone response to stress 3 h after pre-treatment with 1.25, 2.5, 25, or 250 microgram dexamethasone/100 g body weight, while the stress response in animals given vehicle neonatally was not inhibited by the lowest dosage of dexamethasone. Neonatal cortisol treatment did not affect corticosteroid-binding globulin (CBG) binding capacity in plasma of 25-day-old animals. Thus, neonatal treatment with cortisol appears to increase feedback sensitivity to circulating corticosteroids at 20-25 days of age.
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pubmed:grant | |
pubmed:language |
eng
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pubmed:journal | |
pubmed:citationSubset |
IM
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pubmed:chemical |
http://linkedlifedata.com/resource/pubmed/chemical/Adrenocorticotropic Hormone,
http://linkedlifedata.com/resource/pubmed/chemical/Corticosterone,
http://linkedlifedata.com/resource/pubmed/chemical/Dexamethasone,
http://linkedlifedata.com/resource/pubmed/chemical/Hydrocortisone,
http://linkedlifedata.com/resource/pubmed/chemical/Transcortin
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pubmed:status |
MEDLINE
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pubmed:month |
Feb
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pubmed:issn |
0001-5598
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:volume |
96
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
252-7
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pubmed:dateRevised |
2007-11-14
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pubmed:meshHeading |
pubmed-meshheading:6258372-Adrenocorticotropic Hormone,
pubmed-meshheading:6258372-Animals,
pubmed-meshheading:6258372-Animals, Newborn,
pubmed-meshheading:6258372-Corticosterone,
pubmed-meshheading:6258372-Dexamethasone,
pubmed-meshheading:6258372-Feedback,
pubmed-meshheading:6258372-Hydrocortisone,
pubmed-meshheading:6258372-Pituitary-Adrenal System,
pubmed-meshheading:6258372-Rats,
pubmed-meshheading:6258372-Transcortin
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pubmed:year |
1981
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pubmed:articleTitle |
Modification of pituitary-adrenal feedback sensitivity in young rats by neonatal treatment with cortisol.
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pubmed:publicationType |
Journal Article,
Research Support, U.S. Gov't, P.H.S.,
Research Support, U.S. Gov't, Non-P.H.S.
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