Lumiprobe,LLC.是美国一家高品质生物技术公司，专业提供分子生物学研究用的活性荧光染料。主要产品有：活性染料（ReactiveDye）和SYBRGreenI染料，定制合成荧光双标记引物。产品主要应用：点击化学（ClickChemistry）、蛋白质组学研究中的双向荧光差异凝胶电泳（2DDIGE）和实时荧光定量PCR（RealtimePCR）。
Lumiprobe产品包括：羧酸类染料、羰基类染料，标记分子氨基活性染料，标记分子巯基活性染料，动物活体成像用染料，蛋白质、多肽、核酸等生物分子标记染料、点击化学等。渠道正规（市场上部分是分装，质量不能保证），质量保证，价格极具竞争力,而且我们的货期仅需要5-7工作日，不需要像其他家攒单导致货期3-4周。 Thisisakitforthelabelingofantibodiesandproteinsof similarsizewithsulfo-Cyanine5fluorophore.ThedyeisattachedbyNHSesterchemistry,andthentheexcessofthefluorophoreisremovedbymeansofgelfiltrationusingenclosedspincolumns.Theprotocolrequiresonlyaround40minutesoftime,andprovidesdesaltedantibodyinPBSbuffercontainingoptimalnumberoffluorophoresperAb.Thekitcontainscomponentsfor10reactions,upto100ugofantibodyperreaction.
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如题，之前买的sigma的粉末，太贵。加培养基又不方便
果糖胺是血浆中的蛋白质与葡萄糖非酶糖化过程中形成的高分子酮胺结构类似果糖胺的物质，它的浓度与血糖水平成正相关，并相对保持稳定。它的测定却不受血糖的影响。由于血浆蛋白的半衰期为17～20天，故果糖胺可以反映糖尿病患者检测前1～3周内的平均血糖水平。从一定程度上弥补了糖化血红蛋白不能反映较短时期内血糖浓度变化的不足。果糖胺的测定快速而价廉（化学法），是评价糖尿病控制情况的一个良好指标，尤其是对血糖波动较大的脆性糖尿病及妊娠糖尿病，了解其平均血糖水平有实际意义。但果糖胺不受每次进食的影响，所以不能用来直接指导每日胰岛素及口服降糖药的用量。血清果糖胺正常值为1.64～2.64mmol/L，血浆中果糖胺较血清低0.3mmol/L。
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ICML2017:PhaseIIIbMAGNIFYStudyofLenalidomideandRituximabCombinationinRelapsed/RefractoryFollicularandMarginalZoneLymphoma
AninterimanalysisofMAGNIFY,aphaseIIIb,randomized,open-label,multicenterstudyoftheR2combinationregimen(lenalidomide[Revlimid]plusrituximab[Rituxan])inpatientswithrelapsedorrefractorymarginalzonelymphoma,waspresentedattheInternationalConferenceonMalignantLymphoma(ICML)inLugano,Switzerland.ThisanalysisexpandedupondatapresentedearlierinthemonthattheASCOAnnualMeeting(Abstract7502).
TheMAGNIFYstudycontinuestoevaluatetheclinicalactivityof12cyclesofR2combinationtherapyfollowedbyrandomizationtoeither18cyclesofR2maintenanceor18cyclesofrituximabmonotherapy,inpatientswithrelapsedorrefractoryfollicularlymphoma,marginalzonelymphoma,ormantlecelllymphoma.Approximately500patientsareplannedtobeenrolledinthestudy.
Theprimaryendpointisprogression-freesurvival.Secondaryendpointsincludeoverallsurvival,overallresponserate,completeresponse,improvementofresponse,durationofresponse,durationofcompleteresponse,timetonextlymphomatreatment,timetohistologictransformation,safety,andexploratoryquality-of-lifemeasures.EnrollmentintheMAGNIFYstudyisongoing.
ASCOData
AttheASCOAnnualMeeting,interimdatawerepresentedfromananalysisofasubsetofpatientsfromtheMAGNIFYstudywithrelapsedorrefractoryfollicularlymphoma(n=160)withearly-relapse(n=52)anddouble-refractory(n=50)disease.
AttheJanuary9,2017,datacutoff,the1-yearprogression-freesurvivalforallfollicularlymphomapatientswas70%,with65%fordouble-refractorypatientsand49%forearly-relapsepatients.Additionally,evaluablefollicularlymphomapatients(n=128)hadanoverallresponserateof66%withacompleteresponse/completeresponse–unconfirmedrateof38%.Fordouble-refractorypatients(n=42),overallresponseratewas45%withacompleteresponse/completeresponse–unconfirmedrateof21%andforearly-relapsepatients(n=43),overallresponseratewas47%withacompleteresponse/completeresponse–unconfirmedrateof21%.Mediandurationofresponsewasnotmetatamedianfollow-upof10.2months.
