首页|Risk modification of colorectal cancer susceptibility by interleukin-8-251T＞A polymorphism in Malaysians
Risk modification of colorectal cancer susceptibility by interleukin-8-251T＞A polymorphism in Malaysians
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NETL
NSTL
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AIM:To investigate the allele and genotype frequencies and associated risk of interleukin (IL)-8-251T＞A polymorphism on colorectal cancer (CRC) susceptibility risk.METHODS:Peripheral blood samples of 255 normal controls and 255 clinically and histopathologically confirmed CRC patients were genotyped for IL-8-251T＞A polymorphism employing allele-specific polymerase chain reaction.The relative association of variant allele and genotypes with CRC susceptibility risk was determined by calculating the odds ratios (ORs).Corresponding x2 tests on the CRC patients and controls were carried out and 95％ confidence intervals (CIs) were determined using Fisher's exact test.The allele frequencies and its risk association were calculated using FAMHAP,haplotype association analysis software.RESULTS:On comparing the frequencies of genotypes of patients and controls,the homozygous variant AA was significantly higher in CRC patients (P =0.002)compared to controls.Investigation on the association of the polymorphic genotypes with CRC susceptibility risk,showed that the homozygous variant IL-8-251AA had a significantly increased risk with OR 3.600 (95％CI:1.550-8.481,P =0.001).In the case of allele frequencies,variant allele A of IL-8-251 showed a significantly increased risk of CRC predisposition with OR 1.32(95％ CI:1.03-1.69,P =0.003).CONCLUSION:Variant allele and genotype of IL-8 (-251T＞A) was significantly associated with CRC susceptibility risk and could be considered as a high-risk variant for CRC predisposition.
NETL
NSTL
万方数据
