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Controlling pain by influencing neurogenic pathways
Wiebke Puehler1, Christoph Stein
1Department of Anesthesiology and Critical Care Medicine, Charité-Universitätsmedizin Berlin, Campus Benjamin Franklin, Hindenburgdamm 30, 12200 Berlin, Germany. wiebke.puehler@charite.de
Rheumatic Diseases Clinics of North America
|January 11, 2005
Summary
Peripheral opioid receptors play a key role in pain control. Inhibiting primary afferent neurons via these receptors offers novel therapeutic strategies for inflammatory pain conditions like rheumatoid arthritis.
Area of Science:
- Neuroscience
- Immunology
- Pharmacology
Background:
- Neurogenic inflammation and pain are modulated by primary afferent neurons.
- The opioid system is a primary mechanism for inhibiting neuronal function.
- Inflammatory conditions enhance opioid receptor transport to peripheral nerve endings.
Purpose of the Study:
- To investigate the role of peripheral opioid receptors in pain control.
- To explore novel pharmaceutical concepts for inflammatory pain treatment.
Main Methods:
- Review of mechanisms involving opioid system and primary afferent neurons.
- Focus on axonal transport of opioid receptors in inflammation.
- Analysis of endogenous opioid peptide secretion and function.
Main Results:
- Augmented anterograde axonal transport of opioid receptors occurs under inflammation.
- Increased peripheral opioid receptors enhance analgesic effects of exogenous and endogenous opioids.
- Endogenous opioid peptides from immunocytes may activate peripheral opioid receptors to reduce pain.
Conclusions:
- Peripheral opioid receptors are crucial targets for managing inflammatory pain.
- Novel therapeutic strategies can leverage peripheral opioid receptor modulation for conditions like rheumatoid arthritis.