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Related Experiment Videos

Matrix metalloproteinase-9 expression in pterygium.

Silvana Artioli Schellini1, Erika Hoyama, Deilson Elgui Oliveira

  • 1Department of Ophthalmology, Faculdade de Botucatu, Universidade Estadual Paulista, Botucatu, SP, Brazil. sartioli@fmb.unesp.br

Arquivos Brasileiros De Oftalmologia
|May 16, 2006
PubMed
Summary

Matrix metalloproteinase (MMP) expression was similar in normal eye tissue and pterygium lesions. This suggests MMP-9 is not involved in pterygium formation or recurrence.

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Area of Science:

  • Ophthalmology
  • Molecular Biology
  • Tissue Engineering

Background:

  • Pterygium is a common ocular surface growth.
  • The role of matrix metalloproteinases (MMPs) in pterygium pathogenesis is not fully understood.

Purpose of the Study:

  • To investigate the expression of matrix metalloproteinase (MMP)-9 in pterygium lesions.
  • To compare MMP-9 levels in normal Tenon's capsule versus primary or recurrent pterygia.

Main Methods:

  • Prospective randomized clinical trial.
  • Immunohistochemical analysis of Tenon's capsule.
  • Computerized image analysis system for MMP expression quantification.
  • Statistical analysis of collected data.

Main Results:

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  • No significant difference in matrix metalloproteinase expression was observed between normal Tenon's capsule and pterygium tissues.
  • MMP-9 levels were comparable in primary and recurrent pterygia.

Conclusions:

  • Matrix metalloproteinase (MMP)-9 does not appear to play a significant role in the development or recurrence of pterygium.
  • Further research may explore other molecular pathways involved in pterygium formation.