Loading…
Effects of carprofen administered by different routes to control experimental uveitis in dogs
Efficacy of carprofen, administered by different routes, was studied in experimental uveitis in dogs. Anterior chamber paracenteses was accomplished at two different moments (M0 and M1), with a five hour interval between them. At M0 and M1, 0.2mL of aqueous humor was collected and quantitation of to...
Saved in:
Published in: | Arquivo brasileiro de medicina veterinária e zootecnia 2010-04, Vol.62 (2), p.309-317 |
---|---|
Main Authors: | , , , , , , |
Format: | Article |
Language: | English |
Subjects: | |
Citations: | Items that this one cites Items that cite this one |
Online Access: | Get full text |
Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
Summary: | Efficacy of carprofen, administered by different routes, was studied in experimental uveitis in dogs. Anterior chamber paracenteses was accomplished at two different moments (M0 and M1), with a five hour interval between them. At M0 and M1, 0.2mL of aqueous humor was collected and quantitation of total protein and prostaglandin E2 (PGE2) were determined. Four groups were formed (n=8), which received carprofen at the end of M0, by the following routes: subcutaneous (GIm), subconjunctival (GII), and topical (GIII). A fourth group that received no treatment was instituted (Control). Conjunctival histopathology of the GII animals was performed. In all groups, values of protein and PGE2 significantly enhanced at M1; however, they did not significantly change among groups at M1. Inflammatory exudate of acute character and mild hemorrhage were seen at histopathology after carprofen administration. Carprofen was unable to inhibit PGE2 synthesis and the protein influx to the anterior chamber by any of the tested routes. However, the reduction of 44% in protein levels (topical) suggests that the agent can be used by this route as an adjuvant to control uveitis in dogs.
Estudaram-se os efeitos do carprofeno, aplicado por diferentes vias, em uveítes experimentais em cães. Realizou-se paracentese de câmara anterior em dois momentos (M0 e M1), com intervalo de cinco horas entre si. Em M0 e M1, colheram-se 0,2mL de humor aquoso e determinaram-se as concentrações de proteína total e de prostaglandina E2 (PGE2). Constituíram-se quatro grupos (n = 8), que receberam carprofeno ao final de M0 pelas vias subcutânea (GI), subconjuntival (GII) e tópica (GIII). Um quarto grupo não recebeu tratamento (controle). Procedeu-se à avaliação histopatológica nos indivíduos do GII. Em todos os grupos, encontrou-se aumento significativo dos níveis proteicos e de PGE2 em M1. Não se observou diferença significativa, em M1, entre os grupos para nenhum dos parâmetros estudados. Exsudado inflamatório de caráter agudo e hemorragia discreta foram vistos à histopatologia após a aplicação do fármaco. O carprofeno foi ineficaz em inibir a síntese de PGE2 e o influxo de proteínas para a câmara anterior, por qualquer uma das vias testadas. Contudo, a redução de 44% nos níveis de proteínas (via tópica), sugere que por esta via ele pode ser utilizado como adjuvante no controle da uveíte em cães. |
---|---|
ISSN: | 0102-0935 1678-4162 1678-4162 0102-0935 |
DOI: | 10.1590/S0102-09352010000200010 |