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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
3
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pubmed:dateCreated |
1983-10-28
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pubmed:abstractText |
Two patients in hepatic coma were treated with L-dopa. The first patient showed clear clinical improvement, but the second patient did not. Analyses of urinary metabolites indicated that L-dopa was not absorbed by the second patient. There was evidence that L-dopa had the following beneficial effects in the first patient: (1) increased production of urine, which could have been accompanied by increased excretion of toxins; (2) displacement of tyramine from transmitter sites (because increased excretion of p-hydroxyphenylacetic acid, a major metabolite of tyramine, occurred during L-dopa treatment in patient 1); (3) replenishment of dopamine, and to a much lesser extent, norepinephrine, at central or peripheral neuroeffector junctions; and (4) scavenging of methyl groups by L-dopa, because ratio of methylated amines to catecholamines was higher than normal in both comatose patients before L-dopa treatment, and this ratio decreased during L-dopa treatment in patient 1.
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pubmed:grant | |
pubmed:language |
eng
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pubmed:journal | |
pubmed:citationSubset |
AIM
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pubmed:chemical | |
pubmed:status |
MEDLINE
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pubmed:month |
Sep
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pubmed:issn |
0009-9236
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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 |
390-8
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pubmed:dateRevised |
2007-11-14
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pubmed:meshHeading |
pubmed-meshheading:6883916-Dopamine,
pubmed-meshheading:6883916-Dose-Response Relationship, Drug,
pubmed-meshheading:6883916-Electroencephalography,
pubmed-meshheading:6883916-Female,
pubmed-meshheading:6883916-Hepatic Encephalopathy,
pubmed-meshheading:6883916-Humans,
pubmed-meshheading:6883916-Levodopa,
pubmed-meshheading:6883916-Male,
pubmed-meshheading:6883916-Middle Aged,
pubmed-meshheading:6883916-Norepinephrine,
pubmed-meshheading:6883916-Urination
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pubmed:year |
1983
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pubmed:articleTitle |
Excretion of amines and their metabolites by two patients in hepatic coma treated with L-dopa.
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pubmed:publicationType |
Journal Article,
Research Support, U.S. Gov't, P.H.S.,
Case Reports
|