Themostcommongrade3or4adverseeventsobservedinthestudyforallfollicularlymphoma,double-refractory,andearly-relapsepatients,respectively,wereneutropenia(29%,42%,37%),fatigue(6%,4%,8%),leukopenia(5%,8%,10%),thrombocytopenia(4%,8%,4%),andlymphopenia(3%,6%,4%).
ICMLData
DatapresentedatICMLinaseparateanalysisfocusedonpatientswithmarginalzonelymphoma(n=38),includingnodalmarginalzonelymphoma(n=18),splenicmarginalzonelymphoma(n=10),andmucosa-associatedlymphoidtissuelymphoma(n=10).
Atamedianfollow-upof13.8monthsfrominitiationoftherapywiththeR2combination,evaluablepatientswithmarginalzonelymphoma(n=32)achievedanoverallresponserateof66%withacompleteresponse/completeresponse–unconfirmedrateof44%.Evaluablenodalmarginalzonelymphomapatients(n=14)hadanoverallresponserateof57%withacompleteresponse/completeresponse–unconfirmedrateof57%.Evaluablesplenicmarginalzonelymphomapatients(n=8)hadanoverallresponserateof63%withacompleteresponserateof25%;andevaluablemucosa-associatedlymphoidtissuelymphomapatients(n=10)hadanoverallresponserateof80%withacompleteresponse/completeresponse–unconfirmedrateof40%.Mediandurationofresponsewasnotreachedforanygroup.
Themostcommongrade3or4adverseeventsobservedinpatientswithmarginalzonelymphomawereneutropenia(32%),thrombocytopenia(16%),andleukopenia(11%).
“Thechemotherapy-freecombinationoflenalidomideandrituximab,withcomplementarymechanismsofactionthatarethoughttoenhanceantibodydependentcellularcytotoxicity,continuestoshowencouragingactivityandatolerablesafetyprofileinindolentlymphomas,andparticularlyindifficult-to-treatpatientsubsets,”saidDavidJ.Andorsky,MD,co–principalinvestigatorofthestudyandmedicaloncologistattheRockyMountainCancerCentersinBoulder,Colorado.“Theseresultsinpatientswhohadfailedmultipletherapiesorrelapsedearly,aswellastheactivityinmarginalzonepatientsmeritfurtherstudyinthisareaofindolentlymphoma.”
AboutMAGNIFY
MAGNIFYisaphaseIIIb,multicenter,open-labelstudyofpatientswithgrades1–3bortransformedfollicularlymphoma,marginalzonelymphoma,ormantlecelllymphomawhoreceivedatleast1priortherapyandhadstageI–IV,measurabledisease.Approximately500patientsareplannedforenrollmentin12cyclesofR2induction,withaprojected314patientswithatleaststablediseaseafterinductionrandomized(1:1)to2maintenancearms.
Inductionincludesorallenalidomideat20mg/d,days1–21per28-daycycle(d1–21/28)plusintravenousrituximabat375mg/m2,days1,8,15,and22ofcycle1andday1ofcycles3,5,7,9,and11(28-daycycles).Patientsarethenrandomizedtomaintenancelenalidomideat10mg/d,days1to21/28,cycles13to30,plusrituximabat375mg/m2,day1ofcycles13,15,17,19,21,23,25,27,and29(R2,armA),orrituximabalone(sameschedule,armB).PatientsreceivingR2maintenanceafter18cyclesmaycontinuemaintenancelenalidomidemonotherapyat10mg/d,days1–21/28(perpatientand/orinvestigatordiscretion),untildiseaseprogressionastolerated.Patientswillbefollowedfor≥5yearsafterthelastpatientinitiatesinductiontherapy.
名称：氨氧基乙酸盐;羧甲氧基胺半盐酸盐；
分子式：C2H5NO3·0.5HCl
分子质量：109.30
熔点：156℃
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FDAApprovesLenalidomideasMaintenanceTherapyforPatientsWithMultipleMyelomaFollowingAutologousStemCellTransplant
OnFebruary22,theU.S.FoodandDrugAdmiNISTration(FDA)expandedtheexistingindicationforlenalidomide(Revlimid)10mgcapsulestoincludeuseforpatientswithmultiplemyelomaasmaintenancetherapyfollowingautologoushematopoieticstemcelltransplant.TheexpandedindicationmakeslenalidomidethefirstandonlytreatmenttoreceiveFDAapprovalformaintenanceusefollowingautologoushematopoieticstemcelltransplant.
