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Träfflista för sökning "WFRF:(Sun Xiao Feng) srt2:(2005-2009);pers:(Synnerstad Ingrid)"

Sökning: WFRF:(Sun Xiao Feng) > (2005-2009) > Synnerstad Ingrid

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1.
  • Kertat, Khadija, et al. (författare)
  • The Gln/Gln genotype of XPD codon 751 as a genetic marker for melanoma risk and Lys/Gln as an important predictor for melanoma progression : A case control study in the Swedish population
  • 2008
  • Ingår i: Oncology Reports. - : Spandidos Publications. - 1021-335X .- 1791-2431. ; 20:1, s. 179-183
  • Tidskriftsartikel (refereegranskat)abstract
    • The Xeroderma pigmentosum complementation group D (XPD) is a critical protein in the nucleotide excision repair system for DNA damage. Genetic variations in XPD exert an important effect on the capacity of DNA repair. In this study, we examined Lys751Gln polymorphism at the XPD gene in 244 melanoma patients and 251 healthy individuals (as controls) from the south-eastern region of Sweden. The associations of polymorphism with melanoma risk, as well as with melanoma features and pigment phenotypes of the melanoma patients were analysed. DNA was extracted from the mononuclear cells of venous blood of the melanoma patients and controls. XPD codon 751 was genotyped by the PCR restriction fragment length polymorphism technique. Results showed that there was no difference in the distribution of the XPD codon 751 genotypes between the melanoma patients and healthy controls. However, the Gln/Gln genotype was found to be associated with melanoma risk in the male population. Furthermore, the frequency of the Gln/Gln genotype was significantly higher in the early stages of melanomas, whereas Lys/Gln was more frequent in the later stages and in the patients with melanoma located on intermittently UV-exposed areas. No correlations between the polymorphisms and phenotypes of the patients were found. In conclusion, Gln/Gln was a useful genetic marker for melanoma risk in the males, while Lys/Gln was an important predictor for melanoma progression.
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2.
  • Zhang, Hong, et al. (författare)
  • Importance of FAS-1377, FAS-670 and FASL-844 Polymorphisms in Tumor Onset, Progression and Pigment Phenotypes of Swedish Patients With Melanoma : A Case-Control Analysis
  • 2007
  • Ingår i: The Cancer Journal. - : Lippincott Williams & Wilkins. - 1528-9117 .- 1540-336X .- 0765-7846 .- 1292-8658. ; 13:4, s. 233-237
  • Tidskriftsartikel (refereegranskat)abstract
    • PURPOSE: Human skin melanoma at later stages usually has an extremely poor prognosis. It is of importance to search for biologic markers to identify and monitor individuals at risk for melanoma for early diagnosis and to avoid tumor progression. The FAS gene and its natural ligand (FASL) gene initiate the death signal cascade, playing a central role in the apoptotic signaling pathway and tumor growth and metastasis. PATIENTS AND METHODS: In this study, we analyzed polymorphisms in 229 patients with melanoma and 351 age- and gender-matched tumor-free individuals. Genomic DNAs were isolated from mononuclear cells in peripheral vein blood, and the polymorphisms were examined with polymerase chain reaction-restriction fragment length polymorphism techniques. Frequency in distribution of the polymorphisms was compared between the patients with melanoma and the healthy control subjects, and associations with patients' pigment phenotypes, age at diagnosis, and melanoma characteristics were analyzed. RESULTS AND CONCLUSIONS: The FAS-1377, FAS-670, and FASL-844 polymorphisms were not found to be markers of melanoma risk (P > 0.05). In patients with melanoma, frequencies of the FAS-1377, FAS-670, and FASL-844 polymorphisms were different between the patients aged <50 and > or =50 years (P < or = 0.025, P < or = 0.025, and P < or = 0.01). Moreover, the FAS-670 polymorphism correlated with tumor Breslow thickness (P < or = 0.01) and Clark level (P < or = 0.001) and was associated with tumors developing in sun-exposed locations (P < or = 0.001). FAS and FASL were not markers for melanoma risk but might be important in the development and progression of sun-induced melanoma independently of skin type.
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