Genetic Variations in ESR1 and EGF and Their Impact on Breast Cancer
Author Information
Author(s): Einarsdóttir Kristjana, Darabi Hatef, Li Yi, Low Yen Ling, Li Yu Qing, Bonnard Carine, Sjölander Arvid, Czene Kamila, Wedrén Sara, Liu Edison T, Hall Per, Humphreys Keith, Liu Jianjun
Primary Institution: Centre for Health Services Research, School of Population Health, University of Western Australia
Hypothesis
Does common genetic variation in the ESR1 and EGF genes affect breast cancer risk, tumor characteristics, or survival?
Conclusion
The study found no strong association between common variants in the ESR1 and EGF genes and breast cancer risk, tumor characteristics, or survival.
Supporting Evidence
- The study genotyped 157 SNPs in ESR1 and 54 SNPs in EGF.
- 1,590 breast cancer cases and 1,518 controls were included in the analysis.
- No significant associations were found after adjusting for multiple comparisons.
Takeaway
The researchers looked at genes related to breast cancer but didn't find strong links between the genes they studied and the disease.
Methodology
The study involved genotyping SNPs in ESR1 and EGF in breast cancer cases and controls, assessing associations using logistic regression and Cox models.
Potential Biases
Oversampling of long-term hormone users and those with diabetes could have introduced bias.
Limitations
The study may have reduced power due to non-participation of some deceased cases and inability to genotype certain SNPs.
Participant Demographics
Swedish-born women aged 50-74, including 1,590 breast cancer cases and 1,518 controls.
Statistical Information
P-Value
0.001
Confidence Interval
0.76-1.09
Statistical Significance
p<0.05
Digital Object Identifier (DOI)
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