Summary
Light-microscopic immunocytochemistry and routine staining techniques were used to localize insulin and somatostatin-immunoreactive cells within the endocrine pancreatic tissue of the lamprey, Petromyzon marinus, during various stages of the life cycle. The endocrine pancreas of larvae consists solely of follicles of insulin-immunoreactive cells surrounding the junction of oesophagus, intestine and bile duct. Somatostatin-immunoreactive cells are restricted to the intestinal epithelium. In both parasitic and upstream-migrating adults the endocrine pancreas consists of cranial and caudal portions, both containing separate populations of insulin and somatostatin-immunoreactive cells.
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Supported by NSERC of Canada grant no. A5945 to JHY
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Elliott, W.M., Youson, J.H. Immunocytochemical localization of insulin and somatostatin in the endocrine pancreas of the sea lamprey Petromyzon marinus L., at various stages of its life cycle. Cell Tissue Res. 243, 629–634 (1986). https://doi.org/10.1007/BF00218071
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DOI: https://doi.org/10.1007/BF00218071