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THE MICROSCOPIC AND IMMUNOHISTOLOGIC ANATOMY OF THE ENDOCRINE PANCREAS OF PYGMY AND DWARF SPERM WHALES (KOGIIDAE)
Version of Record online: 26 AUG 2006
Marine Mammal Science
Volume 4, Issue 4, pages 291–296, October 1988
How to Cite
Brown, E. D., Bossart, G. D. and Reynolds, J. E. (1988), THE MICROSCOPIC AND IMMUNOHISTOLOGIC ANATOMY OF THE ENDOCRINE PANCREAS OF PYGMY AND DWARF SPERM WHALES (KOGIIDAE). Marine Mammal Science, 4: 291–296. doi: 10.1111/j.1748-7692.1988.tb00538.x
- Issue online: 26 AUG 2006
- Version of Record online: 26 AUG 2006
- Received: March 17,1986 Accepted: June 21, 1988.
- pygmy sperm whale;
- Kogia breviceps;
- dwarf sperm whale;
- Kogia simus;
- pancreatic anatomy;
- islets of Langerhans
Histologic studies of pancreatic tissues of one pygmy sperm whale, Kiogia breviceps, and one dwarf sperm whale, K. simus, demonstrated rather typical exocrine pancreatic anatomy. Peroxidase-antiperoxidase (PAP) techniques determined that the cell composition of the islets of Langerhans resembled that of other mammals. Within islets, cells secreting insulin (B-cells) and glucagon (A-cells), were clearly demonstrated, but, surprisingly, isolated A- and B-cells were also found among pancreatic acinar cells. PAP techniques demonstrated the presence of neuron-specific enolase within islets, but failed to provide a sufficiently clear reaction to demonstrate the presence of somarostatin-producing D-cells. No positive PAP reaction for serotonin occurred.