c-Ki-ras Mutations in Colorectal Cancer
Author Information
Author(s): Tang W-Y, Elnatan J, Lee Y-S, Goh H-S, Smith D R
Primary Institution: Molecular Biology Laboratory, Tan Tock Seng Hospital
Hypothesis
The study investigates the incidence of c-Ki-ras mutations in colorectal adenocarcinomas over two different time periods.
Conclusion
The increase in colorectal cancer incidence in Singapore is associated with an increase in c-Ki-ras mutations.
Supporting Evidence
- 28% of contemporary colorectal cancer samples showed c-Ki-ras mutations.
- No mutations were found in samples from the earlier period.
- The study indicates a link between increased colorectal cancer incidence and specific genetic mutations.
Takeaway
Scientists looked at old and new samples of colon cancer and found that newer samples had mutations that weren't present in older ones.
Methodology
The study used mismatch-specific oligonucleotide hybridization analysis of exon 1 of the c-Ki-ras proto-oncogene after PCR amplification.
Participant Demographics
Samples were taken from two different time periods: 1962-1966 and 1994-1996.
Statistical Information
P-Value
0.007
Statistical Significance
p=0.007
Digital Object Identifier (DOI)
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