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Central opioid receptors mediate morphine-induced itch and chronic itch via disinhibition

Wang Z, Jiang C, Yao H, Chen O, Rahman S, Gu Y, Zhao J, Huh Y, Ji RR (2021) Central opioid receptors mediate morphine-induced itch and chronic itch via disinhibition. Brain 144(2):665-681. doi: 10.1093/brain/awaa430

Summary: Itch is a common side effect of opioids, particularly as a result of epidural or intrathecal administration. Notably, morphine-elicited itch was suppressed by intrathecal administration of NPY and abolished by spinal ablation of GRPR+ neurons with intrathecal injection of Bombesin-SAP.

Usage: For ablation of GRPR+ neurons, mice were given an intrathecal injection of 400 ng Bombesin-SAP or Blank-SAP (control) 10 days before behavioral testing.

Related Products: Bombesin-SAP (Cat. #IT-40), Blank-SAP (Cat. #IT-21)

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