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L-serine supplementation lowers diabetes incidence and improves blood glucose homeostasis in NOD mice

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Sphingolipids are a diverse group of lipids with important roles in beta-cell biology regulating insulin folding and controlling apoptosis. Sphingolipid biosynthesis begins with the condensation of L-serine and palmitoyl-CoA. Here we tested the effect of L-serine supplementation on autoimmune diabetes development and blood glucose homeostasis in female NOD mice. We found that continuous supplementation of L-serine reduces diabetes incidence and insulitis score. In addition, L-serine treated mice had an improved glucose tolerance test, reduced HOMA-IR, and reduced blood glucose levels. L-serine led to a small reduction in body weight accompanied by reduced food and water intake. L-serine had no effect on pancreatic sphingolipids as measured by mass spectrometry. The data thus suggests that L-serine could be used as a therapeutic supplement in the treatment of Type 1 Diabetes and to improve blood glucose homeostasis.

Original languageEnglish
JournalPLoS One
Issue number3
Pages (from-to)e0194414
Publication statusPublished - 2018

    Research areas

  • Animals, Blood Glucose/metabolism, Diabetes Mellitus, Type 1/blood, Dietary Supplements, Female, Glucose Tolerance Test, Homeostasis/drug effects, Incidence, Insulin/blood, Mice, Inbred NOD, Serine/administration & dosage

ID: 56441185