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Study breakdown

A New Endomorphin-Like Peptide Discovered in the Rat Brain

In VitroPreliminary evidence
The takeaway

A novel immunoreactive peptide related to endomorphin-2 was detected in rat brain extracts, potentially representing a new endogenous mu-opioid peptide or endomorphin precursor — expanding the known endogenous opioid repertoire.

Key finding

A novel endomorphin-2-like immunoreactive peptide was detected in rat brain extracts with different chromatographic properties from known endomorphin-

What the researchers found

A novel endomorphin-2-like immunoreactive peptide was detected in rat brain extracts with different chromatographic properties from known endomorphin-2, potentially representing a new endogenous mu-opioid peptide or modified form — expanding the endogenous opioid catalog.

Why it matters

Relevant for opioid-peptides, neuropeptides.

How the study worked

in-vitro study.

What this study cannot tell us

See abstract.

How to read the evidence

preliminary evidence.

When this study was published

Published in 2008.

The bigger picture

Advances peptide research.

Questions still open

  • Further research needed.
  • Clinical translation to evaluate.

Common questions

What was studied?
A New Endomorphin-Like Peptide Discovered in the Rat Brain
What was found?
A novel immunoreactive peptide related to endomorphin-2 was detected in rat brain extracts, potentially representing a new endogenous mu-opioid peptide or endomorphin precursor — expanding the known endogenous opioid repertoire.

Read the original research

Detection of a novel immunoreactive endomorphin 2-like peptide in rat brain extracts.

Regulatory peptides, 148(1-3), 54-61

Citation

Szemenyei, Erzsébet; Barna, István; Mergl, Zsuzsa; Keresztes, Attila; Darula, Zsuzsanna; Kató, Erzsébet; Tóth, Géza; Rónai, András Z. (2008). Detection of a novel immunoreactive endomorphin 2-like peptide in rat brain extracts.. Regulatory peptides, 148(1-3), 54-61. https://doi.org/10.1016/j.regpep.2008.03.001