New fundamental knowledge of the “abdominal brain”
Researchers at Karolinska Institutet have succeeded in mapping the neuron types comprising the enteric nervous system in the intestine of mice. The study, which is published today in the scientific journal Nature Neuroscience, also describes how the different neurons form during fetal development, a process that follows different principles to brain neurons.Our approximately seven-metre long gastrointestinal (GI) tract has its own functionally distinct neurons. Since this enteric nervous system (ENS) operates autonomously, it is sometimes referred to as the “second” or “abdominal” brain.