Ed Ayres

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A series of six synthetic octapeptides, structurally related to somatostatin, demonstrate high affinity and selectivity for mu opioid receptors in radioligand binding assays. The compounds, D-Phe-Cys-Tyr-D-Trp-Lys-Thr-Pen-Thr-NH2 (CTP), D-Phe-Cys-Tyr-D-Trp-Orn-Thr-Pen-Thr-NH2 (CTOP), D-Phe-Cys-Tyr-D-Trp-Arg-Thr-Pen-Thr-NH2 (CTAP), D-tetrahydroisoquinoline(More)