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Matrix metalloproteinase gene polymorphisms and periodontitis susceptibility: a meta-analysis involving 6,162 individuals.

ABSTRACT: We aimed to systematically investigate the potential association of matrix metalloproteinase (MMP)-9, -3, -2, and -8 gene polymorphisms with susceptibility to periodontitis using meta-analysis. A literature search in PubMed, Embase, and Web of Science was conducted to obtain relevant publications. Finally a total of 16 articles with 24 case-control studies (nine on MMP-9-1562 C/T, seven on MMP-3-1171 A5/A6, four on MMP-2-753C/T, and four on MMP-8-799 C/T) were considered in this meta-analysis. The results based on 2,724 periodontitis patients and 3,438 controls showed that MMP-9-1562C/T, MMP-3-1171 A5/A6, and MMP-8-799C/T polymorphisms were associated with periodontitis susceptibility. No significant association was found between MMP-2-753 C/T and periodontitis susceptibility. Subgroup analyses suggested that the MMP-9-1562 C/T polymorphism reduced chronic periodontitis susceptibility and MMP-3-1171 A5/A6 polymorphism increased chronic periodontitis susceptibility. In summary, current evidence demonstrated that MMP-9-753 C/T polymorphism reduced the risk of periodontitis, MMP-3-1171 5A/6A and MMP-8-799 C/T polymorphisms increased the risk of periodontitis, and MMP-2-753 C/T was not associated with risk of periodontitis.

SUBMITTER: Weng H

PROVIDER: S-EPMC4837403 | biostudies-other | 2016 Apr

REPOSITORIES: biostudies-other

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Associations between matrix metalloproteinase gene polymorphisms and glaucoma susceptibility: a meta-analysis.

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| S-EPMC5081336 | biostudies-literature

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Matrix metalloproteinase-2, -9, and tissue inhibitor of MMP-2 gene polymorphisms in Taiwanese periodontitis patients.

Project description:Background/purpose:Matrix metalloproteinases (MMPs) and tissue inhibitor of MMPs (TIMPs) have been shown to play an important role in the pathogenesis of tissue destruction in periodontitis. The associations between single nucleotide polymorphisms (SNPs) in the promoter regions of MMP-2, MMP-9, and TIMP-2 genes and the risk of aggressive periodontitis (AgP) and chronic periodontitis (CP) were investigated in a Taiwanese population. Materials and methods:MMP-2 C-1306T, C-735T, T-790G, and MMP-9 C-1562T and TIMP-2 G-418C SNPs were genotyped by polymerase chain reaction-restriction fragment length polymorphism analysis in 69 patients and 129 patients with AgP and CP, respectively, and 117 periodontal healthy individuals who served as healthy controls (HC). Chi-square test and logistic regression analysis were used to investigate the possible association of genotypes with periodontitis. Results:No significant differences in the distributions of the C-1306T and C-735T variants between periodontitis and HC were detected. Patients with genotype of MMP-2 -790 TT or T allele of MMP-2-790T/G as compared to genotypes of GT + GG genotypes or G allele, were less susceptible to CP [odds ratio (OR) = 0.50, 95% confidence interval (CI) = 0.25-1.00 and OR = 0.52, 95% CI = 0.28-0.96, respectively]. The frequencies of TIMP-2 G-418C gene polymorphisms in nonsmokers were statistically significantly different among AgP, CP, and HC groups (P = 0.024). The nonalcohol drinking participants with C allele of MMP-9 C-1562T as compared to T allele, were less susceptible to AgP (adjusted OR = 0.4; 95% CI, 0.18-0.90). Conclusion:It is suggested that MMP-2 T-790G, MMP-9 C-1562T, and TIMP-2 G-418C gene polymorphisms might be associated with periodontitis in the Taiwanese Han population.

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Association between Estrogen Receptor-? Gene XbaI and PvuII Polymorphisms and Periodontitis Susceptibility: A Meta-Analysis.

