请使用支持JavaScript的浏览器! Medchemexpress/Estradiol(Synonyms: β-Estradiol; E2; 17β-Estradiol; 17β-Oestradiol)/HY-B0141/1g_蚂蚁淘,【正品极速】生物医学科研用品轻松购|ebiomall 蚂蚁淘商城
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Medchemexpress/Estradiol(Synonyms: β-Estradiol; E2; 17β-Estradiol; 17β-Oestradiol)/HY-B0141/1g
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Medchemexpress/Estradiol(Synonyms: β-Estradiol; E2; 17β-Estradiol; 17β-Oestradiol)/HY-B0141/1g
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4000-520-616
EstrADIolisahumansexhormoneandsteroid,andtheprimaryfemalesexhormone.
Description

Estradiolisahumansexhormoneandsteroid,andtheprimaryfemalesexhormone.

InVitro

EstradiolinducesnewdendriticspinesandsynapsesonhippocampalCA1pyramidalcells.Estradioltreatmentresultedina46%increaseinNMDAreceptorbinding.EstradioltreatmentincreasesNMDAreceptorbindinginparallelwithdendriticspineandsynapsedensity.EstradioltreatmentresultsinincreasedsensitivityofCA1pyramidalcellstoNMDAreceptor-mediatedsynapticinputandthatthisincreaseiswellcorrelatedwiththeestradiol-inducedincreaseindendriticspinedensityintheapicaldendritictreeofthesecells[1].EstradiolisfoundtoreduceBa2+entryreversIBLyviaCa2+channelsinacutelydissociatedandculturedneostriatalneurons.EstradiolalsoreducesBa2+currentsbutissignificantlylesseffectivethanEstradiolinratneostriatalneurons[2]. Estradiolexertsadose-dependentinhibitionofIL-1-,TNF-,andIL-1andTNF-inducedproductionofbioassayableIL-6.EstradiolinhibitsbothTNF-inducedIL-6productionandosteoclastdevelopmentinprimarybonecellculturesderivedfromneonatalmurinecalvaria[3].

InVivo

Estradiolmediatesfluctuationinhippocampalsynapsedensityduringtheestrouscycleintheadultrat[4].Estradiolalonecanreversetheovariectomy-induceddecreaseinspinedensity.EstradiolcombinedwithProgesteroneinitiallyincreasesspinedensityforaperiodof2to6hoursbutthenresultsinamuchsharperdecreasethanisobservedfollowingestradiolalone[5]

ClinicalTrial
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References
  • [1].WoolleyCS,etal.EstradiolincreasesthesensitivityofhippocampalCA1pyramidalcellstoNMDAreceptor-mediatedsynapticinput:correlationwithdendriticspinedensity.JNeurosci.1997Mar1;17(5):1848-59.

    [2].MermelsteinPG,etal.Estradiolreducescalciumcurrentsinratneostriatalneuronsviaamembranereceptor.JNeurosci.1996Jan15;16(2):595-604.

    [3].GirasoleG,etal.17beta-estradiolinhibitsinterleukin-6productionbybonemarrow-derivedstromalcellsandosteoblastsinvitro:apotentialmechanismfortheantiosteoporoticeffectofestrogens.JClinInvest.1992Mar;89(3):883-91.

    [4].WoolleyCS,etal.Estradiolmediatesfluctuationinhippocampalsynapsedensityduringtheestrouscycleintheadultrat.JNeurosci.1992Jul;12(7):2549-54.

    [5].WoolleyCS,etal.Rolesofestradiolandprogesteroneinregulationofhippocampaldendriticspinedensityduringtheestrouscycleintherat.JCompNeurol.1993Oct8;336(2):293-306.

PreparingStockSolutions
ConcentrationVolumeMass1mg5mg10mg
1mM3.6713mL18.3567mL36.7134mL
5mM0.7343mL3.6713mL7.3427mL
10mM0.3671mL1.8357mL3.6713mL
Pleaserefertothesolubilityinformationtoselecttheappropriatesolvent.
CellAssay
[3]

Estradiolisdissolvedin0.01%ethanol.

