Glucagon in the gut – brain axis

Abstract

The intricate relationship between the gut and the brain has long captured the imagination of scientists, philosophers, and clinicians alike. Over the past few decades, research has unveiled a complex and bidirectional communication network that connects these seemingly distinct organs, giving rise to the concept of the gut–brain axis. This axis represents a dynamic and multifaceted system through which the gut and the brain exchange signals, impacting not only digestive processes but also a wide array of physiological and neurological functions. From influencing appetite and mood to playing a role in metabolic regulation, the gut–brain axis has emerged as a crucial nexus in understanding human health and well-being. This chapter delves into the intricate mechanisms that underlie the gut–brain axis, exploring its components and pathways with a special focus on the role played by glucagon. By unraveling the mysteries of this axis, we gain valuable insights into how our body’s diverse systems collaborate to maintain a delicate balance and how disturbances within this axis can contribute to a range of health conditions.