What are the different muscarinic acetylcholine receptor subtypes andhow are they distributed in the airways and molecular signallingmechanisms? What is their function in neurogenic and non-neurogeniccontrol of the airways and in inflammatory mechanisms? How is their geneexpression regulated? The great importance of muscarinic acetylcholinereceptors for the pathophysiology and treatment of chronic inflammatoryobstructive airways diseases calls for...