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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
1
|
pubmed:dateCreated |
1982-6-24
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pubmed:abstractText |
An oral load of L-tryptophan (490 mumol/kg) was administered to 25 men and 25 women between the ages of 30 and 80 years. Blood samples were drawn before the load and at 2-h intervals for 6 h after the load. Urine samples were collected for 5 days. Fasting serum tryptophan levels averaged 79.5 mumol/l (+/- 12.9 s.d.). Peak serum tryptophan levels (911-1002 mumol/l) occurred 2 h after the load. Urinary indican excretion on the day of the load averaged 6.4 mumol/24h/kg of body weight (+/- 2.8 s.d.). The concentration of tryptophan in serum, the amount of indican excreted in urine, and the indican:creatinine ratio in urine depended on the age of the subjects. The findings are discussed in relation to previous reports on effects of age on tryptophan pharmacokinetics.
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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 |
0378-7966
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:volume |
7
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
55-8
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pubmed:dateRevised |
2011-2-2
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pubmed:meshHeading |
pubmed-meshheading:6802644-Adult,
pubmed-meshheading:6802644-Aged,
pubmed-meshheading:6802644-Aging,
pubmed-meshheading:6802644-Creatinine,
pubmed-meshheading:6802644-Female,
pubmed-meshheading:6802644-Humans,
pubmed-meshheading:6802644-Indican,
pubmed-meshheading:6802644-Male,
pubmed-meshheading:6802644-Middle Aged,
pubmed-meshheading:6802644-Tryptophan
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pubmed:articleTitle |
Effects of age on serum tryptophan and urine indican in adults given a tryptophan load test.
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pubmed:publicationType |
Journal Article,
Research Support, Non-U.S. Gov't
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