简介:OnJune3-4,2015,ChinaInstituteofInternationalStudiesandSino-RussianFriendship,PeaceandDevelopmentCounciljointlyhostedtheinternationalconferenceon'MemorizingtheHistoryandCreatingtheFuture:InCommemorationofthe70thAnniversaryoftheVictoryofWorldAnti-fascistWar'inBeijing.DelegatesfromChinaandRussiaexplored
简介:AIM:Toinvestigatetheanti-apoptoticcapabilityofthehepatitisBvirus(HBV)intheHepG2hepatomacelllineandtheunderlyingmechanisms.METHODS:CellviabilityandapoptosisweremeasuredbyMTTassayandflowcytometry,respectively.Targetedknockdownofmanganesesuperoxidedismutase(MnSOD),AMP-activatedproteinkinase(AMPK)andhepatitisBvirusXprotein(HBx)genesaswellasAMPKagonistAICARandantagonistcompoundCwereemployedtodeterminethecorrelationsofexpressionofthesegenes.RESULTS:HBVmarkedlyprotectedthehepatomacellsfromgrowthsuppressionandcelldeathintheconditionofserumdeprivation.AdecreaseofsuperoxideanionproductionaccompaniedwithanincreaseofMnSODexpressionandactivitywasfoundinHepG2.215cells.Moreover,AMPKactivationcontributedtotheup-regulationofMnSOD.HBxproteinwasidentifiedtoinducetheexpressionofAMPKandMnSOD.CONCLUSION:OurresultssuggestthatHBVsuppressesmitochondrialsuperoxidelevelandexertsanantiapoptoticeffectbyactivatingAMPK/MnSODsignalingpathway,whichmayprovideanovelpharmacologicalstrategytopreventHCC.
简介:Anewcerebroside,1-O-(β-D-glucopyranosyloxy)-(2S,3R,4E,8Z)-2-[(2′R)-2’-hydroxylignoceranoylamino]-4,8-tetradecene-3-diolwasisolatedfromthe60%EtOHextractoftraditionalChinesemedicalplantCyperusrotundusL.Itsstructurewasdeterminedonthebasisofspectroscopicdata.Thisnewcompoundshowedanti-proliferationeffectonvascularsmoothmusclecells(VSMCs).
简介:Thirty-ninewomenofreproductiveagesufferingfromchronicpelvicinflammatorydisease(PID)foratleasttwoyears,previouslytreatedpharmacologicallywithnoeffect,wereenrolledinafour-weektherapeuticprotocolconsistingof12acupuncturetreatmentsperformedwiththefrequencyofthreeperweek.Ineachfemalepatientatbaselineandafterthestudy,painscoreandthefollowingparametersinbloodserumwereevaluated:concentrationofimmunoglobulinM(IgM),albumins,alphal-globulins,alpha2-globulinsandgamma-globulins,erythrocytesedimentationrate(ESR)andwhitebloodcell(WBC)count.Duringthestudy,weobtainedasignificantdropinESRandIgMlevelstogetherwithariseingamma-globulinconcentrations.Asignificantdecrease(from4.89±0.82to0.63±1.05)inpainscorewas
简介:Vagusnervestimulationexertsprotectiveeffectsagainstischemicbraininjury;however,theunderlyingmechanismsremainunclear.Inthisstudy,aratmodeloffocalcerebralischemiawasestablishedusingtheocclusionmethod,andtherightvagusnervewasgivenelectricalstimulation(constantcurrentof0.5mA;pulsewidth,0.5ms;frequency,20Hz;duration,30seconds;every5minutesforatotalof60minutes)30minutes,12hours,and1,2,3,7and14daysaftersurgery.Electricalstimulationofthevagusnervesubstantiallyreducedinfarctvolume,improvedneurologicalfunction,anddecreasedtheexpressionlevelsoftumornecrosisfactor-αandinterleukin-6inratswithfocalcerebralischemia.Theexperimentalfindingsindicatethattheneuroprotectiveeffectofvagusnervestimulationfollowingcerebralischemiamaybeassociatedwiththeinhibitionoftumornecrosisfactor-αandinterleukin-6expression.
简介:UsingTime-VaryingAR(TVAR)modelandadaptivenotchfilterisanewmethodforthenon-stationaryjammersuppressioninDirectSequenceSpreadSpectrum(DSSS).TheperformanceofTVARmodelforInstantaneousFrequency(IF)estimationwillbeaffectedbysomefactorssuchasbasisfunctions.Focusingonthisproblem,theoptimalbasisfunctionofTVARmodelfortheIFestimationoftheLFMsignalisobtainedinthispaper.Besidesthedepthandwidthofnotching,thephasepropertiesofnotchfilteraffecttheSignal-to-Interferenceplus-NoiseRatio(SINR)ofcorrelationoutputtothenarrowbandjammersuppressioninDSSS,inresponsetotheproblemtheclosedsolutionofcorrelationoutputSINRimprovementhasbeenderivedwhenasinglefrequencyjammerpassesthroughdirectIIRnotchfilter,anditsperformancehasbeencomparedwiththoseoffivecoefficientFIRfilters.Later,anovelmethodforLFMjammersuppressionbasedonFourierbasisTVARmodelanddirectIIRnotchfilterisproposed.Thesimulationresultsshowtheeffectivenessoftheproposedmethod.
