Abstract
Calcification occurred in the kidney of streptozotocin (STZ)-induced diabetic rats fed a low-zinc diet. The deposits were stained by the von Kossa method and were detected intracellularly in the tubular cells, mainly in the cortico-medullar region. The deposits were found to be a heterogenous substance on electron microscopy. There were various sizes of deposits, and the surfactant was very much distorted. Many deposits grew up to bind small particles, and the core-like substance was observed in the center of the deposit. The component of the deposit was analyzed by an X-ray microanalyzer, and was found to be calcium and phosphorus. The ratio of calcium to phosphorus was 2.159, which coincided with the ratio of standard hydroxyapatite. From these observations, the deposit is believed to be hydroxyapatite. It is thought that the core is formed at first, many particles are then bound to the core, and deposits grow up.
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Minami, T., Okazaki, Y., Komiya, H. et al. Accumulation of hydroxyapatite in the kidney of streptozotocin-induced diabetic rat fed a low-zinc diet. Biol Trace Elem Res 49, 67–73 (1995). https://doi.org/10.1007/BF02789003
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DOI: https://doi.org/10.1007/BF02789003