The function of islet macrophages is poorly understood. They promote glucose-stimulated insulin secretion (GSIS) in lean mice, however, the underlying mechanism has remained unclear. We show that activation of the free fatty acid receptor FFAR4 on islet macrophages leads to interleukin-6 (IL-6) r...
Background Prediabetes, a global health concern characterized by insulin resistance (IR) and closely linked to obesity, was investigated in this study to identify key gut microbiota characteristics. The development of insulin resistance is associated with gut microbiota. Therefore, identifying ke...