Gene-linked cholesterol tied to macular degeneration risk
A genetic analysis linked a protein-related cholesterol measure to higher disease odds, with an odds ratio of 1.51.
Edited by Boris Djordjevic · AgingResearch.News
In people from discovery and replication cohorts of large genetic studies, researchers analyzed genetic links to age-related macular degeneration, an eye disease. They combined several methods and prioritized seven disease-associated candidate genes. These included CETP, a gene for a protein that helps transfer fats between particles in the blood.
A Mendelian randomization analysis, which uses inherited genetic differences to examine associations, linked genetically predicted high-density lipoprotein cholesterol related to CETP to higher disease odds. This cholesterol measure remained independently associated after accounting for other lipid traits and ranked highest among the traits assessed. Exploratory analyses also suggested an association with disease progression. The researchers identified CETP as a genetically supported candidate gene, rather than a confirmed biological mechanism.
Why it matters
The findings may help focus research on how fat handling relates to susceptibility to an age-related eye disease.
Caveats
These genetic analyses did not test whether changing cholesterol levels would alter the disease. The progression findings were exploratory, and the authors said the proposed biological mechanisms required further validation.
The paper
Central South University; Aier Eye Hospital of Wuhan University
Investigative Ophthalmology & Visual Science, Oct 1, 2026, Open access