“Autologousstemcelltransplantafterinductiontherapyispartofthecontinuumofcarefortransplant-eligIBLe[patientswith]multiplemyeloma.However,mostpatientswillstillseetheirdiseaserecurorprogressafterthistreatment,”saidPhilipMcCarthy,MD,Director,BloodandMarrowTransplantCenter,DepartmentofMedicineatRoswellParkCancerInstitute.“Lenalidomidemaintenancetherapy,whichhasbeenshowntoincreaseprogression-freesurvivalfollowingautologousstemcelltransplantinclinicaltrials,canbeconsideredastandardofcareforthesepatients.”
ClinicalTrialFindings
Theapprovalwasbasedontwolargestudies—CALGB100104andIFM2005-02—includingmorethan1,000patientscomparinglenalidomidemaintenancetherapygivenuntildiseaseprogressionorunacceptabletoxicityafterautologoushematopoieticstemcelltransplantvsnomaintenance.Inbothstudies,theprimaryefficacyendpointwasprogression-freesurvival.
Inthemostcurrentprogression-freesurvivalanalysis,Study1(CALGB100104)demonstratedamedianprogression-freesurvivalof5.7years(95%confidenceinterval[CI]=4.4–notestimable)vs1.9years(95%CI=1.6–2.5)fornomaintenance,adifferenceof3.8years(hazardratio[HR]=0.38;95%CI=0.28–0.50).
Study2(IFM2005-02)alsoshowedabenefitwithamedianprogression-freesurvivalof3.9years(95%CI=3.3–4.7)vs2years(95%CI=1.8–2.3)fornomaintenance,adifferenceof1.9years(HR=0.53;95%CI=0.44–0.64).
Individualstudieswerenotpoweredforanoverallsurvivalendpoint.
AdescriptiveanalysisshowedthemedianoverallsurvivalinStudy1was9.3years(95%CI=8.5–notestimable)forpatientswhoreceivedlenalidomidevs7years(95%CI=5.9–8.6)fornomaintenance(HR=0.59;95%CI=0.4–0.78).InStudy2,medianoverallsurvivalwas8.8years(95%CI=7.4–notestimable)forpatientswhoreceivedlenalidomidevs7.3years(95%CI=6.7–9.0)fornomaintenance(HR=0.90;95%CI=0.72–1.13).
AdverseEvents
Themostfrequentlyreportedadversereactionsin≥20%(lenalidomidearm)acrossbothmaintenancestudies(Study1,Study2respectively)wereneutropenia(79%,61%);thrombocytopenia(72%,24%);leukopenia(23%,32%);anemia(21%,9%);upperrespiratorytractinfection(27%,11%);bronchitis(5%,47%);nasopharyngitis(2%,35%);cough(10%,27%);gastroenteritis(0%,23%);diarrhea(55%,39%);rash(32%,8%);fatigue(23%,11%);asthenia(0%,30%);musclespasm(0%,33%);andpyrexia(8%,21%).ThemostfrequentlyreportedGrade3or4reactions(morethan20%inthelenalidomidearm)includedneutropenia,thrombocytopenia,andleukopenia.
Thefrequenciesofonsetofadversereactionsweregenerallyhighestinthefirst6monthsoftreatmentandthenthefrequenciesdecreasedovertimeorremainedstablethroughouttreatment.
Inpatientsreceivinglenalidomidemaintenancetherapy,hematologicsecondprimarymalignanciesoccurredin7.5%ofpatientscomparedto3.3%inpatientsreceivingplacebo.Theincidenceofhematologicplussolidtumor(excludingsquamouscellcarcinomaandbasalcellcarcinoma)secondprimarymalignancieswas14.9%,comparedto8.8%inpatientsreceivingplacebowithamedianfollow-upof91.5months.Nonmelanomaskincancersecondprimarymalignancies,includingsquamouscellcarcinomaandbasalcellcarcinoma,occurredin3.9%ofpatientsreceivinglenalidomidemaintenance,comparedto2.6%intheplaceboarm.
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原文链接：http://www.ascopost.com/News/40561
AdditionofIxazomibtoLenalidomide/DexamethasoneImprovesProgression-FreeSurvivalinRelapsed/RefractoryMultipleMyeloma
Moreauetalfoundthataddingtheoralproteasomeinhibitorixazomib(Ninlaro)tolenalidomide(Revlimid)anddexamethasonesignificantlyprolongedprogression-freesurvivalamongpatientswithrelapsed,refractory,orrelapsedandrefractorymultiplemyeloma.TheyreportedthefindingsfromthephaseIIITOURMALINE-MM1trialinTheNewEnglandJournalofMedicine.ThetrialsupportedtherecentU.S.FoodandDrugAdmiNISTration(FDA)approvalofixazomibinpreviouslytreatedmultiplemyeloma,makingitthefirstapprovedoralproteasomeinhibitor.
