目的:通过Meta分析对比单通道内镜及单侧双通道内镜(UBE)在治疗腰椎管狭窄症的临床疗效。方法:检索PubMed、Cochrane Library、Embase和Web of Science等数据库(从建库到2023年10月)对单通道内镜和单侧双通道内镜治疗腰椎管狭窄症疗效...目的:通过Meta分析对比单通道内镜及单侧双通道内镜(UBE)在治疗腰椎管狭窄症的临床疗效。方法:检索PubMed、Cochrane Library、Embase和Web of Science等数据库(从建库到2023年10月)对单通道内镜和单侧双通道内镜治疗腰椎管狭窄症疗效的临床研究进行检索。提取纳入研究的结局指标,包括:腰部和腿部疼痛的VAS评分、术后ODI评分、手术时间、住院天数、并发症发生率、手术优良率。使用Revman 5.3软件对数据进行统计学分析,单个率采用优势比(odds ratios, OR),连续性变量采用加权平均差异(weighted mean difference, WMD),并给出可信区间(confidence interval, CI)为95%。结果:总共有6项研究,515名患者被纳入该Meta分析。UBE手术相对于单通道内镜有着更短的手术时间(WMD −12.37, 95%CI −22.15~−2.6, P = 0.01)。两组患者在腰痛VAS评分[术后第一天(WMD 0.27, 95%CI −0.29~0.82, P = 0.35)、末次随访(WMD −0.02, 95%CI −0.1~0.06, P = 0.63)]、腿痛VAS评分[术后第一天(WMD −0.17, 95%CI −0.43~0.09, P = 0.20)、末次随访(WMD 0.03, 95%CI −0.15~0.15, P = 0.51)、ODI评分(WMD −0.1, 95%CI −0.67~0.47, P = 0.73)、并发症(OR 0.72, 95%CI 0.37~1.41, P = 0.34)、住院天数(WMD −0.06, 95%CI −0.27~0.15, P = 0.56)、手术优良率(OR 1.32, 95%CI 0.69~2.53, P = 0.56)等方面均无明显差异。结论:UBE和单通道内镜治疗腰椎管狭窄症的临床疗效和并发症发生率无明显差异。而UBE与单通道内镜组相比有着更短的手术时间。Objective: To compare the clinical efficacy of uniportal endoscoppic and biportal endoscopic (UBE) decompression for the treatment of lumbar spinal stenosis through meta-analysis. Methods: PubMed, Cochrane Library, Embase and Web of Science databases were searched (from the establishment of the database to October 2023) to compare the clinical studies on the clinical efficacy of uniportal and biportal endoscopy in the treatment of lumbar spinal stenosis. The outcome indicators included in the study were extracted, including VAS score of lumbar and leg pain, postoperative ODI score, operation time, length of hospital stay, complication rate, and surgical excellence rate. Statistical analysis was performed using Revman 5.3 software. A fixed or random effects model was used with odds ratios (OR) for single rate and weighted mean difference (WMD) for continuous variables, and confidence intervals CI was 95%. Results: A total of 6 studies with 515 patients were included in this meta-analysis. Compared with uniportal endoscopy, UBE surgery had a shorter operation time (WMD −12.37, 95%CI −22.15~2.6, P = 0.01). There was no significant difference between groups in VAS scores for low back pain (first day after surgery (WMD 0.27, 95%CI 0.29~0.82, P = 0.35), final follow-up (WMD −0.02, 95%CI 0.1~0.06, P = 0.63), and leg pain first day after surgery (WMD −0.17, 95%CI −0.43~0.09, P = 0.20), final follow-up (WMD 0.03, 95%CI −0.15~0.15, P = 0.51), ODI score (WMD −0.1, 95%CI −0.67~0.47, P = 0.73), complications (OR 0.72, 95%CI 0.37~1.41, P = 0.34), length of hospital stay (WMD −0.06, 95%CI 0.27~0.15, P = 0.56), and rate of excellent operation (OR 1.32, 95%CI 0.69~2.53, P = 0.56). Conclusion: There is no significant difference in clinical efficacy and complication rate between UBE and single channel endoscopy in the treatment of lumbar stenosis. Compared with the single channel endoscopic group, UBE has a shorter operation time.展开更多
