Abstract
The surface activity and opioid potency of peptide analogues of enkephalins are described. The molecules under study have as a general formula: Tyr-D · Met-Gly-Phe-Pro-NH-(CH2)n-CH3, n being 5, 9 or 13. The interaction of these peptide-alkylamides with PC, PS, PI and GM1 monolayers and their opioid activity measured by the GPI (guinea pig ileum) test are highly dependent on the hydrophobicity of the molecule. Moreover, the GPI muscle contraction records show a strong hydrophobic interaction between the peptides and the bilayer components, that holds the molecules anchored to the membrane and increases the duration of the effect.
| Original language | English |
|---|---|
| Pages (from-to) | 111-117 |
| Number of pages | 7 |
| Journal | International Journal of Pharmaceutics |
| Volume | 70 |
| Issue number | 1-2 |
| DOIs | |
| Publication status | Published - 31 Mar 1991 |
| Externally published | Yes |
Keywords
- Cholesterol
- Compression isotherm
- Ganglioside
- Monolayer
- Naloxone
- Penetration kinetics
- Peptide
- Phospholipid
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