Jun 21, 2020

Polymorphisms in XPC and XPD genes modulate DNA damage in pesticide-exposed agricultural workers of Punjab, North-West India

Molecular Biology Reports
Karashdeep Kaur, Rupinder Kaur


The genetic susceptibility of individuals to the genotoxic effect of pesticides may be modulated by variations in genes involved in nucleotide excision repair (NER) pathway and therefore plays an important role in the evaluation of occupational risk. We aimed to evaluate the role of xeroderma pigmentosum complementation group C (XPC) Lys939Gln (A2920C, rs2228001), XPC Ala499Val (C2151T, rs2228000), xeroderma pigmentosum complementation group D (XPD) Asp312Asn (G23591A, rs1799793) and XPD Lys751Gln (A35931C, rs13181) in the modulation of DNA damage. A total of 450 subjects (225 pesticide-exposed agricultural workers and 225 age- and sex-matched controls) from Punjab, North-West India were recruited to study DNA damage by alkaline comet assay. Genotyping was carried out by PCR-RFLP using site-specific restriction enzymes. We found significant elevation in DNA damage parameters in pesticide-exposed agricultural workers as compared to the controls (p < 0.01). Association of comet tail length with XPC 939Gln/Gln (CC), XPD 312Asp/Asn (GA) and XPD 312Asn/Asn (AA) genotypes was observed. Frequency of cells showing DNA migration was significantly higher in exposed workers with variant XPC 939Gln/Gln (CC), XPD 312Asp/Asn (GA) and XPD 312...Continue Reading

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Mentioned in this Paper

Hemoglobin D Punjab
DNA Excision Repair Protein ERCC-2
Nucleus of Anterior Commissure
DNA Binding

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