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Proceedings of the National Academy of Sciences of the United States of America logoLink to Proceedings of the National Academy of Sciences of the United States of America
. 1976 Aug;73(8):2895–2898. doi: 10.1073/pnas.73.8.2895

beta-endorphin is a potent analgesic agent.

H H Loh, L F Tseng, E Wei, C H Li
PMCID: PMC430793  PMID: 8780

Abstract

beta-Endorphin, an opiate-like peptide, has potent antinociceptive properties when it is administered directly into the brain and assayed in the the tail-flick, hot-plate, and writhing tests in mice and in the wet shake test in rats. On a molar basis, beta-endorphin is 18 to 33 times more potent than morphine and its actions are blocked by the specific opiate antagonist, naloxone hydrochloride. The activity of beta-endorphin in vivo is also compared to other peptides that show opiate-like activity in assays in vitro.

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Selected References

These references are in PubMed. This may not be the complete list of references from this article.

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