C Brown
Chronic kidney disease in aged cats: Clinical features, morphology, and proposed pathogeneses
Brown, C; Elliott, J; Schmiedt, C; Brown, S
Authors
J Elliott
C Schmiedt
S Brown
Abstract
Chronic kidney disease (CKD) is the most common metabolic disease of domesticated cats, with most affected cats being geriatric (>12 years of age). The prevalence of CKD in cats exceeds that observed in dogs, and the frequency of the diagnosis of CKD in cats has increased in recent decades. Typical histologic features include interstitial inflammation, tubular atrophy, and fibrosis with secondary glomerulosclerosis. In contrast to people and dogs, primary glomerulopathies with marked proteinuria are remarkably rare findings in cats. Although a variety of primary renal diseases have been implicated, the disease is idiopathic in most cats. Tubulointerstitial changes, including fibrosis, are present in the early stages of feline CKD and become more severe in advanced disease. A variety of factors—including aging, ischemia, comorbid conditions, phosphorus overload, and routine vaccinations—have been implicated as factors that could contribute to the initiation of this disease in affected cats. Factors that are related to progression of established CKD, which occurs in some but not all cats, include dietary phosphorus intake, magnitude of proteinuria, and anemia. Renal fibrosis, a common histologic feature of aged feline kidneys, interferes with the normal relationship between peritubular capillaries and renal tubules. Experimentally, renal ischemia results in morphologic changes similar to those observed in spontaneous CKD. Renal hypoxia, perhaps episodic, may play a role in the initiation and progression of this disease.
Citation
Brown, C., Elliott, J., Schmiedt, C., & Brown, S. (2016). Chronic kidney disease in aged cats: Clinical features, morphology, and proposed pathogeneses. Veterinary Pathology, 53(2), 309-326. https://doi.org/10.1177/0300985815622975
Journal Article Type | Article |
---|---|
Acceptance Date | Feb 1, 2016 |
Publication Date | Mar 1, 2016 |
Deposit Date | Nov 26, 2015 |
Publicly Available Date | Nov 26, 2015 |
Journal | VETERINARY PATHOLOGY |
Print ISSN | 0300-9858 |
Electronic ISSN | 1544-2217 |
Publisher | American College of Veterinary Pathologists |
Peer Reviewed | Peer Reviewed |
Volume | 53 |
Issue | 2 |
Pages | 309-326 |
DOI | https://doi.org/10.1177/0300985815622975 |
Public URL | https://rvc-repository.worktribe.com/output/1397453 |
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