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The inheritance of corneal endothelial cell density
Adel Racz1,2, Georgina Zsofia Toth2, Adam Domonkos Tarnoki3,4
1a Department of Ophthalmology , Peterfy Sandor Hospital , Budapest , Hungary.
Ophthalmic Genetics
|February 6, 2016
Summary
Corneal endothelial cell density (ECD) is highly heritable, with genetics accounting for 82%. This finding highlights the need for genetic research into ECD determination and potential treatments for endothelial cell loss.
Area of Science:
- Ophthalmology
- Genetics
- Corneal Science
Background:
- Corneal diseases often have a genetic basis.
- The heritability of corneal endothelial cell density (ECD) has not been previously established.
Purpose of the Study:
- To determine the heritability of corneal endothelial cell density (ECD).
Main Methods:
- Investigated corneal ECD in 114 eyes from monozygotic and dizygotic twin pairs.
- Utilized specular microscopy (Konan Noncon Robo NSP-9900).
- Applied structural equation modeling (ACE model).
Main Results:
- Corneal ECD demonstrated high heritability (82.0%, 95% CI, 70.0-92.0%).
- Unique environmental factors contributed 18.0% (95% CI, 8.0-29.0%) to ECD.
- Shared environmental factors did not influence corneal ECD.
Conclusions:
- Corneal endothelial cell density is strongly heritable.
- This finding warrants further genetic studies to identify relevant genes and pathways.
- Potential future treatments for endothelial cell loss may arise from this research.
