Produção lacrimal e densidade de células caliciformes conjuntivais em cães da raça SHIH-TZU
Carregando...
Data
2008-02-28
Autores
Título da Revista
ISSN da Revista
Título de Volume
Editor
Universidade Federal de Goiás
Resumo
Considering the relevance of tear production and tear quality to the
conservation of the corneal health, the present study aimed to evaluate tear
production and conjunctival goblet cells density in Shih-tzu dogs. Thirty five grownup
Shih-tzu dogs, including 33 females and 2 males, were subjected to Schirmer
tear test 1 (STT-1) and Schirmer tear test 2 (STT-2). Among these dogs, fourteen
females and one male were underwent to conjunctival biopsy for histologic
evaluation of goblet cell density (GCD) and goblet cell index (GCI). The STT-1
mean values found were 19,66 ± 7,3 mm/min for left eye (LE) and 21,97 ± 5,7
mm/min for right eye (RE). The STT-2 mean values were 10,71 ± 6,1 mm/min and
9,14 ± 4,78 mm/min for LE and RE, respectively. The GCD mean values found
were 13,64 ± 3,44 goblet cells/50 epithelial cells for LE and 13, 64 ± 4,07 goblet
cells/50 epithelial cells for RE. The GCIs correspondent were 0,27 ± 0,069 and
0,27 ± 0,081 for LE and RE, respectively. There was significant difference
between LE and RE STT-1 values. There was not significant difference between
eyes for STT-2, GCD and GCI values. STT-1 and STT-2 values did not influence
significantly GCI values. STT-1 and STT-2 values are within of the pattern
considered normal, but the GCD and GCI mean values are lower than those
values described in literature for healthy dogs of other breeds. The conjunctival
specimens histological evaluation was accepted as convenient, which
demonstrated squamous metaplasic areas in 83,3% of the specimens. Within 44%
of these, squamous metaplasia was predominantly associated with mononuclear
inflammatory infiltrate.
Descrição
Palavras-chave
braquicefálicos , lágrima , mucina , ocular , canino , brachycephalic , tear , mucin , ocular , canine
Citação
LIMA, Aline Maria Vasconcelos. Tear production and conjunctival goblet cell density in
Shih-tzu dogs. 2008. 54 f. Dissertação (Mestrado em Ciências Agrárias - Veterinaria) - Universidade Federal de Goiás, Goiânia, 2008.