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  • Title: Association between single nucleotide polymorphism (rs4252424) in TRPV5 calcium channel gene and lead poisoning in Chinese workers.
    Author: Liu J, Zhang L, Feng L, Xu M, Gao Y, Zhou P, Yu Z, Zhu B, An Y, Zhang H.
    Journal: Mol Genet Genomic Med; 2019 Mar; 7(3):e562. PubMed ID: 30666830.
    Abstract:
    BACKGROUND: Lead (Pb) is broadly used in various industries and causes irreversible damage to human tissues, organs, and systems. Studies have revealed that lead exerts toxic effects via interfering with calcium channel. METHODS: In the present study, we investigated whether single nucleotide polymorphisms (SNPs) in TRPV5, a calcium channel-related gene, were associated with lead exposure susceptibility. By using TaqMan SNP genotyping, we performed genotyping of eight TRPV5 tag-SNPs in 1,130 lead-exposed Chinese workers with similar lead exposure level. RESULTS: Single nucleotide polymorphism rs4252424 was significantly associated with lead susceptibility, measured by blood lead level (BLL) (β = -0.069, plinear  = 0.029). However, there was no significant association between any other seven SNPs and BLL. The further expression Quantitative Trait Loci displayed that CC genotype of rs4252424 is significant associated with higher BLL than CT (p < 0.0001). CONCLUSION: We conclude that SNP rs4252424 has the potential to evaluate lead susceptibility in the Chinese occupational population, and further enhance lead exposure prevention and intervention.
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