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Original Article

Nephropathy Induced by Intramuscularly Administered Glycerol and Contrast Media in Rats

A comparison between diatrizoate, iohexol and ioxilan

, , , &
Pages 217-222 | Accepted 27 Sep 1988, Published online: 07 Jan 2010
 

Abstract

Urine profiles (albumin, glucose, NAG, LDH, GGT, sodium, and phosphate) were followed for 14 days after intravenous injection of either diatrizoate, iohexol, ioxilan, or saline in 24 Wistar rats with a glomerular and tubular dysfunction induced by intramuscularly (i.m.) administered glycerol. Another 6 rats exposed to neither glycerol nor contrast media served as controls. The effect of ioxilan and saline on the albumin excretion was similar, whereas diatrizoate and iohexol increased it significantly. The contrast media had no further inhibitory effect on the reabsorption of glucose. Iohexol caused significantly increased excretion of all three enzymes, ioxilan of NAG and LDH, whereas diatrizoate only increased the excretion of LDH. The sodium excretion was further increased by ioxilan and diatrizoate, whereas none of the contrast media affected the phosphaturia. Both ioxilan and iohexol caused a round cell response around the tubules shown by light microscopy whereas diatrizoate caused no further changes. It is concluded that diatrizoate and iohexol increase glomerular dysfunction induced by glycerol i.m.; all three contrast media cause some further increase in the tubular dysfunction. Neither diatrizoate, iohexol nor ioxilan prolong nephropathy induced by glycerol i.m. determined by the chemical analyses. The histologic finding indicates a direct toxic effect of non-ionic low osmolar contrast media in this animal model of nephropathy.

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