A perspective on copper and liver disease in the dog

Department of Veterinary Pathobiology, College of Veterinary Medicine, University of Missouri, Columbia 65211, USA.

Copper is a ubiquitous trace metal necessary for normal function of a variety of cellular proteins. Intracellular copper metabolism is complex, and only a few of the proteins/genes involved are known. Copper deficiency does not appear to be a clinical problem in dogs. Excess copper accumulation in the liver as a cause of hepatitis and cirrhosis was first demonstrated among Bedlington terriers. Subsequently, copper accumulation in the liver has been shown to occur in several other breeds of dogs. Excess hepatic copper has been found in dogs with normal liver histology, dogs with hepatitis, and dogs with end stage cirrhosis. Evidence is accumulating that copper is a cause of liver disease in breeds of dogs other than Bedlington terriers. Moreover, as more data are accumulated, the copper storage disease appears to have characteristics that are very similar among all of the affected breeds.

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