Objective To screen the target gene UBE2C and explore its prognostic value and immune correlation in breast cancer(BRCA)using multiple databases..Methods The microarray expression datasets of BRCA were downloaded from...Objective To screen the target gene UBE2C and explore its prognostic value and immune correlation in breast cancer(BRCA)using multiple databases..Methods The microarray expression datasets of BRCA were downloaded from the Gene Expresssion Omnibus database(GEO)and analyzed to obtain differentially expressed genes(DEGs).Hub genes were obtained by constructing and visualizing the protein-protein interaction network of DEGs.Then the key gene UBE2C was determined using R language,STRING,and Cytoscape,and the differential expression of UBE2C was verified using the external datasets,The Cancer Genome Atlas(TCGA),and quantitative real-time PCR(qRT-PCR).The prognostic value and immunological correlation of UBE2C in BRCA were explored using R language,TIMER,and Gene Set Enrichment Analysis(GSEA).Results The expression of UBE2C was differentially upregulated in BRCA,as verified by TCGA and qRT-PCR.Prognostic analysis revealed that UBE2C served as an independent prognostic factor.High expression of UBE2C was associated with decreased immune infiltration levels of B cells,CD4+T cells,CD8+T cells,macrophages,and myeloid dendritic cells in BRCA tissue.The expression of UBE2C in BRCA showed a significant correlation with PDCD1,CD274,and CTLA4 expressions.There was a positive correlation between the expression of UBE2C and the tumor mutational burden and microsatellite instability.GSEA demonstrated that UBE2C expression significantly enriched 786 immune-related gene sets.Conclusions UBE2C expression in BRCA tissues can predict the survivals and prognosis of BRCA patients.Also,it is closely related to the BRCA immune microenvironment and can predict the effecacy of immunotherapy in BRCA patients.Therefore,UBE2C may be an potential immune-related prognostic biomarker for BRCA.展开更多
Objectives:This study aimed to reveal the role and possible mechanism of the ubiquitin-conjugating enzyme 2T(UBE2T)in the biological activities of breast cancer stem cells(BCSCs).Methods:The specific protein and gene ...Objectives:This study aimed to reveal the role and possible mechanism of the ubiquitin-conjugating enzyme 2T(UBE2T)in the biological activities of breast cancer stem cells(BCSCs).Methods:The specific protein and gene expression were quantified by Western blotting and quantitative real-time polymerase chain reaction,the proportion of BCSCs was examined by flow cytometry,and the self-renewal and proliferation of BCSCs were verified by serial sphere formation and soft agar.Results:Increasing expression of UBE2T was drastically found in breast cancer than that in adjacent tissues.Furthermore,UBE2T overexpression significantly increased the proportion of BCSCs in breast cancer cells and promoted their self-renewal and proliferation.Silent UBE2T exhibited the opposite functions.UBE2T increased the levels of the mammalian target of rapamycin and the phosphorylated mammalian target of rapamycin.Mammalian target of rapamycin(mTOR)inhibitor rapamycin inhibited the function of UBE2T in BCSCs.Conclusion:UBE2T plays a role in BCSCs through mTOR pathway and may suggest a novel therapeutic strategy for breast cancer.展开更多
