I am studying the effect of parasympathetic stimulation on the islet beta cells. Since, the parasympathetic innervates the pancreas and it has been hypothesized that stimulation of parasympathetic nerve enhances the release of insulin from beta cells. I am using Chat-Cre rat for this study. I am thinking to target cholinergic neurons to express GCaMP so that I can compare the fluorescence without and with parasympathetic stimulation.
Can anyone help me where in pancreas exactly I should inject GCaMP using AAV?