简介:Quercetinisaherbalflavonoidderivedfromvariousfoodsofplantoriginandplaysaroleinanti-inflammation.Althoughanumberofresearchesinthefieldhavebeendone,themechanismofanti-inflammatoryeffectofquercetinshouldbefurtherclarified.Inthepresentstudy,weinvestigatedtheeffectsofquercetinonIL-6productionbyLPS-stimulatedneutrophilsinhuman.Neutrophilswerewerepre-treatedwithquercetinatthefinalconcentrationsofrangingfrom0-80μMfor30min,ornottreated,andthenincubatedinthepresenceorabsenceoflipopolysaccharide(LPS)atafinalconcentrationof100ng/mlforindicatedtime.ThesecretionlevelofIL-6intheculturesupernatantswasassayedbyELISA,theintracellularlevelofIL-6wasdetectedbyflowcytometryandtheexpressionofIL-6mRNAwasanalyzedbyRT-PCR.TheexperimentresultsshowedthatneutrophilsculturedwithmediumorquercetinalonedidnotexpressIL-6,butLPS(100ng/ml)inducedIL-6expressionofneutrophils.However,afterpre-treatmentofneutrophilswithquercetin(40μM)for30min,theinducibleeffectsofLPSontheincreaseofIL-6secretion,intracellularIL-6levelandIL-6mRNAexpressionbyneutrophilswereabrogated.IL-6isoneoftheimportantpro-inflammatoryfactors,especiallyinearlyphageofinflammation.Thus,ourdatasuggestedthatquercetinmightexertitsanti-inflammatoryeffectthroughnegativelymodulatingpro-inflammatoryfactors,suchasIL-6.TheinhibitoryeffectsofquercetinonIL-6productionbyneutrophilsmayprovideatheoreticalbasisonfuturetherapyofinflammation.
简介:目的探讨IL-17和IL-6在白癜风患者外周血中的变化及临床意义。方法酶联免疫吸附试验法检测60例白癜风患者和30例正常对照者外周血中IL-17和IL-6的表达水平。结果(1)寻常型白癜风患者组外周血中IL-17和IL-6水平均显著高于对照组(P〈0.01)。(2)节段型白癜风患者组外周血中IL-17和IL-6水平与正常对照组相比差异无统计学意义(P〉0.05)。(3)寻常型白癜风患者组中,进展期患者外周血IL-17水平显著高于稳定期患者(P〈0.01)。结论IL-17和IL-6可能在白癜风的发病机制中发挥重要作用;IL-17与寻常型白癜风的活动性有关。
简介:【 摘要】 目的 : 探讨白介素 - 6( IL- 6 ) , 白介素 - 8( IL- 8 ) 与胎膜早破 的关系 。 方法 : 收集 2018年 1月 -2019年 1月的 160例胎膜早破孕妇作为病例组 ; 随机抽取同期正常孕妇160例作为对照组 。 两组孕妇入院后即抽取静脉血提 取血清 ,采用 ELISA 法检测血清中IL- 6 、IL- 8的含量 ,统计分析病例组和对照组感染绒毛膜羊膜炎的几率 ,采用 western blot 测定胎盘组织中 IL- 6 、IL- 8含量 。结果 : 病例组血清中 IL- 6 ,IL- 8 的含量明显高于对照组 , 差异有统计学意义 ;病例组感染绒毛膜羊膜炎的几率明显高于对照组 , 差异有统计学意义 ; 结论 :IL- 6 ,IL- 8 可能全程参与妊娠过程 ,因此联合监测 IL- 6 、IL- 8 的含量对于预测胎膜早破新生儿的预后有一定的作用 , 尤其在降低新生儿死亡率 、预防远期并发症等方面有一定价值 。
简介:PROMOTIONOFINVITROGROWTHOFHUMANMEDULLOBLASTOMACELLSBYEXOGENEOUSIL-6LiuJiai刘佳;LiHong李宏;HamouMarie-France;NicolasdeTribolet(1Di...
