* Genetic variations in base excision repair pathway and risk of bladder cancer: a case-control study in the United States.
- Base excision repair (BER) is one of the major cellular DNA repair pathways that repairs small isolated foci of DNA damage including reduced or oxidized single bases or fragments and small, non-bulky adducts. Genetic variations in BER genes may affect DNA repair capacity and increase susceptibility to bladder cancer. In a case-control study of 801 bladder cancer patients and 801 matched controls, we evaluated the associations of 167 single nucleotide polymorphisms (SNPs) from 19 genes of the BER pathway with the risk of bladder cancer. In individual SNP analysis, 13 SNPs in 10 BER pathway genes were significantly associated with bladder cancer risk. The most significant SNP was rs2029167 in the SMUG1 gene. The homozygous variant GG genotype was associated with a 1.42-fold increased risk of bladder cancer (95% confidence interval [CI], 1.11-1.82, P=0.005). Cumulative effect analysis showed joint effects of increased risk of bladder cancer with increasing number of unfavorable genotypes in patients. Classification and regression tree analysis further revealed high-order gene-gene interactions and categorized the study subjects into low-, medium-low-, medium-high-, and high-risk groups. Compared with the low-risk group, the odds ratio for medium-low-, medium-high-, and high-risk group was 1.83 (95% CI: 1.23-2.72), 2.61 (95% CI: 1.79-3.80), and 3.05 (95% CI: 2.08-4.46), respectively (P for trend<0.001). Our results suggest that genetic variations in BER pathway genes modulate the risk of bladder cancer individually and jointly.
=>意義深い, 重大な, 意味のある, 意味ありげな, 重要な
Overview of adj significant
The adj significant has 4 senses (first 4 from tagged texts)
1. (18) significant, important -- (important in effect or meaning; "a significant change in tax
laws"; "a significant change in the Constitution"; "a significant contribution"; "significant
details"; "statistically significant")
2. (9) significant, substantial -- (fairly large; "won by a substantial margin")
3. (3) significant -- (too closely correlated to be attributed to chance and therefore indicating a
systematic relation; "the interaction effect is significant at the .01 level"; "no significant
difference was found")
4. (2) meaning, pregnant, significant -- (rich in significance or implication; "a meaning look")
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PubMed database: last updated on 2020-12-01 (c)sirasawa 2019