New Method to Measure Both Opioid and Anti-Opioid Peptides in Blood
A single HPLC method achieved over 80% recovery of multiple opioid and anti-opioid peptides from human plasma, enabling complete opioid balance measurement.
Quick Facts
What This Study Found
Single HPLC method achieved over 80% recovery of multiple opioid and anti-opioid peptides from human plasma in one analytical run.
Key Numbers
How They Did This
Plasma samples diluted with trifluoroacetic acid, extracted on C18 cartridges, and analyzed by reversed-phase HPLC. Recovery and retention time consistency established for multiple peptide standards.
Why This Research Matters
Measuring both opioid and anti-opioid peptides simultaneously gives a complete picture of the opioid balance in patients. This is important for pain research, addiction studies, and understanding opioid drug effects.
The Bigger Picture
Pain, mood, and addiction involve a balance between opioid and anti-opioid signals. Being able to measure both sides simultaneously in a patient's blood could improve diagnosis and treatment of chronic pain, addiction, and mood disorders.
What This Study Doesn't Tell Us
Analytical method development using spiked samples. Sensitivity for measuring endogenous peptide levels in actual patient samples may vary. Method needs clinical validation.
Questions This Raises
- ?Is this method sensitive enough to detect endogenous peptide levels in clinical patient samples?
- ?Could the opioid/anti-opioid balance serve as a biomarker for chronic pain or addiction susceptibility?
Trust & Context
- Key Stat:
- Over 80% recovery Both opioid and anti-opioid peptides recovered from human plasma in a single analytical run
- Evidence Grade:
- Preliminary — method development study using spiked samples, not yet validated with clinical patient samples.
- Study Age:
- Published in 1995. HPLC methods have advanced significantly since, with modern mass spectrometry offering greater sensitivity. The concept of measuring opioid balance remains relevant.
- Original Title:
- High-performance liquid chromatographic resolution of synthetic opiate and "anti-opiate" peptides from human plasma.
- Published In:
- Journal of chromatography. B, Biomedical applications, 667(1), 49-56 (1995)
- Authors:
- Partilla, J S, You, J, Rothman, R B(3)
- Database ID:
- RPEP-00338
Evidence Hierarchy
Frequently Asked Questions
What are anti-opioid peptides?
They are naturally occurring peptides that oppose the effects of opioids in the body. The balance between opioid and anti-opioid peptides influences pain perception, mood, and responses to opioid drugs.
Why measure both sides of the opioid system?
Pain and addiction involve the balance between opioid and anti-opioid signals. Measuring only one side gives an incomplete picture, like checking only one team's score in a game.
Read More on RethinkPeptides
Cite This Study
https://rethinkpeptides.com/research/RPEP-00338APA
Partilla, J S; You, J; Rothman, R B. (1995). High-performance liquid chromatographic resolution of synthetic opiate and "anti-opiate" peptides from human plasma.. Journal of chromatography. B, Biomedical applications, 667(1), 49-56.
MLA
Partilla, J S, et al. "High-performance liquid chromatographic resolution of synthetic opiate and "anti-opiate" peptides from human plasma.." Journal of chromatography. B, 1995.
RethinkPeptides
RethinkPeptides Research Database. "High-performance liquid chromatographic resolution of synthe..." RPEP-00338. Retrieved from https://rethinkpeptides.com/research/partilla-1995-highperformance-liquid-chromatographic-resolution
Access the Original Study
Study data sourced from PubMed, a service of the U.S. National Library of Medicine, National Institutes of Health.
This study breakdown was produced by the RethinkPeptides research team. We analyze and report published research findings without making health recommendations. All interpretations are based solely on the published abstract and study data.