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Int. J. Environ. Res. Public Health 2013, 10(12), 7310-7326; doi:10.3390/ijerph10127310
Article

The Association between Splenocyte Apoptosis and Alterations of Bax, Bcl-2 and Caspase-3 mRNA Expression, and Oxidative Stress Induced by Dietary Nickel Chloride in Broilers

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Received: 5 November 2013; in revised form: 7 December 2013 / Accepted: 9 December 2013 / Published: 17 December 2013
(This article belongs to the Special Issue IJERPH: 10th Anniversary)
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Abstract: Two hundred and forty avian broilers were equally divided into four groups, and raised with a corn-soybean basal diet or the same diet supplemented with 300, 600, 900 mg/kg NiCl2 for 42 days. Numbers or percentages of apoptotic splenocytes by flow cytometry (FCM) and TUNEL were higher (p < 0.05 or p < 0.01) in the 300, 600 and 900 mg/kg groups than those in the control group. Results measured by qRT-PCR and ELISA showed that mRNA expression and contents were significantly higher (p < 0.05 or p < 0.01) in Bax and Caspase-3, and were significantly lower (p < 0.05 or p < 0.01) in Bcl-2 of the 300, 600 and 900 mg/kg groups. Also, the SOD, CAT and GSH-Px activities, and the ability to inhibit hydroxyl radical, and GSH contents were significantly decreased (p < 0.05 or p < 0.01), and MDA contents were increased (p < 0.05 or p < 0.01) in all groups. In conclusion, dietary NiCl2 in excess of 300 mg/kg caused apoptosis, altered Bax, Bcl-2 and Caspase-3 mRNA expression levels and contents, and induced oxidative stress in the spleen. Also, splenocyte apoptosis was closely related to the alternations of Bax, Bcl-2 and Caspase-3 mRNA expression, and oxidative damage. The splenic immunity and blood filtration functions were impaired in broilers.
Keywords: NiCl2; apoptosis; apoptosis protein; mRNA expression; oxidative stress; qRT-PCR; FCM; broiler NiCl2; apoptosis; apoptosis protein; mRNA expression; oxidative stress; qRT-PCR; FCM; broiler
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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MDPI and ACS Style

Huang, J.; Cui, H.; Peng, X.; Fang, J.; Zuo, Z.; Deng, J.; Wu, B. The Association between Splenocyte Apoptosis and Alterations of Bax, Bcl-2 and Caspase-3 mRNA Expression, and Oxidative Stress Induced by Dietary Nickel Chloride in Broilers. Int. J. Environ. Res. Public Health 2013, 10, 7310-7326.

AMA Style

Huang J, Cui H, Peng X, Fang J, Zuo Z, Deng J, Wu B. The Association between Splenocyte Apoptosis and Alterations of Bax, Bcl-2 and Caspase-3 mRNA Expression, and Oxidative Stress Induced by Dietary Nickel Chloride in Broilers. International Journal of Environmental Research and Public Health. 2013; 10(12):7310-7326.

Chicago/Turabian Style

Huang, Jianying; Cui, Hengmin; Peng, Xi; Fang, Jing; Zuo, Zhicai; Deng, Junliang; Wu, Bangyuan. 2013. "The Association between Splenocyte Apoptosis and Alterations of Bax, Bcl-2 and Caspase-3 mRNA Expression, and Oxidative Stress Induced by Dietary Nickel Chloride in Broilers." Int. J. Environ. Res. Public Health 10, no. 12: 7310-7326.



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