Genetic Factors in BSE Susceptibility in Cattle
Author Information
Author(s): Juling Katrin, Schwarzenbacher Hermann, Williams John L, Fries Ruedi
Primary Institution: Technical University of Munich
Hypothesis
The study investigates the association between polymorphisms in the bovine prion protein gene (PRNP) and susceptibility to bovine spongiform encephalopathy (BSE).
Conclusion
The study found a significant genetic component associated with BSE susceptibility in cattle, particularly linked to the 12-bp deletion allele in the PRNP gene.
Supporting Evidence
- Two indel polymorphisms in the PRNP gene were found to be significantly associated with BSE incidence.
- Heterozygous and homozygous carriers of the 12-bp deletion allele have higher risks of BSE.
- Population attributable risks for the 12-bp deletion allele range from 35% to 53%.
Takeaway
Some cows are more likely to get sick from BSE because of their genes, but what they eat is even more important.
Methodology
The study analyzed two indel polymorphisms in the PRNP gene in BSE-affected and control cattle from four populations.
Limitations
The study cannot confirm a causal relationship between the identified polymorphisms and BSE susceptibility.
Participant Demographics
Cattle from four populations: UK Holstein, German Holstein, German Brown, and German Fleckvieh.
Statistical Information
P-Value
2.01 × 10-3 and 8.66 × 10-5
Confidence Interval
0.96 – 1.0
Statistical Significance
p<0.05
Digital Object Identifier (DOI)
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