An exact forecast of the failures of a sucker rod-pumped well in a production area means much for an oilfield’s operation budget, operational arrangement and production plan. In this paper, according to the characte...An exact forecast of the failures of a sucker rod-pumped well in a production area means much for an oilfield’s operation budget, operational arrangement and production plan. In this paper, according to the characteristics of failed sucker rod-pumped well randomness and strong outburst, with the gray GM (1,1) forecast model and the Markov forecast model combined, gray GM (1,1) forecast model is utilized to handle the primary data of an oilfield, and Markov forecast model is utilized to calculate the state transfer probability of forecast value. Then, the gray Markov forecast model considering the influence of randomness factors is formed. Field results prove that the calculation precision of this method is higher and the practicability is greater.展开更多
文摘目的:通过Meta分析对比单通道内镜及单侧双通道内镜(UBE)在治疗腰椎管狭窄症的临床疗效。方法:检索PubMed、Cochrane Library、Embase和Web of Science等数据库(从建库到2023年10月)对单通道内镜和单侧双通道内镜治疗腰椎管狭窄症疗效的临床研究进行检索。提取纳入研究的结局指标,包括:腰部和腿部疼痛的VAS评分、术后ODI评分、手术时间、住院天数、并发症发生率、手术优良率。使用Revman 5.3软件对数据进行统计学分析,单个率采用优势比(odds ratios, OR),连续性变量采用加权平均差异(weighted mean difference, WMD),并给出可信区间(confidence interval, CI)为95%。结果:总共有6项研究,515名患者被纳入该Meta分析。UBE手术相对于单通道内镜有着更短的手术时间(WMD −12.37, 95%CI −22.15~−2.6, P = 0.01)。两组患者在腰痛VAS评分[术后第一天(WMD 0.27, 95%CI −0.29~0.82, P = 0.35)、末次随访(WMD −0.02, 95%CI −0.1~0.06, P = 0.63)]、腿痛VAS评分[术后第一天(WMD −0.17, 95%CI −0.43~0.09, P = 0.20)、末次随访(WMD 0.03, 95%CI −0.15~0.15, P = 0.51)、ODI评分(WMD −0.1, 95%CI −0.67~0.47, P = 0.73)、并发症(OR 0.72, 95%CI 0.37~1.41, P = 0.34)、住院天数(WMD −0.06, 95%CI −0.27~0.15, P = 0.56)、手术优良率(OR 1.32, 95%CI 0.69~2.53, P = 0.56)等方面均无明显差异。结论:UBE和单通道内镜治疗腰椎管狭窄症的临床疗效和并发症发生率无明显差异。而UBE与单通道内镜组相比有着更短的手术时间。Objective: To compare the clinical efficacy of uniportal endoscoppic and biportal endoscopic (UBE) decompression for the treatment of lumbar spinal stenosis through meta-analysis. Methods: PubMed, Cochrane Library, Embase and Web of Science databases were searched (from the establishment of the database to October 2023) to compare the clinical studies on the clinical efficacy of uniportal and biportal endoscopy in the treatment of lumbar spinal stenosis. The outcome indicators included in the study were extracted, including VAS score of lumbar and leg pain, postoperative ODI score, operation time, length of hospital stay, complication rate, and surgical excellence rate. Statistical analysis was performed using Revman 5.3 software. A fixed or random effects model was used with odds ratios (OR) for single rate and weighted mean difference (WMD) for continuous variables, and confidence intervals CI was 95%. Results: A total of 6 studies with 515 patients were included in this meta-analysis. Compared with uniportal endoscopy, UBE surgery had a shorter operation time (WMD −12.37, 95%CI −22.15~2.6, P = 0.01). There was no significant difference between groups in VAS scores for low back pain (first day after surgery (WMD 0.27, 95%CI 0.29~0.82, P = 0.35), final follow-up (WMD −0.02, 95%CI 0.1~0.06, P = 0.63), and leg pain first day after surgery (WMD −0.17, 95%CI −0.43~0.09, P = 0.20), final follow-up (WMD 0.03, 95%CI −0.15~0.15, P = 0.51), ODI score (WMD −0.1, 95%CI −0.67~0.47, P = 0.73), complications (OR 0.72, 95%CI 0.37~1.41, P = 0.34), length of hospital stay (WMD −0.06, 95%CI 0.27~0.15, P = 0.56), and rate of excellent operation (OR 1.32, 95%CI 0.69~2.53, P = 0.56). Conclusion: There is no significant difference in clinical efficacy and complication rate between UBE and single channel endoscopy in the treatment of lumbar stenosis. Compared with the single channel endoscopic group, UBE has a shorter operation time.
