1 in 5 U.S. Kids Has a Mental Health Disorder
May 19, 2013 by JG
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hBD-1- and hBD-2-, as well as IL-1β- and IL-6-mRNA were detected in all gingival samples. Expression of hBD-1 and -2 was significantly reduced by nearly 2.5-fold (p < 0.05; Mann-Whitney) in gingival samples of smokers compared to control group specimens (non-smokers). In contrast, no significant differences of the gene expression of IL-6 and IL-1β were observed in human gingival tissue of smokers and non-smokers. The results presented here suggest that expression of human beta-defensins hBD-1 and -2, and, thus, the basal levels of innate immune defense reactions in the oral cavity are reduced by smoking.
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http://www.sciencedirect.co.../article/pii/S0300571212002047
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