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|Title:||Consequences of a fat diet in the distribution of minerals within pancreatic tissues of rats and rabbits||Authors:||Ynsa, M.D.
islets of Langerhans
|Issue Date:||Oct-2012||Citation:||Ynsa, M.D., Minquin, R., Rajendran, R., Pinheiro, T., Watt, F. (2012-10). Consequences of a fat diet in the distribution of minerals within pancreatic tissues of rats and rabbits. Microscopy and Microanalysis 18 (5) : 1060-1066. ScholarBank@NUS Repository. https://doi.org/10.1017/S1431927612001547||Abstract:||The effects of plasma lipid overload on pancreatic islet function and on mineral imbalance are issues under debate. However, the outcomes may be biased by the different metabolisms of different species. This prospective study evaluated whether a high fat diet intake changed the distribution of physiologically relevant elements within pancreatic endocrine and exocrine tissues of Sprague Dawley rats and New Zealand White rabbits. Nuclear microscopy techniques provided images of the specimen density and structure as well as the elemental distributions and quantification of P, S, Cl, K, Ca, Fe, and Zn using unstained cryosections of pancreas. Our results indicate that pancreatic islets in normal rats and rabbits had lower tissue density and higher Ca, Fe, and Zn content compared to exocrine tissue, and that rabbit islets exhibit the highest Zn content (3,300 μg/g in rabbits versus 510 μg/g in rats). Fat diet intake resulted in large deposits of fat in the pancreas, which modified the density contrast of tissues and also resulted in a twofold decrease of Ca and Zn concentrations in islets of both rats and rabbits. This result indicates that a fat diet leads to a reduction in essential trace element concentrations in pancreas, which in turn may hamper endocrine function. © Microscopy Society of America 2012.||Source Title:||Microscopy and Microanalysis||URI:||http://scholarbank.nus.edu.sg/handle/10635/96068||ISSN:||14319276||DOI:||10.1017/S1431927612001547|
|Appears in Collections:||Staff Publications|
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