Partner: Tadeusz Pietras

University of Lodz (PL)

Recent publications
1.Kwiatkowski D., Czarny P., Gałecki P., Bachurska A., Talarowska M., Orzechowska A., Bobińska K., Bielecka-Kowalska A., Pietras T., Szemraj J., Maes M., Śliwiński T., Variants of Base Excision Repair Genes MUTYH, PARP1 and XRCC1 in Alzheimer's Disease Risk, NEUROPSYCHOBIOLOGY, ISSN: 0302-282X, DOI: 10.1159/000381985, Vol.71, No.3, pp.176-186, 2015
Abstract:

Background: Many clinical studies have shown that oxidative stress pathways and the efficiency of the oxidative DNA damage base excision repair (BER) system are associated with the pathogenesis of Alzheimer's disease (AD). Reduced BER efficiency may result from polymorphisms of BER-related genes. In the present study, we examine whether single nucleotide polymorphisms (SNPs) of BER genes are associated with increased risk of AD. Methods: SNP genotyping was carried out on DNA isolated from peripheral blood mononuclear cells obtained from 120 patients with AD and 110 healthy volunteers. Samples were genotyped for the presence of BER-related SNPs, i.e.XRCC1-rs1799782, rs25487; MUTYH-rs3219489, and PARP1-rs1136410. Results: We found a positive association between AD risk and the presence of G/A genotype variant of the XRCC1 rs25487 polymorphism [odds ratio (OR) = 3.762,95% Cl: 1.793-7.8911. The presence of the A/A genotype of this polymorphism reduced the risk of AD (OR = 0.485,95% Cl: 0.271-0.870). In cases of the PARP1 gene rs1136410 polymorphism, we observed that the T/C variant increases (OR =4.159, 95% Cl: 1.978-8.745) while the T/T variant reduces risk (OR = 0.240,95% Cl: 0.114-0.556) of AD. Conclusions: We conclude that BER gene polymorphisms may play an important role in the etiology of AD. Diagnosing the presence or absence of particular genetic variants may be an important marker of AD. Further research on a larger population is needed. There is also a need to examine polymorphisms of other BER in the context of AD risk.

Keywords:

Alzheimer's disease, Base excision repair, Polymorphisms

Affiliations:
Kwiatkowski D.-other affiliation
Czarny P.-Medical University of Lodz (PL)
Gałecki P.-Medical University of Lodz (PL)
Bachurska A.-Medical University of Lodz (PL)
Talarowska M.-Medical University of Lodz (PL)
Orzechowska A.-other affiliation
Bobińska K.-other affiliation
Bielecka-Kowalska A.-Non-Public Medical Center “Akoria” (PL)
Pietras T.-University of Lodz (PL)
Szemraj J.-Medical University of Lodz (PL)
Maes M.-Deakin University (AU)
Śliwiński T.-University of Lodz (PL)