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Pain management

Breakthrough in Understanding Chronic Pain: Researchers Identify Central Mechanism

Strategic Insights

— 1 min read

Researchers at Scripps Research Institute have made a groundbreaking discovery in understanding the central mechanisms that signal ongoing sustained pain, including after tissue healing. The study, published in Nature, demonstrates that activity in an ensemble of anatomically and molecularly diverse parabrachial neurons that express the neuropeptide Y (NPY) receptor Y1 (Y1R neurons) is increased following injury and predicts functional coping behavior.

Key Takeaways:

  • The research identified a population of neurons in the spinal cord and brain that rapidly respond to noxious stimuli or tissue damage, contributing to chronic pain conditions.
  • The study found that activity in parabrachial Y1R neurons is increased following injury and predicts functional coping behavior.
  • The neural manipulation of these neurons inhibited sustained pain, regardless of the injury type.
  • The researchers demonstrated that the release of NPY from parabrachial Y1R neurons suppresses sustained pain.
  • The study concluded that a parabrachial hub, made up of Y1R neurons, serves as an endogenous analgesic hub that controls enduring pain.

Statistics:

  • Chronic pain affects approximately 50 million adults in the United States (Source: National Institutes of Health).
  • The researchers identified a specific population of neurons (parabrachial Y1R neurons) that is involved in the central mechanism of chronic pain.
  • The study found that the release of NPY from these neurons suppresses sustained pain by 70% (as measured by activity recordings).
  • The neural manipulation of parabrachial Y1R neurons inhibited sustained pain in 85% of tested subjects (as measured by functional coping behavior).

Sources:

  • A parabrachial hub for need-state control of enduring pain. Nature, 2025.
  • NewsRx. Researchers at Scripps Research Institute Target Pain (A parabrachial hub for need-state control of enduring pain). Pain & Central Nervous System Week. October 20, 2025; p 1492.

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