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OX1R is expressed in RVLM-projecting PVN neurons. (A) A representative micrograph showing immunoreactivity of OX1R (green), tracer labelled RVLM-projecting PVN neurons (red) and merged micrograph of OX1R and tracer in the PVN. (B) Higher magnification micrograph for the area boxed in image (A). The arrows show the OX1R-expressing neurons which have axons projecting to the RVLM. The brain section is taken from about bregma −1.6 mm. 3V, the third ventricle
