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  • 简介:ToclarifytheroleofAPOBEC3G(A3G)incellulardefenseagainsthepatitisBvirus(HBV),theexpressionofA3GinnormalhumanliverandtheregulationoftheA3Gexpressioninhep-atomacellline(HuH-7)wereinvestigated.ExpressionlevelofAPOBEC3smRNAinhumanliverwasdeterminedbyRT-PCR.HuH-7andHepG2cellsweretreatedwithvariousconcentrationsofIFN-α(0U/ml,100U/ml,500U/ml,1000U/ml)for12h.ThemRNAlevelsweremeasuredbyaquantitativeRT-PCR,theresultswerenormalizedrelativetothespecimenswithoutIFN-αstimulation.TotalproteinofHuH-7cellstreatedwithvariousconcentrationsofIFN-αfor48hwassubjectedtoWesternblotanalysis.Forreportergeneassay,HuH-7cellsweretransfectedwiththereporterplasmidscontainingIRF-Esitesanditsmutantswithdifferentlengths.Thenthecellsweretreatedwithorwithout1200U/mlIFN-aforadditional12h(1000U/ml)after24hoftransfection,andthecelllysatewaspreparedandassayedforluciferaseactivity.ItwasfoundthatnormalhumanliverexpressedthemRNAofA3G.A3GmRNAexpressioninHuH-7andHepG2cellswereup-regulatedbyIFN-αstimulationinadose-depen-dentmanner.WesternblotanalysisindicatedthatA3GproteinexpressionwasalsoenhancedbyIFN-αstimulation.SequenceanalysisshowedtheexistenceofputativesitesofIFNregulatoryfactorelement(IRF-E)in5'regionofA3Ggeneupstreamtheinitiationcodon.IFN-αstimulationresultsin6-to8-foldincreaseinluciferaseactivityincellstransfectedwiththeplasmidcontainingIRF-Esitesofthe5'upstreamsequences,whereasluciferaseactivitydidnotchangeincellstransfectedwiththeplasmidcontainingmutantIRF-EsitesorwithoutIRF-Esites.Asaconclusion,A3Gareexpressedinnormalhumanliver.A3Gexpressionwasup-regulatedbyIFN-αstimulationinhepatomacellsandcouldbeinvolvedinhostdefensemechanismsagainstHBV.ERF-Esitein5'regionofAP0BEC3Ggeneupstreamtheinitiationcodonplaysanimportantroleinthisp

  • 标签: 干扰素Α 人肝细胞瘤细胞 APOBEC3G 抗逆转录酶病毒活性 乙型肝炎
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  • 简介:【 摘要】 目的:对 5G+ 云视讯在伊犁河谷精准医疗新模式打造中的运用进行深入探究。 方法:通过 5G+ 云视讯方式 对 伊犁州友谊医院 2019 年 8 月所收治的 1 名 巨大肝 AE切除十自体肝移植患者手术过程进行实时直播,对整个直播过程及其效果进行探究分析。 结果: 5G+ 云视讯的运用下,整个直播过程画面清晰稳定,实现了多手术室实时会诊,手术过程顺利进行。 结论: 5G+ 云视讯对于伊犁河谷精准医疗新模式的构建具有重要意义,值得深入探究。

  • 标签: 5G 云视讯 伊犁河谷 精准医疗 服务模式
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  • 简介:【摘要】目的:探讨对严重水肿患者使用超声引导置入 18G静脉留置针的价值。方法:纳入时间为 2017年 12月到 2018年 12月,纳入 32例来我院就诊的严重水肿患者,对所有患者均行超声引导置入 18G静脉留置针。分析穿刺成功率。结果: 32例严重水肿患者中, 1次穿刺成功的患者有 30例,其占比例为 93.75%( 30/32); 2次及 2次以上穿刺成功的患者有 2例,其占比例为 6.25%( 2/32);穿刺完成的平均时间为( 6.31±0.21) min。输液中出现轻度液体渗漏的患者有 1例,其占比例为 3.13%( 1/32);将穿刺针拔出后,并采取针对性处理,病情明显好转。结论:对严重水肿患者使用超声引导置入 18G静脉留置针,可将严重水肿患者的穿刺成功率予以提升,将治疗效果提高。

  • 标签: 严重水肿 超声引导 置入 18G静脉留置针
  • 简介:Theaimofthisstudyistoinvestigatewhetherthreemononucleotidepolymorphismsatthelocus-1082,-819and-592inthepromoterregionoftheIL-10geneareassociatedwithchronicseverehepatitis.TheIL-10-592andIL-10-1082polymorphismsweregenotypedbypolymerasechainreaction-restrictionfragmentlengthpolymorphismanalysis(PCR-RFLP)whilepolymerasechainreaction-se-quencespecificprimer(PCR-SSP)assaywasusedtotesttheIL-10-819polymorphism.Thepolymor-phismsofIL-10-1082,-819and-592genesweredetectedin98patientswithchronicseverehepatitis(CSH),478patientswithchronichepatitisB(CHB),223asymptomatic(chronic)HBVcarriers(ASC)and267patientswithself-restrictedHBV.Therewassignificantdifferenceofthepolymor-phismsofIL-10-1082,IL-10-819andIL-10-592genesbetweenCSHgroupandothergroups.Thefre-quencyofAAgenotypeatIL-10genepromoter-1082locusinchronicseverehepatitispatientswashigherthanthatinasymptomaticHBVcarriers(X~2=13.314,P=0.001),andself-restrictedHBVpatients(X~2=13.545,P=0.000);thefrequencyofCCandACgenotypeatIL-10genepromoter-592locusinchronicseverehepatitispatientswashigherthanthatinchronichepatitispatients(X~2=15.970,P=0.000)(X~2=20.414,P=0.000),asymptomaticHBVcarriers(X~2=21.283,P=0.000)(X~2=28.309,P=0.000)andself-restrictedHBVpatients(X~2=17.047,P=0.000)(X~2=16.528,P=0.000);thefrequencyofTCgenotypeatIL-10genepromoter-819locusinchronicseverehepatitispatientswashigherthanthatinchronichepatitispatients(X~2=58.961,P=0.000),asymptomaticHBVcarriers(X~2=53.255,P=0.001)andself-restrictedHBVpatients(X~2=39.616,P=0.001).Sointerleukine-10genepolymorphismwasassociatedwiththechronicsevereheoatitis.

  • 标签: 肝炎 白介素-10 基因型 多态现象
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