therefore , this study was performed to characterize muscarinic receptors on rat gastric parietal cells using the 3 subtype-selective antagonists hexahydrosiladifenidol and silahexocyclium , which have high affinity for glandular m3 subtypes , and af-dx 116 , which has high affinity to cardiac m2 receptors .
C0034826
muscarinic receptors
C0384752
m2 receptors