التفاصيل البيبلوغرافية
| العنوان: |
Replication study of SNP associations for colorectal cancer in Hong Kong Chinese. |
| المؤلفون: |
Ho, J. W., Choi, S.-c., Lee, Y.-f., Hui, T. C., Cherny, S. S., Garcia-Barceló, M.-M., Carvajal-Carmona, L., Liu, R., To, S.-h., Yau, T.-k., Chung, C. C., Yau, C. C., Hui, S. M., Lau, P. Y., Yuen, C.-h., Wong, Y.-w., Ho, S., Fung, S. S., Tomlinson, I. P., Houlston, R. S. |
| المصدر: |
British Journal of Cancer; 1/18/2011, Vol. 104 Issue 2, p369-375, 7p, 5 Charts, 1 Graph |
| مصطلحات موضوعية: |
COLON cancer risk factors, CHROMOSOME polymorphism, GENETIC polymorphisms, NUCLEOTIDES, COLON tumors, COMPARATIVE studies, RESEARCH methodology, MEDICAL cooperation, RECTUM tumors, RESEARCH, RESEARCH funding, EVALUATION research, CASE-control method |
| مصطلحات جغرافية: |
HONG Kong (China), CHINA |
| مستخلص: |
Background: Recent genome-wide association studies of colorectal cancer (CRC) have identified common single-nucleotide polymorphisms (SNPs) mapping to 10 independent loci that confer modest increased risk. These studies have been conducted in European populations and it is unclear whether these observations generalise to populations with different ethnicities and rates of CRC.Methods: An association study was performed on 892 CRC cases and 890 controls recruited from the Hong Kong Chinese population, genotyping 32 SNPs, which were either associated with CRC in previous studies or are in close proximity to previously reported risk SNPs.Results: Twelve of the SNPs showed evidence of an association. The strongest associations were provided by rs10795668 on 10p14, rs4779584 on 15q14 and rs12953717 on 18q21.2. There was significant linear association between CRC risk and the number of independent risk variants possessed by an individual (P=2.29 × 10(-5)).Conclusion: These results indicate that some previously reported SNP associations also impact on CRC risk in the Chinese population. Possible reasons for failure of replication for some loci include inadequate study power, differences in allele frequency, linkage disequilibrium structure or effect size between populations. Our results suggest that many associations for CRC are likely to generalise across populations. [ABSTRACT FROM AUTHOR] |
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| قاعدة البيانات: |
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