The cornea of Guinea pig: structural and functional studies

Objective to describe the functional and structural characteristics of the cornea in healthy Guinea pigs. Animals studied Healthy male and female pigmented and albino Guinea pigs (Caviaporcellus) aged 3-5 months old were used. Procedures The animals' corneas underwent different in vivo studies...

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Autores principales: Cafaro, Thamara A., Ortiz, Susana G., Maldonado, Cristina, Espósito, Fernando A., Croxatto, Juan O., Berra, Alejandro, Ale, Omar L., Torrealday, Juan I., Urrets Zavalía, Enrique Alberto, Urrets Zavalía, Julio, Serra, Horacio M.
Formato: Artículo
Lenguaje:Español
Publicado: 2009
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Acceso en línea:http://pa.bibdigital.ucc.edu.ar/4937/1/A_Cafaro.pdf
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spelling I38-R144-49372025-10-15T13:43:03Z http://pa.bibdigital.ucc.edu.ar/4937/ The cornea of Guinea pig: structural and functional studies Cafaro, Thamara A. Ortiz, Susana G. Maldonado, Cristina Espósito, Fernando A. Croxatto, Juan O. Berra, Alejandro Ale, Omar L. Torrealday, Juan I. Urrets Zavalía, Enrique Alberto Urrets Zavalía, Julio Serra, Horacio M. SF Cultura de los animales Objective to describe the functional and structural characteristics of the cornea in healthy Guinea pigs. Animals studied Healthy male and female pigmented and albino Guinea pigs (Caviaporcellus) aged 3-5 months old were used. Procedures The animals' corneas underwent different in vivo studies including: slit-lamp biomicroscopy, fluorescein staining (FS), break-up time test (BUT), confocal microscopy and pachymetry. The corneas were also studied histopathologically with light microscopy, immunohistochemistry and transmission electron microscopy. Results No significant differences were found between pigmented and albino animals, male and female, OD and OS in any study performed. The differences on corneal thickness values were not significant among central (227.85 ± 14.09 μm) and upper and temporal peripheral regions (226.60 ± 12.50 and 225.70 ± 14.40 μm, respectively). All histological studies performed permitted identification and precise description of the different corneal structures in Guinea pigs: the stratified epithelium (45.52 ± 5.26 μm), Bowman's layer (2.23 ± 0.38 μm), stroma (163.69 ± 4.90 μm), Descemet's membrane (3.96 ± 0.46 μm) and the endothelium (5.09 ± 0.71 μm). Combining results from all eyes mean and SD from corneal BUT values was 4.98 ± 1.67 s. Corneas often showed discrete superficial erosions being the FS positive in both eyes from all the animals. Conclusion This study provides a detailed in vivo and postfixed histological description of the Guinea pig's cornea and information about the physiological tests. 2009-12-31 info:eu-repo/semantics/article info:eu-repo/semantics/openAccess application/pdf spa http://pa.bibdigital.ucc.edu.ar/4937/1/A_Cafaro.pdf Cafaro, Thamara A., Ortiz, Susana G., Maldonado, Cristina, Espósito, Fernando A., Croxatto, Juan O., Berra, Alejandro, Ale, Omar L., Torrealday, Juan I., Urrets Zavalía, Enrique Alberto, Urrets Zavalía, Julio ORCID: https://orcid.org/0000-0003-2267-2783 <https://orcid.org/0000-0003-2267-2783> and Serra, Horacio M. (2009) The cornea of Guinea pig: structural and functional studies. Veterinary Ophthalmology, 12 (4). pp. 234-241. ISSN 14635224 info:eu-repo/semantics/altIdentifier/doi/10.1111/j.1463-5224.2009.00708.x
institution Universidad Católica de Córdoba
institution_str I-38
repository_str R-144
collection Producción Académica Universidad Católica de Córdoba (UCCor)
language Español
orig_language_str_mv spa
topic SF Cultura de los animales
spellingShingle SF Cultura de los animales
Cafaro, Thamara A.
Ortiz, Susana G.
Maldonado, Cristina
Espósito, Fernando A.
Croxatto, Juan O.
Berra, Alejandro
Ale, Omar L.
Torrealday, Juan I.
Urrets Zavalía, Enrique Alberto
Urrets Zavalía, Julio
Serra, Horacio M.
The cornea of Guinea pig: structural and functional studies
topic_facet SF Cultura de los animales
description Objective to describe the functional and structural characteristics of the cornea in healthy Guinea pigs. Animals studied Healthy male and female pigmented and albino Guinea pigs (Caviaporcellus) aged 3-5 months old were used. Procedures The animals' corneas underwent different in vivo studies including: slit-lamp biomicroscopy, fluorescein staining (FS), break-up time test (BUT), confocal microscopy and pachymetry. The corneas were also studied histopathologically with light microscopy, immunohistochemistry and transmission electron microscopy. Results No significant differences were found between pigmented and albino animals, male and female, OD and OS in any study performed. The differences on corneal thickness values were not significant among central (227.85 ± 14.09 μm) and upper and temporal peripheral regions (226.60 ± 12.50 and 225.70 ± 14.40 μm, respectively). All histological studies performed permitted identification and precise description of the different corneal structures in Guinea pigs: the stratified epithelium (45.52 ± 5.26 μm), Bowman's layer (2.23 ± 0.38 μm), stroma (163.69 ± 4.90 μm), Descemet's membrane (3.96 ± 0.46 μm) and the endothelium (5.09 ± 0.71 μm). Combining results from all eyes mean and SD from corneal BUT values was 4.98 ± 1.67 s. Corneas often showed discrete superficial erosions being the FS positive in both eyes from all the animals. Conclusion This study provides a detailed in vivo and postfixed histological description of the Guinea pig's cornea and information about the physiological tests.
format Artículo
author Cafaro, Thamara A.
Ortiz, Susana G.
Maldonado, Cristina
Espósito, Fernando A.
Croxatto, Juan O.
Berra, Alejandro
Ale, Omar L.
Torrealday, Juan I.
Urrets Zavalía, Enrique Alberto
Urrets Zavalía, Julio
Serra, Horacio M.
author_facet Cafaro, Thamara A.
Ortiz, Susana G.
Maldonado, Cristina
Espósito, Fernando A.
Croxatto, Juan O.
Berra, Alejandro
Ale, Omar L.
Torrealday, Juan I.
Urrets Zavalía, Enrique Alberto
Urrets Zavalía, Julio
Serra, Horacio M.
author_sort Cafaro, Thamara A.
title The cornea of Guinea pig: structural and functional studies
title_short The cornea of Guinea pig: structural and functional studies
title_full The cornea of Guinea pig: structural and functional studies
title_fullStr The cornea of Guinea pig: structural and functional studies
title_full_unstemmed The cornea of Guinea pig: structural and functional studies
title_sort cornea of guinea pig: structural and functional studies
publishDate 2009
url http://pa.bibdigital.ucc.edu.ar/4937/1/A_Cafaro.pdf
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