BSE Infectivity in the Small Intestine of Cattle
Author Information
Author(s): Christine Hoffmann, Martin Eiden, Martin Kaatz, Markus Keller, Ute Ziegler, Ron Rogers, Bob Hills, Anne Balkema-Buschmann, Lucien van Keulen, Jorg G Jacobs, Martin H Groschup
Primary Institution: Friedrich-Loeffler-Institut, Institute of Novel and Emerging Infectious Diseases
Hypothesis
When and where can BSE infectivity and pathological prion protein be found in the small intestine of cattle aged 4 to 6 months?
Conclusion
The study found BSE infectivity in the jejunum, ileum, and ileocaecal junction of pre-clinical cattle, with significant time-dependent variations.
Supporting Evidence
- 40 out of 46 BSE-infected cattle showed detectable amounts of PrPSc.
- BSE infectivity was found in the jejunum, ileum, and ileocaecal junction.
- Clear time-dependent variations in PrPSc levels were observed.
- Younger cattle had a more widespread distribution of PrPSc than older animals.
- The study provides new insights into the early gut-associated pathogenesis of BSE.
Takeaway
This study shows that sick cows can have bad germs in their intestines, which can spread to other animals and even people.
Methodology
The study examined tissue samples from the small intestines of BSE-infected cattle using immunohistochemistry, rapid tests, and mouse bioassays.
Limitations
The study focused on a limited number of samples from specific age groups and may not represent all cattle.
Participant Demographics
Cattle aged 4 to 6 months, including both infected and control groups.
Digital Object Identifier (DOI)
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