%A Pathania, Manav %A Wichmann, Grete %A Niedergeses, Lisa %D 2005 %T M 2 receptor mediates a decrease in ACh release at the frog neuromuscular junction %K %X Muscarinic receptors have been implicated in modulating ACh release at vertebrate neuromuscular junctions (NMJ). We characterized the roles of M 2 and M 3 receptors at the frog NMJ by pharmacologically isolating each receptor and measuring ACh release in terms of EPP amplitude. We observed an M 2 mediated inhibition of ACh release and no apparent involvement of M 3 receptors. We conclude that muscarinic responses in the frog are unlike those observed in the lizard or the rat. %U https://ojs.grinnell.edu/index.php/pnsj/article/view/121 %J Pioneering Neuroscience %0 Journal Article %P 23-25%V 6 %8 2005-05-17