Genetics

This article provides a comprehensive exploration of the rapidly evolving genetic landscape of Multiple Sclerosis (MS), a chronic neuroinflammatory disorder driven by a complex interplay of environmental factors and hereditary predisposition. By synthesizing a decade of large-scale genome-wide association studies (GWAS), the review highlights the identification of over 200 genetic loci that account for nearly half of the disease's heritability, with a particular focus on the dominant role of the HLA gene cluster. Beyond mere identification, the text delves into the burgeoning field of functional genomics, addressing the critical challenge of translating these "genomic addresses" into biological mechanisms. It emphasizes the shift from understanding disease susceptibility to investigating the genetic markers of disease progression, ultimately advocating for a multi-omic approach to bridge the gap between genetic risk and clinical manifestation for more personalized therapeutic interventions.