Home General Physiology and Biophysics 2009 General Physiology and Biophysics Vol.28, No.4, p.414–419, 2009

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General Physiology and Biophysics Vol.28, No.4, p.414–419, 2009

Title: Effect of static magnetic field and/or cadmium in the antioxidant enzymes activity in rat heart and skeletal muscle
Author: Salem Amara, Catherine Garrel, Alain Favier, Khémais Ben Rhouma, Mohsen Sakly and Hafedh Abdelmelek
Abstract: Currently, environmental and industrial pollution along with increase and causes multiple stress conditions, the combined exposure to magnetic field and other toxic agents is recognised as an important research area, with a view to better protecting human health against their probable unfavourable effects. In the present study, we investigated the effect of co-exposure to static magnetic field (SMF) and cadmium (Cd) on the antioxidant enzymes activity and the malondialdehyde (MDA) concentration in rat skeletal and cardiac muscles. The exposure of rats to SMF (128 mT, 1 h/day during 30 consecutive days) decreased the activities of glutathione peroxidase (GPx) and the superoxide dismutase (CuZn-SOD) in heart muscle. Sub-chronic exposure to SMF increased the MDA concentration in rat cardiac muscle. Cd treatment (CdCl2, 40 mg/l, per os) during 4 weeks decreased the activities of catalase (CAT) in skeletal muscle and the CuZn-SOD in the heart. Moreover, Cd administration increased MDA concentration in the both structures. The combined effect of SMF (128 mT, 1 h/day during 30 consecutive days) and Cd (40 mg/l, per os) disrupt the antioxidant enzymes activity in rat skeletal and cardiac muscles. Moreover, we noted a huge increase in MDA concentration in the heart and skeletal muscle compared to control group. Thus it is possible that the SMF- and/or Cd-induced depletion of antioxidant enzymes activity in muscle tissues might, like the enhanced lipid peroxidation, importantly contribute to oxidative damage.
The combined effect of SMF and Cd altered significantly the antioxidant enzymatic capacity and induced lipid peroxidation in both skeletal and cardiac muscle.
Keywords: Static magnetic field — Cadmium — Oxidative stress — Muscle — Rat
Year: 2009, Volume: 28, Issue: 4 Page From: 414, Page To: 419
doi:10.4149/gpb_2009_04_414


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