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Tac1-expressing neurons in the periaqueductal gray facilitate the itch-scratching cycle via descending regulation

Gao ZR, Chen WZ, Liu MZ, Chen XJ, Wan L, Zhang XY, Yuan L, Lin JK, Wang M, Zhou L, Xu XH, Sun YG (2019) Tac1-expressing neurons in the periaqueductal gray facilitate the itch-scratching cycle via descending regulation. Neuron 101(1):45-59.e9. doi: 10.1016/j.neuron.2018.11.010

Objective: To determine the neural mechanism promoting the itch-scratching cycle.

Summary: Ablation of Tac1+ but not SST+ neurons decreases itch-induced scratching behavior. l/vlPAG Tac1+ neurons Induce Scratching Behavior via a Descending Pathway.

Usage: To ablate the spinal GRPR+ neurons, mice were intrathecally injected with Bombesin-SAP or Control Blank-SAP (400 ng/5 mL).

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

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