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Pathophysiology of pain

S A Cross1

  • 1Department of Neurology, Mayo Clinic Rochester, Minnesota 55905.

Mayo Clinic Proceedings
|April 1, 1994
PubMed
Summary
This summary is machine-generated.

Understanding pain pathways in the central and peripheral nervous system is key. This review details nociceptive pathways and descending modulatory systems, crucial for effective pain management.

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Area of Science:

  • Neuroscience
  • Pain Research
  • Pharmacology

Background:

  • Pain perception involves complex pathways in both the central and peripheral nervous system.
  • Understanding these pathways is essential for developing effective pain treatments.

Purpose of the Study:

  • To review the neural pathways involved in pain transmission.
  • To discuss the mechanisms of action for pain-relieving drugs.

Main Methods:

  • Overview of peripheral and central pain pathways.
  • Detailed description of ascending and descending pain pathways.
  • Examination of drug actions on pain pathways.

Main Results:

  • The nociceptive pathway is a dual system, separating discriminative ('first pain') and affective ('second pain') components.

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  • Descending pathways from the cortex, thalamus, and brainstem modulate spinal nociceptive transmission.
  • Close interactions exist between somatic and visceral pain pathways, influencing pain perception and autonomic responses.

    • Conclusions:

    • A comprehensive understanding of pain pathways and neurotransmitters is vital for improving pain prevention and treatment strategies.
    • Targeting specific components of pain pathways offers potential for novel therapeutic interventions.