简介:摘要目的探究PCT与IL-6联合检测感染性患者的诊断价值。方法本次研究对象从2016年1月1日~2016年5月31日于我院就诊的感染性患者中选取540例作为观察组,之后采取同时期来我院进行体检的健康者中选取540例作为对照组,针对540例感染性患者与540例健康体检者进行PCT以及IL-6检测,探究PCT与IL-6水平指标在观察组与对照组之间的差异性,以及PCT与IL-6在临床感染性疾病中的阳性率检出例数。结果在PCT与IL-6数值的比较中,观察组患者的结果明显高于对照组健康体检者,同时,在感染性患者阳性率的比较中,PCT的结果明显优于IL-6的检测结果,P<0.05,差异具有统计学意义。结论在临床上采用PCT与IL-6联合检测,能保障检出率的正确性。
简介:流行性感冒A病毒(IAV)感染是一个主要全球公共的健康问题。然而,因素在调停包含了煽动性的反应到这感染和他们糟糕理解的关系遗体。这里,我们证明IAV感染刺激可溶的IL-6受体(sIL-6R)的表示,涉及IL-6发信号的多功能的蛋白质。有趣地,sIL-6R表示upregulated它的自己的ligand,支持inflammatorycytokineIL-32的IL-6和那些的层次。调停shRNAsIL-6R击倒压制的IL-6和IL-32,显示这条规定在IAV感染期间依赖于sIL-6R。而且,我们的结果证明IL-32参予禁止sIL-6R的一个否定反馈环当时upregulatingIL-6表示在IAV感染期间。因此,我们证明sIL-6R是涉及对病毒的感染的尖锐煽动性的反应的一个关键细胞的因素。
简介:Theworkistoexploretherelationshipbetweenthelevelsofcytokines(IL-1βandIL-6)inC57BL/6JmicetreatedwithMPTPandbrainlateralization.Byusingpawpreferencetest,right-pawed,left-pawedmicemodelswereestablished.Followingsingleinjectionof1-methyl-4-pheny1-2,3,6-tetrahydropyrid(MPTP)(40mg/kg)toimpairdopaminergicneuron,enzymelinkedimmunosorbentassay(ELISA)kitswereusedfordetectionofplasmalevelsofcytokines.TheresultsshowedthatinsalinetreatedC57BL/6Jmice(control),therewasnoobviousdifferenceobservedbetweenleft-pawedandright-pawedmiceinplasmalevelsofIL-1βandIL-6.InMPTPtreatedmice,therewasnodifferencebetweenlevelofIL-1βinleft-pawedmiceandthatinright-pawedonesinstatistics,thatis,theywereincreasedonday1andday3,butdecreasedonday6.TheplasmalevelofIL-6waslowerinleft-pawedthanthatinright-pawedmice(p<0.005)afterMPTPtreatment.Onday1andday3,thelevelofIL-6wasalmostthesameascontrol;onday6,itwassignificantlyincreased,higherthanthatofcontrol(p<0.001)inleft-pawedmice.Whileinright-pawedmice,onday1andday3,itwasnodifferentfromcontrol,too.Andonday6,itsignificantlyincreasedincomparedwithcontrol(p<0.005).Inconclusion,thelevelofplasmaIL-6ofC57BL/6JmicetreatedwithMPTPincreased.ThevariationofIL-6wascorrelatedtobrainlateralization.
简介:TodeterminetheregulatoryeffectsofestrogenandcytokineIL-6andIL-8onthegrowthofepithelialovariancancer(OVCA),wefirstexaminedthestatusofestrogenreceptors(ERαandERβ),IL-6receptor(IL-6Rαandgp130),andIL-8receptor(IL-8RAandIL-8RB)onfiveepithelialOVCAcelllinesbysemiquantitativeRT-PCRandWesternblotanalysis.Resultsshowedthattheexpressionsofthesereceptorswerevariableonthefivecells.ThoseOVCAcellsexpressingthereceptorswereselectedtostudyrelatedmolecularmechanism.MTTassaywasperformedtoobservetheeffectsof17β-estradiol(E2),IL-6andIL-8oncellproliferation.WediscoveredthatE2markedlypromotedtheproliferationofCAOV-3andOVCAR-3cellinatime-anddose-dependentmanner.Tamoxifen(Txf),anERinhibitor,completelyblockedtheproliferationoftheE2-inducedcells,andIL-6-or/andIL-8-neutralizingantibodyonlyshowedpartiallyblockingactivity.IL-6andIL-8wereabletosignificantlystimulateCAOV-3andOVCAR-3cellproliferationinatime-anddose-dependentmanner,whichhadapotentialsynergisticeffectonCAOV-3cellsbutnotonOVCAR-3cells.Thecellproliferationinducedbythesetwocytokineswasabolishedcompletelybytheirspecificneutralizingantibodies,partiallybyTxf,butnotbyunrelatedgoatIgG.Takentogether,ourresultssuggestedthatestrogen,IL-6andIL-8couldmodulateOVCAgrowthbyformingareciprocalcascadewithamplifyingeffect.Cellular&MolecularImmunology.
