Galanin-like peptide (GALP) is expressed in rat hypothalamus and pituitary, but not in DRG

Galanin-like peptide (GALP) was recently purified on the basis of its prefe rential activation of galanin receptor subtype 2 (GALR2) compared with gala nin receptor subtype 1 (GALR1). Using in situ hybridization of adult rat br ain, pituitary and dorsal root ganglia (DRG) we demonstrate that GALP mRNA expression is restricted to the arcuate nucleus and median eminence of the hypothalamus, and to the posterior lobe of the pituitary. No expression was detected elsewhere in brain, or in the DRG. in adult mouse, no expression was detected in brain or in DRG either before or after axotomy, suggesting that GALP has no apparent role in the axotomy response of DRG. NeuroReport 11:3909-3913 (C) 2000 Lippincott Williams & Wilkins.