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  • Title: Role of Vitamin D Receptor Gene Polymorphisms on the Susceptibility to Periodontitis: A Meta-Analysis of a Controversial Issue.
    Author: Wan QS, Li L, Yang SK, Liu ZL, Song N.
    Journal: Genet Test Mol Biomarkers; 2019 Sep; 23(9):618-633. PubMed ID: 31448964.
    Abstract:
    Background: To assess whether vitamin D receptor (VDR) gene polymorphisms influence the susceptibility to periodontitis. Methods: We retrieved 34 relevant studies, comprising a total of 3848 subjects suffering from periodontitis and 3470 controls for this meta-analysis. The pooled data were analyzed using STATA software. Results: Among all ethnic groups examined, the VDR BsmI polymorphism was associated with periodontitis under the recessive model (odds ratio [OR] = 0.722, 95% confidence interval [CI]: 0.532-0.980, p = 0.037). There was also a link between the VDR FokI polymorphism and periodontitis in the overall population (dominant model: OR = 1.459, 95% CI: 1.050-2.028, p = 0.025 and allelic model: OR = 1.386, 95% CI: 1.026-1.874, p = 0.034) and in Chinese participants (dominant model: OR = 1.813, 95% CI: 1.185-2.774, p = 0.006; allelic model: OR = 1.602, 95% CI: 1.044-2.459, p = 0.031) when stratified by race. The FokI variant was also correlated with aggressive periodontitis (AP) (dominant model: OR = 2.204, 95% CI: 1.148-4.231, p = 0.018; allelic model: OR = 2.017, 95% CI: 1.365-2.980, p = 0.000; and recessive model: OR = 2.903, 95% CI: 1.520-5.542, p = 0.001). We also showed a correlation between the VDR TaqI variant and periodontitis susceptibility in Caucasian populations (dominant model: OR = 0.525, 95% CI: 0.318-0.866, p = 0.012). The results revealed that there was no relationship between the VDR ApaI gene polymorphism and periodontitis. Conclusions: There was a link between the VDR BsmI and FokI gene polymorphisms and periodontitis in the overall population. In addition, the FokI polymorphism was correlated with AP. There was a link between the TaqI polymorphism and periodontitis in the Caucasian population. The VDR Apal variant, however, was not correlated with periodontitis.
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