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Association of SOCS1 (- 820) (rs33977706) gene polymorphism with chronic periodontitis: A case-control study in Brazilians.

ABSTRACT: It is evident that the accumulation of periodontal pathogens over the teeth surface triggers periodontitis; however, its aggravation and severity depend on other elements such as environmental factors, systemic health and the host genetic and/or epigenetic background. To address this issue, we investigated the association of two genetic polymorphisms placed on promoter region of SOCS1 gene with chronic periodontal disease. SOCS1 regulates Jak/Kinase signaling pathway and changes in its mRNA expression have been related to different types of cancer and chronic inflammation, including chronic periodontitis. The frequency of alleles and genotypes of two polymorphisms in SOCS1 gene promoter (position - 820 (rs33977706) and position - 1478 (rs33989964)) were analyzed by performing RFLP and TaqMan system in a total of 257 non-smoking subjects. We found a low frequency of A allele and A/A genotype of SOCS1(- 820) polymorphism in the chronic periodontitis group, especially when severe periodontitis samples were separately analyzed (OR = 0.3933; p = 0.0084 (IC95% 0.2112 < ? < 0.7324)), suggesting that A allele plays protective effect against chronic periodontitis. We did not find association between SOCS1-1478 polymorphism and periodontitis. In addition, analysis of SOCS1 (- 820/- 1478) haplotype revealed that the frequency of A(- 820)/CA(- 1478) haplotype decreases in ChrP (p = 0.0089). In conclusion, our study found that SOCS1(- 820) polymorphism is associated with chronic periodontitis.

SUBMITTER: Guedes RA

PROVIDER: S-EPMC4506993 | biostudies-literature | 2015 Sep

REPOSITORIES: biostudies-literature

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Association of SOCS1 (- 820) (rs33977706) gene polymorphism with chronic periodontitis: A case-control study in Brazilians.

Guedes Roger Antoniaci RA Planello Aline Cristiane AC Andia Denise Carleto DC De Oliveira Naila F P NF de Souza Ana Paula AP

Meta gene 20150709

It is evident that the accumulation of periodontal pathogens over the teeth surface triggers periodontitis; however, its aggravation and severity depend on other elements such as environmental factors, systemic health and the host genetic and/or epigenetic background. To address this issue, we investigated the association of two genetic polymorphisms placed on promoter region of SOCS1 gene with chronic periodontal disease. SOCS1 regulates Jak/Kinase signaling pathway and changes in its mRNA expr ...[more]

PMID: 26199896

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Project description:ObjectiveNumerous studies have investigated the associations between herpesviruses and chronic periodontitis; however, the results remain controversial. To derive a more precise estimation, a meta-analysis on all available studies was performed to identify the association between herpesviruses and chronic periodontitis.MethodsA computerized literature search was conducted in December 2014 to identify eligible case-control studies from the PUBMED and EMBASE databases according to inclusion and exclusion criteria. Data were extracted and pooled odds ratios (OR) with 95% confidence intervals (CI) were used to assess the association between herpesviruses and risk of chronic periodontitis. A fixed or random effects model was determined based on a heterogeneity test. Sensitivity analysis was conducted to investigate stability and reliability. Publication bias was investigated using the Begg rank correlation test and Egger's funnel plot.ResultsTen eligible studies were included to investigate the association between Epstein-Barr virus (EBV) and chronic periodontitis. The results showed that EBV has a significant association with chronic periodontitis compared with periodontally healthy group (OR = 5.74, 95% CI = 2.53-13.00, P<0.001). The association between human cytomegalovirus (HCMV) and chronic periodontitis was analyzed in 10 studies. The pooled result showed that HCMV also has a significant association with chronic periodontitis (OR = 3.59, 95% CI = 1.41-9.16, P = 0.007). Similar results were found in the sensitivity analyses. No significant publication bias was observed. Two eligible studies were included to investigate the association between herpes simplex virus (HSV) and chronic periodontitis risk. The association between HSV and chronic periodontitis was inconclusive (OR = 2.81 95% CI = 0.95-8.27, P = 0.06). Only one included study investigated the association between human herpesvirus 7 (HHV-7) and chronic periodontitis risk (OR = 1.00, 95% CI = 0.21-4.86).ConclusionThe findings of this meta-analysis suggest that two members of the herpesvirus family, EBV and HCMV, are significantly associated with chronic periodontitis. There is insufficient evidence to support associations between HSV, HHV-7 and chronic periodontitis.

Dataset Information

Association of SOCS1 (- 820) (rs33977706) gene polymorphism with chronic periodontitis: A case-control study in Brazilians.

Publications

Association of SOCS1 (- 820) (rs33977706) gene polymorphism with chronic periodontitis: A case-control study in Brazilians.

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