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Neurogenic inflammation and pancreatitis
Rodger A Liddle1, Jaimie D Nathan
1Department of Medicine, Duke University, and Durham VA Medical Centers, Durham, NC 27710, USA. liddl001@mc.duke.edu
Summary
Sensory nerves in the pancreas release tachykinins, causing neurogenic inflammation. This process, involving factors like trypsin, may play a key role in acute pancreatitis development.
Area of Science:
- Neuroscience
- Gastroenterology
- Inflammation Research
Background:
- Primary sensory neurons mediate local responses like vasodilation and pain via tachykinin release (substance P, CGRP).
- Neurogenic inflammation, pathological sensory neuron activation, is implicated in various organ systems, including the pancreas.
- Factors such as hydrogen ions, heat, bradykinin, and proteases (e.g., trypsin) can stimulate sensory neurons.
Purpose of the Study:
- To review the cellular and molecular mechanisms of sensory nerve activation in the pancreas.
- To explore the potential role of neurogenic inflammation in the pathogenesis of pancreatitis.
Main Methods:
- Literature review focusing on sensory neuron activation and neurogenic inflammation in pancreatitis.
- Analysis of cellular and molecular pathways involved in pancreatic sensory nerve stimulation.
Main Results:
- Sensory neurons release substance P and CGRP, contributing to local inflammation.
- Multiple stimuli present in acute pancreatitis can activate pancreatic sensory neurons.
- Neurogenic inflammation is a significant factor in the development of pancreatitis.
Conclusions:
- Sensory nerve activation and subsequent neurogenic inflammation are critical in pancreatic inflammation.
- Understanding these mechanisms offers potential therapeutic targets for pancreatitis.