Neuroplasticity in the transition from acute to chronic pain

Neurotherapeutics. 2024 Oct;21(6):e00464. doi: 10.1016/j.neurot.2024.e00464. Epub 2024 Oct 21.

Abstract

Acute pain is a transient sensation that typically serves as part of the body's defense mechanism. However, in certain patients, acute pain can evolve into chronic pain, which persists for months or even longer. Neuroplasticity refers to the capacity for variation and adaptive alterations in the morphology and functionality of neurons and synapses, and it plays a significant role in the transmission and modulation of pain. In this paper, we explore the molecular mechanisms and signaling pathways underlying neuroplasticity during the transition of pain. We also examine the effects of neurotransmitters, inflammatory mediators, and central sensitization on neuroplasticity, as well as the potential of neuroplasticity as a therapeutic strategy for preventing chronic pain. The aims of this article is to clarify the role of neuroplasticity in the transformation from acute pain to chronic pain, with the hope of providing a novel theoretical basis for unraveling the pathogenesis of chronic pain and offering more effective strategies and approaches for its diagnosis and treatment.

Keywords: Central sensitization; Inflammatory mediators; Neurotransmitter; Pain transition; Synaptic plasticity.

Publication types

  • Review

MeSH terms

  • Acute Pain* / physiopathology
  • Animals
  • Chronic Pain* / physiopathology
  • Chronic Pain* / therapy
  • Disease Progression
  • Humans
  • Neuronal Plasticity* / physiology