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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
1
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pubmed:dateCreated |
1982-3-13
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pubmed:abstractText |
Previous studies have shown that the autosomal recessive gene brachymorphic (bm/bm), which is maintained on a C57BL/6J (C57) background, reduces limb growth and sulfation of cartilage proteoglycans. Hydrocortisone administered on gestational days 11-14 resulted in 20% CP in the C57 mouse, but 95% CP in the bm/bm mouse. The bm/bm mouse had a median effective dose for CP of 45 mg/kg, compared to 325 mg/kg for C57 and 40 mg/kg for A/J. Morphometric analysis indicated that the time of palatal elevation was delayed in the bm/bm relative to the C57 mouse both with and without hydrocortisone treatment. The amount of cytoplasmic glucocorticoid receptor protein present in the bm/bm palate on day 14 was the same as the amount found in the C57 palate, and was not elevated as it is in the A/J palate. The levels of cyclic AMP in the bm/bm palate on day 14 were 30-70% higher than that found in the C57 palate with or without hydrocortisone. These results suggest that both bm/bm and A/J exhibit a delay in palatal shelf rotation and elevated levels of cyclic AMP, which appear to be predisposing factors for cortisone-induced cleft palate. These strains differ in that elevated levels of steroid receptors are present in A/J palate, whereas lower levels are found in the C57 and bm/bm mice.
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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:issn |
0270-3211
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:volume |
1
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
15-23
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pubmed:dateRevised |
2003-11-14
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pubmed:meshHeading |
pubmed-meshheading:6119797-Animals,
pubmed-meshheading:6119797-Cleft Palate,
pubmed-meshheading:6119797-Cortisone,
pubmed-meshheading:6119797-Cyclic AMP,
pubmed-meshheading:6119797-Female,
pubmed-meshheading:6119797-Hydrocortisone,
pubmed-meshheading:6119797-Mice,
pubmed-meshheading:6119797-Mice, Inbred A,
pubmed-meshheading:6119797-Mice, Inbred C57BL,
pubmed-meshheading:6119797-Pregnancy,
pubmed-meshheading:6119797-Receptors, Glucocorticoid,
pubmed-meshheading:6119797-Species Specificity
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pubmed:year |
1980
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pubmed:articleTitle |
Cortisone-induced cleft palate in the brachymorphic mouse.
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pubmed:publicationType |
Journal Article
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