Document Detail


Sclerochorioretinal abnormalities in hypercholesterolemic rabbits treated with rosiglitazone.
MedLine Citation:
PMID:  20795574     Owner:  NLM     Status:  In-Process    
Abstract/OtherAbstract:
BACKGROUND AND OBJECTIVE: To evaluate early retinal, choroidal, and scleral abnormalities induced by a hypercholesterolemic diet and the prevention of these abnormalities after oral administration of rosiglitazone in rabbits.
MATERIALS AND METHODS: Fifty-four New Zealand rabbits were divided into four study groups: control group, normal diet; group 1, hypercholesterolemic diet; group 2, hypercholesterolemic diet associated with daily administration of 3 mg of rosiglitazone from day 14 after beginning the diet; and group 3, hypercholesterolemic diet associated with daily administration of 3 mg of rosiglitazone since the beginning of the experiment. Sclera and choroid underwent histologic and histomorphometric analyses. Retina underwent immunohistochemical analysis with anti-calretinin and anti-glial fibrillary acidic protein (GFAP) antibodies.
RESULTS: No abnormalities were observed in the control group. Group 1 had significant increases in scleral and choroidal thicknesses compared with the control group (P < .01) and group 3 (P < .05). Group 1 presented significant increases in immunoreactivity (P < .001) to the anti-calretinin antibody compared with the other groups. Groups 2 and 3 had significant (P < .002) increases in calretinin immunoreactivity compared with the control group. GFAP was negative in all groups.
CONCLUSION: The hypercholesterolemic diet induced early retinal, choroidal, and scleral abnormalities. Rosiglitazone preserved the structural anatomy.
Authors:
Rogil José de Almeida Torres; Cristina Muccioli; Maurício Maia; Lucia Noronha; Andréa Luchini; Alexandre Alessi; Márcia Olandoski; Michel Eid Farah; Dalton Bertolin Précoma
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Publication Detail:
Type:  Journal Article     Date:  2010-07-29
Journal Detail:
Title:  Ophthalmic surgery, lasers & imaging : the official journal of the International Society for Imaging in the Eye     Volume:  41     ISSN:  1938-2375     ISO Abbreviation:  Ophthalmic Surg Lasers Imaging     Publication Date:    2010 Sep-Oct
Date Detail:
Created Date:  2010-10-25     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  101155780     Medline TA:  Ophthalmic Surg Lasers Imaging     Country:  United States    
Other Details:
Languages:  eng     Pagination:  562-71     Citation Subset:  IM    
Copyright Information:
Copyright 2010, SLACK Incorporated.
Affiliation:
Ophthalmology Department, Universidade Federal de São Paulo-SP Hospital Angelina Caron, Curitiba, PR, Brazil. rjat@terra.com.br
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