Effect Of Antagonization Of M4 Receptors With Tropicamide, Catalysis And Motor Changes Induced By Nitrergic Inhibition, In Mice
The Parkinson's disease is characterized by the depletion of dopamine, however, there are strong indicators of interactions among other neurotransmitters in the base nuclei, such as in cholinergic neurotransmition. The aim of this study was to evaluate the effect of tropicamide, an M4 receptor antagonist, on the mice’s motor behavior induced by inhibition of nitric oxide synthase with L-NOARG. 48 male Swiss mice were subdivided into 6 experimental groups. Each animal was subjected to stereotaxic surgery for implantation of cannulae, in the striatum.