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    Wyświetlanie 1-6 z 6
    Tytuł:
    Association of Polymorphism of Lys589glu Exo1 Gene with the Risk of Colorectal Cancer in the Polish Population
    Autorzy:
    Kabziński, Jacek
    Przybylowska, Karolina
    Mik, Michał
    Sygut, Andrzej
    Dziki, Łukasz
    Dziki, Adam
    Majsterek, Ireneusz
    Powiązania:
    https://bibliotekanauki.pl/articles/1395790.pdf
    Data publikacji:
    2014-08-01
    Wydawca:
    Index Copernicus International
    Tematy:
    colorectal cancer
    polymorphisms
    EXO1
    DNA repair
    Opis:
    The incidence of colorectal cancer (CRC) is increasing from year to year. Despite intensive research CRC etiology remains unknown. Studies suggest that at the basis of the process of carcinogenesis can lie reduced efficiency of DNA repair mechanisms, often caused by polymorphisms in DNA repair genes. The aim of the study was to determine the relationship between gene polymorphism Lys589Glu of EXO1 gene and modulation of the risk of colorectal cancer in the Polish population. Determination of the molecular basis of carcinogenesis process and predicting increased risk will allow qualifying patients to increased risk group and including them in preventive program. Material and methods. The material used in study was blood collected from 130 patients diagnosed with colorectal cancer. The control group consisted of 135 healthy people. Genotyping was performed by TaqMan method. Results. The results obtained indicate that the genotype Lys/Glu is associated with an increased risk of colorectal cancer (OR 1.811, 95% Cl 1.031-3.181, p = 0.038). Conclusion. On the basis of these results, we conclude that Exo1 gene polymorphism Lys589Glu may be associated with an increased risk of colorectal cancer.
    Źródło:
    Polish Journal of Surgery; 2014, 86, 8; 370-373
    0032-373X
    2299-2847
    Pojawia się w:
    Polish Journal of Surgery
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Lack of Association Between the 135G/C Rad51 Gene Polymorphism and the Risk of Colorectal Cancer Among Polish Population
    Autorzy:
    Mucha, Bartosz
    Przybyłowska-Sygut, Karolina
    Dziki, Łukasz
    Dziki, Adam
    Sygut, Andrzej
    Majsterek, Ireneusz
    Powiązania:
    https://bibliotekanauki.pl/articles/1396683.pdf
    Data publikacji:
    2012-07-01
    Wydawca:
    Index Copernicus International
    Tematy:
    polymorphism
    135G/C RAD51 gene
    colorectal cancer
    Opis:
    One of the major causes of carcinogenesis is loss of genome stability. RAD51 in process of homologous recombination (HR) played crucial role in maintenance integrity of genome through initiate of DNA double strand breaks repair. Presence of single nucleotide polymorphism (SNP) in RAD51 gene could change the capacity of DNA repair and altered the response to damaging agents. Research on potential impact of genetic variability on development and progression CRC may contribute to setting new genetic markers or/and determined individual susceptibility to CRC.The aim of the study. This study was designed to evaluate the effect of 135 G/C (rs1801320) RAD51 polymorphism located in the 5' untraslated region on the risk and progression of CRC.Material and methods. The subjects consisted of histologically confirmed colorectal cancer (n = 200) and controls (n = 200) with lack of previous history of cancer. The distribution of genotypes was determined by restriction fragment length polymorphism PCR (RFLP - PCR). Statistical analysis was based on multivariate regression model.Results and conclusion. Our study reveal no significance association of 135 G/C RAD51 polymorphism with occurrence and progression of colorectal cancer.
