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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
5
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pubmed:dateCreated |
1993-12-6
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pubmed:abstractText |
Levels of the excitotoxin quinolinic acid (QUIN) were measured in the cerebrospinal fluid of infants and children with congenital hyperammonemia. Twofold to tenfold elevations of QUIN were found in 4 neonates in hyperammonemic coma (QUIN range, 250-990 nM; control mean, 110 +/- 90 nM; p < 0.005). Similar elevations of neopterin were found (range, 24-75 nM; control mean, 9.0 +/- 4.9 nM; p < 0.005). In addition, significant elevations of QUIN were found in 14 older children with congenital hyperammonemia (mean, 50 +/- 20 vs 17 +/- 6 nM; p < 0.05). Neopterin levels were not elevated in these children. The QUIN may originate from an increase in tryptophan transport across the blood-brain barrier or from induction of indolamine-2,3-dioxygenase activity. These findings support a role for QUIN in the neuropathology of congenital hyperammonemia. They also suggest the potential utility of N-methyl-D-aspartate receptor-blocking agents or inhibitors of QUIN synthesis in the treatment of hyperammonemic coma.
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pubmed:grant | |
pubmed:language |
eng
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pubmed:journal | |
pubmed:citationSubset |
IM
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pubmed:chemical |
http://linkedlifedata.com/resource/pubmed/chemical/Ammonia,
http://linkedlifedata.com/resource/pubmed/chemical/Biogenic Amines,
http://linkedlifedata.com/resource/pubmed/chemical/Biopterin,
http://linkedlifedata.com/resource/pubmed/chemical/Hydroxyindoleacetic Acid,
http://linkedlifedata.com/resource/pubmed/chemical/Neopterin,
http://linkedlifedata.com/resource/pubmed/chemical/Quinolinic Acid
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pubmed:status |
MEDLINE
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pubmed:month |
Nov
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pubmed:issn |
0364-5134
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:volume |
34
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
676-81
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pubmed:dateRevised |
2007-11-14
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pubmed:meshHeading |
pubmed-meshheading:7694541-Ammonia,
pubmed-meshheading:7694541-Biogenic Amines,
pubmed-meshheading:7694541-Biopterin,
pubmed-meshheading:7694541-Child, Preschool,
pubmed-meshheading:7694541-Coma,
pubmed-meshheading:7694541-Humans,
pubmed-meshheading:7694541-Hydroxyindoleacetic Acid,
pubmed-meshheading:7694541-Infant,
pubmed-meshheading:7694541-Infant, Newborn,
pubmed-meshheading:7694541-Metabolism, Inborn Errors,
pubmed-meshheading:7694541-Neopterin,
pubmed-meshheading:7694541-Quinolinic Acid
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pubmed:year |
1993
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pubmed:articleTitle |
Quinolinic acid in children with congenital hyperammonemia.
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pubmed:affiliation |
Children's Seashore House, Philadelphia, PA 19104.
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pubmed:publicationType |
Journal Article,
Research Support, U.S. Gov't, P.H.S.,
Research Support, Non-U.S. Gov't
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