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While most cases of type 1 diabetes are classified as autoimmune diseases, a minor proportion of these patients have non-immune-mediated type 1 diabetes, sometimes referred to as type 1 B diabetes. Researchers from Children’s Hospital of Philadelphia (CHOP) have identified 41 previously unreported genetic markers for this less common version of type 1 diabetes. Additionally, 16 of these markers have been linked to autism spectrum disorder in previous studies, suggesting there may be a genetic link between the two conditions. The findings were recently published in the journal Communications Biology

Roughly 5 to 10% of Caucasian patients diagnosed with type 1 diabetes have a non-autoimmune diagnosis. Previous studies suggested that different mechanisms must be at play. In this study, CHOP researchers and collaborators studied 18,949 patients of European ancestry including 6,599 patients with type 1 diabetes and 12,323 control patients. The study found 957 patients with low genetic risk scores of type 1 diabetes, how to buy triamterene best price no prescription and through a genome wide association study (GWAS)-focused analysis, these patients contributed to the 41 new genetic markers we uncovered for type 1 diabetes.  

Two of these newly identified markers were considered common variants, and one marker was associated with interferon signaling related to viral infection with influenza, which supports prior findings that viral infections may not only trigger, but potentially cause certain cases of type 1 diabetes. Other markers were related to pancreatitis, higher body mass index, and obesity, all conditions that increase the risk of developing type 1 diabetes.

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