Abstract
The present study was performed to evaluate the protective effect of selenium (Se) against penconazole (PEN)-induced oxidative stress in the cardiac tissue of adult rats. Male Wistar rats were divided into four groups of six each. The first group represented the controls. For the second group (PEN), no treatment was performed during the first 6 days, and then, the rats received intraperitoneally 67 mg/kg body weight (bw) of PEN every 2 days from day 7 until day 15, the sacrifice day. For the third group (Se + PEN), Se was administered daily through the diet at a dose of 0.5 mg/kg of diet for 15 days. Rats of this group received also every 2 days PEN (67 mg/kg bw) from day 7 until day 15. The fourth group (Se) received daily, through the diet, Se (0.5 mg/Kg of diet) during 15 days. Our results showed that Se reduced significantly the elevated cardiac levels of malondialdehyde and protein carbonyl following PEN treatment, and attenuated DNA fragmentation induced by this fungicide. In addition, Se modulated the alterations of antioxidant status: enzymatic (superoxide dismutase, glutathione peroxidase, and catalase) and nonenzymatic (glutathione and vitamin C) antioxidants in the heart of PEN-treated rats. This trace element was also able to alleviate perturbations of lipid profile. The protective effect of selenium was further evident through the histopathological changes produced by PEN in the heart tissue. Taken together, our results indicated that Se might be beneficial against PEN-induced cardiac oxidative damage in rats.
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Abbreviations
- AChE:
-
Acetylcholinesterase
- AI:
-
Atherogenic index
- Bw:
-
Body weight
- CAT:
-
Catalase
- DTNB:
-
5,5′-dithiobis-2-nitrobenzoic acid
- GPx:
-
Glutathione peroxidase
- GSH:
-
Reduced glutathione
- HDL-C:
-
High-density lipoprotein cholesterol
- LDL-C:
-
Low-density lipoprotein cholesterol
- MDA:
-
Malondialdehyde
- MRL:
-
Maximum residue limits
- Na2SeO3 :
-
Sodium selenite
- PCO:
-
Protein carbonyl
- PEN:
-
Penconazole
- ROS:
-
Reactive oxygen species
- Se:
-
Selenium
- SOD:
-
Superoxide dismutase
- TBA:
-
Thiobarbituric acid
- TC:
-
Total cholesterol
- TG:
-
Triglyceride
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Acknowledgments
This work was supported by the Ministry of Higher Education and Scientific Research [UR/11ES-70], Tunisia. The authors are thankful to Mr. Chedli Tmar for the maintenance of the laboratory animals and to Mrs. Raoudha Ben Amar Abdennadher for her skillful technical assistance.
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The authors declare that they have no competing interests.
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Chaâbane, M., Tir, M., Hamdi, S. et al. Improvement of Heart Redox States Contributes to the Beneficial Effects of Selenium Against Penconazole-Induced Cardiotoxicity in Adult Rats. Biol Trace Elem Res 169, 261–270 (2016). https://doi.org/10.1007/s12011-015-0426-0
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DOI: https://doi.org/10.1007/s12011-015-0426-0