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Tipo:	Artigo de Periódico
Título:	Cystatin C assay validation using the immunoturbidimetric method to evaluate the renal function of healthy dogs and dogs with acute renal injury
Autor(es):	Patricia Donado Vaz de Melo Adriane Pimenta da Costa-Val Bicalho Fabiola de Oliveira Paes-Leme Eliana Matias de Souza Mariah Gois Ceregatti Marco Túlio Gomes Campos
Resumo:	Background and Aim: Acute kidney injury (AKI) is associated with a grave prognosis. A clinical assessment of kidney function can be performed based on the glomerular filtration rate (GFR). Cystatin C (CysC) can indicate the GFR or kidney function and its measurement is currently performed using immunological methods such as nephelometry, immunoturbidimetry, and enzyme-linked immunosorbent assays in human medicine. However, these techniques are not specific for use in veterinary medicine. This study aimed to validate an immunoturbidimetric assay for serum CysC (sCy) in dogs, determine the sCy reference intervals for healthy dogs, evaluate sCy stability in serum samples, and compare sCy with serum creatinine (sCr) in healthy dogs and dogs with AKI. Materials and Methods: Forty-three dogs were divided into a control group (n = 19) and an AKI group (n = 24). An immunoturbidimetric method including commercially available human CysC calibrated with canine CysC was used to evaluate canine serum samples. Results: An average recovery of 97% was observed for canine serum samples. The reference interval for CysC in healthy dogs was 0.57–1.29 mg/L. The sCy concentration in dogs with AKI was significantly higher (2.82 ± 1.46 mg/L) than in healthy dogs (0.93 ± 0.18 mg/L). Statistical analysis confirmed a strong correlation between sCy and sCr (r = 0.94; p < 0.05) in dogs with AKI. Conclusion: The immunoturbidimetric method of evaluating sCy yielded satisfactory results and can be used for canine samples when a species-specific calibrator is used. Furthermore, sCy is a reliable marker of renal dysfunction in dogs. It is best to store samples for sCy evaluation at temperatures between 4°C and 8°C.
Assunto:	Animais domésticos Rins
Idioma:	eng
País:	Brasil
Editor:	Universidade Federal de Minas Gerais
Sigla da Instituição:	UFMG
Departamento:	VET - DEPARTAMENTO DE CLÍNICA E CIRURGIA VETER - ESCOLA DE VETERINARIA
Tipo de Acesso:	Acesso Aberto
Identificador DOI:	www.doi.org/10.14202/vetworld.2022.1595-1600
URI:	http://hdl.handle.net/1843/61294
Data do documento:	30-Jun-2022
metadata.dc.url.externa:	http://www.veterinaryworld.org/Vol.15/June-2022/25.html
metadata.dc.relation.ispartof:	Veterinary World
Aparece nas coleções:	Artigo de Periódico

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