Beer consumption reduces cerebral oxidation caused by aluminum toxicity by normalizing gene expression of tumor necrotic factor alpha and several antioxidant enzymes

被引:53
作者
Gonzalez-Munoz, M. J. [2 ]
Meseguera, I. [2 ]
Sanchez-Reus, M. I. [3 ]
Schultz, A. [1 ]
Olivero, R. [1 ]
Benedi, J. [4 ]
Sanchez-Muniz, F. J. [1 ]
机构
[1] Univ Complutense, Dept Nutr, Fac Farm, E-28040 Madrid, Spain
[2] Univ Alcala, Dept Nutr Bramatol & Toxicol, Fac Farm, Madrid, Spain
[3] Univ Complutense, Dept Bioquim & Biol Mol 2, Fac Farm, E-28040 Madrid, Spain
[4] Univ Complutense, Dept Farmacol, Fac Farm, E-28040 Madrid, Spain
关键词
aluminum; antioxidant enzymes; beer; brain; silicon; TNF alpha;
D O I
10.1016/j.fct.2007.11.006
中图分类号
TS2 [食品工业];
学科分类号
0832 ;
摘要
Aluminum (Al)-induced neurotoxicity is well known and different salts of aluminum have been reported to accelerate oxidative damage to biomolecules. The present study has examined whether silicon consumed in the form of silicic acid or beer could potentially inhibit aluminum toxicity in the brain. Male mice were administered with Al(NO3)(3) orally at a dose of 450 mg/kg/day in drinking water for 3 month. Experimental mice were given Al(NO3)(3) along with 50 mg/L of silicic acid or with 0.5 ml/clay of beer. Al brain levels in the Al group were four times higher than those of control mice while silicic acid and beer group values were 40%, lower than those of the Al group. We have observed that beer prevented accumulation of lipid damage significantly, which resulted from aluminum intake. Decline in the expression of mRNA of endogenous antioxidant enzymes associated with aluminum administration was also inhibited by beer and silicic acid. The tumor necrosis factor alpha (TNF alpha) RNA expression was normalized in silicic acid and beer groups. Very high and significant correlations were found for the different parameters tested suggesting that moderate consumption of beer, due to its silicon content, effectively protects against the neurotoxic effects of aluminum. (c) 2007 Elsevier Ltd. All rights reserved.
引用
收藏
页码:1111 / 1118
页数:8
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