Genetic Link to Heart Disease in Doberman Pinschers
Author Information
Author(s): Mausberg Theresa-Bernadette, Wess Gerhard, Simak Julia, Keller Lisa, Drögemüller Michaela, Drögemüller Cord, Webster Matthew T., Stephenson Hannah, Dukes-McEwan Joanna, Leeb Tosso
Primary Institution: Institute of Genetics, Vetsuisse Faculty, University of Bern, Bern, Switzerland
Hypothesis
Can a genome-wide association study identify genetic risk factors for dilated cardiomyopathy in Doberman Pinschers?
Conclusion
A significant genetic association with dilated cardiomyopathy was found on chromosome 5 in Doberman Pinschers.
Supporting Evidence
- 71 Doberman Pinschers with DCM were studied alongside 70 controls.
- A genome-wide significant association was identified on chromosome 5.
- The best-associated SNP showed a raw p-value of 8.36×10−8.
- Validation in an independent cohort confirmed the association.
- Approximately half of the DCM affected Doberman Pinschers carried the risk-allele.
- The study highlights the genetic basis of DCM in Doberman Pinschers.
- Findings may help identify new genes relevant to human DCM cases.
- DCM in Doberman Pinschers is a complex trait influenced by multiple genetic factors.
Takeaway
Scientists studied Doberman Pinschers to find out what genes might cause heart problems, and they found a strong link to a specific part of their DNA.
Methodology
A genome-wide association study was performed using 71 DCM cases and 70 controls from Germany, and validated with an additional cohort from the UK.
Potential Biases
Potential bias in sample selection and the limited genetic diversity within the breed.
Limitations
The study may not capture all genetic factors contributing to DCM due to the complexity of the disease.
Participant Demographics
71 affected Doberman Pinschers (40 males, 31 females, mean age 7.9 years) and 70 controls (28 males, 42 females, mean age 9.3 years) from Germany; 15 affected and 24 controls from the UK.
Statistical Information
P-Value
7.04×10−10
Confidence Interval
3.64–18.24
Statistical Significance
p<0.05
Digital Object Identifier (DOI)
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