Association between blood aluminum and beta-2 receptor gene methylation with childhood asthma control

Nafea O. E.; El-Korashi L. A.; Gehad M. H.Yousif Y. M.Zake L. G.

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Association between blood aluminum and beta-2 receptor gene methylation with childhood asthma control

机译：Association between blood aluminum and beta-2 receptor gene methylation with childhood asthma control

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Previous studies have shown that environmental exposure to heavy metals has been related to epigenetic changes, such as DNA methylation in receptors involved in pathogenesis of asthma. One of these receptors is beta-2 adrenergic receptor (ADRB2). We conducted this study to examine the association between blood aluminum concentration, blood ADRB2 5 ' untranslated region (5 '-UTR) methylation level, and childhood asthma control level. Our results showed a significant positive association between high blood aluminum concentration (odds ratio, 16, 95% confidence interval (CI) [3.57 to 71.76], p < 0.001) and high blood ADRB2 5 '-UTR methylation level (odds ratio, 4.75, 95% CI [1.39 to 16.2], p = 0.013), and risk of uncontrolled asthma. Multivariable logistic regression revealed that higher blood aluminum concentration was independently associated with increased risk of uncontrolled bronchial asthma (odds ratio, 9.10, 95% CI [2.38 to 34.85], p = 0.0013], after controlling for age, sex, and blood ADRB2 5 '-UTR methylation level. In addition, blood ADRB2 5 '-UTR methylation level significantly correlated with whole blood aluminum concentration in asthmatic children (r = 0.480, p < 0.001). We concluded that increasing blood aluminum concentration is an important independent correlate of risk for uncontrolled bronchial asthma as well as increased blood aluminum concentration caused ADRB2 5 '-UTR hyper-methylation with increasing risk of uncontrolled bronchial asthma.

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《Human and Experimental Toxicology》 |2020年第10期|1301-1309|共9页
作者
Nafea O. E.; El-Korashi L. A.; Gehad M. H.Yousif Y. M.Zake L. G.;
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作者单位

Zagazig Univ, Fac Med, Dept Forens Med & Clin Toxicol, Zagazig 44519, Egypt;

Zagazig Univ, Fac Med, Dept Med Microbiol & Immunol, Zagazig, Egypt;

Zagazig Univ, Fac Med, Dept Pediat, Zagazig, EgyptZagazig Univ, Fac Med, Dept Pulmonol, Zagazig, Egypt;

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正文语种英语
中图分类毒物学（毒理学）;
关键词
ADRB2; aluminum; asthma control; bronchial asthma; DNA methylation;

Association between blood aluminum and beta-2 receptor gene methylation with childhood asthma control

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