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About this document
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- 12 pages
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- $12 one-time, yours to keep
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- Subject
- Animal Science, Neuroscience, Veterinary Medicine
This document discusses a study on North Ronaldsay sheep, focusing on brain copper elevation and neurological changes. It explores how copper accumulation affects the liver and brain, and suggests that these sheep could be a model for studying neurodegenerative diseases. It is useful for understanding the neurological impacts of copper in small ruminants.
What's inside
- Brain copper elevation in North Ronaldsay sheep
- Neurological changes and copper accumulation
- Liver and brain copper correlation
- Chronic active hepatitis in sheep
- Astrocytes and metallothionein immunoreactivity
- Blood brain barrier features in North Ronaldsay sheep
Who it is for: Students of veterinary medicine, animal science and related fields. (Postgraduate)
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Summary
The document is about brain copper levels and neurological changes in North Ronaldsay sheep. It provides insights into what these changes might tell us about copper in the brain.
Copper in brain and liver
Research in North Ronaldsay sheep shows elevated copper levels in brain and liver. The brain barrier of these sheep may have unusual features.
Maedi-visna in sheep
Maedi-Visna causes chronic inflammation in sheep lungs, joints, mammary gland, and nervous system. Histological changes are present in brain and spinal cord.
Small intestinal adenocarcinoma
Sheep in New Zealand have high rates of small intestinal adenocarcinoma. This is not due to frequent infections by herpesviruses, Helicobacter, or Mycobacterium avium subspecies paratuberculosis.
Diseases in goats
The document describes an outbreak of ocular disease in dairy goats, caused by Yersinia pseudotuberculosis. Other conditions are mentioned, like pasteurella infection and various diseases associated with genetic or environmental factors.
Key terms
- Copper elevation
- increased copper levels in the liver and brain of older sheep.
- Maedi-Visna
- a sheep disease involving chronic inflammation.
- Amyloidosis
- disease where amyloid deposits affect mainly the gastrointestinal tract.
- Mismatch repair
- a genetic mechanism that repairs errors in DNA replication.
- Pasteurella multocida
- a bacterium causing respiratory infections in goats.
- Hemorrhagic septicemia
- an acute, fatal infection of ruminants in tropical countries.
Questions this document helps with
- How does copper elevation affect the brain of North Ronaldsay sheep?
- What are the neurological signs of Maedi-Visna in sheep?
- What causes high rates of small intestinal adenocarcinoma in sheep?
Summary written with AI from the document's text.
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