Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
7
pubmed:dateCreated
1992-8-12
pubmed:abstractText
Some depressed patients have been shown to excrete abnormal amounts of catecholamines and their metabolites in urine. Some studies suggest that hypersecretion of epinephrine by the adrenals and of norepinephrine by the peripheral sympathetic system cause increased excretion of urinary catecholamines and their metabolites in a subgroup of patients. To evaluate the effect of increased catecholamine levels in the peripheral circulation on urinary catecholamine and metabolite levels, we infused healthy volunteers during 6 hours with epinephrine, norepinephrine, or placebo, respectively, in a three-period, double-blind, crossover design. The results indicate that (1) urinary epinephrine and norepinephrine levels were the most sensitive indicators of increased circulating epinephrine and norepinephrine levels, respectively; (2) changes in circulating epinephrine or norepinephrine levels were not readily reflected in changes in urinary vanillylmandelic acid or 3-methoxy-4-hydroxyphenylglycol levels; and (3) increased normetanephrine excretion was not only induced by infusion of norepinephrine but also by epinephrine. This last finding may be due to activation of the sympathetic nervous system by circulating epinephrine. These results may help to explain the mechanism of adrenal epinephrine and sympathetic nervous system norepinephrine hypersecretion observed in subgroups of depressed patients.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
AIM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Jul
pubmed:issn
0003-990X
pubmed:author
pubmed:issnType
Print
pubmed:volume
49
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
568-72
pubmed:dateRevised
2006-11-15
pubmed:meshHeading
pubmed:year
1992
pubmed:articleTitle
Urinary excretion of catecholamines and their metabolites in relation to circulating catecholamines. Six-hour infusion of epinephrine and norepinephrine in healthy volunteers.
pubmed:affiliation
Department of Psychiatry, University Hospital Rotterdam-Dijkzigt, The Netherlands.
pubmed:publicationType
Journal Article, Clinical Trial, Controlled Clinical Trial, Research Support, Non-U.S. Gov't