[Acupuncture in pain therapy: current concepts]

Area of Science:

• Integrative Medicine
• Neuroscience
• Pain Management

Context:

• Acupuncture, originating from ancient Chinese culture, is widely explored for its therapeutic applications, particularly in pain relief.
• Scientific research investigates the efficacy and underlying mechanisms of acupuncture, including its role in endocrine control and pain modulation.
• The precise nature and location of acupuncture points remain subjects of scientific inquiry, despite evidence supporting their anatomical and functional relevance.

Purpose:

• To review the scientific evidence supporting acupuncture's efficacy in pain treatment.
• To explore the potential neurophysiological mechanisms of acupuncture, focusing on endocrine control and the release of endogenous opioids.
• To analyze the anatomical and functional bases of acupuncture points and meridians through the study of referred pain.

Summary:

• Acupuncture stimulation, whether mechanical or electrical, activates endocrine mechanisms that release pain-relieving substances, similar to endogenous opioids.
• Analysis of referred pain supports the anatomical and functional validity of acupuncture points and meridians, correlating them with pain areas.
• Controlled studies face challenges in defining placebo criteria, with differing interpretations based on traditional versus neurophysiological models of acupuncture.

Impact:

• Provides a scientific perspective on acupuncture's role in pain management, bridging traditional concepts with modern neurophysiology.
• Highlights the importance of peripheral stimulation in activating natural pain-relief pathways, applicable to various therapeutic techniques.
• Encourages further research into the precise mechanisms and optimal application of acupuncture for effective pain treatment.