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Medchemexpress/Acetylcysteine(Synonyms: N-Acetyl-L-cysteine; LNAC; NAC)/HY-B0215/5g
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- •SciRep.2016Oct27;6:35995.
- •ToxicolInVitro.2017Jun27;44:57-65.
- •FundamClinPharmacol.2017Feb;31(1):64-74.
Description | Acetylcysteineisusedmainlyasamucolytic,whichprotectsagainstacetaminophenoverdose-inducedhepatotoxicitybymaintainingorrestoringhepaticconcentrationsofglutathione. |
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InVitro | N-acetylcysteinepreventsapoptoticDNAfragmentationandmaintainslong-termsurvivalintheabsenceofothertrophicsupportinserum-deprivedPC12cells.N-acetylcysteinealsopreventsdeathofPC12cellsandsympatheticneurons[2].N-acetylcysteinecausesdose-dependentreductionsinviABIlityinratandhumanaorticsmoothmusclecells[3].N-acetylcysteineactivatestheRas-extracellularsignal-regulatedkinase(ERK)pathwayinPC12cells.N-acetylcysteineprotectsneuronalcellsfromdeathevokedbywithdrawaloftrophicsupport.N-acetylcysteineincreasesnitricoxide(NO)releasefromprotein-boundstoresinvasculartissue.N-acetylcysteinepretreatmentofPC12cellsinterfereswithNGF-dependentsignalingandneuriteoutgrowth,anditissuggestedthatN-acetylcysteineinterfereswithredox-sensitivestepsintheNGFmechanism[4]. |
InVivo | N-acetylcysteine(150,300mg/kg)treatmentsignificantlyreduceslivertransaminasesinallgroupsoftreatment,mostlyingroupN-acetylcysteine300.LungglutathioneperoxidaseissignificantlyincreasesingroupN-acetylcysteine300(P=0.04),whiletheotheroxidationbioMarkersshownosignificantdifferences[1].N-acetylcysteineimprovescognitionof12-month-oldSAMP8miceinboththeT-mazefootshockavoidanceparADIgmandtheleverpressappetitivetaskwithoutinducingnon-specificeffectsonmotoractivity,motivationtoavoidshock,orbodyweight[5]. |
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CellAssay [2] | Forsurvivalexperiments,washedcellsareresUSPendedinRPM11640mediumandplatedin0.5mLatadensityof8-10×105perwellin24wellplasticculturedishescoatedwithrattailcollagen.Tofeed,buttoavoidlossoffloatingcells,freshmedium(0.2mL)isaddedtotheculturesondays1,5,and10.Forexperimentsinvolving“primed”PC12cells,culturesarepretreatedforl-2weekswithNGFinRPM11640mediumsupplementedwith1%heat-iN-acetylcysteinetivatedhorseserum.Thecellsarethenwashedandpassagedintoserum-freeRPM11640medium.MCEhasnotindependentlyconfirmedtheaccuracyofthesemethods.Theyareforreferenceonly. AnimalAdmiNISTration | [1] RatsarerandomLyallocatedintofivegroups:shamgroup(n=5),controlgroupwithIIR(n=8)andthreegroupswithIIRwhoaregivenN-acetylcysteineindifferentdosages:150 mg/kgintraperitoneally5 minbeforeischemia(n=8,groupN-acetylcysteine150),300 mg/kgi.p5 minbeforeischemia(n=7,groupN-acetylcysteine300),and150 mg/kgi.p5 minbeforeischemiaplus150 mg/kg5 minbeforereperfusion(n=7,groupN-acetylcysteine150 + 150).After4 hofreperfusion,theanimalsareeuthanizedbyexsanguinationfromtheaBDominalaorta.MCEhasnotindependentlyconfirmedtheaccuracyofthesemethods.Theyareforreferenceonly. References |
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