LyophilizedPowderThisproductisfreezedried.Allwatermoleculeshavebeenremoved.
BioassayTestedEverylotistried&testedinarelevantBIOLOGicalassay.
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- Zheng,G.Z. etal.(2005) J.Med.Chem. 48, 7374.
- Zhu,C.Z. etal.(2008) Eur.J.Pharmacol. 580, 314.
AlomoneLabsA-841720inhibitsmGluR1-mediatedCa2+ mobilizationinU2OScells.Dose-responseof A-841720 (#A-440)normalizedinhibitionofhumanmGluR1-mediated,L-glutamateevokedCa2+ mobilization.Cellswereloadedwithcalcium-sensitivedye,incubatedwitharangeofA-841720concentrations,andstimulatedwith5µML-glutamate(EC80).ChangesinintracellularCa2+ followingstimulationweredetectedaschangesinmaximumrelativefluorescence(RLU)usingFLIPRTETRA™.IC50 wasdeterminedat3.86nM.
- 1.Zheng,G.Z. etal.(2005) J.Med.Chem. 48, 7374.
- 2.Zhu,C.Z. etal.(2008) Eur.J.Pharmacol. 580, 314.
A-841720isapotent,non-competitiveantagonistofmGluR11,2withanIC50 of10nM1.AthigherconcentrationsitalsoinhibitsmGluR5receptorsdisplayinganIC50valueof342nM1.
Glutamateisthemostabundantexcitatoryneurotransmitterinthecentralnervoussystem.Itmodulatestheactivityofmanytypesofsynapsesbyactivatinginpartmetabotropicglutamatereceptors(mGluRs).mGluRsconsistofthreegroups:I,II,andIIIwithatotalofeightsubtypes,mGluR1tomGluR8.mGluR1playsanimportantroleinthecentralsensitizationofpainandinavarietyoffunctionswithpotentialimplicationsinneurologicalandpsychiatricdisorders1,2.
A-841720(#A-440) isahighlypure,synthetic,andbiologicallyactivecompound.
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抗人球蛋白试验,又称Coombs’试验,是诊断自身免疫性溶血性贫血(AIHA)的重要依据。
正常人直接与间接试验均为阴性,Coombs’试验阴性有时并不能排除AIHA