简介:Objective:Therecurrenceorprogressionunderendocrinetherapyinhormonereceptor-positive(HR+)advancedbreastcancer(ABC)remainedacriticalclinicalchallenge.Chidamideisanoralsubtype-selectivehistonedeacetylase(HDAC)inhibitorwithmultiplefunctionsintumorgrowthinhibitionandmicroenvironmentmodulationviaepigeneticreprogramming.Thepurposeofthisstudywastoevaluatethesafety,pharmacokinetics(PK),andpreliminaryefficacyofchidamideincombinationwithexemestaneinHR+ABCpatients.Methods:EligiblepatientswerepostmenopausalwomenwithHR+ABCrecurrentorprogressedtoatleastoneendocrinetherapy.Bloodsampleswereobtainedintherun-inperiodandthefirstdayofcombinationtreatmentforPKanalysis.Incombinationtreatment,patientsweregivenexemestane25mgdailyandchidamide30mgtwiceaweek(BIW)untilprogressionofdiseaseorintolerabletoxicities.Atreatmentcyclewasdefinedas4weeks.Safety,PKparameters,andpreliminaryefficacywereevaluated.Results:Atotalof20patientswereenrolledbetweenJulyandDecember,2015.Themediannumberoftreatmentscyclewas5.2(20.8weeks)with2patientsstillontreatmentatthedatacut-offdateofOctober,2017.Thetreatment-relatedadverseevents(AE)≥grade3inmorethan2patientswereneutropenia(35%),thrombocytopenia(30%),andleucopenia(20%).Theplasmaexposureofexemestanewasconsistentinthepresenceorabsenceofchidamide.Aslightincreaseinchidamideexposurewasnotedinthepresenceofexemestane,probablyduetotheinter-andintra-patientvariations.Thebestresponsein16evaluablepatientswasassessedbyResponseEvaluationCriteriainSolidTumors(RECIST),including4patientswithpartialresponse,10patientswithstabledisease.Themedianprogression-freesurvival(PFS)was7.6months.Conclusions:ThecombinationofchidamidewithexemestanewasgenerallywelltoleratedwithpromisingpreliminaryefficacyinHR+ABCpatients.Theoverallresultsfromthisstudyencouragefurtherpivotaltrialinthispatie
简介:AbstractObjective:To evaluate the efficacy of progestin-primed ovarian stimulation (PPOS) protocol in infertile women with high basal follicle-stimulating hormone (FSH) levels ≥15 IU/L.Methods:Patients with high basal FSH levels ≥15 IU/L with autologous oocytes from September 2016 to March 2019 were reviewed. Either medroxyprogesterone acetate 4 mg/d or clomiphene citrate (CC) 50 mg/d was administered daily from day 3 to the trigger day. When serum FSH levels decreased to ≤15.0 IU/L, a low dose of human menopausal gonadotropin (hMG) 75/150 IU/d was administered to promote late follicular development.Results:Two hundred and twenty women were retrospectively analyzed in this study. Among them, 139 patients were administered with PPOS protocol as the study group, and 81 patients were administered with CC protocol as the control group. The numbers of received oocytes and viable embryos were higher in the study group than those in the control group (1.5 ± 1.2 vs. 1.2 ± 0.8 and 0.8 ± 0.8 vs. 0.5 ± 0.6, respectively, P < 0.05). However, hMG duration and dosage were significantly higher in the study group than those in the control group (4.2 ± 2.7 d vs. 1.1 ± 2.3 d and 609.1 ± 424.5 IU vs. 140.7 ± 231.3 IU, respectively, P < 0.01). Incidence of luteinizing hormone surge and cycle cancellation rate were lower in the study group than those in the control group with statistical difference (2.88% vs. 16.05% and 36.50% vs. 50.63%, respectively, P < 0.05).Conclusions:PPOS protocol can effectively downregulate the endogenous FSH levels. Compared with CC protocol, treatment with PPOS protocol in patients with high basal FSH levels ≥15 IU/L could receive more oocytes and more viable embryos.
简介:同步讲解SectionA1.usingthecomputer使用电脑usev.使用;运用使用;运用Asastudent,youshouldlearnhowtouseadictionary.作为学生,你应该学会如何使用词典。拓展(1)use与for或as连用,构成短语use...for,意为'用来做……;为了……而使用',use...as意为'作为……使用;用作……'。Bamboocanbeusedforcarryingwater.
简介:MгиMO是莫斯科国立国际关系学院(MOCKOBCKийгocyдapcTBeHHbIйиHCTиTyTMeждyHapoдHbIxOTHOшeHий)的简称,是俄罗斯外交部直属的高等学校。它创建于1944年,是在莫斯科大学国际关系系的基础上建立起来的。经过60年的发展,以前只有国际、经济、法律三个系的“国关”,
简介:摘要:本文就秦二厂3/4#机组与1/2#机组在压空系统设备组成和事故处理两方面的差异进行了分析总结,并从工艺系统设备失去压缩空气以后的状态变化,对安全壳内和安全壳外仪表用压缩空气失效的事故规程进行分析和总结,而且就事故规程的可用性和正常压空生产系统失效的事件反馈进行了分析,最后结合实际机组的运行对其分别提出了一些建议,以利于在今后的工作中对3/4#机组这边的压空运行状态更加的了解,在事故预想方面准备的更加充分,并更深一步的提高运行人员在压空发生故障时紧急干预和机组状态控制的能力。
简介:Itisoftenstatedthatevencleantokamakdischargesdisruptathighdensity.Onepossibilityisthatsuchdisruptionresultfromtheenergylossarisingfromhydrogenrecyclingattheedgeoftheplasma.thisenergylosscouldleadtoacontractionofthecurrentchannelandtheproductionofadisruptivelyunstableconfiguration.