Genetic Links Between IL4 and IL5 Genes and Asthma Severity
Author Information
Author(s): Maxim B. Freidin, Olga S. Kobyakova, Ludmila M. Ogorodova, Valery P. Puzyrev
Primary Institution: Research Institute for Medical Genetics, Tomsk, Russia
Hypothesis
Do polymorphisms in the IL4 and IL5 genes contribute to the susceptibility and severity of atopic bronchial asthma?
Conclusion
Polymorphisms in the IL4 and IL5 genes are associated with susceptibility to atopic bronchial asthma and may influence the severity of the disease.
Supporting Evidence
- The study found a significant association of the C-703 allele of the IL5 gene with atopic bronchial asthma.
- Genotype GG IL4 was identified as a risk factor for severe asthma.
- Polymorphisms in the IL4 and IL5 genes may influence the clinical course of asthma.
Takeaway
This study found that certain genetic changes in two specific genes can make people more likely to have asthma and affect how bad their asthma is.
Methodology
The study used a transmission/disequilibrium test (TDT) to analyze genetic polymorphisms in families with atopic bronchial asthma and unrelated patients with severe asthma.
Potential Biases
Potential bias due to the sample being limited to a specific ethnic group.
Limitations
The study's findings may not be generalizable beyond the Russian population studied.
Participant Demographics
Participants included 183 children with atopic bronchial asthma and 34 unrelated adults with severe asthma, primarily of Russian ethnicity.
Statistical Information
P-Value
0.007
Confidence Interval
95% CI = 0.15-0.99
Statistical Significance
p<0.05
Digital Object Identifier (DOI)
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