A Brief Overview of the 32nd Annual STP Symposium on the Toxicologic Pathology of the Digestive Tract and Pancreas

Danilenko, Dimitry M.; Nambiar, Prashant R.; Cesta, Mark F.

doi:10.1177/0192623313502402

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“…[ 5 ] The endocrine component comprises 1%–% of pancreas. [ 6 ] Islets of Langerhans are compressed masses of epithelial cells through which a labyrinth of capillaries penetrate. [ 7 ] There are different types of cells in the islets, the most important of which are alpha (present in the periphery of islets and secrete glucagon hormone) and beta cells (existing in the center of islets and secrete insulin hormone).…”

Section: Introductionmentioning

confidence: 99%

The effect of time and temperature on viability and performance of Langerhans islets separated from Balb/c mouse after death

et al. 2015

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Background:Tissue transplantation plays a pivotal role in the treatment of diseases. Pancreatic beta cell transplantation is the best way to obtain normal blood glucose in patients with diabetes type 1. However, it is not clear how long endocrine pancreas cells can be used for transplantation after the donor's death. The present study was conducted to analyze the performance and viability of pancreatic islet cells after death.Materials and Methods:Pancreas was separated from Balb/c mice at different times (0, 1, 4, 6, 12, and 24 h after death) at temperatures of 4°C and 23°C, and was cultured in Roswell_Park_Memorial_Institute (RPMI) 1640. Insulin shock, MTT assay, aldehyde fuchsin staining, dithizone staining, and florescence microscopy methods were applied to analyze the performance of beta cells, cell viability, islets’ diagnosis, islet cells’ diagnosis, and viable and necrotic cells diagnosis, respectively.Results:Islets of Langerhans and beta cells were diagnosed. By increasing the temperature and time, the viability and performance of beta cells decreased significantly (P < 0.05).Conclusion:The best condition for keeping the islets of Langerhans in terms of viability and performance is 4 h after death at temperature of 4°C.

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Section: Introductionmentioning

confidence: 99%