A Galanin-Like Peptide in the Colon of the Golden Hamster

Galanin-like immunoreactive peptide was studied in the colonic wall of the golden hamster using the immunoflurescent technique. Galanin-like immunoreactivity was observed mainly in cell bodies of the myenteric plexus and in fibers in the lamina propria mucosae and in the circular muscle layer. The submucosal plexus and submucosal connective tissue, however, contained very little galanin-like immunoreactive peptide. This peptide appears to be instrinsic mainly to the colon. The presence of the peptide indicates some possible biological roles in the colonic function.