Briefly,B9cells(5×103/wellofa96-wellplate)areculturedwithaseriesofdilutionsofthesupernatantsinafinalvolumeof100mLofRPMI1640,supplementedwith5×10-5mol/Lof2-mercaptoethanol,10%FBS,100U/mLpenicillin,and100μg/mLstreptomycininflat-bottommicrotiterplates.After42h,0.5μCiof[3H]thymidineisadded.6hlater,thecellsareharvestedandtheradioactivityincorporatedisdetermined.IL-6isquantitatedfromastandardcurvesetupwithknownamountsofrecombinanthumanormouseIL-6.Theanti-IL-6monoclonalantibodycompletelyinhibitedtheABIlityoftheB9cellstoproliferateinresponsetorecombinantmouseIL-6.Inaddition,wedeterminedthatB9cellsdonotproliferateinresponsetoIL-IorTNF,andthatantibodiestothesetwocytokinesdidnotaffectthecellproliferationinresponsetoIL-6.Further,itisestablishedthatneitherEstradiol(17β-estradiol),northe0.01%ethanolusedasvehicleintheseexperiments,hasanyeffectonthebioassay.MCEhasnotindependentlyconfirmedtheaccuracyofthesemethods.Theyareforreferenceonly.

AnimalAdmiNISTration
[1]

Estradiolisformulatedinsesameoil.

AdultfemaleSpragueDawleyratsarehousedona12hrlight/darkcyclewithunlimitedaccesstofoodandwater.Theseanimalsareleftgonadallyintact(intact),ovariectomizedandtreatedwithestradiolbenzoate(OVX+E),orovariectomizedandtreatedwithsesameoilvehicle(OVX+O).ThehormonetreatmentregimenthatisusedintheseexperimentshasbeenshownpreviouslytoresultindifferencesinCA1pyramidalcelldendriticspineandsynapsedensity.Sixdaysbeforeelectrophysiologicalanalysis,animalsareovariectomizedunderMetofaneanesthesiausingasepticsurgicalprocedure.Aftersurgery,animalsarehousedindividually.Ondays3and4aftersurgery,OVX+Eanimalsareinjected(s.c.)with10μgof17β-estradiolbenzoatein100μLofsesameoilvehicle;OVX+Oanimalsreceiveoilvehicleateachinjectiontime.Forty-eighthoursafterthesecondestradiolorvehicleinjection,animalsarekilledbydecapitationandhippocampalslicesarepreparedfromtheirbrains.Gonadallyintactanimalsarekilledatrandomstagesoftheestrouscycle.MCEhasnotindependentlyconfirmedtheaccuracyofthesemethods.Theyareforreferenceonly.

References
  • [1].WoolleyCS,etal.EstradiolincreasesthesensitivityofhippocampalCA1pyramidalcellstoNMDAreceptor-mediatedsynapticinput:correlationwithdendriticspinedensity.JNeurosci.1997Mar1;17(5):1848-59.

    [2].MermelsteinPG,etal.Estradiolreducescalciumcurrentsinratneostriatalneuronsviaamembranereceptor.JNeurosci.1996Jan15;16(2):595-604.

    [3].GirasoleG,etal.17beta-estradiolinhibitsinterleukin-6productionbybonemarrow-derivedstromalcellsandosteoblastsinvitro:apotentialmechanismfortheantiosteoporoticeffectofestrogens.JClinInvest.1992Mar;89(3):883-91.

    [4].WoolleyCS,etal.Estradiolmediatesfluctuationinhippocampalsynapsedensityduringtheestrouscycleintheadultrat.JNeurosci.1992Jul;12(7):2549-54.

    [5].WoolleyCS,etal.Rolesofestradiolandprogesteroneinregulationofhippocampaldendriticspinedensityduringtheestrouscycleintherat.JCompNeurol.1993Oct8;336(2):293-306.

MolecularWeight

272.38

Formula

C₁₈H₂₄O₂

CASNo.

50-28-2

Storage
Powder-20°C3years
 4°C2years
Insolvent-80°C6months
 -20°C1month
Shipping

RoomtemperatureincontinentalUS;mayvaryelsewhere

Solvent&Solubility

DMSO:≥150mg/mL

*"<1 mg/ml"="" means="" slightly="" soluble="" or="" insoluble.="" "≥"="" means="" soluble,="" but="" saturation="">

Purity:98.45%