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Oncol Rep. 1999 Mar-Apr;6(2):441-4.

L-myc genotypes in Hong Kong Chinese colorectal carcinoma patients.

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Department of Biology, Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong, China.


L-myc genotypes have been correlated with prognosis in different human tumors. Its role in colorectal carcinoma (CRC) is still unclear. This study aimed to assess the L-myc genotypes in 99 Hong Kong Chinese CRC patients by PCR-RFLP techniques. The results obtained were correlated with clinical, histological and pathological parameters and genetic alterations. The observed frequency of L-myc genotypes (LL:LS:SS) was 27:46:26. The ratio of S to L alleles was 0.51:0.49. Distribution of L-myc genotypes and alleles in Hong Kong Chinese CRC was similar to that of healthy Chinese and CRC patients of other ethnic origins. The homozygous SS genotype was significantly associated with Dukes' stages C versus B. Other parameters including sex, differentiation status and survival, and genetic alterations such as p53 and Ki-ras mutations and Dcc LOH had no significant association with L-myc SS genotype.

[Indexed for MEDLINE]

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