Linked Life Data

7912841

Source:http://linkedlifedata.com/resource/pubmed/id/7912841

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
1
pubmed:dateCreated
1994-8-2
pubmed:abstractText
The role of endogenous opioids in respiratory control in the pentobarbital anaesthetised rat was investigated using a rebreathing technique to generate a progressively increasing hypercapnic stimulus to the respiratory centers following administration of an opioid antagonist or agonist. Respiratory output was measured by intraesophageal pressure (IEP) changes, and a ventilatory equivalent (VEq) was calculated by multiplying IEP by respiratory rate (mmHg.min-1). A non-selective opioid antagonist, naloxone (0.4 mg/kg i.v.), significantly enhanced the slope of the CO2 response curve for VEq (20 +/- 3 mmHg.min-1.%CO2-1) compared with the control (14 +/- 2 mmHg.min-1.%CO2(-1)) (P < 0.05; n = 14). A similar enhancement of the hypercapnic response by naloxone was found in rats anaesthetised with urethane (n = 5). The mu receptor agonist dermorphin (1 mg/kg i.v.) significantly depressed the slope of the CO2 response curve for IEP (-0.01 +/- 0.03) compared with the control (0.10 +/- 0.03) in pentobarbital anaesthetised rats (P < 0.05; n = 5) but had no significant effect on respiratory rate. These results suggest a role of endogenous opioids in the modulation of respiration during hypercapnia.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Apr
pubmed:issn
0034-5687
pubmed:author
pubmed:issnType
Print
pubmed:volume
96
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
13-24
pubmed:dateRevised
2009-11-11
pubmed:meshHeading
pubmed:year
1994
pubmed:articleTitle
Endogenous opioid modulation of hypercapnic-stimulated respiration in the rat.
pubmed:affiliation
School of Biological Sciences, Victoria University of Wellington, New Zealand.
pubmed:publicationType
Journal Article