    Źródło:
    Polish Journal of Surgery; 2012, 84, 7; 358-362
    0032-373X
    2299-2847
    Pojawia się w:
    Polish Journal of Surgery
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Association of base excision repair pathway genes OGG1, XRCC1 and MUTYH polymorphisms and the level of 8-oxo-guanine with increased risk of colorectal cancer occurrence
    Autorzy:
    Kabziński, Jacek
    Majsterek, Ireneusz
    Powiązania:
    https://bibliotekanauki.pl/articles/2152985.pdf
    Data publikacji:
    2022
    Wydawca:
    Instytut Medycyny Pracy im. prof. dra Jerzego Nofera w Łodzi
    Tematy:
    XRCC1
    DNA repair
    OGG1
    MUTYH
    oxidative stress
    cancer
    Opis:
    Objectives Reduced efficiency of DNA repair systems has long been a suspected factor in increasing the risk of cancer. In this work authors investigate influence of selected polymorphisms of DNA repair genes (XRCC1, OGG1 and MUTYH) and level of oxidative damage (measured as level of 8-oxo-guanine, 8-oG) on modulation of the risk of colorectal cancer. Material and Methods In group of 324 patients with colorectal cancer the occurrence of polymorphic variants in Ser326Cys of OGG1, Arg399Gln of XRCC1 and Gln324His of MUTYH were studied with TaqMan technique. In addition level of 8-oG in isolated DNA was determined. Results Studied polymorphisms of OGG1, XRCC1 and MUTYH genes influence the risk of CRC: OGG1 Ser326Cys (OR = 1.259, 95% CI: 1.058–1.499, p = 0.007), XRCC1 Arg399Gln (OR = 2.481, 95% CI: 1.745–3.529, p < 0.0001) and MUTYH Gln324His (OR = 1.421, 95% CI: 1.017–1.984, p = 0.039) increase the risk. At the same time, studies examined level of 8-oG for each of the genotypes in both the patient and control group, and have shown that OGG1 Ser326Cys and XRCC1 Arg399Gln are associated with elevated 8-oG level, while MUTYH Gln324His is not, suggesting, that in case of OGG1 Ser326Cys and XRCC1 Arg399Gln CRC risk modulation is connected to mechanisms associated with 8-oG levels. Conclusions This work shows that patients with CRC not only have an increased level of 8-oG and that the studied polymorphisms modulate risk of cancer, but also indicate a relationship between these 2 phenomena, which may contribute to a better understanding of the mechanism of neoplastic process in case of reduced effectiveness of DNA repair mechanisms.
    Źródło:
    International Journal of Occupational Medicine and Environmental Health; 2022, 35, 5; 625-633
    1232-1087
    1896-494X
    Pojawia się w:
    International Journal of Occupational Medicine and Environmental Health
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    An association of the MCP-1 and CCR2 single nucleotide polymorphisms with colorectal cancer prevalence
    Autorzy:
    Walczak, Anna
    Przybyłowska-Sygut, Karolina
    Sygut, Andrzej
    Cieślak, Adrianna
    Mik, Michał
    Dziki, Łukasz
    Dziki, Adam
    Majsterek, Ireneusz
    Powiązania:
    https://bibliotekanauki.pl/articles/1393280.pdf
    Data publikacji:
    2017
    Wydawca:
    Index Copernicus International
    Tematy:
    colorectal cancer
    MCP-1
    CCR-2
    single nucleotide polymorphisms
    Opis:
    The aim of the study: We evaluated the connection between the presence of the -2518 A/G MCP-1 as well as 190 G/A CCR2 polymorphic variants and colorectal cancer (CRC) occurrence. Material and methods: Study group consisted of subjects with different stages of CRC as well as healthy controls. Genotypes were determined by polymerase chain reaction-restriction fragment length polymorphism (PCR-RFLP) method. Results: W observed an association between the colorectal cancer and the GG genotype of the -2518 A/G MCP-1 single nucleotide polymorphism. No statistically significant correlation was found between CRC and the 190 G/A CCR2 polymorphism. Conclusion: The results of this study support the hypothesis that polymorphism in the MCP-1 gene may contribute to the etiology of colorectal cancer.
    Źródło:
    Polish Journal of Surgery; 2017, 89, 5; 1-5
    0032-373X
    2299-2847
    Pojawia się w:
    Polish Journal of Surgery
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Association of the cytochrome P450 and arylamine N-acetyltransferase gene polymorphisms with the incidence of head and neck cancer in Polish population
    Autorzy:
    Gogolewska, Monika
    Kabziński, Jacek
    Majsterek, Ireneusz
    Powiązania:
    https://bibliotekanauki.pl/articles/23381296.pdf
    Data publikacji:
    2023-12-15
    Wydawca:
    Instytut Medycyny Pracy im. prof. dra Jerzego Nofera w Łodzi
    Tematy:
    xenobiotics
    head and neck cancer
    CYP1A
    NAT2
    CYP2D
    NAT1
    Opis:
