Impact of Genetic Variations on Myocardial Infarction Risk Related to Fish Consumption
Author Information
Author(s): Karin S Engström, Maria Wennberg, Ulf Strömberg, Ingvar A Bergdahl, Göran Hallmans, Jan-Håkan Jansson, Thomas Lundh, Margareta Norberg, Gerda Rentschler, Bengt Vessby, Staffan Skerfving, Karin Broberg
Primary Institution: Division of Occupational and Environmental Medicine, Lund University, Lund, Sweden
Hypothesis
Do genetic polymorphisms in glutathione-related genes modify the association between eicosapentaenoic+docosahexaenoic acid or methylmercury and risk of first-ever myocardial infarction?
Conclusion
The study found no statistically significant genetic modifying effects on the association between plasma eicosapentaenoic+docosahexaenoic acid or erythrocyte-mercury and risk of myocardial infarction.
Supporting Evidence
- Individuals with certain genetic variations may tolerate higher exposures to methylmercury.
- The study population was part of three prospective health surveillance cohorts.
- Polymorphisms in glutathione-related genes were evaluated for their impact on myocardial infarction risk.
- Results indicated that the GCLM-588 TT genotype may have an impact, but further studies are needed.
- Statistical analyses were performed using conditional logistic regression models.
Takeaway
The study looked at how certain genes might affect heart attack risk from eating fish, but didn't find strong evidence that they do.
Methodology
Genetic polymorphisms were genotyped in 1027 individuals, including 458 cases of myocardial infarction and 569 matched controls, and associations were evaluated using conditional logistic regression.
Limitations
The study had a small number of individuals with certain genotypes, which may have limited the ability to detect statistically significant effects.
Participant Demographics
Participants were from northern Sweden, including 458 cases of first-ever myocardial infarction and 569 matched controls.
Statistical Information
P-Value
0.014
Confidence Interval
95% CI 2.4, 4.5
Statistical Significance
p<0.05
Digital Object Identifier (DOI)
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