Local Effects of Sodium, Calcium and Magnesium Upon Small and Large Blood Vessels of the Dog Forelimb

Resistance to blood flow through the small vessels of the dog foreleg decreased following local elevation of serum sodium and magnesium concentrations. Small vessel resistance increased following elevation of calcium concentration. Associated with the former changes was decreased responsiveness to l...

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Bibliographic Details
Published in:Circulation research 1960-01, Vol.8 (1), p.57-70
Main Author: Haddy, Francis J
Format: Article
Language:English
Subjects:
Animals
Brachial Artery - pharmacology
Calcium - pharmacology
Dogs
Forelimb
Magnesium - pharmacology
Old Medline
Sodium - pharmacology
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Summary:Resistance to blood flow through the small vessels of the dog foreleg decreased following local elevation of serum sodium and magnesium concentrations. Small vessel resistance increased following elevation of calcium concentration. Associated with the former changes was decreased responsiveness to levarterenol and methacholine. These changes likely result from effects of the cations upon the smooth muscle cell of the arteriole.
ISSN:0009-7330
1524-4571
DOI:10.1161/01.RES.8.1.57