Peer-reviewed veterinary case report
How common is high copper in dog liver cells and what it means
By Moore, A Russell et al.·Published in Journal of the American Animal Hospital Association·2019·From the Department of Microbiology, United States·View original on PubMed →
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Original publication title: Clinicopathological Correlation and Prevalence of Increased Copper in Canine Hepatic Cytology.
- Species:
- dog
Plain-English summary
A group of 198 dogs had liver samples tested for copper levels to see how often high copper content was found and what it might mean for their health. The study found that only about 1 in 80 dogs had increased copper levels in their liver cells. Dogs with high liver enzyme levels were more likely to have copper issues. If a dog shows signs of liver problems, like elevated liver enzymes, it may be important for the vet to check copper levels in the liver.
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Abstract
Special staining and grading of canine liver cytology samples aids in detection of increased copper content. The prevalence of copper in routine diagnostic liver cytology samples, clinical findings associated with high cytologic copper (cCu) grade, and the correlation between cCu grade and histologic findings, including histologic copper (hCu) grade, are unknown. This data may be helpful in ascertaining when to determine a cCu grade and when interpreting cCu grade. Clinical data and available archived hepatic histologic and cytologic samples from 198 dogs were collected, evaluated, rhodanine stained, and graded for copper. Prevalence of increased cCu >5 in a randomly collected group of 163 individuals, and the correlation between cCu and clinical data (n = 198), hCu grade (n = 37), or findings on hematoxylin and eosin-stained hepatic sections (n = 32) were evaluated. The observed prevalence was 1.23%. Dogs with elevated alanine transaminase >180 IU/L or aspartate transaminase >90 IU/L and patients who subsequently had hepatic copper quantification were statistically more likely to have pathologic levels of copper detected by cytology. There was significant and modest correlation between cCu and hCu, interface hepatitis, portal inflammation, and fibrosis. Evidence of hepatocellular leakage may be indications for determination of cCu.
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Search related cases →Original publication on PubMed: https://pubmed.ncbi.nlm.nih.gov/30427716/