目的探究并分析单侧双通道内镜技术(UBE)在腰椎间盘突出(LDH)患者的治疗效果及其对日本骨科学会(JOA)评分的影响。方法选取2020年10月~2021年12月收治的69例LDH患者,按照随机数字表法将其分为观察组(n=34)和对照组(n=35)。对照组采用后...目的探究并分析单侧双通道内镜技术(UBE)在腰椎间盘突出(LDH)患者的治疗效果及其对日本骨科学会(JOA)评分的影响。方法选取2020年10月~2021年12月收治的69例LDH患者,按照随机数字表法将其分为观察组(n=34)和对照组(n=35)。对照组采用后路切开髓核摘除椎弓根内固定椎间融合治疗治疗,观察组采用UBE进行治疗。观察两组患者一般资料(年龄、性别、病变区域、手术的时间、病程、出血量等)、手术前后评分即视觉模拟评分(VAS)、JOA评分、腰痛Oswestry功能障碍指数(ODI)评分。结果两组患者术前VAS评分差异无统计学意义(P>0.05),术后VAS评分均较术前下降(P<0.05),观察组患者术后1、24、72 h的VAS评分较对照组下降(P<0.05);两组患者术前JOA评分差异无统计学意义(9.34±0.33 vs 9.23±0.43,P>0.05),术后JOA评分均较术前升高(P<0.05),术后6月观察组患者的JOA评分高于对照组(15.54±0.52 vs 14.23±0.43,P<0.05);两组患者术前ODI评分差异无统计学意义(15.43±3.54 vs 15.74±3.34,P>0.05),术后1月、6月两组ODI评分较术前升高(P<0.05),术后6月观察组患者ODI评分高于对照组(51.43±3.73 vs 48.75±3.64,P<0.05)。两组患者术前血清HMGB1、IL-6水平差异无统计学意义(4.43±0.54 vs 4.41±0.65、44.74±4.25 vs 45.54±4.54,P>0.05),术后1月、6月两组患者较术前均有升高(P<0.05),且观察组患者术后6月均较对照组降低(5.4±0.54 vs 6.54±0.32、46.85±4.45 vs 52.63±4.41,P<0.05)。结论UBE手术较后路切开髓核摘除椎弓根内固定椎间融合术更能有效降低LDH患者的疼痛程度,改善患者腰椎稳定性,值得临床推广。展开更多
The work condition of nuclear power plant (NPP) is very bad, which makes ithas faults easily. In order to diagnose (he faults real time, the fusion diagnosis system is built.The data fusion fault diagnosis system adop...The work condition of nuclear power plant (NPP) is very bad, which makes ithas faults easily. In order to diagnose (he faults real time, the fusion diagnosis system is built.The data fusion fault diagnosis system adopts data fusion method and divides the fault diagnosisinto three levels, which are data fusion level, feature level and decision level. The feature leveluses three parallel neural networks whose structures are the same. The purpose of using neuralnetworks is mainly to get basic probability assignment ( BPA) of D-S evidence theory, and the neuralnetworks in feature level are used for local diagnosis. D-S evidence theory is adopted to integratethe local diagnosis results in decision level. The reactor coolant system is the study object andwe choose 2# steam generator U-tubes break of the reactor coolant system as a diagnostic example.The experiments prove that the fusion diagnosis system can satisfy the fault diagnosis requirementof complicated system, and verify that the fusion fault diagnosis system can realize the faultdiagnosis of NPP on line timely.展开更多
Objective.To study the therapeutic T cell vaccine for the treatment of chronic hepatitis B by improving the cellular immunization of HBsAg vaccine with the coexpression of the preS1(1-42)and the Core(1-144)anti-gen of...Objective.To study the therapeutic T cell vaccine for the treatment of chronic hepatitis B by improving the cellular immunization of HBsAg vaccine with the coexpression of the preS1(1-42)and the Core(1-144)anti-gen of HBV in E.coli.Methods.The genes of HBcAg (1-144)and preS1(1-42)were amplified and fused by PCR.This fused gene was inserted in the prokaryotic expression vector pET-11d and expre ssed in E.coli.Results.It was showed by SDS-PAGE that the pr otein molecular weight of the coexpr ession product was about 20kD,20%of all bacteria prote in.The monoclonal antibodies again st core and preS1antibody could re-act with this fused protein by Western-blot technique respectively.The fused gene was verified by sequencin g.Under the immune electron microscop y,this fused protein is typical particles of HBcAg but in an aggregated form.Conclusion.The results might aid for studying T c ell immunotherapeutic vaccine for c hronic hepatitis B.展开更多
