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Taurine and tolerance to opioid peptides
Progress in Clinical and Biological Research
|January 1, 1983
Summary
Taurine may inhibit opioid peptide tolerance. This study found taurine pretreatment suppressed tolerance to DAME
Area of Science:
- Neuroscience
- Pharmacology
- Biochemistry
Background:
- Opioid peptides are widely studied for their physiological effects.
- Development of tolerance to opioids can limit their therapeutic efficacy.
- Taurine is an amino acid with various biological functions.
Purpose of the Study:
- To investigate the potential of taurine in inhibiting the development of tolerance to opioid peptides.
- To assess taurine's effect on both the physical and pain-relieving effects of opioid peptides.
Main Methods:
- Tolerance was induced in rats through repeated intracerebroventricular (IVT) administrations of DAME ( [D-Ala2, Met5]-enkephalin).
- Rats were pretreated with taurine 10 minutes prior to each DAME administration.
- Effects on akinetic, analgetic, and hyperlocomotor activity were measured.
Main Results:
- Taurine pretreatment significantly suppressed the development of tolerance to the akinetic and analgetic effects of DAME.
- Taurine also inhibited the induction of hyperlocomotor activity in DAME-tolerant rats.
- The effect of taurine on tolerance to WDS ( [D-Ser(tBu)2, Leu5]-enkephalinamide) could not be definitively concluded.
Conclusions:
- Taurine demonstrates potential as an agent to inhibit tolerance to certain opioid peptides like DAME.
- Further research is needed to clarify taurine's role in modulating tolerance to other opioid peptides.
- These findings suggest a novel therapeutic avenue for managing opioid tolerance.