Genetics

This blog post examines a large multicohort study evaluating whether a multiple sclerosis genetic risk score can improve prediction of future multiple sclerosis in patients presenting with undifferentiated optic neuritis. By integrating polygenic susceptibility with age and sex, the researchers identified clinically distinct risk groups and validated the model in UK Biobank, Geisinger, and FinnGen populations. The findings highlight the potential of genomic risk stratification to support earlier neurological assessment, guide follow-up intensity, and improve treatment decisions, while also emphasizing the need for prospective validation and greater ancestral diversity before routine clinical implementation.