Truncated μ-Opioid Receptors With 6 Transmembrane Domains Are Essential for Opioid Analgesia

Abstract excerpt

BACKGROUND: Most clinical opioids act through μ-opioid receptors. They effectively relieve pain but are limited by side effects, such as constipation, respiratory depression, dependence, and addiction. Many efforts have been made toward developing potent analgesics that lack side effects. Three-iodobenzoyl-6β-naltrexamide (IBNtxA) is a novel class of opioid active against thermal, inflammatory, and neuropathic...

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