4.4 Article

Association between the genetic variants of base excision repair pathway genes and allergic rhinitis susceptibility in Chinese children

期刊

WORLD ALLERGY ORGANIZATION JOURNAL
卷 15, 期 5, 页码 -

出版社

ELSEVIER
DOI: 10.1016/j.waojou.2022.100650

关键词

Allergic rhinitis; Genetic variants; Susceptibility; Base excision repair

资金

  1. National Natural Science Grant of China [81970861]
  2. Guangdong Province Natural Science Grant [2021A1515010940]
  3. Science and Technology Program of Guangzhou [202102020079]

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This study investigated the association between 20 potentially functional single nucleotide polymorphisms (SNPs) in 6 base excision repair pathway genes and allergic rhinitis (AR) susceptibility in a Chinese population. The study found that hOGG1 rs1052133 and XRCC1 rs2682585 polymorphisms were associated with decreased AR risk. Stratification analysis further revealed different associations between genotypes and AR risk in different age and severity subgroups.
Background: Allergic rhinitis (AR) is a frequent inflammatory disorder of the upper respiratory tract, which has complex patterns of inheritance. Accumulating evidence has shown the key roles of DNA damage in inflammatory diseases, and the base excision repair (BER) is the primary pathway responsible for DNA repair during inflammation. Methods: Here, we performed a case-control study to investigate the associations between 20 potentially functional single nucleotide polymorphisms (SNPs) in 6 BER pathway genes (PARP1, hOGG1, FEN1, APEX1, LIG3, and XRCC1) and AR susceptibility in 508 AR cases and 526 controls which originated in China. The odds ratios (ORs) and 95% confidence intervals (CIs) were calculated for evaluating the association strength. Results: We found that hOGG1 rs1052133 G > C and XRCC1 rs2682585 G > A polymorphisms were associated with decreased AR risk (adjusted OR = 0.67, 95% CI = 0.47-0.94, P = 0.022; and adjusted OR = 0.21, 95% CI = 0.06-0.79, P = 0.022, respectively). Stratification analysis suggested that: hOGG1 rs1052133 GC/CC genotype reduced AR risk in subjects among following subgroups: age <60 months, females, and moderate AR; XRCC1 rs2682585 GG genotype decreased AR risk in subjects age >60 months, and LIG3 rs1052536 TT genotype increased AR risk in subjects of severe AR. Conclusion: Our findings indicated that the genetic variants of hOGG1, XRCC1, and LIG3 genes might affect AR susceptibility in the Chinese population, which will provide novel insight into the genetic underpinnings of AR from the DNA damage level.

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