A team of researchers with members affiliated with several institutions in Canada has found an association between children with a genetic disposition to type 1 diabetes (T1D) and anticommensal antibodies in their serum prior to the onset of T1D. In their paper published in the journal Science Immunology, the group describes their study of antibodies and gut microbes in children and what they found.
T1D is brought on by an abnormal immune response—for an unknown reason, the immune system mistakes beta cells in the pancreas for foreign invaders and kills them, preventing the body from making insulin for the rest of that person’s life. Prior research has shown that people (usually children) who develop T1D have HLA gene variants that make them more susceptible to the disease. In this new effort, the researchers found that children with the same HLA variants also tend to react differently to bacteria in their gut biomes.
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