Evidence for a direct relationship between phosphoinositide metabolism and airway smooth muscle contraction induced by muscarinic agonists

Eur J Pharmacol. 1988 Nov 1;156(2):271-4. doi: 10.1016/0014-2999(88)90331-7.

Abstract

The relationship between bovine tracheal muscle contraction and phosphoinositide metabolism was studied with the muscarinic agonists, methacholine, oxotremorine, and McN-A-343. Analysis of the dose-response curves for contraction and inositol phosphates accumulation with these agonists demonstrated a direct relationship between the two parameters, with a considerable reserve of inositol phosphate production for the full contractile agonists, methacholine and oxotremorine, and no reserve for the partial agonist, McN-A-343.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • (4-(m-Chlorophenylcarbamoyloxy)-2-butynyl)trimethylammonium Chloride / pharmacology
  • Animals
  • Cattle
  • Inositol Phosphates / metabolism
  • Methacholine Chloride
  • Methacholine Compounds / pharmacology
  • Muscarinic Antagonists*
  • Muscle Contraction / drug effects*
  • Muscle, Smooth / drug effects*
  • Muscle, Smooth / metabolism
  • Oxotremorine / pharmacology
  • Phosphatidylinositols / metabolism*
  • Receptors, Muscarinic / physiology
  • Trachea / drug effects
  • Trachea / metabolism

Substances

  • Inositol Phosphates
  • Methacholine Compounds
  • Muscarinic Antagonists
  • Phosphatidylinositols
  • Receptors, Muscarinic
  • Methacholine Chloride
  • (4-(m-Chlorophenylcarbamoyloxy)-2-butynyl)trimethylammonium Chloride
  • Oxotremorine