Related Experiment Videos
Nutritionally induced necrotizing glomerulonephritis and polyarteritis nodosa in pigs
Acta Pathologica Et Microbiologica Scandinavica. Section A, Pathology
|September 1, 1979
Summary
Feeding pigs a waste product from Alcalase NOVO enzyme production caused kidney disease (glomerulonephritis) and a condition resembling polyarteritis nodosa in all animals. This study highlights potential nutritional risks from industrial byproducts.
Area of Science:
- Veterinary Pathology
- Toxicology
- Nephrology
Background:
- Industrial waste products can contain unknown toxic components.
- Proteolytic enzymes like Alcalase NOVO are produced industrially.
- Dietary factors can influence animal health and disease development.
Purpose of the Study:
- To investigate the pathological effects of feeding pigs a waste product from Alcalase NOVO production.
- To identify specific lesions and disease mechanisms induced by the waste product.
- To determine if the waste product can cause glomerulonephritis and polyarteritis nodosa.
Main Methods:
- Histopathological examination of kidney tissues from 48 pigs.
- Electron microscopy to analyze glomerular ultrastructure.
- Immunofluorescence microscopy to detect immune deposits in glomeruli.
Main Results:
- All 48 pigs developed necrotizing glomerulonephritis and focal glomerular necrosis.
- Three pigs exhibited lesions consistent with polyarteritis nodosa.
- Electron microscopy revealed subendothelial and subepithelial electron-dense deposits.
- Immunofluorescence showed granular IgM deposition in glomeruli.
Conclusions:
- Nutritionally induced glomerulonephritis and polyarteritis nodosa are possible in pigs.
- Waste products from industrial enzyme production can pose significant health risks.
- This study is the first to report these specific induced conditions in pigs.