Outbreaks of Renal Failure Associated with Melamine and Cyanuric Acid in Dogs and Cats in 2004 and 2007

Journal of Veterinary Diagnostic Investigation - Tập 19 Số 5 - Trang 525-531 - 2007
Cathy A. Brown1, Kwangho Jeong2,3, Robert H. Poppenga4,2, Birgit Puschner4,2, Doris M. Miller1, Angela E. Ellis1, Kyung Il Kang5, Steffen Sum2, Alexis M. Cistola2, Scott A. Brown2
1Athens Veterinary Diagnostic Laboratory, College of Veterinary Medicine, University of Georgia, Athens, GA
2Department of Small Animal Medicine, College of Veterinary Medicine, University of Georgia, Athens, GA
3Kyungpook National University, Daegu, Korea
4California Animal Health and Food Safety Laboratory System, University of California, Davis, CA
5Department of Pathology, College of Veterinary Medicine, University of Georgia, Athens, GA

Tóm tắt

Sixteen animals affected in 2 outbreaks of pet food-associated renal failure (2 dogs in 2004; 10 cats and 4 dogs in 2007) were evaluated for histopathologic, toxicologic, and clinicopathologic changes. All 16 animals had clinical and laboratory evidence of uremia, including anorexia, vomiting, lethargy, polyuria, azotemia, and hyperphosphatemia. Where measured, serum hepatic enzyme concentrations were normal in animals from both outbreaks. All animals died or were euthanized because of severe uremia. Distal tubular lesions were present in all 16 animals, and unique polarizable crystals with striations were present in distal tubules or collecting ducts in all animals. The proximal tubules were largely unaffected. Crystals and histologic appearance were identical in both outbreaks. A chronic pattern of histologic change, characterized by interstitial fibrosis and inflammation, was observed in some affected animals. Melamine and cyanuric acid were present in renal tissue from both outbreaks. These results indicate that the pet food-associated renal failure outbreaks in 2004 and 2007 share identical clinical, histologic, and toxicologic findings, providing compelling evidence that they share the same causation.

Từ khóa


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Thông tin
Thông tin xuất bản

Journal of Veterinary Diagnostic Investigation

Tập 19 Số 5

525-531

Thông tin tác giả