beta-Adrenergic receptor-mediated increases in mouse cerebellar cyclic GMP levels in vitro

Noradrenaline produced a stereospecific and dose-related stimulation of cyclic GMP levels in incubated mouse cerebellar slices. The effect was mimicked by beta-agonists such as isoprenaline while the alpha-agonist phenylephrine was only weakly active. Experiments with selective beta 1- and beta 2-adrenoceptor agonists and antagonists, indicated that beta 2-receptors are the dominant class involved in the cyclic GMP response.