• 1. Department of Laboratory Medicine, West China Hospital, Sichuan University, Chengdu, Sichuan 610041, P. R. China;
  • 2. Department of Clinical Laboratory, Central Hospital of Panzhihua City in Sichuan Province, Sichuan 617067, P. R. China;
YING Binwu, Email: binwuying@126.com
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Objective To investigate the relationship between the gene polymorphism of autophagy-related gene 3 (ATG3) and the development and clinical symptoms of tuberculosis in tuberculosis patients in western China.Methods According to the inclusion and exclusion criteria, 476 tuberculosis patients (tuberculosis group) who were admitted to West China Hospital of Sichuan University from December 2014 to November 2015 and 475 healthy controls (healthy control group) who underwent health examination during the same period were finally included. High-throughput genotyping technology was used to detect genotypes of three single nucleotide polymorphisms (SNPs) (rs2638029, rs2638037, rs3732817) of ATG3 gene, and relevant clinical data of subjects were collected. The relationship between gene polymorphism and susceptibility to tuberculosis and clinical symptoms was analyzed by statistical methods such as χ2 test and logistic regression model.Results Except for GA genotype [odds ratio (OR) =1.375, 95% confidence interval (CI) (1.048, 1.805), P=0.022] and dominant genetic model GG+GA [OR=1.326, 95%CI (1.024, 1.717), P=0.032] in rs2638037, there was no statistically significant difference in the allele frequency, genotype and genetic patterns of rs2638029, rs3732817 and rs2638037 between the two groups (P>0.05), after the adjustment of the gender and age. But after correction by Bonferroni, GA genotype and dominant genetic patterns GG+GA showed no statistical significance between the two groups (P=0.132, 0.201). Haplotype CGA was associated with tuberculosis susceptibility [OR=1.262, 95%CI (1.001,1.593), P=0.048]. There was a statistically significant difference in weight loss symptoms among rs2638037 genotypes (χ2=8.131, P=0.017).Conclusions The haplotype CGA of three SNPs of ATG3 gene may be involved in the development of tuberculosis. The rs2638037 single nucleotide polymorphism may be related to weight loss, and more research is needed in the future.

Citation: LI Jing, WU Lijuan, HU Xuejiao, ZHAO Zhenzhen, LÜ Yanghua, YING Binwu. Correlation between ATG3 gene polymorphism and susceptibility and symptoms of tuberculosis patients in western China. West China Medical Journal, 2019, 34(8): 850-856. doi: 10.7507/1002-0179.201907071 Copy

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