Linked Life Data

2544345

Source:http://linkedlifedata.com/resource/pubmed/id/2544345

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
6
pubmed:dateCreated
1989-7-31
pubmed:abstractText
1. Although the opiate antagonist naloxone has been shown to affect sympathoadrenomedullary function in some studies, this has not been a uniform finding in all investigations, using different doses of naloxone. We have therefore investigated the actions of saline placebo and increasing bolus doses of intravenous naloxone (25, 100 and 250 micrograms/kg) on the plasma noradrenaline, adrenaline, adrenocorticotrophin (ACTH) and cortisol responses to a cold-pressor test in six males and two females in a double-blind randomized study. 2. Basal levels of adrenaline did not differ on any of the study occasions: the cold-pressor stimulus produced a significant rise in mean plasma adrenaline to a peak of 0.16 nmol/l, with a peak incremental rise of 0.08 nmol/l. In the presence of the two higher doses of naloxone, the incremental rise in the mean adrenaline level was significantly enhanced, reaching 0.30 nmol/l at 100 micrograms of naloxone/kg and 0.29 nmol/l at 250 micrograms of naloxone/kg, with no significant enhancement observed at the lowest dose of naloxone. The rise in plasma noradrenaline, systolic and diastolic blood pressure and pulse rate during the cold-pressor test was not consistently altered by any dose of naloxone, but there was a significant trend for the degree of discomfort to increase with the dose of naloxone. 3. Neither plasma ACTH nor serum cortisol rose in response to the cold-pressor stimulus.(ABSTRACT TRUNCATED AT 250 WORDS)
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Jun
pubmed:issn
0143-5221
pubmed:author
pubmed:issnType
Print
pubmed:volume
76
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
625-30
pubmed:dateRevised
2007-11-15
pubmed:meshHeading
pubmed:year
1989
pubmed:articleTitle
Differential effect of high-dose naloxone on the plasma adrenaline response to the cold-pressor test.
pubmed:affiliation
Department of Endocrinology, St Bartholomew's Hospital, London.
pubmed:publicationType
Journal Article, Clinical Trial, Randomized Controlled Trial