Linked Life Data

8607001

Source:http://linkedlifedata.com/resource/pubmed/id/8607001

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
3
pubmed:dateCreated
1996-5-21
pubmed:abstractText
The effects of various neurochemicals were examined in intact, unanesthetized rainbow trout (Oncorhynchus mykiss) to assess the role of branchial O2-sensitive chemoreceptors in the cardio-ventilatory responses to exogenous neurochemicals. cyanide stimulated ventilation and elicited bradycardia when give externally but only stimulated ventilation when injected internally. Norepinephrine increased heart rate, blood pressure and ventilatory rate but opercular pressure was not affect. Dopamine had no effect on either heart or ventilatory rate but increased blood pressure and decreased opercular pressure. Serotonin stimulated heart rate and ventilation but decreased blood pressure. Acetylcholine and nicotine stimulated all cardio-ventilatory variables. Muscarine decreased heart rate and blood pressure and had a biphasic effect on ventilation. These results, combined with the results from the preceding study, suggest that the cardio-ventilatory effects of exogenously administered (1) cyanide are entirely mediated by gill O2 receptors, (2) serotonin, and cholinergic drugs could be partly mediated by O2 receptors and (3) catecholaminergic drugs are not mediated by O2 receptors.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Sep
pubmed:issn
0034-5687
pubmed:author
pubmed:issnType
Print
pubmed:volume
101
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
289-99
pubmed:dateRevised
2009-11-11
pubmed:meshHeading
pubmed:year
1995
pubmed:articleTitle
Cardio-ventilatory control in rainbow trout: II. Reflex effects of exogenous neurochemicals.
pubmed:affiliation
Department of Zoology, University of British Columbia, Vancouver, Canada.
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't