StudyDetails
Inthedouble-blindtrial,722patientsfrom147sitesin26countrieswererandomizedbetweenAugust2012andMay272014toreceiveixazomib(n=360)orplacebo(n=362)pluslenalidomideanddexamethasone.Treatmentconsistedof28-daycyclesoforalixazomibat4mgorplaceboondays1,8,and15;orallenalidomideat25mgondays1through21(10mginthosewithcreatinineclearance≤60or≤50mL/min/1.73m2accordingtolocalprescribinginformation);andoraldexamethasoneat40mgondays1,8,15,and22.Theprimaryendpointwasprogression-freesurvival.
Fortheixazomibvsplacebogroups,medianagewas66yearsinboth(53%vs51%>65years);58%vs56%weremale;86%vs83%werewhite;EasternCooperativeOncologyGroupperformancestatuswas0or1in95%vs93%;InternationalStagingSystem(ISS)stagewasIin63%vs64%,IIin25%vs24%,andIIIin12%inboth;78%vs72%hadcreatinineclearance≥60mL/min/1.73m2;55%vs60%hadstandard-and21%vs17%hadhigh-riskcytogenetics;numberofpriortherapieswas1in62%vs60%,2in27%vs31%,and3in11%vs9%;59%vs55%hadpriorstemcelltransplantation;diseasecategorywasrelapsedin77%inboth,refractoryin12%vs11%,relapsedandrefractoryin11%vs12%,andprimaryrefractoryin7%vs6%;priorproteasomeinhibitortherapywasbortezomib(Velcade)in69%inbothandcarfilzomib(Kyprolis)in<1%vs1%,with1%vs2%ofpatientshavingdiseaserefractorytopriortreatment;andpriorimmunomodulatorytherapywaslenalidomidein54%vs56%andthalidomide(Thalomid)in44%vs47%,with21%vs25%havingdiseaserefractorytopriortherapy.
ImprovedProgression-FreeSurvival
Aftermedianfollow-upof14.7months,medianprogression-freesurvivalwas20.6monthsintheixazomibgroupvs14.7monthsintheplacebogroup(hazardratio[HR]=0.74,P=.01).Benefitofixazomibwasconsistentacrossprespecifiedsubgroups,includingpoor-prognosissubgroupssuchasthosewithhigh-riskcytogenetics(24.1vs9.7months,HR=0.54),ISSstageIIIdisease(18.4vs10.1months,HR=0.72),thoseaged>75years(18.5vs13.1months,HR=0.87),andthosewhohadreceivedtwo(17.5vs14.1months,HR=0.75)orthree(notestimablevs10.2months,HR=0.37)priortherapies.
Overallresponserateswere78%vs72%,withtheratesofcompleteresponseplusverygoodpartialresponseof48%vs39%.Mediantimetoresponsewas1.1vs1.9months.Mediandurationofresponsewas20.5vs15.0months.Atmedianfollow-upofapproximately23months,medianoverallsurvivalhadnotbeenreachedineithergroup.
AdverseEvents
Adverseeventsof≥grade3occurredin74%oftheixazomibgroupvs69%oftheplacebogroup,withthemostcommonintheixazomibgroupbeingneutropenia(23%vs24%)andthrombocytopenia(19%vs9%).Rashofanygradewasmorecommonintheixazomibgroup(36%vs23%),asweregastrointestinaladverseevents(mostlylowgrade);22%ofixazomibpatientsand19%ofplacebopatientsreceivedantidiarrhealagents,and21%and13%receivedantiemeticdrugs.Peripheralneuropathyofanygradeoccurredin27%vs22%(grade3in2%ineach).
Seriousadverseeventsoccurredin47%vs49%.Adverseeventsledtodosereductionofanydrugin56%vs50%,discontinuationofanydrugin25%vs20%,anddiscontinuationofthestudyregimenin17%vs14%.Deathoccurredduringthestudyperiodin4%vs6%.
Theinvestigatorsconcluded:“Theadditionofixazomibtoaregimenoflenalidomideanddexamethasonewasassociatedwithsignificantlylongerprogression-freesurvival;theadditionaltoxiceffectswiththisall-oralregimenwerelimited.”
