‘Free’ iron, as detected by electron paramagnetic resonance spectroscopy, increases unequally in different tissues during dietary iron overload in the rat (original) (raw)

Abstract

‘Free’ iron concentration, as determined by electron paramagnetic resonance (EPR) spectroscopy, and lipid peroxidation (LPO), as determined by thiobarbituric acid test, were assessed in the lung, heart, liver, spleen, brain and kidney of rats subjected to experimental iron overload. Two tests, Desferal- and NO-available iron, were used to measure ‘free’ iron and gave comparable results. The most pronounced accumulation of ‘free’ iron was observed in liver, kidney and spleen. Differences between control and iron loaded animals increased during the initial 90 days of treatment. Between 90 and 180 days ‘free’ iron concentration reached a steady state level, or even decreased, as in the case of liver. Lipid peroxidation level, measured in the organs of both treated and matched controls, did not give any significant difference during the initial 90 days of treatment. A significant augmentation was observed in liver, kidney, spleen and heart at 180 days. The results of the present research show that, under conditions of moderate siderosis, the occurrence of LPO is partially related to the level of ‘free’ iron.

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Author notes

1. Andrey V. Kozlov
   Present address: Department of Biophysics, Russian Medical University, Ostrovitianova Str. 1, 117347, Moscow, Russia

Authors and Affiliations

1. Department of Biomedical Science, University of Modena, Modena, Italy
   Andrey V. Kozlov, Anna Bini, Daniela Gallesi, Fabiola Giovannini, Anna Iannone, Alberto Masini, Eros Meletti & Aldo Tomasi

Authors

1. Andrey V. Kozlov
2. Anna Bini
3. Daniela Gallesi
4. Fabiola Giovannini
5. Anna Iannone
6. Alberto Masini
7. Eros Meletti
8. Aldo Tomasi

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Kozlov, A.V., Bini, A., Gallesi, D. et al. ‘Free’ iron, as detected by electron paramagnetic resonance spectroscopy, increases unequally in different tissues during dietary iron overload in the rat.Biometals 9, 98–103 (1996). https://doi.org/10.1007/BF00188097

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• Received: 08 April 1995
• Accepted: 24 July 1995
• Issue date: January 1996
• DOI: https://doi.org/10.1007/BF00188097

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