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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
3
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pubmed:dateCreated |
1997-4-24
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pubmed:abstractText |
Previously, we demonstrated elevated cortisol production/release in response to the administration of the serotonin precursor, L-5-hydroxytryptophan (L-5-HTP) in untreated patients with obstructive sleep apnea (OSA). We hypothesized that if this elevated cortisol response to L-5-HTP was related to OSA, this finding would not be present in OSA patients treated with nasal continuous positive airway pressure (nCPAP). Eleven OSA patients treated for at least 1 month with nCPAP were studied. On two different days, we measured blood cortisol level every 15 min for 4 h following the ingestion of L-5-HTP, 0.4 mg/kg, or placebo, both given with carbidopa, a peripheral tryptophan decarboxylase inhibitor, used to prevent peripheral L-5-HTP metabolism before brain absorption. For a given subject, the cortisol response was calculated as the difference between the area under the curve of the L-5-HTP and placebo responses. In the nCPAP-treated OSA patients, this net cortisol response, 577 +/- 240 min.micrograms/dL, was less than the value found in the previously studied untreated OSA group, 1,198 +/- 227 min.micrograms/dL (p < 0.05) and not different from the previously studied nonapneic control group, 469 +/- 154 min.micrograms/dL. From these results, we speculate that nCPAP treatment reverses the elevated cortisol response to serotonergic stimulation seen in untreated OSA patients.
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pubmed:grant | |
pubmed:language |
eng
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pubmed:journal | |
pubmed:citationSubset |
AIM
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pubmed:chemical |
http://linkedlifedata.com/resource/pubmed/chemical/5-Hydroxytryptophan,
http://linkedlifedata.com/resource/pubmed/chemical/Aromatic-L-Amino-Acid Decarboxylases,
http://linkedlifedata.com/resource/pubmed/chemical/Carbidopa,
http://linkedlifedata.com/resource/pubmed/chemical/Enzyme Inhibitors,
http://linkedlifedata.com/resource/pubmed/chemical/Hydrocortisone,
http://linkedlifedata.com/resource/pubmed/chemical/Serotonin
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pubmed:status |
MEDLINE
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pubmed:month |
Mar
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pubmed:issn |
0012-3692
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:volume |
111
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
632-8
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pubmed:dateRevised |
2007-11-14
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pubmed:meshHeading |
pubmed-meshheading:9118699-5-Hydroxytryptophan,
pubmed-meshheading:9118699-Adult,
pubmed-meshheading:9118699-Aromatic-L-Amino-Acid Decarboxylases,
pubmed-meshheading:9118699-Carbidopa,
pubmed-meshheading:9118699-Enzyme Inhibitors,
pubmed-meshheading:9118699-Female,
pubmed-meshheading:9118699-Humans,
pubmed-meshheading:9118699-Hydrocortisone,
pubmed-meshheading:9118699-Male,
pubmed-meshheading:9118699-Middle Aged,
pubmed-meshheading:9118699-Positive-Pressure Respiration,
pubmed-meshheading:9118699-Radioimmunoassay,
pubmed-meshheading:9118699-Serotonin,
pubmed-meshheading:9118699-Sleep Apnea Syndromes
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pubmed:year |
1997
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pubmed:articleTitle |
Serotonin-induced cortisol release in CPAP-treated obstructive sleep apnea patients.
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pubmed:affiliation |
Department of Medicine, MetroHealth Medical Center, Cleveland, OH 44109-1998, USA.
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pubmed:publicationType |
Journal Article,
Clinical Trial,
Research Support, U.S. Gov't, P.H.S.,
Controlled Clinical Trial
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