Dynorphins

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Dynorphins

Dynorphins (pronounced: dye-NOR-fins) are a class of peptides that are involved in modulating responses to pain, stress, and addiction. They are part of the opioid family of neuropeptides, which also includes endorphins and enkephalins.

Etymology

The term "dynorphin" is derived from the Greek words "dynamos" (meaning power or force) and "orphanos" (meaning unique or unusual). This reflects the unique and powerful effects that these peptides have on the body and mind.

Function

Dynorphins function by binding to kappa opioid receptors in the brain and spinal cord. This binding triggers a series of biochemical reactions that can lead to a variety of effects, including pain relief, changes in mood, and alterations in the perception of stress.

Related Terms

  • Kappa opioid receptors: The primary receptors that dynorphins bind to in the body.
  • Neuropeptide: A type of peptide that is involved in signaling in the nervous system.
  • Opioid: A class of drugs that includes natural substances like morphine and synthetic substances like fentanyl. Opioids are known for their pain-relieving properties.
  • Endorphins: Another type of opioid peptide that is produced by the body and is involved in responses to pain and stress.
  • Enkephalins: A type of opioid peptide that is involved in regulating pain and emotional responses.

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