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  • Title: Heterozygous Ins/Del genotype of the CASP8 rs3834129 polymorphism significantly decreases the risk of coal workers' pneumoconiosis in a Chinese Han population: a case-control study.
    Author: Hou ZF, Wang H, Ji SQ, Kang DM, Zhao H, Guo Y, Ma JF, Wang JZ, Ma X, Gao Y.
    Journal: Eur Rev Med Pharmacol Sci; 2021 Dec; 25(24):7726-7733. PubMed ID: 34982434.
    Abstract:
    OBJECTIVE: Coal workers' pneumoconiosis (CWP) is a chronic inflammatory and fibrotic pulmonary disease that involves a complex interaction of multiple environmental and genetic factors. Polymorphism, as a genetic factor, may affect the onset of the disease in susceptible populations. The present study investigated the association between the polymorphisms of six genes and CWP risk in a Chinese Han population. PATIENTS AND METHODS: Six polymorphisms (CASP8 rs3834129, IL1A rs1800587, IL6 rs1800796, IL4 rs2070874, TNFA rs361525, and NLRP3 rs1539019) were examined in 222 CWP subjects and 247 dust-exposed control subjects. RESULTS: The CASP8 rs3834129 Ins/Del genotype significantly decreased CWP risk (p=0.040; adjusted odds ratio [OR] = 0.586; 95% confidence interval [CI] 0.367-0.935) compared with the Ins/Ins genotype. Stratification analyses revealed a significant interaction between the heterozygous Ins/Del genotype and age. Compared with the Ins/Ins + Del/Del genotype, this was particularly evident among subjects aged 41-60 (p<0.001; adjusted OR = 0.054; 95% CI 0.007-0.420) and those with an exposure time of 20-29 years (p=0.014; adjusted OR = 0.392; 95% CI 0.183-0.842). This decreased risk was also found in the group with former smokers (p=0.012; adjusted OR = 0.448; 95% CI 0.238-0.844). Findings revealed that the heterozygous Ins/Del genotype of CASP8 rs3834129 was related to a significantly decreased risk of stage I CWP (p=0.045; adjusted OR = 0.592; 95% CI 0.353-0.992), but not stage II or III CWP. CONCLUSIONS: Our study indicated that the heterozygous Ins/Del genotype of CASP8 rs3834129 significantly decreased CWP risk in a Chinese Han population.
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