Indoles and their derivatives are an important class of N-heterocycles.In this article,iridium-catalyzed annulation reactions of N-aryl-2-aminopyridines to synthesize indole derivatives are designed and developed,whic...Indoles and their derivatives are an important class of N-heterocycles.In this article,iridium-catalyzed annulation reactions of N-aryl-2-aminopyridines to synthesize indole derivatives are designed and developed,which utilize vinylene carbonate as a new C2 synthon.This protocol is expected to provide a facile and useful access to various indole derivatives.展开更多
The paper utilized a standardized methodology to identify prognostic biomarkers in hepatocellular carcinoma(HCC)by analyzing transcriptomic and clinical data from The Cancer Genome Atlas(TCGA)database.The approach,whi...The paper utilized a standardized methodology to identify prognostic biomarkers in hepatocellular carcinoma(HCC)by analyzing transcriptomic and clinical data from The Cancer Genome Atlas(TCGA)database.The approach,which included stringent data preprocessing,differential gene expression analysis,and Kaplan-Meier survival analysis,provided valuable insights into the genetic underpinnings of HCC.The comprehensive analysis of a dataset involving 370 HCC patients uncovered correlations between survival status and pathological characteristics,including tumor size,lymph node involvement,and distant metastasis.The processed transcriptome dataset,comprising 420 samples and annotating 26,783 genes,served as a robust platform for identifying differential gene expression patterns.Among the significant differential expression genes,the key genes such as FBXO43,HAGLROS,CRISPLD1,LRRC3.DT,and ERN2,were pinpointed,which showed significant associations with patient survival outcomes,indicating their potential as novel prognostic biomarkers.This study can not only enhance the understanding of HCC’s genetic landscape but also establish a blueprint for a standardized process to discover prognostic biomarkers of various diseases using genetic big data.Future research should focus on validating these biomarkers through independent cohorts and exploring their utility in the development of personalized treatment strategies.展开更多
背景:近期研究表明,肠道菌群可能会影响肌萎缩侧索硬化症的发展进程,然而两者之间的因果关系尚不清楚。目的:利用孟德尔随机化方法探索肠道菌群与肌萎缩侧索硬化症之间的因果关系。方法:从IEU Open GWAS数据库(由英国布里斯托尔大学的...背景:近期研究表明,肠道菌群可能会影响肌萎缩侧索硬化症的发展进程,然而两者之间的因果关系尚不清楚。目的:利用孟德尔随机化方法探索肠道菌群与肌萎缩侧索硬化症之间的因果关系。方法:从IEU Open GWAS数据库(由英国布里斯托尔大学的英国医学研究委员会和遗传流行病学研究所开发,旨在提供与多种疾病相关的全基因组关联研究数据,为开放数据库)中分别获取肠道菌群和肌萎缩侧索硬化症的GWAS数据,以肠道菌群为暴露因素、肌萎缩侧索硬化症为结局变量,使用逆方差加权法、MR-Egger回归法、加权中位数法、加权模型法和简单模型法来探究两者之间的因果关系。使用敏感性分析检验孟德尔随机化结果的可靠性,使用反向孟德尔随机化分析进一步验证两者间的因果关系。结果与结论:(1)正向孟德尔随机化分析结果表明,6种肠道菌群与肌萎缩侧索硬化症之间存在因果关系,其中嗜胆菌属(β=0.206,OR=1.229)、毛螺菌属(β=0.288,OR=1.333)、马文-布莱恩特氏菌属(β=0.196,OR=1.216)、瘤胃球菌UCG010属(β=0.254,OR=1.289)和泰泽氏菌属3型(β=0.128,OR=1.136)可能是肌萎缩侧索硬化症的潜在危险因素,肠杆菌属(β=-0.203,OR=0.816)可能是肌萎缩侧索硬化症的保护因素;(2)在敏感性分析中,未发现显著的异质性和水平多效性(P均> 0.05),反向孟德尔随机化分析亦未揭示肠道菌群与肌萎缩侧索硬化症之间存在反向因果关系;(3)该研究结果不仅为肌萎缩侧索硬化症治疗提供了潜在的生物标志物,还为开发基于肠道菌群的新的干预治疗方案提供了理论依据,对中国基础医学研究具有一定的启示意义。展开更多
