title: Enkephalin-like immunoreactivity in the pedal ganglion of Mytilus edulis (Bivalvia) and its proximity to dopamine-containing structures.
abstract: The presence of enkephalin-like immunoreactivity in the pedal ganglion of the bivalve mollusc Mytilus edulis has been demonstrated. Enkephalin-like immunoreactivity is highly localized in those intraganglionic regions rich in dopamine-containing structures. In addition, FMRF-NH2-like (Phe-Met-Arg-Phe-HN2) immunoreactivity was found to occur in intraganglionic regions that are devoid of enkephalin-like immunoreactivity. The differential topographic distribution of these peptidergic immunoreactivities suggests involvement in separate functions. By contrast, the closeness of enkephalin-like immunoreactivity to dopamine histofluorescence supports previous data demonstrating biochemical and physiological links between these two systems.
mesh_terms: D000818:Animals; D001369:Axons / Q000032:analysis; D049872:Bivalvia / Q000032:analysis*; D003594:Cytoplasmic Granules / Q000032:analysis; D004298:Dopamine / Q000032:analysis*; D004745:Enkephalins / Q000032:analysis*; D019835:FMRFamide; D005455:Fluorescent Antibody Technique; D005724:Ganglia / Q000032:analysis*; D007124:Immunoenzyme Techniques; D009474:Neurons / Q000032:analysis; D009842:Oligopeptides / Q000032:analysis; D012701:Serotonin / Q000032:analysis
chemical_list: D004745:Enkephalins; D009842:Oligopeptides; D012701:Serotonin; D019835:FMRFamide; D004298:Dopamine