    Objectives Head and neck cancer (HNC) is one of the most common cancers. Most exogenous HNC is head and neck squamous cell carcinomas. Scientists are striving to develop diagnostic tests that will allow the prognosis of HNC. The aim of the study was to determine the risk of HNC. The research concerned changes caused by polymorphisms in genes encoding proteins responsible for the metabolism of xenobiotics. Material and Methods In group of 280 patients with HNC, the occurrence of polymorphic variants in NAT1(rs72554606), NAT2(rs1799930), CYP1A(rs1799814), CYP2D(rs3892097) were studied with TaqMan technique. The control group consisted of 260 cancer free people. The TNM scale was analyzed. Gene interactions of genotyped polymorphisms were investigated. The effects of smoking and alcohol consumption on HNC were assessed. Results The results indicated an increased risk of HNC in NAT1 polymorphisms in the GC genotype (OR = 1.772, 95% CI: 1.184–2.651, p = 0.005) and NAT2 polymorphism in the GA genotype (OR = 1.506, 95% CI: 1.023–2.216, p = 0.037). The protective phenomenon in the CYP1A polymorphism the GT genotype (OR = 0.587, 95% CI: 0.381–0.903, p = 0.015) and the TT genotype (OR = 0.268, 95% CI: 0.159–0.452, p = 0.001). The coexistence of GA-GC polymorphisms (OR = 2.687, 95% CI: 1.387–5.205, p = 0.003) in NAT2-NAT1 genes increases the risk of HNC. Risk-reducing effect in the polymorphism GG-GT (OR = 0.340, 95% CI: 0.149–0.800, p = 0.011), GG-TT (OR = 0.077, 95% CI: 0.028–0.215, p < 0.0001), GA-TT (OR = 0.250, 95% CI: 0.100–0.622, p = 0.002), AA-GT (OR = 0.276, 95% CI: 0.112–0.676, p = 0.002) in NAT2-CYP1A genes. In the CYP2D-CYP1A genes in the polymorphisms CT-CC (OR = 0.338, 95% CI: 0.132–0.870, p = 0.020), TT-GG (OR = 0.100, 95% CI: 0.027–0.359, p = 0.001), TT-GC (OR = 0.190, 95% CI: 0.072–0.502, p = 0.0004), TT-CC (OR = 0.305, 95% CI: 0.107–0.868, p = 0.024). Correlation was noted between cigarette smoking and HNC (OR = 7.297, 95% CI: 4.989–10.674, p < 0.0001) and consuming alcohol (OR = 1.572, 95% CI: 1.003–2.464, p = 0.047). Conclusions The CYP1A polymorphism shows a protective association with HNC. On the other hand, NAT2, NAT1 polymorphism influence the susceptibility to developing HNC. The coexistence of the NAT2-NAT1 genotypes increases the risk of HNC. In contrast, NAT1-CYP1A and CYP1A-CYP2D reduce this risk. Smoking and alcohol consumption increase the incidence of HNC.
    Źródło:
    International Journal of Occupational Medicine and Environmental Health; 2023, 36, 6; 812-824
    1232-1087
    1896-494X
    Pojawia się w:
    International Journal of Occupational Medicine and Environmental Health
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Association of XRCC6 C1310G and LIG4 T9I polymorphisms of NHEJ DNA repair pathway with risk of colorectal cancer in the Polish population
    Autorzy:
    Balinska, Kinga
    Wilk, Damian
    Filipek, Beata
    Mik, Michal
    Zelga, Piotr
    Skubel, Pawel
    Dziki, Łukasz
    Dziki, Adam
    Mucha, Bartosz
    Kabziński, Jacek
    Majsterek, Ireneusz
    Powiązania:
    https://bibliotekanauki.pl/articles/1391955.pdf
    Data publikacji:
    2019
    Wydawca:
    Index Copernicus International
    Tematy:
    Colorectal Neoplasms/genetics
    DNA-Binding Proteins/genetics
    Genetic Predisposition to Disease/genetics
    Genotype
    Polymorphism
    Single Nucleotide
    Opis:
    Introduction: Colorectal cancer is the second most common cancer worldwide. DNA double strand breaks (DSBs) are the most dangerous lesions which can lead to carcinogenesis. Nonhomologous end joining (NHEJ) is an important pathway, that allows for recovering DNA by direct end joining. The XRCC6 and LIG4 genes encode respectively Ku70 protein and human ATP-dependent DNA ligase, which are the components of the NHEJ repair pathway. The aim of our study was to evaluate the influence of XRCC6 C1310G and LIG4 T9I genes polymorphisms on colorectal cancer risk among Polish population. Materials and method: Genotyping was performed using TaqMan probes based on analysis of PCR products amplified in Real Time PCR. The research has been carried out on the material obtained from 100 patients with colorectal cancer and 100 cancer-free individuals who were age and sex-matched as a control group. The results were developed using the chi – squer test and odds ratio (OR). Results: Odd ratio analysis indicates reduced risk of colorectal cancer for LIG4 T9I polymorphism in heterozygotus model C/T (OR= 0.2717 95% CI= 0.1247-0,5918) and homozygous model T/T (OR= 0.3593 95% CI= 0.1394-0.9266). Similar situation we observed for XRCC6 C1310G gene polymorphism, which indicated on heterozygotus variant C/G (OR= 0.1181 95% CI= 0.0145-0.964) and homozygotus variant G/G (OR= 0.0972 95% CI= 0.0097-0.9713) to decrease the risk of colorectal cancer. Conslusions: Our research revealed XRCC6 C1310G and LIG4 T9I polymorphisms are associated with diminished risk of colorectal cancer. However, to confirm obtained results, a further investigations should be carried out.
    Źródło:
    Polish Journal of Surgery; 2019, 91, 3; 15-20
    0032-373X
    2299-2847
    Pojawia się w:
    Polish Journal of Surgery
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-6 z 6

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