简介:Objectiwe:InordertodetecttheroleofmonocytesinHSV-2infection,westudiedtheeffectofherpessim-plexVirus-2infectionontheproductionoftumorne-crosisfactor(TNF-α),interleukin-6(IL-6)secretedbymonocytes.Methods:MonocyteswereinfectedbyHSV-2(333Strain).Culturesupernatantswerecollectedat1,3,5,7dayspost-infection.ThelevelsofTNF-α,IL-6weremeasuredbyenzyme-linkedimmunosorbentas-say(ELISA).Results:ThelevelsofTNF-αsecretionbymono-cytessignificantlydecreasedonfirstdaypost-infection.ThelevelsofIL-6significantlydecreasedonfirstandthirddayspost-infection,andthengradu-allyincreasedtothecontrolonseventhdaypost-infection.Conclusions:TNF-αandIL-6productionbymono-cyteswasinhibitedduringHSV-2infection.Thepro-ductionofcytokinesmayplayanimportantroleinherpessimplexviurs-2pathogenicityandimmunity.
简介:摘要目的探讨血清中IL-6、TNF-α的表达在子痫前期发病中的作用。方法应用放射免疫法分别对33例重度子痫前期患者、35例轻度子痫前期患者及36例正常妊娠妇女进行血清中IL-6、TNF-α的含量测定。结果①子痫前期组患者血清中IL-6(237.24±32.13)pg/ml、TNF-α(1.82±0.28)ng/ml的表达显著高于aY-常妊娠组IL-6(118.79±15.71)pg/ml、TNF-α(1.18±0.14)ng/ml(P<0.05);②重度子痫前期组患者血清中IL-6(239.72±21.19)pg/ml、TNF-α(1.93±0.15)ng/ml的表达显著高于轻度子痫前期组IL-6(197.79±19.9)pg/ml、TNF-α(1.59±0.13)ng/ml(P<0.05);③轻度子痫前期组患者血清中IL-6、TNF-α的表达显著高于正常妊娠组(P<0.05)。结论血清中IL-6、TNF-α的高度表达与子痫前期的发病密切相关,两者在子痫前期的发生、发展中起到重要作用。
简介:摘要: 目的 研究降钙素原(简称PCT)和白介素6(简称IL-6)对于感染性疾病的诊断效能。 方法,选取2021-2022年期间入院接受治疗的感染性疾病患者149例,同期到院进行健康体检的正常对照组68例,分别对两组患者进行PCT、IL-6的检测,并将结果进行分析比较。 结果:感染性疾病组患者PCT水平(10±2.08 ng/mL)、IL-6水平(137.82±24.03 pg/mL)与正常对照组患者PCT水平(0.27±0.09 ng/mL)、IL-6水平(11.01±2.09 pg/mL)存在极显著性差异(P<0.01),PCT截断值选取为0.1915ng/mL时诊断感染性疾病的灵敏度为 88.6%,特异度为 75% , IL-6截断值选取为6.55pg/mL诊断感染性疾病的灵敏度为94%,特异度为 72.1%, PCT、IL-6单独诊断曲线下面积分别为:0.897、0.910,PCT、IL-6联合诊断感染性疾病下面积为0.914,联合诊断能提高感染性疾病检出率。 结论:感染性疾病患者PCT和IL-6水平叫正常健康人群明显上升,可以通过检测PCT和IL-6有效筛查感染性疾病,联合诊断能提高感染性疾病检出率,可作为感染性疾病的良好辅助诊断指标。