Cerebellum Neuron (IMAGE) Princeton University Caption This section of adult mouse cerebellum shows insulin receptors (green) and calbindin (red), which in this case is present in the cerebellar neurons known as Purkinje cells. Insulin receptors are highly expressed in fibers that form synapses onto Purkinje cells, which express MHCI. Thus both in the cerebellum and hippocampus (previous image), insulin receptors are highly expressed in cells that form synapses onto MHCI-expressing neurons, which suggests MHCI and insulin receptors could interact, either directly or indirectly, in the living brain. Credit Image courtesy of Lisa Boulanger, Department of Molecular Biology Usage Restrictions None License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.