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Ginsenoside Rf
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Ginsenoside Rf
CAS No. : 52286-58-5
MCE 站:Ginsenoside Rf
产品活性:Ginsenoside Rf 是人参根的一种微量成分。 Ginsenoside Rf 抑制 N 型 Ca2+ 通道。
研究领域:Membrane Transporter/Ion Channel | Neuronal Signaling | Metabolic Enzyme/Protease
作用靶点:Calcium Channel | Endogenous Metabolite
In Vitro: Ginsenoside Rf is a saponin, which is present in only trace amounts within ginseng. At saturating concentrations, Ginsenoside Rf rapidly and reversibly inhibits N-type, and other high-threshold, Ca2+ channels in rat sensory neurons to the same degree as a maximal dose of opioids. The effect is dose-dependent (half-maximal inhibition: 40 μM) and it is virtually eliminated by pretreatment of the neurons with pertussis toxin, an inhibitor of G(o) and Gi GTP-binding proteins. Ginsenoside Rf also inhibits Ca2+ channels in the hybrid F-11 cell line.
In Vivo: Since inhibition of Ca2+ channels in sensory neurons contributes to antinociception by opioids, analgesic actions of Ginsenoside Rf are tested. Dose-dependent antinociception is found by systemic administration of Ginsenoside Rf in mice using two separate assays of tonic pain: in the acetic acid abdominal constriction test, the ED50 is 56±9 mg/kg, a concentration similar to those reported for aspirin and acetaminophen in the same assay; in the tonic phase of the biphasic formalin test, the ED50 is 129±32 mg/kg.
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