文摘Objective To screen the target gene UBE2C and explore its prognostic value and immune correlation in breast cancer(BRCA)using multiple databases..Methods The microarray expression datasets of BRCA were downloaded from the Gene Expresssion Omnibus database(GEO)and analyzed to obtain differentially expressed genes(DEGs).Hub genes were obtained by constructing and visualizing the protein-protein interaction network of DEGs.Then the key gene UBE2C was determined using R language,STRING,and Cytoscape,and the differential expression of UBE2C was verified using the external datasets,The Cancer Genome Atlas(TCGA),and quantitative real-time PCR(qRT-PCR).The prognostic value and immunological correlation of UBE2C in BRCA were explored using R language,TIMER,and Gene Set Enrichment Analysis(GSEA).Results The expression of UBE2C was differentially upregulated in BRCA,as verified by TCGA and qRT-PCR.Prognostic analysis revealed that UBE2C served as an independent prognostic factor.High expression of UBE2C was associated with decreased immune infiltration levels of B cells,CD4+T cells,CD8+T cells,macrophages,and myeloid dendritic cells in BRCA tissue.The expression of UBE2C in BRCA showed a significant correlation with PDCD1,CD274,and CTLA4 expressions.There was a positive correlation between the expression of UBE2C and the tumor mutational burden and microsatellite instability.GSEA demonstrated that UBE2C expression significantly enriched 786 immune-related gene sets.Conclusions UBE2C expression in BRCA tissues can predict the survivals and prognosis of BRCA patients.Also,it is closely related to the BRCA immune microenvironment and can predict the effecacy of immunotherapy in BRCA patients.Therefore,UBE2C may be an potential immune-related prognostic biomarker for BRCA.
基金This research was partly supported by the Fundamental Research Funds of Shandong University(21510078614097)the Shandong Natural Science Foundation General Project(ZR2022MC093).
文摘Objectives:This study aimed to reveal the role and possible mechanism of the ubiquitin-conjugating enzyme 2T(UBE2T)in the biological activities of breast cancer stem cells(BCSCs).Methods:The specific protein and gene expression were quantified by Western blotting and quantitative real-time polymerase chain reaction,the proportion of BCSCs was examined by flow cytometry,and the self-renewal and proliferation of BCSCs were verified by serial sphere formation and soft agar.Results:Increasing expression of UBE2T was drastically found in breast cancer than that in adjacent tissues.Furthermore,UBE2T overexpression significantly increased the proportion of BCSCs in breast cancer cells and promoted their self-renewal and proliferation.Silent UBE2T exhibited the opposite functions.UBE2T increased the levels of the mammalian target of rapamycin and the phosphorylated mammalian target of rapamycin.Mammalian target of rapamycin(mTOR)inhibitor rapamycin inhibited the function of UBE2T in BCSCs.Conclusion:UBE2T plays a role in BCSCs through mTOR pathway and may suggest a novel therapeutic strategy for breast cancer.
文摘An exact forecast of the failures of a sucker rod-pumped well in a production area means much for an oilfield’s operation budget, operational arrangement and production plan. In this paper, according to the characteristics of failed sucker rod-pumped well randomness and strong outburst, with the gray GM (1,1) forecast model and the Markov forecast model combined, gray GM (1,1) forecast model is utilized to handle the primary data of an oilfield, and Markov forecast model is utilized to calculate the state transfer probability of forecast value. Then, the gray Markov forecast model considering the influence of randomness factors is formed. Field results prove that the calculation precision of this method is higher and the practicability is greater.
