Hidden Genetic Cause of Diabetes in Babies Uncovered
Scientists have found a hidden cause of diabetes in babies. The culprit lies in non-coding genes. Most genetic research focuses on protein coding genes. However, this study looked elsewhere. Researchers at the University of Exeter led the work. They studied 19 children with neonatal diabetes.
Non Coding Genes Matter
Non-coding genes produce functional RNA molecules. These control how other genes behave. Mutations in two specific genes, RNU4ATAC and RNU6ATAC, caused the disease. All 19 children had an autoimmune form of diabetes. Their immune systems attacked insulin-producing cells. This process also happens in type 1 diabetes.
Disrupted Immune Pathways
The team used genome sequencing and blood analysis. They discovered that the mutations disrupted about 800 other genes. Many of these genes control immune system function. Therefore, the damage spread widely. “Non-coding genes have real potential to cause disease,” says Associate Professor Elisa De Franco.
A Window into Type 1 Diabetes
Neonatal diabetes is rare. But the finding has broader implications. One of the 800 disrupted genes may play a central role in common type 1 diabetes. As a result, researchers have new drug targets. “This gives us a window into how autoimmune diabetes develops,” says Dr. Matthew Johnson.
Hope for Undiagnosed Families
Half of all rare disease patients currently lack a diagnosis. Exploring non-coding DNA could provide answers. For families with affected children, this discovery brings hope. It also paves the way for better treatments.
