In chronic pain conditions, Substance P often plays what role?

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Multiple Choice

In chronic pain conditions, Substance P often plays what role?

Substance P helps amplify pain signaling and inflammation in chronic pain. It’s released from the ends of C fibers when tissue is damaged and binds to receptors on neurons in the spinal cord, boosting the excitability of pain-carrying pathways. This increases the strength and duration of pain signals (central sensitization) and also promotes neurogenic inflammation in the periphery, which keeps nociceptors active (peripheral sensitization). Because of these effects, pain becomes more easily triggered and can persist long after the initial injury, which is a hallmark of chronic pain. It wouldn’t be accurate to say it has no role or that it only affects mood, and in many chronic pain conditions its signaling is upregulated rather than decreased.

Substance P helps amplify pain signaling and inflammation in chronic pain. It’s released from the ends of C fibers when tissue is damaged and binds to receptors on neurons in the spinal cord, boosting the excitability of pain-carrying pathways. This increases the strength and duration of pain signals (central sensitization) and also promotes neurogenic inflammation in the periphery, which keeps nociceptors active (peripheral sensitization).

Because of these effects, pain becomes more easily triggered and can persist long after the initial injury, which is a hallmark of chronic pain. It wouldn’t be accurate to say it has no role or that it only affects mood, and in many chronic pain conditions its signaling is upregulated rather than decreased.

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