Beta-endorphin
Beta-endorphin
Beta-endorphin (pronounced: BAY-tuh en-DOR-fin) is a peptide that is used by your body as a neurotransmitter. It is one of the many endorphins that are released within the brain and nervous system and can produce effects of analgesia, a sense of well-being, and modulation of appetite.
Etymology
The term "Beta-endorphin" comes from the combination of words "beta", which is the second letter of the Greek alphabet often used in science to denote the second in a series, and "endorphin", which is derived from "endogenous morphine", meaning morphine produced naturally in the body.
Function
Beta-endorphin is released into the blood from the pituitary gland and is involved in pain relief, pleasure, and relaxation. It is considered a natural painkiller because it binds to the opioid receptors in the brain to prevent the release of substance P, a molecule involved in transmitting pain.
Related Terms
- Endorphins: Endorphins are a group of hormones secreted within the brain and nervous system and having a number of physiological functions. They are peptides that activate the body's opiate receptors, causing an analgesic effect.
- Pituitary gland: The pituitary gland is a small pea-sized gland that plays a major role in regulating vital body functions and general wellbeing. It is referred to as the body's 'master gland' because it controls the activity of most other hormone-secreting glands.
- Opioid receptors: Opioid receptors are a group of inhibitory G protein-coupled receptors with opioids as ligands.
External links
- Medical encyclopedia article on Beta-endorphin
- Wikipedia's article - Beta-endorphin
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