Project description:Certain studies have previously explored the association between the estrogen receptor-? (ER-?) gene polymorphisms and periodontitis susceptibility, although the current results are controversial. The present study, using meta-analysis, aimed to investigate the nature of the genetic susceptibility of the ER-? for developing periodontitis.A comprehensive literature search of PubMed, Embase, CNKI, and Wanfang databases was conducted up to January 8, 2015. Statistical manipulation was performed using Stata version 13.0 software. Odds ratios (ORs) and corresponding 95% confident intervals (CIs) were calculated to estimate the association in five genetic models.A total of 17 eligible case-control studies from seven identified publications consisting of nine studies for the XbaI polymorphism and eight studies for the PvuII polymorphism were included in the meta-analysis. We found elevated risk of periodontitis in XbaI XX genotype carriers. Moreover, subgroup analyses demonstrated increased risk for chronic periodontitis of XbaI XX genotype carriers, specifically in the Chinese Han female population. No significant association was observed between PvuII polymorphism and periodontitis.Current evidence indicated that the homozygote (XX) genotype of ER-? gene XbaI polymorphism, but not PvuII mutation, may increase the risk of chronic periodontitis, specifically in the Chinese Han female population.

| S-EPMC4672125 | biostudies-literature

Association between matrix metalloproteinase-2 and matrix metalloproteinase-9 polymorphisms and endometriosis: A systematic review and meta-analysis.

Project description:Matrix metalloproteinase-2 (MMP-2)-735C/T and MMP-9-1562C/T polymorphisms have been indicated in the predisposition to endometriosis. However, due to the small sample sizes of previous studies, the results remain inconclusive. The present meta-analysis was conducted to detect the association between the two genetic polymorphisms and the risk of endometriosis by pooling all the available data. Electronic databases, including PubMed, Embase, Web of Science and CNKI, were searched comprehensively for studies examining a link between MMP-2 and MMP-9 polymorphisms and endometriosis. The strength of the association was assessed based on the pooled odds ratio with a 95% confidence interval, which was calculated using either the fixed- or random-effect model. Following the inclusion criteria, 6 case-control studies were included. The total number of participants was 2,486 (558 cases and 797 controls concerning the MMP-9-1562C/T polymorphism, and 525 cases and 606 controls concerning the MMP-2-735C/T polymorphism). No significant association was identified between the MMP-2-735C/T or MMP-9-1562C/T polymorphism and endometriosis. In further stratified analysis, no significant association was identified between the MMP-9-1562C/T polymorphism and endometriosis. The present meta-analysis revealed no association between the MMP-2-735C/T and MMP-9-1562C/T polymorphisms and the risk of developing endometriosis. Considering the limitations of the meta-analysis, well-designed studies with larger sample sizes are required.

| S-EPMC4486806 | biostudies-literature

Comprehensive analysis of interleukin-8 gene polymorphisms and periodontitis susceptibility.

Project description:BackgroundAssociations between interleukin-8 (IL-8) gene polymorphisms and periodontitis susceptibility have been investigated in many published studies, but the conclusions are still inconsistent. Therefore, we performed this systematic review and meta-analysis to review which polymorphisms have been researched and to obtain a precise result of the same polymorphism from different studies.ResultsFinally 10 publications involving 1938 patients and 1569 controls were yielded, including 12 polymorphisms. Six studies investigated rs4073 polymorphism; two focused on rs2227306 and rs2227307; two referred to rs2227532 and T-738A; one detected rs2230054, rs1126579 and rs1126580; one inspected A2767T, T11722T2 and C1633T, and one for rs2234671 polymorphism. Of them, IL-8 C1633T and rs1126580 polymorphisms showed positive association while the other ten polymorphisms revealed negative results.Materials and methodsA comprehensive literature search from PubMed, Web of Science, and Chinese National Knowledge Infrastructure was conducted for all potentially relevant studies published before January 2, 2017. Two authors selected the studies and extracted data. The pooled analysis was conducted using the RevMan 5.1 software if a polymorphism was reported by two or more studies.ConclusionsBased on current evidence, the IL-8 rs4073, A2767T, T11722T2, rs2234671, rs2230054, rs1126579, rs2227306, rs2227307, rs2227532, and T-738A polymorphisms were not associated with periodontitis susceptibility; the IL-8 C1633T and rs1126580 polymorphisms were associated with increased risk of periodontitis.

| S-EPMC5564743 | biostudies-literature

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