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(Referência obtida automaticamente do Web of Science, por meio da informação sobre o financiamento pela FAPESP e o número do processo correspondente, incluída na publicação pelos autores.)

Effects of intracameral ascorbic acid on the corneal endothelium of dogs undergoing phacoemulsification

Texto completo
Autor(es):
Padua, Ivan R. M. [1] ; Valdetaro, Gisele P. [1] ; Lima, Tiago B. [1] ; Kobashigawa, Karina K. [1] ; Silva, Paloma E. S. [2] ; Aldrovani, Marcela [1] ; Padua, Pedro P. M. [3] ; Laus, Jose L. [1]
Número total de Autores: 8
Afiliação do(s) autor(es):
[1] UNESP, Dept Small Anim Med & Surg, Fac Agr & Vet Sci, Ophthalmol Unit, FCAV, Jaboticabal, SP - Brazil
[2] UNESP, Anesthesiol Unit, Dept Small Anim Med & Anim Reprod, Fac Agr & Vet Sci, FCAV, Jaboticabal, SP - Brazil
[3] Clin Protectora Anim, Dept Small Anim Med, Bogota - Colombia
Número total de Afiliações: 3
Tipo de documento: Artigo Científico
Fonte: VETERINARY OPHTHALMOLOGY; v. 21, n. 2, p. 151-159, MAR 2018.
Citações Web of Science: 1
Resumo

ObjectiveCataracts are the most common ocular disorder in dogs. Phacoemulsification is the preferred treatment method among ophthalmologists, but the cellularity of the endothelium must be considered for its success, as endothelial lesions may produce permanent corneal decompensation. The objective of this study was to evaluate the effects of intracameral ascorbic acid, a known antioxidant, on the corneal endothelium of dogs undergoing phacoemulsification. Animal studiedIn all, 40 eyes from 20 dogs, males and females from 7 to 12 years of age, were assessed for mature cataracts. ProceduresTwo groups were formed (n = 20): Group 1 (G1) received a balanced salt solution (BSS), whereas Group 2 (G2) received sterile ascorbic acid diluted in a BSS, at a final concentration of 0.001 m ascorbic acid. The corneal endothelium was assessed via non-contact specular microscopy at multiple time points before and after phacoemulsification. Cell density (cells/mm(2)) and area (mm(2)), corneal thickness (mm), hexagonality, and the coefficient of variation of cell size were all assessed. P values equal to or less than 0.05 were considered significant. ResultsWith respect to the density of endothelial cells, both groups showed losses, but they were less severe in G2. There were no differences in corneal thickness. Hexagonality decreased significantly in the postoperative period in G1. Also in G1, the coefficient of variation of cell size increased significantly. ConclusionAccording to the results obtained, ascorbic acid minimizes cellular losses in the corneal endothelium. (AU)

Processo FAPESP: 11/20041-8 - Efeitos do ácido ascórbico sobre o endotélio corneal e sobre o fator de necrose tumoral alfa (TNF-±) em cães submetidos à facoemulsificação
Beneficiário:Ivan Ricardo Martinez Padua
Linha de fomento: Bolsas no Brasil - Doutorado