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Lenticular autofluorescence in normal tree shrews

M Kado1, S Ishiko, A Yoshida

  • 1Department of Ophthalmology, Asahikawa Medical College, Japan.

Ophthalmic Research
|January 1, 1996
PubMed
Summary

Tree shrews offer a reliable animal model for studying lens pathology. Their lenticular autofluorescence measurements are consistent and correlate strongly with age, making them valuable for research.

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Area of Science:

  • Ophthalmology
  • Animal Models
  • Biomedical Research

Background:

  • Lens autofluorescence is an indicator of aging and potential pathology.
  • Establishing reliable animal models is crucial for studying human eye diseases.
  • Tree shrews are small, easily bred, and considered primate models.

Purpose of the Study:

  • To evaluate the utility of tree shrews as an animal model for lens pathology.
  • To assess the reliability and variability of in vivo lenticular autofluorescence measurements in tree shrews.

Main Methods:

  • In vivo measurement of lenticular autofluorescence using a fluorophotometer with a small animal adapter.
  • Analysis of measurement variability, inter-eye ratios, and correlation with age in 25 normal tree shrews.

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Main Results:

  • Lenticular autofluorescence measurements showed low variability (8.7%).
  • A strong positive correlation was found between age and lenticular autofluorescence (r=0.988, p < 0.001).
  • An annual increase of 23.7 ngEq/ml in lenticular autofluorescence was calculated.

Conclusions:

  • In vivo lenticular autofluorescence measurement in tree shrews is a reliable method.
  • Tree shrews demonstrate minimal variation in lenticular autofluorescence, primarily driven by aging.
  • The tree shrew serves as a promising animal model for investigating human lens pathologies.