Antinociceptive and respiratory effects of intrathecal H-Tyr-D-Arg-Phe-Lys-NH2 (DALDA) and [Dmt1] DALDA.

@article{Shimoyama2001AntinociceptiveAR,
  title={Antinociceptive and respiratory effects of intrathecal H-Tyr-D-Arg-Phe-Lys-NH2 (DALDA) and [Dmt1] DALDA.},
  author={Megumi Shimoyama and Naohito Shimoyama and G M Zhao and Peter W. Schiller and Hazel H. Szeto},
  journal={The Journal of pharmacology and experimental therapeutics},
  year={2001},
  volume={297 1},
  pages={364-71}
}
DALDA (H-Tyr-D-Arg-Phe-Lys-NH(2)) and [Dmt(1)]DALDA (H-Dmt-D-Arg-Phe-Lys-NH(2)) (Dmt = 2',6'-dimethyltyrosine) are potent and highly selective mu-opioid agonists (K(i)(delta)/K(i)(mu) > 10,000 and K(i)(kappa)/K(i)(mu) > 100). Both peptides carry a 3+ charge at physiological pH. Their antinociceptive and respiratory effects were compared with morphine (MOR) after intrathecal administration in rats. Both DALDA and [Dmt1]DALDA produced dose-dependent and naloxone-reversible antinociceptive effects… CONTINUE READING
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