Porcine sclera as a model of human sclera for in vitro transport experiments: histology, SEM, and comparative permeability
2009

Using Pig Eyes to Study Drug Delivery in Human Eyes

publication Evidence: moderate

Author Information

Author(s): Nicoli S., Ferrari G., Quarta M., Macaluso C., Govoni P., Dallatana D., Santi P.

Primary Institution: University of Parma, Italy

Hypothesis

Can porcine sclera serve as a reliable model for human sclera in drug delivery studies?

Conclusion

Porcine sclera is a good model for human sclera in drug delivery experiments, especially when considering tissue thickness.

Supporting Evidence

  • Porcine sclera is approximately twofold thicker than human sclera.
  • Both human and porcine scleras have similar histology and collagen organization.
  • Human sclera is two to threefold more permeable than porcine sclera for the tested molecules.

Takeaway

Scientists found that pig eyes can help us understand how drugs move through human eyes, which is important for treating eye diseases.

Methodology

The study compared the thickness, water content, and permeability of human and porcine scleras using various model molecules.

Limitations

The study primarily focused on in vitro conditions, which may not fully replicate in vivo scenarios.

Statistical Information

P-Value

<0.001

Statistical Significance

p<0.05

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