Association of Polymorphisms in IL-10, TGF-β1, IFN-γ, and TNF-α Genes with the Susceptibility to Chronic Obstructive Pulmonary Disease in Kerman, Iran
One of the principal cigarette smokes (CS) mediated diseases is chronic obstructive pulmonary disease (COPD).
In the current case-control study, the relationship between the polymorphisms of interleukin-10 (IL-10), transforming growth factor-β1 (TGF-β1) codon 10, TGF-β1 codon 25, interferon-γ (IFN-γ), and tumor necrosis factor-α (TNF-α) in 213 individuals with COPD and susceptibility to the disease, with 100 healthy age and gender-matched people as a control group, was investigated using PCR-ARMS (polymerase chain reaction-amplification refractory mutation system). Moreover, the combination of the polymorphisms of TGF-β1 codon 10.25 regarding this susceptibility was studied in the same condition.
There was a significant difference between polymorphism of TGF-β1 codon 10 (+869 T/C), codon 25 (G+915C), and susceptibility to the disease (OR=0.50; (95 %CI=0.24-1.07, p=0.05), ORCC=5.31; (95% CI: 1.22-23.2); p=0.02), thus polymorphism of IL-10 and TGF-β1 increased the risk of susceptibility to COPD but the polymorphisms of TNF-α (G-308A) and IFN-γ ( + 847 T/A) did not show any association.
All in all, it is recommended that the patients carrying the above-said genotypes should be paid proper attention, especially those who are exposed to chemicals at their workplaces, pollution, and cigarette smoke.
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