目的探讨胰腺导管内管状乳头状肿瘤(intraductal tubulopapillary neoplasm of the pancreas,ITPN)伴相关浸润性癌的病理形态、免疫表型、基因特征及鉴别诊断。方法回顾性分析江苏省人民医院病理学部2015~2022年确诊的5例ITPN伴有相关...目的探讨胰腺导管内管状乳头状肿瘤(intraductal tubulopapillary neoplasm of the pancreas,ITPN)伴相关浸润性癌的病理形态、免疫表型、基因特征及鉴别诊断。方法回顾性分析江苏省人民医院病理学部2015~2022年确诊的5例ITPN伴有相关浸润性癌,总结其临床及影像学资料、组织病理学、特殊染色、免疫组化特征及分子遗传学改变。结果5例患者中男性3例,女性2例;平均年龄63.2岁;临床症状表现为不同程度的上腹部疼痛、黄疸等。影像提示肿瘤位于胰头部(3例)、壶腹部周围(1例)及全胰(1例),均显示管内实性生长,伴有胰管不同程度扩张;组织学显示肿瘤呈管状生长模式,表现为背靠背密集的腺管结构,缺乏或少见乳头状结构,某些区域呈实性片状生长,巢团中央常见坏死;瘤细胞立方形,异型性明显,核分裂象易见,罕见黏液分化;本组5例均伴有相关浸润性癌,4例为导管腺癌,1例伴有罕见的肉瘤样癌成分。弹力纤维染色示明确浸润区域周围弹力纤维完全缺失;轮廓尚清区域周围弹力纤维部分存在。免疫组织化学显示肿瘤细胞不同程度表达CK7、CK19、MUC1、MUC6,不表达MUC5AC、MUC2、CgA、Syn、胰蛋白酶、糜蛋白酶、脂肪酶、BCL10。我们选取其中3例(1例T1a期,1例T1b期,1例T2期)行KRAS、TP53、FGFR2、HER2及PIK3CA基因检测,结果显示其中1例TP53基因8号外显子框内插入突变,随后对该病例行NGS检测,显示其还存在BRAF、BAP1、FOXO1、PIK3CG等多个基因突变。随访2例死亡,3例尚生存。结论ITPN是一种相对少见的胰腺导管内肿瘤亚型,可伴有相关浸润性癌成分。其具有独特的影像学表现及病理特征,特征性分子遗传学的改变可有望为肿瘤的治疗提供潜在靶点。展开更多
目的:观察多模式镇痛联合运动疗法对创伤性骨折术后持续性疼痛及康复进程的影响作用。方法:研究对象均来自于2023年2月至2025年2月期间于上犹县人民医院就诊的66例创伤性骨折患者,随机分成对照组与观察组,各33例,对照组采用常规的术后...目的:观察多模式镇痛联合运动疗法对创伤性骨折术后持续性疼痛及康复进程的影响作用。方法:研究对象均来自于2023年2月至2025年2月期间于上犹县人民医院就诊的66例创伤性骨折患者,随机分成对照组与观察组,各33例,对照组采用常规的术后镇痛管理与运动疗法,观察组采用多模式镇痛联合运动疗法,观察比较两组患者的疼痛程度、运动功能恢复情况、康复情况以及不良反应发生率。结果:术后两组视觉模拟评分(Visual analog scale,VAS)均有下降,各时间点观察组VAS评分较对照组更低(P<0.05)。干预后两组运动评估量表(Motor Assessment Scale,MAS)评分均有显著升高,观察组MAS评分较对照组更高(P<0.05)。相比于对照组,观察组的下床时间与住院时间更短(P<0.05)。两组不良反应发生率无显著差异。结论:对创伤性骨折患者采用多模式镇痛联合运动疗法能有效缓解患者术后的持续性疼痛,加快患者康复进程与运动功能的恢复,且应用较为安全,是值得推荐的术后干预护理方式。展开更多
Environmental DNA(eDNA)technology has revolutionized biodiversity monitoring with its non-invasive,sensitive,and cost-efficient approach.This paper systematically reviews eDNA advancements,examining its applications i...Environmental DNA(eDNA)technology has revolutionized biodiversity monitoring with its non-invasive,sensitive,and cost-efficient approach.This paper systematically reviews eDNA advancements,examining its applications in aquatic and terrestrial ecosystems and assessing China’s standardization progress.It delineates four developmental phases from single-species detection to high-throughput sequencing,and highlights China’s contribution to the development of technical standards.While significant progress has been made,challenges persist in quantitative accuracy,methodological consistency,and large-scale implementation.Future efforts should prioritize enhanced standardization,improved quantification techniques,broader applications,and international collaboration to drive innovation in eDNA technology.展开更多
文摘Indoles and their derivatives are an important class of N-heterocycles.In this article,iridium-catalyzed annulation reactions of N-aryl-2-aminopyridines to synthesize indole derivatives are designed and developed,which utilize vinylene carbonate as a new C2 synthon.This protocol is expected to provide a facile and useful access to various indole derivatives.
