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1.
Pulm Med ; 2020: 7649038, 2020.
Article in English | MEDLINE | ID: mdl-32257438

ABSTRACT

Lung cancer remains the most common cancer in the world. The genetic polymorphisms (rs2853669 in TERT, rs1052133 in OGG1, and rs16969968 in CHRNA5 genes) were shown to be strongly associated with the risk of lung cancer. Our study's aim is to elucidate whether these polymorphisms predispose Eastern Algerian population to non-small-cell lung cancer (NSCLC). To date, no study has considered this association in the Algerian population. This study included 211 healthy individuals and 144 NSCLC cases. Genotyping was performed using TaqMan probes and Sanger sequencing, and the data were analyzed using multivariate logistic regression adjusted for covariates. The minor allele frequencies (MAFs) of TERT rs2853669, CHRNA5 rs16969968, and OGG1 rs1052133 polymorphisms in controls were C: 20%, A: 31%, and G: 29%, respectively. Of the three polymorphisms, none shows a significant association, but stratified analysis rs16969968 showed that persons carrying the AA genotype are significantly associated with adenocarcinoma risk (pAdj = 0.03, ORAdj = 2.55). Smokers with an AA allele have a larger risk of lung cancer than smokers with GG or GA genotype (pAdj = 0.03, ORAdj = 3.91), which is not the case of nonsmokers. Our study suggests that CHRNA5 rs16969968 polymorphism is associated with a significant increase of lung adenocarcinoma risk and with a nicotinic addiction.


Subject(s)
DNA Glycosylases/genetics , Genetic Predisposition to Disease/genetics , Lung Neoplasms/genetics , Nerve Tissue Proteins/genetics , Polymorphism, Single Nucleotide/genetics , Receptors, Nicotinic/genetics , Telomerase/genetics , Algeria , Case-Control Studies , Female , Humans , Male , Middle Aged
2.
Dis Markers ; 2017: 7850708, 2017.
Article in English | MEDLINE | ID: mdl-28655970

ABSTRACT

BACKGROUND: A possible association between the TACC3 rs798766 polymorphism and urinary bladder cancer risk has been indicated in published literature. We performed this meta-analysis as a synthesis of all relevant data to summarize currently available evidence and to provide estimation with increased precision. METHODS: EMBASE, PubMed, Google Scholar, and Wanfang Data were searched. "rs798766" and "urinary bladder cancer" were used as the search terms. A total of 6 eligible studies were identified, in which 8194 cases and 50,165 controls were investigated. Meta-analysis was performed using extracted data. Subgroup analysis by ethnicity was also performed. Population attributable risk (PAR) was calculated. RESULTS: We found a significant association between rs798766[T] and increased risk of bladder cancer, allelic[T] OR = 1.27, 95%CI = 1.20-1.33. Subgroup analysis by ethnicity revealed similar results, allelic[T] OR = 1.24, 95%CI = 1.17-1.32 in Caucasian subjects and allelic[T] OR = 1.33, 95%CI = 1.21-1.46 in Asian subjects. PAR based on pooled allelic ORs and the frequency of the risk allele in control subjects was 4.63% in the overall population and 3.92% in Asians and 4.36% in Caucasians. CONCLUSION: rs798766 is associated with increased risk of bladder cancer, and no ethnic difference was found.


Subject(s)
Microtubule-Associated Proteins/genetics , Polymorphism, Single Nucleotide , Urinary Bladder Neoplasms/genetics , Asian People/genetics , Female , Humans , Male , Urinary Bladder Neoplasms/ethnology , Urinary Bladder Neoplasms/pathology , White People/genetics
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