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An Isolated Perfused Rat Kidney Model for the Evaluation of the Effect of Glucose on Renal Tubular Epithelial Morphology

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An isolated perfused kidney model was used to evaluate the effect of hyperglycemia on renal tubular epithelial cell morphology. Ten Sprague–Dawley rat kidneys were perfused with Krebs–Henseleit buffer containing 70 mmol/L of glucose (five for 1 h and five for 2 h). Two control groups consisted of 10 kidneys perfused with Krebs–Henseleit buffer without hyperglycemia (five for 1 h and five for 2 h), and 10 nonperfused contralateral kidneys placed in the same environment for the same duration. The hyperglycemia group had significantly increased renal tubular vacuolization (p < 0.001) compared to both control groups at 1 and 2 h. The isolated perfused kidney model recapitulates the renal tubular vacuolization phenotype found in hyperglycemia and may be a potential tool for the investigation into causal factors in renal histology. The full pattern of the Armanni–Ebstein phenomenon was not, however, reproduced, suggesting that this change requires more time or involves more complex factors.
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Keywords: Armanni–Ebstein phenomenon; diabetes mellitus; forensic science; hyperglycemia; isolated perfused kidney; nephrotic syndrome

Document Type: Research Article

Publication date: January 1, 2017

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