Localization of NPY Immunoreactivity in the Proximal and Distal Intestinal Region of Teleost Fish, Notopterus

The purpose of the present study was to investigate the immunocytochemical aspects of the intestine of the teleost fish Notopterus notopterus. The distribution and relative frequency of the endocrine cells in the intestine were studied immunocytochemically using Streptavidin biotin peroxidase complex method. The aim was analyse the distribution and localization of immunoreactivity in the intestine of Notopterus notopterus against the antisera NPY. The samples were taken from the proximal and distal intestine. The NPY immunoreactive endocrine cells were found in the distal intestine at low frequencies than proximal intestine. These immunoreactive cells were distributed among more in mucosa epithelium and very low in the lamina propria and submucosa of intestine of N.notopterus.