Gene Expression Changes in Sheep with Scrapie
Author Information
Author(s): Filali Hicham, Martin-Burriel Inmaculada, Harders Frank, Varona Luis, Lyahyai Jaber, Zaragoza Pilar, Pumarola Martí, Badiola Juan J., Bossers Alex, Bolea Rosa
Primary Institution: Centro de Investigación en Encefalopatías y Enfermedades Transmisibles Emergentes, Facultad de Veterinaria, Universidad de Zaragoza, Zaragoza, Spain
Hypothesis
The study aims to identify disease-associated alterations in the gene expression profiles of the caudal medulla oblongata in sheep presenting the symptomatic phase of natural scrapie.
Conclusion
The study identified 148 genes with differential expression in scrapie-affected sheep, many of which are involved in immune response and other cellular functions.
Supporting Evidence
- Over 350 probe sets displayed greater than 2-fold changes in expression.
- 148 genes were identified with differential expression related to immune response and other cellular functions.
- Statistically significant differences were found between scrapie-infected and control sheep.
Takeaway
Researchers looked at the brains of sheep with a disease called scrapie to find out which genes were turned on or off, helping us understand how the disease works.
Methodology
The study used a custom 4×44K microarray to compare gene expression in the medulla oblongata of 7 scrapie-infected sheep and 6 control sheep.
Limitations
The study focused only on the medulla oblongata and did not explore other brain regions or earlier stages of the disease.
Participant Demographics
All sheep were Rasa Aragonesa females aged 3-5 years.
Statistical Information
P-Value
p<0.01
Statistical Significance
p<0.01
Digital Object Identifier (DOI)
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