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Histopathological lesions in lead intoxicated dogs
N Papaioannou1, I Vlemmas, N Balaskas
1Laboratory of Pathology, Faculty of Veterinary Medicine, Aristotle University of Thessaloniki, Greece.
Veterinary and Human Toxicology
|July 31, 1998
Summary
This study investigated lead poisoning in dogs, revealing ultra-structural damage in organs like the liver and kidneys. Lead deposits were found in various tissues, highlighting toxic effects.
Area of Science:
- Veterinary Pathology
- Toxicology
- Cell Biology
Background:
- Lead poisoning is a significant health concern in animals.
- Understanding the ultra-structural effects of lead is crucial for diagnosis and treatment.
- Lead acetate is a common source of lead exposure.
Purpose of the Study:
- To investigate the ultra-structural lesions caused by lead poisoning in dogs.
- To determine the deposition patterns of lead in various organs of dogs.
- To characterize the histopathological changes associated with lead exposure.
Main Methods:
- Five crossbreed dogs were injected with lead acetate over 10 doses.
- Control dogs were used for comparison.
- Histopathological examination of liver, kidney, peritoneum, cerebellum, and retina was performed.
Main Results:
- Degeneration of epithelial cells in urinary tubules, endothelial cells in renal capillaries, and hepatocytes was observed.
- Characteristic lead inclusion bodies were found in peritoneal mesothelial and giant cells.
- Lead deposits, including needle-like inclusions, were identified in kidney interstitial connective tissue and collagen fibers.
Conclusions:
- Lead poisoning induces significant ultra-structural damage in multiple organs of dogs.
- Lead deposition occurs in various tissues, with characteristic inclusion bodies forming.
- Histopathological findings provide insights into the pathogenesis of lead toxicity.