Pancreas-Brain Crosstalk

Front Neuroanat. 2021 Jul 20:15:691777. doi: 10.3389/fnana.2021.691777. eCollection 2021.

Abstract

The neural regulation of glucose homeostasis in normal and challenged conditions involves the modulation of pancreatic islet-cell function. Compromising the pancreas innervation causes islet autoimmunity in type 1 diabetes and islet cell dysfunction in type 2 diabetes. However, despite the richly innervated nature of the pancreas, islet innervation remains ill-defined. Here, we review the neuroanatomical and humoral basis of the cross-talk between the endocrine pancreas and autonomic and sensory neurons. Identifying the neurocircuitry and neurochemistry of the neuro-insular network would provide clues to neuromodulation-based approaches for the prevention and treatment of diabetes and obesity.

Keywords: circumventricular organs; enteropancreatic; intrapancreatic ganglia; pancreas; parasympathetic nervous system; sympathetic nervous system.