Genetic Variants of IL-12 RB1 and SARS Susceptibility in Chinese
Author Information
Author(s): Tang Fang, Liu Wei, Zhang Fang, Xin Zhong-Tao, Wei Mao-Ti, Zhang Pan-He, Yang Hong, Ly Hinh, Cao Wu-Chun
Primary Institution: Beijing Institute of Microbiology and Epidemiology
Hypothesis
Polymorphisms of the IL-12 receptor B1 gene might be associated with SARS susceptibility.
Conclusion
Genetic variants of IL-12RB1 confer genetic susceptibility to SARS infection in the Chinese population.
Supporting Evidence
- Individuals with the +1664 C/T genotype had a 2.09-fold increased risk of developing SARS.
- The study identified a risk haplotype (GCCT) associated with SARS infection.
- Genetic variants of IL-12RB1 were not associated with disease progression.
Takeaway
Some people have genes that make them more likely to get sick from SARS, a type of virus. This study looked at those genes in Chinese people.
Methodology
A case-control study was conducted comparing 115 SARS patients with 141 close contacts and 155 healthy controls, analyzing four SNPs of the IL-12RB1 gene.
Potential Biases
Potential bias due to the selection of control groups, as close contacts may have different genetic backgrounds compared to healthy controls.
Limitations
The study had a relatively small sample size and not all subjects were genotyped due to inadequate DNA samples.
Participant Demographics
Participants included 115 SARS patients and two control groups: 141 close contacts and 155 healthy blood donors, all of Han ethnicity.
Statistical Information
P-Value
0.044 for +1664 C/T genotype comparison with control A
Confidence Interval
95% CI, 1.90–7.16 for CT genotype and 95% CI, 1.79–13.37 for TT genotype
Statistical Significance
p<0.05
Digital Object Identifier (DOI)
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