Pancreatic hormones of dromedary camel: immunohistochemical localisation Althnaian Thnaian A.1, Ali Abdelhay M.1, Bahr Sabry M. El2,3,* 1Department of Anatomy, College of Veterinary Medicine, King Faisal University, P.O. Box 400, Al Ahsa, 31982, Saudi Arabia 2Department of Physiology, Biochemistry and Pharmacology, College of Veterinary Medicine, King Faisal University, P.O. Box 400, Al Ahsa, 31982, Saudi Arabia 3Department of Biochemistry, Faculty of Veterinary Medicine, Alexandria University, Egypt *email: sabryelbahr@hotmail.com
Online published on 30 May, 2019. Abstract The persent study was aimed to investigate the endocrine cell types of the pancreas of the dromedary camels and the pattern of their distribution in the islets of Langerhans and within the different lobes, using the immunohistochemical techniques. Therefore, specimens from 5 camels (Camelus dromedarius) of both sexes at different ages (2–12 years) were used. The insulin, glucagon, somatostatin and pancreatic polypeptide immunoreactive cells were detected in the camel pancreas by light microscope immunhistochemistry. The current findings indicated that the insulin immunoreactive cells were located centrally in most islets. In several islets, glucagon positive cells were found in the peripheral part forming a rim or a circular zone. They were fewer in number compared to the insulin cells. The somatostatin immunoreactive cells were randomly scattered in the islets. These were characterised by long or short cytoplasmic processes. The pancreatic polypeptide reactive cells were fewer in number and peripherally located in the islet of Langerhans. These were relatively large and some have cytoplasmic processes. In conclusion, the pancreatic tissues and islets contained the insulin, glucagon, somatostatin and pancreatic polypeptide immunoreactive cells and are well distributed in the pancreas of the camel. Top Keywords Camel, glucagon, immunohistochemistry, insulin, pancreas, polypeptide, somatostatin. Top |