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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
24
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pubmed:dateCreated |
1991-4-4
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pubmed:abstractText |
We found a dose-dependent inhibition of spontaneous and LPS-induced IL-1 production of isolated human monocytes by methylprednisolone (MP) in vitro. Kinetic studies of spontaneous and LPS-induced IL-1 production of isolated monocytes of 10 normal individuals showed a synchronous circadian rhythm, with its maximum at 4:00 p.m. and its minimum at 4:00 a.m., which is most probably independent of the physiological circadian rhythm of cortisol levels because the IL-1 production was of the same value at the times of maximum and minimum cortisol levels. In contrast, in a patient with hypercortisolism and a preserved circadian rhythm of cortisol levels, we found the minimum of IL-1 production at 4:00 p.m., 8 hours after the maximum cortisol level was reached. Furthermore, in 7 patients with sarcoidosis both spontaneous and LPS-induced IL-1 production of isolated monocytes were significantly decreased 8 hours after the first injection of MP (1 mg/kg bw i.v.) compared to the values before MP administration. Our findings suggest a physiological circadian rhythm of spontaneous and LPS-induced IL-1 production of monocytes, independent of physiological cortisol levels, whereas unphysiological amounts of endogenous and exogenous glucocorticoids cause a substantial inhibition of IL-1 production with a latency time of 8 hours.
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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:month |
Dec
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pubmed:issn |
0023-2173
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:day |
17
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pubmed:volume |
68
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
1217-21
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pubmed:dateRevised |
2004-11-17
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pubmed:meshHeading |
pubmed-meshheading:2290308-Adult,
pubmed-meshheading:2290308-Cells, Cultured,
pubmed-meshheading:2290308-Circadian Rhythm,
pubmed-meshheading:2290308-Female,
pubmed-meshheading:2290308-Humans,
pubmed-meshheading:2290308-Hydrocortisone,
pubmed-meshheading:2290308-Interleukin-1,
pubmed-meshheading:2290308-Lipopolysaccharides,
pubmed-meshheading:2290308-Male,
pubmed-meshheading:2290308-Methylprednisolone,
pubmed-meshheading:2290308-Monocytes,
pubmed-meshheading:2290308-Sarcoidosis
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pubmed:year |
1990
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pubmed:articleTitle |
Circadian rhythm of interleukin-1 production of monocytes and the influence of endogenous and exogenous glucocorticoids in man.
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pubmed:affiliation |
Medizinische Klinik, Forschungsinstitut Borstel.
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pubmed:publicationType |
Journal Article
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