基金the 2023 Inner Mongolia Public Institution High-Level Talent Introduction Scientific Research Support Project with the start-up funding from Linyi Vocational College。
文摘The paper utilized a standardized methodology to identify prognostic biomarkers in hepatocellular carcinoma(HCC)by analyzing transcriptomic and clinical data from The Cancer Genome Atlas(TCGA)database.The approach,which included stringent data preprocessing,differential gene expression analysis,and Kaplan-Meier survival analysis,provided valuable insights into the genetic underpinnings of HCC.The comprehensive analysis of a dataset involving 370 HCC patients uncovered correlations between survival status and pathological characteristics,including tumor size,lymph node involvement,and distant metastasis.The processed transcriptome dataset,comprising 420 samples and annotating 26,783 genes,served as a robust platform for identifying differential gene expression patterns.Among the significant differential expression genes,the key genes such as FBXO43,HAGLROS,CRISPLD1,LRRC3.DT,and ERN2,were pinpointed,which showed significant associations with patient survival outcomes,indicating their potential as novel prognostic biomarkers.This study can not only enhance the understanding of HCC’s genetic landscape but also establish a blueprint for a standardized process to discover prognostic biomarkers of various diseases using genetic big data.Future research should focus on validating these biomarkers through independent cohorts and exploring their utility in the development of personalized treatment strategies.
文摘背景:近期研究表明,肠道菌群可能会影响肌萎缩侧索硬化症的发展进程,然而两者之间的因果关系尚不清楚。目的:利用孟德尔随机化方法探索肠道菌群与肌萎缩侧索硬化症之间的因果关系。方法:从IEU Open GWAS数据库(由英国布里斯托尔大学的英国医学研究委员会和遗传流行病学研究所开发,旨在提供与多种疾病相关的全基因组关联研究数据,为开放数据库)中分别获取肠道菌群和肌萎缩侧索硬化症的GWAS数据,以肠道菌群为暴露因素、肌萎缩侧索硬化症为结局变量,使用逆方差加权法、MR-Egger回归法、加权中位数法、加权模型法和简单模型法来探究两者之间的因果关系。使用敏感性分析检验孟德尔随机化结果的可靠性,使用反向孟德尔随机化分析进一步验证两者间的因果关系。结果与结论:(1)正向孟德尔随机化分析结果表明,6种肠道菌群与肌萎缩侧索硬化症之间存在因果关系,其中嗜胆菌属(β=0.206,OR=1.229)、毛螺菌属(β=0.288,OR=1.333)、马文-布莱恩特氏菌属(β=0.196,OR=1.216)、瘤胃球菌UCG010属(β=0.254,OR=1.289)和泰泽氏菌属3型(β=0.128,OR=1.136)可能是肌萎缩侧索硬化症的潜在危险因素,肠杆菌属(β=-0.203,OR=0.816)可能是肌萎缩侧索硬化症的保护因素;(2)在敏感性分析中,未发现显著的异质性和水平多效性(P均> 0.05),反向孟德尔随机化分析亦未揭示肠道菌群与肌萎缩侧索硬化症之间存在反向因果关系;(3)该研究结果不仅为肌萎缩侧索硬化症治疗提供了潜在的生物标志物,还为开发基于肠道菌群的新的干预治疗方案提供了理论依据,对中国基础医学研究具有一定的启示意义。
