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rdf:type | |
lifeskim:mentions | |
pubmed:dateCreated |
1986-2-7
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pubmed:abstractText |
A study of blood and urinary clearance of prednisone after ingestion of a 25 mg/m2 body surface test-dose, at 8 AM, was undertaken in 20 children treated for 18 months with prednisone after renal transplant. Results show important variability between patients: the elimination half life was 2.70 +/- 0.78 hr.; Tmax time to reach Cmax was 2.10 +/- 1.08 hr.; Maximal concentration (Cmax) was 474 +/- 153 ng/ml. With respect to the dose of steroid administered, the urinary excretion of corticosteroids: 17-hydroxycorticosteroids was 12.9 +/- 7.4% and that of unchanged prednisolone 2.8 +/- 3.1%. This level was essentially achieved in the 6 first hours: 55.4 +/- 16.2% for 17-OH steroids and 87.2 +/- 14.3% for prednisolone. Two points emerge from this study: (a) Renal failure slows urinary excretion of prednisone and its metabolites, making a reduction in the doses of corticosteroids necessary at certain doses. (b) The association prednisone-phenobarbital changes the blood kinetics (excretion is faster) without a clear change in 17-OH steroid and prednisolone urinary excretion. It is associated with a decrease in graft tolerance. The kinetic changes do not seem to be the only factors implicated in the decreased therapeutic response.
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pubmed:language |
fre
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pubmed:journal | |
pubmed:citationSubset |
IM
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pubmed:chemical | |
pubmed:status |
MEDLINE
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pubmed:issn |
0003-9764
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:volume |
42 Suppl 1
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
639-44
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pubmed:dateRevised |
2006-11-15
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pubmed:meshHeading |
pubmed-meshheading:3909980-Administration, Oral,
pubmed-meshheading:3909980-Adolescent,
pubmed-meshheading:3909980-Adult,
pubmed-meshheading:3909980-Child,
pubmed-meshheading:3909980-Creatinine,
pubmed-meshheading:3909980-Drug Interactions,
pubmed-meshheading:3909980-Female,
pubmed-meshheading:3909980-Graft Rejection,
pubmed-meshheading:3909980-Humans,
pubmed-meshheading:3909980-Kidney Failure, Chronic,
pubmed-meshheading:3909980-Kidney Transplantation,
pubmed-meshheading:3909980-Kinetics,
pubmed-meshheading:3909980-Male,
pubmed-meshheading:3909980-Phenobarbital,
pubmed-meshheading:3909980-Postoperative Period,
pubmed-meshheading:3909980-Prednisone
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pubmed:articleTitle |
[Pharmacokinetics of prednisone after oral administration in children with renal grafts. Changes induced by phenobarbital and renal insufficiency].
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pubmed:publicationType |
Journal Article,
English Abstract
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