Although the developmental stages of gastric carcinoma are still not clear, the constantly generated reactive oxygen and nitrogen species (ROS/RNS) may contribute to the process of carcinogenesis by interacting with DNA. 8-oxoguanine DNA glycosylase-1 (OGG1) is an enzyme involved in base excision repair of 8-oxoguanine that is one of the premutagenic lesions generated by ROS in DNA. The bulky adducts, are recognized and repaired by nucleotid excision repair (NER) enzymes, including xeroderma pigmentosum C and D (XPC, XPD). Eligible 106 gastric cancer patients and 116 cancer-free individuals constituted the study and control groups, respectively. Association between OGG1 Ser326Cys, XPC Lys939Gln, XPD Lys751Gln polymorphisms and the susceptibility tho cancer and the oxidative stress status were evaluated. DNA was extracted from peripheral blood cells and genotypes were determined by using PCR-RFLP. Serum nitric oxide, albumin concentrations, total antioxidant status and Helicobacter pylori IgG were determined. Serum albumin and nitric oxide of cancer patients were lower than that of the controls (P < 0.05). None of the evaluated polymorphisms or Helicobacter pylori IgG seropositivity associated with increased risk of gastric cancer, despite of the increased oxidative stress in cancer patients.
机构:
Hlth Council Murcia, Dept Epidemiol, Murcia, SpainCatalan Inst Oncol, Translat Res Lab, IDIBELL, Barcelona, Spain
Navarro, Carmen
;
Quiros, Jose R.
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机构:
Publ Hlth Directorate Hlth & Social Serv Asturias, Oviedo, SpainCatalan Inst Oncol, Translat Res Lab, IDIBELL, Barcelona, Spain
Quiros, Jose R.
;
Allen, Naomi
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机构:
Univ Oxford, Epidemiol Unit, Canc Res UK, Oxford, EnglandCatalan Inst Oncol, Translat Res Lab, IDIBELL, Barcelona, Spain
Allen, Naomi
;
Key, Tim
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机构:
Univ Oxford, Epidemiol Unit, Canc Res UK, Oxford, EnglandCatalan Inst Oncol, Translat Res Lab, IDIBELL, Barcelona, Spain
Key, Tim
;
Bingham, Sheila
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机构:Catalan Inst Oncol, Translat Res Lab, IDIBELL, Barcelona, Spain
Bingham, Sheila
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Caldas, Carlos
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机构:
Univ Cambridge, Canc Genom Program, Dept Oncol, Hutchison MRC Res Ctr, Cambridge, EnglandCatalan Inst Oncol, Translat Res Lab, IDIBELL, Barcelona, Spain
Caldas, Carlos
;
Linseisen, Jakob
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机构:
German Canc Res Ctr, Unit Human Nutr & Canc Prevent, D-6900 Heidelberg, Germany
German Canc Res Ctr, Div Clin Epidemiol, D-6900 Heidelberg, GermanyCatalan Inst Oncol, Translat Res Lab, IDIBELL, Barcelona, Spain
Linseisen, Jakob
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Nagel, Gabriele
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机构:
German Canc Res Ctr, Unit Human Nutr & Canc Prevent, D-6900 Heidelberg, Germany
German Canc Res Ctr, Div Clin Epidemiol, D-6900 Heidelberg, GermanyCatalan Inst Oncol, Translat Res Lab, IDIBELL, Barcelona, Spain
Nagel, Gabriele
;
Overvad, Kim
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机构:
Univ Aarhus, Inst Epidemiol & Social Med, Aarhus, DenmarkCatalan Inst Oncol, Translat Res Lab, IDIBELL, Barcelona, Spain
机构:
Hlth Council Murcia, Dept Epidemiol, Murcia, SpainCatalan Inst Oncol, Translat Res Lab, IDIBELL, Barcelona, Spain
Navarro, Carmen
;
Quiros, Jose R.
论文数: 0引用数: 0
h-index: 0
机构:
Publ Hlth Directorate Hlth & Social Serv Asturias, Oviedo, SpainCatalan Inst Oncol, Translat Res Lab, IDIBELL, Barcelona, Spain
Quiros, Jose R.
;
Allen, Naomi
论文数: 0引用数: 0
h-index: 0
机构:
Univ Oxford, Epidemiol Unit, Canc Res UK, Oxford, EnglandCatalan Inst Oncol, Translat Res Lab, IDIBELL, Barcelona, Spain
Allen, Naomi
;
Key, Tim
论文数: 0引用数: 0
h-index: 0
机构:
Univ Oxford, Epidemiol Unit, Canc Res UK, Oxford, EnglandCatalan Inst Oncol, Translat Res Lab, IDIBELL, Barcelona, Spain
Key, Tim
;
Bingham, Sheila
论文数: 0引用数: 0
h-index: 0
机构:Catalan Inst Oncol, Translat Res Lab, IDIBELL, Barcelona, Spain
Bingham, Sheila
;
Caldas, Carlos
论文数: 0引用数: 0
h-index: 0
机构:
Univ Cambridge, Canc Genom Program, Dept Oncol, Hutchison MRC Res Ctr, Cambridge, EnglandCatalan Inst Oncol, Translat Res Lab, IDIBELL, Barcelona, Spain
Caldas, Carlos
;
Linseisen, Jakob
论文数: 0引用数: 0
h-index: 0
机构:
German Canc Res Ctr, Unit Human Nutr & Canc Prevent, D-6900 Heidelberg, Germany
German Canc Res Ctr, Div Clin Epidemiol, D-6900 Heidelberg, GermanyCatalan Inst Oncol, Translat Res Lab, IDIBELL, Barcelona, Spain
Linseisen, Jakob
;
Nagel, Gabriele
论文数: 0引用数: 0
h-index: 0
机构:
German Canc Res Ctr, Unit Human Nutr & Canc Prevent, D-6900 Heidelberg, Germany
German Canc Res Ctr, Div Clin Epidemiol, D-6900 Heidelberg, GermanyCatalan Inst Oncol, Translat Res Lab, IDIBELL, Barcelona, Spain
Nagel, Gabriele
;
Overvad, Kim
论文数: 0引用数: 0
h-index: 0
机构:
Univ Aarhus, Inst Epidemiol & Social Med, Aarhus, DenmarkCatalan Inst Oncol, Translat Res Lab, IDIBELL, Barcelona, Spain