Objective:To reconstruct pEGFP-C2-L539fs/47,a HERG nonsense mutant in eukaryotic expression plasmid,and observe the fusion protein expressed in HEK293 cells(human embryo kidney cells).Methods:After double digestion of...Objective:To reconstruct pEGFP-C2-L539fs/47,a HERG nonsense mutant in eukaryotic expression plasmid,and observe the fusion protein expressed in HEK293 cells(human embryo kidney cells).Methods:After double digestion of pcDNA3-L539fs/47 and pEGFP-C2-HERG with sbf I and Eco91 I,the small product fragment,from pcDNA3-L539fs/47,was subcloned into the big fragment of pEGFP-C2-HERG under T4 ligase.pEGFP-C2-L539fs/47 was identified by agarose gel electrophoresis and sequencing.pcDNA3-L539fs/47 and pEGFP-C2-L539fs/47 were transiently transfected into HEK293 cells by Lipofect,respectively.The expression of fusion protein in HEK293 cells was detected through immunofluorescence,laser confocal imaging scanning in vivo,Western blot and PCR.Results:Mutation region cDNA fragment(about 1 kb) and target vector fragment(about 7.2 kb) were ligated after purification and gel recovery.Agarose gel electrophoresis and sequencing successfully demonstrated eukaryotic expression plasmid pEGFP-C2-L539fs/47,constructed approximately 8.2 kb,sequencing consistent with template gene.The transfection efficiency of recombinant plasmid by fluorescence microscopy was more than60%.Western blot analysis detected pcDNA3-L539fs/47 expression of the protein size 60 KD,the expression of pEGFP-C2 fusion protein size of approximately 90 KD.The L539fs/47 gene expression in HEK293 cells was significant by PCR analysis.Confocal laser imaging showed that pEGFP-C2-L539fs/47 protein was successfully expressed in cytoplasm and cytomembrane of HEK293 cells.Conclusion:pEGFP-C2-L539fs/47 containing the HERG gene mutant was successfully constructed by double digestion method and expressed fusion protein in HEK293 cells,which laid a foundation for the further study on L539fs/47.展开更多
文摘目的探究并分析单侧双通道内镜技术(UBE)在腰椎间盘突出(LDH)患者的治疗效果及其对日本骨科学会(JOA)评分的影响。方法选取2020年10月~2021年12月收治的69例LDH患者,按照随机数字表法将其分为观察组(n=34)和对照组(n=35)。对照组采用后路切开髓核摘除椎弓根内固定椎间融合治疗治疗,观察组采用UBE进行治疗。观察两组患者一般资料(年龄、性别、病变区域、手术的时间、病程、出血量等)、手术前后评分即视觉模拟评分(VAS)、JOA评分、腰痛Oswestry功能障碍指数(ODI)评分。结果两组患者术前VAS评分差异无统计学意义(P>0.05),术后VAS评分均较术前下降(P<0.05),观察组患者术后1、24、72 h的VAS评分较对照组下降(P<0.05);两组患者术前JOA评分差异无统计学意义(9.34±0.33 vs 9.23±0.43,P>0.05),术后JOA评分均较术前升高(P<0.05),术后6月观察组患者的JOA评分高于对照组(15.54±0.52 vs 14.23±0.43,P<0.05);两组患者术前ODI评分差异无统计学意义(15.43±3.54 vs 15.74±3.34,P>0.05),术后1月、6月两组ODI评分较术前升高(P<0.05),术后6月观察组患者ODI评分高于对照组(51.43±3.73 vs 48.75±3.64,P<0.05)。两组患者术前血清HMGB1、IL-6水平差异无统计学意义(4.43±0.54 vs 4.41±0.65、44.74±4.25 vs 45.54±4.54,P>0.05),术后1月、6月两组患者较术前均有升高(P<0.05),且观察组患者术后6月均较对照组降低(5.4±0.54 vs 6.54±0.32、46.85±4.45 vs 52.63±4.41,P<0.05)。结论UBE手术较后路切开髓核摘除椎弓根内固定椎间融合术更能有效降低LDH患者的疼痛程度,改善患者腰椎稳定性,值得临床推广。
