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U-101017

CAS No. : 170568-47-5

MCE 站：U-101017

产品活性：U-101017 是 benzodiazepine 受体 和 GABAA 受体 的部分激动剂，具有抗焦虑的作用。

研究领域：Membrane Transporter/Ion Channel  |  Neuronal Signaling

作用靶点：GABA Receptor

In Vitro: PNU-101017 potentiates GABA-stimulated Cl^- currents at low concentrations (<1 μM). U-101017 concentration-dependently inhibits the binding of [³H]FNZ to the membrane preparation of rat cerebral cortex in vitro with K_i of 3.37±0.22 nM.

In Vivo: Pre-ischemic treatment with either PNU-101017 significantly protects the CA1 neuronal population, and PNU-101017 reduces the loss to 50%. Delaying PNU-101017 administration until immediately after reperfusion does not reduce the neuroprotective activity. U-101017 (30 μmol/kg, p.o.) time-dependently blocks [³H]FNZ binding to the mouse cerebral cortex. U-101017 dose-dependently decreases the levels of cGMP with ED₅₀s of 260.0 (163-425) and 0.37 (0.12-1.04) in nonstressed and foot shock-stressed mice, respectively. Flumazenil, an antagonist of GABAA receptors, has no significant effect on cGMP in nonstressed mice, but pretreatment with flumazenil significantly blocks U-101017 (10 μmol/kg, p.o.)-induced reductions in cGMP. In stressed mice, flumazenil is ineffective in altering cerebellar cGMP, but pretreatment with these doses of flumazenil significantly (p < 0.01) blocks U-101017-induced attenuation of stress-induced elevations in cGMP.

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