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Representative autoradiograms of AT1 receptor binding (upper row) and CRF mRNA (lower row) in the paraventricular nucleus of grouped or isolated animals treated with vehicle or the AT1 blocker. AT1 receptor binding is localized to the parvocellular and periventricular regions of the PVN. CRF mRNA is expressed in the parvocellular PVN and can be superimposed to the parvocellular AT1 receptor binding. Arrows point to the 3rd ventricle. Scale bar = 1 mm.
