Document Detail


The effect of subconjunctival bevacizumab on corneal neovascularization, inflammation and re-epithelization in a rabbit model.
MedLine Citation:
PMID:  21915498     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
PURPOSE: To evaluate the use of subconjunctival bevacizumab on corneal neovascularization in an experimental rabbit model for its effect on vessel extension, inflammation, and corneal epithelialization.
METHODS: In this prospective, randomized, blinded, experimental study, 20 rabbits were submitted to a chemical trauma with sodium hydroxide and subsequently divided into two groups. The experimental group received a subconjunctival injection of bevacizumab (0.15 m; 3.75 mg), and the control group received an injection of 0.15 ml saline solution. After 14 days, two blinded digital photograph analyses were conducted to evaluate the inflammation/diameter of the vessels according to pre-established criteria. A histopathological analysis of the cornea evaluated the state of the epithelium and the number of polymorphonuclear cells.
RESULTS: A concordance analysis using Kappa's statistic showed a satisfactory level of agreement between the two blinded digital photography analyses. The neovascular vessel length was greater in the control group (p<0.01) than in the study group. However, the histopathological examination revealed no statistically significant differences between the groups in terms of the state of the epithelium and the number of polymorphonuclear cells.
CONCLUSIONS: Subconjunctival bevacizumab inhibited neovascularization in the rabbit cornea. However, this drug was not effective at reducing inflammation. The drug did not induce persistent corneal epithelial defects.
Authors:
Glauco Reggiani Mello; Marcos Longo Pizzolatti; Daniel Wasilewski; Marcony R Santhiago; Vinícius Budel; Hamilton Moreira
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Clinics (São Paulo, Brazil)     Volume:  66     ISSN:  1980-5322     ISO Abbreviation:  Clinics (Sao Paulo)     Publication Date:  2011  
Date Detail:
Created Date:  2011-09-14     Completed Date:  2012-06-11     Revised Date:  2013-06-27    
Medline Journal Info:
Nlm Unique ID:  101244734     Medline TA:  Clinics (Sao Paulo)     Country:  Brazil    
Other Details:
Languages:  eng     Pagination:  1443-50     Citation Subset:  IM    
Affiliation:
Cole Eye Institute, Cleveland, OH, USA. glaucohrm@gmail.com
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MeSH Terms
Descriptor/Qualifier:
Angiogenesis Inhibitors / administration & dosage,  therapeutic use*
Animals
Antibodies, Monoclonal, Humanized / administration & dosage,  therapeutic use*
Burns, Chemical / complications
Caustics
Corneal Neovascularization / drug therapy*,  etiology,  pathology
Disease Models, Animal
Endothelium, Corneal / drug effects*,  growth & development
Eye Burns / complications
Inflammation / drug therapy*
Injections, Intraocular
Keratitis / drug therapy*,  pathology
Male
Prospective Studies
Rabbits
Random Allocation
Severity of Illness Index
Sodium Hydroxide
Chemical
Reg. No./Substance:
0/Angiogenesis Inhibitors; 0/Antibodies, Monoclonal, Humanized; 0/Caustics; 1310-73-2/Sodium Hydroxide; 2S9ZZM9Q9V/bevacizumab
Comments/Corrections

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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