Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
2
pubmed:dateCreated
1988-11-22
pubmed:abstractText
We examined the response of five ponies with recurrent airway obstruction (principals) and five age- and gender-matched controls to the aerosol alpha-adrenergic agonist phenylephrine after blockade with propranolol and atropine. Measurements were made with principal ponies in clinical remission (period A) and during acute airway obstruction (period B). The blockade had no effect on base-line pulmonary mechanics in control ponies during periods A and B or in the principal ponies during period A. However, in the principal ponies during period B, blockade increased dynamic compliance (Cdyn) and decreased pulmonary resistance (RL). Phenylephrine had no effect on the controls during either period. In the principals, phenylephrine decreased Cdyn and increased RL during both periods. The alpha 1-agonist aerosol prazosin shifted the phenylephrine dose-response curves to the right, but prasozin did not bronchodilate the principals during period B. This suggests that the role of alpha 1-adrenergic receptors in airway narrowing in ponies with recurrent airway obstruction is minimal. However, the response to phenylephrine in only the principal ponies suggests an increase in alpha-receptor numbers and/or activity in these animals compared with controls.
pubmed:grant
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Aug
pubmed:issn
8750-7587
pubmed:author
pubmed:issnType
Print
pubmed:volume
65
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
687-92
pubmed:dateRevised
2007-11-14
pubmed:meshHeading
pubmed:year
1988
pubmed:articleTitle
Alpha 1-adrenergic-induced airway obstruction in ponies with recurrent pulmonary disease.
pubmed:affiliation
Pulmonary Laboratory, College of Veterinary Medicine, Michigan State University, East Lansing 48824.
pubmed:publicationType
Journal Article, Research Support, U.S. Gov't, P.H.S., Research Support, Non-U.S. Gov't