Aleksandra Milutinović Živin (Author), Ruda Zorc-Pleskovič (Author), Marko Živin (Author), Andrej Vovk (Author), Igor Serša (Author), Dušan Šuput (Author)

Abstract

In vivo visualization of kidney and liver damage by Magnetic Resonance Imaging (MRI) may offer an advantage when there is a need for a simple, non-invasive and rapid method for screening of the effects of potential nephrotoxic and hepatotoxic substances in chronic experiments. Here, we used MRI for monitoring chronic intoxication with microcystins (MCs) in rat. Male adult Wistar rats were treated every other day for eight months, either with MC-LR (10 g/kg i.p.) or MC-YR (10 g/kg i.p.). Control groups were treated with vehicle solutions. T1-weighted MR-images were acquired before and at the end of the eight months experimental period. Kidney injury induced by the MCs presented with the increased intensity of T1-weighted MR-signal of the kidneys and liver as compared to these organs from the control animals treated for eight months, either with the vehicle solution or with saline. The intensification of the T1-weighted MR-signal correlated with the increased volume density of heavily injured tubuli (R2 = 0.77), with heavily damaged glomeruli (R2 = 0.84) and with volume density of connective tissue (R2 = 0.72). The changes in the MR signal intensity probably reflect the presence of an abundant proteinaceous material within the dilated nephrons and proliferation of the connective tissue. T1-weighted MRI-is a valuable method for the in vivo screening of kidney and liver damage in rat models of intoxication with hepatotoxic and nephrotoxic agents, such as microcystins.

Keywords

microcystin;chronic toxicity;magnetic resonance imaging;

Data

Language: English
Year of publishing:
Typology: 1.01 - Original Scientific Article
Organization: UL MF - Faculty of Medicine
UDC: 577.1
COBISS: 30744025 Link will open in a new window
ISSN: 1660-3397
Views: 270
Downloads: 59
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Other data

Secondary language: Slovenian
Secondary keywords: mikrocistin;kronična toksičnost;slikanje z magnetno resonanco;
Type (COBISS): Article
Pages: str. 2785-2798
Volume: ǂVol. ǂ11
Issue: ǂno. ǂ8
Chronology: 2013
DOI: 10.3390/md11082785
ID: 13299917