The involvement of histaminic and muscarinic receptors in the bronchoconstriction induced by myorelaxant administration in sensitized rabbits

Habre, Walid, Adamicza, Ágnes, Lele, Enikõ, Novak, Tímea, Sly, Peter D. and Petak, Ferenc (2008) The involvement of histaminic and muscarinic receptors in the bronchoconstriction induced by myorelaxant administration in sensitized rabbits. Anesthesia And Analgesia, 107 6: 1899-1906. doi:10.1213/ane.0b013e318186587c


Author Habre, Walid
Adamicza, Ágnes
Lele, Enikõ
Novak, Tímea
Sly, Peter D.
Petak, Ferenc
Title The involvement of histaminic and muscarinic receptors in the bronchoconstriction induced by myorelaxant administration in sensitized rabbits
Journal name Anesthesia And Analgesia   Check publisher's open access policy
ISSN 0003-2999
1526-7598
Publication date 2008-12
Sub-type Article (original research)
DOI 10.1213/ane.0b013e318186587c
Volume 107
Issue 6
Start page 1899
End page 1906
Total pages 8
Place of publication Baltimore, MD, United States
Publisher Lippincott Williams & Wilkins
Language eng
Abstract BACKGROUND: Muscle relaxants cause bronchospasm via histamine release and/or by acting on the muscarinic receptors; we sought to characterize the respective importance of these pathways in the presence of bronchial hyperreactivity. METHODS: Ovalbumin-sensitized rabbits were randomly assigned to several protocol groups: Group C comprised untreated animals; in the other three groups, either H1 and H2 histaminic receptor blockade was performed, leaving the M1, M2, and M3 muscarinic receptors functional (Group M123), or combining this treatment with M3 muscarinic receptor blockade (Group M12), or with vagotomy (Group M3). Respiratory system impedance was measured over a 90-s period, during which succinylcholine, mivacurium or atracurium was administered. To monitor the changes in lung mechanics, respiratory system impedance was averaged in a 2-s time window and fitted by a model featuring airway resistance and inertance and tissue damping and elastance. RESULTS: The peak increases in airway resistance in Group C were greatest with succinylcholine (79 ± 17[SE]%) and mivacurium administration (75% ± 12%), whereas they were lower after attracurium (40% ± 11%). These changes were markedly attenuated by both histamine and muscarinic receptor blockade with the largest reduction in Group M3 for succinylcholine (14% ± 5.2%), and in Group M123 for mivacurium (5.1% ± 9.1%) and attracurium (7.8% ± 4.0%). DISCUSSION: Although the bronchospasm developing in the allergic airways after muscle relaxants is mediated primarily by the histaminic pathway, the interactions of succinylcholine on the M1, M2, and M3 receptors, those of atracurium on the M1 and M2 receptors, and those of mivacurium on the M3 receptors may also play a role.
Keyword NEUROMUSCULAR BLOCKING-AGENTS
AIRWAY SMOOTH-MUSCLE
TISSUE MECHANICS
LUNG-MECHANICS
Q-Index Code C1
Q-Index Status Provisional Code
Institutional Status Non-UQ

Document type: Journal Article
Sub-type: Article (original research)
Collection: Faculty of Health and Behavioural Sciences -- Publications
 
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Created: Wed, 17 Nov 2010, 11:27:33 EST