GALANIN-LIKE, VIP-LIKE, AND PACAP-LIKE NERVES IN THE BROCKMANN BODY OF THE COD GADUS-MORHUA AND THE RAINBOW-TROUT ONCHORHYNCHUS MYKISS INNERVATE THE INSULIN-CONTAINING AND GLUCAGON-CONTAINING CELLS

Immunocytochemistry shows that insulin-containing cells are densely in nervated by galanin-positive nerve fibres in the Brockmann body of two teleost, the Atlantic cod (Gadus morhua) and the rainbow trout (Oncor hynchus mykiss). The insulin-like cells are also innervated by a few n erve fibres that contain PACAP-like peptide and occasional fibres that contain VIP-like peptide. The glucagon-like cells are only partly inn ervated by fibres positive to galanin-, VIP- and PACAP-like peptide.