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Mm-Fgfr1c (red) and Klb (brown) were found co-expressed in the suprachiasmatic nucleus (SCh, a), principal sensory nucleus of the trigeminal nerve (Pr5N, b), medial trigeminal neurons (Me5N, c), but not in the area postrema (AP, d). Pr5N and Me5N exhibited low expression of Klb (1–2 DAB+ dots/cell), but this expression pattern was consistent in all neurons assessed in these regions from N=3 animals. Scale bar = 200 μm.
