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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
9
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pubmed:dateCreated |
1990-9-14
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pubmed:abstractText |
We investigated serum neopterin, tryptophan, and kynurenine concentrations in 23 HIV-1 seropositive patients (Walter Reed Stage 4-6). Ten patients presented with polyneuropathy and three with dementia, one of the patients with dementia also had polyneuropathy and dementia. We found significant associations between lower trytophan concentrations and neurologic/psychiatric symptoms. The negative correlation of tryptophan with kynurenine and neopterin concentrations indicates activity of indoleamine 2,3-dioxygenase (IDO) in patients. IDO can be induced by cytokines such as interferon-gamma and therefore low tryptophan levels may result from chronic immune stimulation in HIV-1 seropositives.
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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 |
0894-9255
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:volume |
3
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
873-6
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pubmed:dateRevised |
2004-11-17
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pubmed:meshHeading |
pubmed-meshheading:2166783-Acquired Immunodeficiency Syndrome,
pubmed-meshheading:2166783-Adult,
pubmed-meshheading:2166783-Biopterin,
pubmed-meshheading:2166783-Dementia,
pubmed-meshheading:2166783-Humans,
pubmed-meshheading:2166783-Kynurenine,
pubmed-meshheading:2166783-Male,
pubmed-meshheading:2166783-Middle Aged,
pubmed-meshheading:2166783-Neopterin,
pubmed-meshheading:2166783-Peripheral Nervous System Diseases,
pubmed-meshheading:2166783-Tryptophan
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pubmed:year |
1990
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pubmed:articleTitle |
Decreased serum tryptophan in patients with HIV-1 infection correlates with increased serum neopterin and with neurologic/psychiatric symptoms.
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pubmed:affiliation |
Institute of Medical Chemistry and Biochemistry, University of Innsbruck, Austria.
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pubmed:publicationType |
Journal Article
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