Abstract
Abstract Immunohistochemical techniques were employed to investigate the distribution of galanin-like immunoreactivity in the central nervous system (CNS) of the snail, Indoplanorbis exustus, and immunoreactivity with an antibody against choline acetyltransferase (CAT) in galanin-immunoreactive somata was also examined. Galanin-immunoreactive (Gal-IR) cells were observed in all ganglia. They were classified into large (50 μm), medium (21 μm), and small (13 μm)-sized neurons and small Gal-IR cells dominated over large and medium Gal-IR cells in number. Gal-IR cells were most abundant in the cerebral ganglion. Several immunoreactive somata were seen in the parietal, visceral, and pedal ganglia, and only a few Gal-IR cells in the pleural and buccal ganglia. Densely arranged Gal-IR fiber bundles were observed in the cerebro-pleural, parieto-pleural and bucco-cerebral connectives. Of the peripheral nerves, the pallial and pharyngeal nerves contained more numerous Gal-IR fibers than other peripheral nerves. By ...
Published Version
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