文摘目的探讨胰腺导管内管状乳头状肿瘤(intraductal tubulopapillary neoplasm of the pancreas,ITPN)伴相关浸润性癌的病理形态、免疫表型、基因特征及鉴别诊断。方法回顾性分析江苏省人民医院病理学部2015~2022年确诊的5例ITPN伴有相关浸润性癌,总结其临床及影像学资料、组织病理学、特殊染色、免疫组化特征及分子遗传学改变。结果5例患者中男性3例,女性2例;平均年龄63.2岁;临床症状表现为不同程度的上腹部疼痛、黄疸等。影像提示肿瘤位于胰头部(3例)、壶腹部周围(1例)及全胰(1例),均显示管内实性生长,伴有胰管不同程度扩张;组织学显示肿瘤呈管状生长模式,表现为背靠背密集的腺管结构,缺乏或少见乳头状结构,某些区域呈实性片状生长,巢团中央常见坏死;瘤细胞立方形,异型性明显,核分裂象易见,罕见黏液分化;本组5例均伴有相关浸润性癌,4例为导管腺癌,1例伴有罕见的肉瘤样癌成分。弹力纤维染色示明确浸润区域周围弹力纤维完全缺失;轮廓尚清区域周围弹力纤维部分存在。免疫组织化学显示肿瘤细胞不同程度表达CK7、CK19、MUC1、MUC6,不表达MUC5AC、MUC2、CgA、Syn、胰蛋白酶、糜蛋白酶、脂肪酶、BCL10。我们选取其中3例(1例T1a期,1例T1b期,1例T2期)行KRAS、TP53、FGFR2、HER2及PIK3CA基因检测,结果显示其中1例TP53基因8号外显子框内插入突变,随后对该病例行NGS检测,显示其还存在BRAF、BAP1、FOXO1、PIK3CG等多个基因突变。随访2例死亡,3例尚生存。结论ITPN是一种相对少见的胰腺导管内肿瘤亚型,可伴有相关浸润性癌成分。其具有独特的影像学表现及病理特征,特征性分子遗传学的改变可有望为肿瘤的治疗提供潜在靶点。
文摘目的:观察多模式镇痛联合运动疗法对创伤性骨折术后持续性疼痛及康复进程的影响作用。方法:研究对象均来自于2023年2月至2025年2月期间于上犹县人民医院就诊的66例创伤性骨折患者,随机分成对照组与观察组,各33例,对照组采用常规的术后镇痛管理与运动疗法,观察组采用多模式镇痛联合运动疗法,观察比较两组患者的疼痛程度、运动功能恢复情况、康复情况以及不良反应发生率。结果:术后两组视觉模拟评分(Visual analog scale,VAS)均有下降,各时间点观察组VAS评分较对照组更低(P<0.05)。干预后两组运动评估量表(Motor Assessment Scale,MAS)评分均有显著升高,观察组MAS评分较对照组更高(P<0.05)。相比于对照组,观察组的下床时间与住院时间更短(P<0.05)。两组不良反应发生率无显著差异。结论:对创伤性骨折患者采用多模式镇痛联合运动疗法能有效缓解患者术后的持续性疼痛,加快患者康复进程与运动功能的恢复,且应用较为安全,是值得推荐的术后干预护理方式。
基金supported by the National Natural Science Foundation of China(Grant No.32160172)the Key Science-Technology Project of Inner Mongolia(2023KYPT0010)+1 种基金the Natural Science Foundation of Inner Mongolia Autonomous Region of China(Grant No.2025QN03006)the 2023 Inner Mongolia Public Institution High-Level Talent Introduction Scientific Research Support Project.
文摘Environmental DNA(eDNA)technology has revolutionized biodiversity monitoring with its non-invasive,sensitive,and cost-efficient approach.This paper systematically reviews eDNA advancements,examining its applications in aquatic and terrestrial ecosystems and assessing China’s standardization progress.It delineates four developmental phases from single-species detection to high-throughput sequencing,and highlights China’s contribution to the development of technical standards.While significant progress has been made,challenges persist in quantitative accuracy,methodological consistency,and large-scale implementation.Future efforts should prioritize enhanced standardization,improved quantification techniques,broader applications,and international collaboration to drive innovation in eDNA technology.