文摘The work condition of nuclear power plant (NPP) is very bad, which makes ithas faults easily. In order to diagnose (he faults real time, the fusion diagnosis system is built.The data fusion fault diagnosis system adopts data fusion method and divides the fault diagnosisinto three levels, which are data fusion level, feature level and decision level. The feature leveluses three parallel neural networks whose structures are the same. The purpose of using neuralnetworks is mainly to get basic probability assignment ( BPA) of D-S evidence theory, and the neuralnetworks in feature level are used for local diagnosis. D-S evidence theory is adopted to integratethe local diagnosis results in decision level. The reactor coolant system is the study object andwe choose 2# steam generator U-tubes break of the reactor coolant system as a diagnostic example.The experiments prove that the fusion diagnosis system can satisfy the fault diagnosis requirementof complicated system, and verify that the fusion fault diagnosis system can realize the faultdiagnosis of NPP on line timely.
文摘Objective.To study the therapeutic T cell vaccine for the treatment of chronic hepatitis B by improving the cellular immunization of HBsAg vaccine with the coexpression of the preS1(1-42)and the Core(1-144)anti-gen of HBV in E.coli.Methods.The genes of HBcAg (1-144)and preS1(1-42)were amplified and fused by PCR.This fused gene was inserted in the prokaryotic expression vector pET-11d and expre ssed in E.coli.Results.It was showed by SDS-PAGE that the pr otein molecular weight of the coexpr ession product was about 20kD,20%of all bacteria prote in.The monoclonal antibodies again st core and preS1antibody could re-act with this fused protein by Western-blot technique respectively.The fused gene was verified by sequencin g.Under the immune electron microscop y,this fused protein is typical particles of HBcAg but in an aggregated form.Conclusion.The results might aid for studying T c ell immunotherapeutic vaccine for c hronic hepatitis B.
基金Supported by the National Natural Science Foundation of China (No. 30800473)
文摘Objective:To reconstruct pEGFP-C2-L539fs/47,a HERG nonsense mutant in eukaryotic expression plasmid,and observe the fusion protein expressed in HEK293 cells(human embryo kidney cells).Methods:After double digestion of pcDNA3-L539fs/47 and pEGFP-C2-HERG with sbf I and Eco91 I,the small product fragment,from pcDNA3-L539fs/47,was subcloned into the big fragment of pEGFP-C2-HERG under T4 ligase.pEGFP-C2-L539fs/47 was identified by agarose gel electrophoresis and sequencing.pcDNA3-L539fs/47 and pEGFP-C2-L539fs/47 were transiently transfected into HEK293 cells by Lipofect,respectively.The expression of fusion protein in HEK293 cells was detected through immunofluorescence,laser confocal imaging scanning in vivo,Western blot and PCR.Results:Mutation region cDNA fragment(about 1 kb) and target vector fragment(about 7.2 kb) were ligated after purification and gel recovery.Agarose gel electrophoresis and sequencing successfully demonstrated eukaryotic expression plasmid pEGFP-C2-L539fs/47,constructed approximately 8.2 kb,sequencing consistent with template gene.The transfection efficiency of recombinant plasmid by fluorescence microscopy was more than60%.Western blot analysis detected pcDNA3-L539fs/47 expression of the protein size 60 KD,the expression of pEGFP-C2 fusion protein size of approximately 90 KD.The L539fs/47 gene expression in HEK293 cells was significant by PCR analysis.Confocal laser imaging showed that pEGFP-C2-L539fs/47 protein was successfully expressed in cytoplasm and cytomembrane of HEK293 cells.Conclusion:pEGFP-C2-L539fs/47 containing the HERG gene mutant was successfully constructed by double digestion method and expressed fusion protein in HEK293 cells,which laid a foundation for the further study on L539fs/47.
