检索结果-南通市图书馆

1096例早期胃癌淋巴结转移危险因素分析及列线图预测模型的构建

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

中华胃肠外科杂志 2024年第7期27卷 711-717页

作者：周瑜凝姜文超高晓东汪学非孙益红复旦大学附属中山医院普通外科上海200032

目的:分析早期胃癌淋巴结转移的危险因素,并建立列线图预测模型。方法:采用回顾性观察性研究方法,收集2016年1月至2022年7月在复旦大学附属中山医院接受胃癌根治术联合标准D 1淋巴结清扫,且术后病理为早期胃癌患者的临床资料。根据有无... 详细信息

目的:分析早期胃癌淋巴结转移的危险因素,并建立列线图预测模型。方法:采用回顾性观察性研究方法,收集2016年1月至2022年7月在复旦大学附属中山医院接受胃癌根治术联合标准D 1淋巴结清扫,且术后病理为早期胃癌患者的临床资料。根据有无淋巴结转移将患者分为转移组与无转移组,比较两组患者临床病理特征,并将差异有统计学意义的数据纳入多因素logistic回归分析,进一步评估早期胃癌发生淋巴结转移的独立危险因素。按6∶4的比例将患者分为训练集和验证集。选取独立危险因素建立列线图预测模型,同时选取日本胃癌协会(JGCA)指南中内镜切除适应证的相关因素以相同方式建立模型,分别绘制受试者工作特征(ROC)曲线,通过曲线下面积(AUC)比较两者预测效能差异。结果:共纳入1 096例早期胃癌患者,男性750例,女性346例;年龄(61.4±10.9)岁;肿瘤长径(23.8±11.4)mm。其中淋巴结转移阳性患者188例(17.2%),N1、N2和N3期分别为109、42和37例,T1a和T1b期分别为462和634例。单因素分析显示,肿瘤长径、肿瘤位置、肿瘤Lauren分型、肿瘤大体形态、肿瘤组织学分型、有无脉管侵犯、有无溃疡、肿瘤分化类型和肿瘤T分期与早期胃癌根治术后淋巴结转移有关(均 P0.05)。基于以上变量所构建的早期胃癌淋巴结转移列线图预测模型在训练集和验证集验证所得的AUC值分别为0.880(95%CI:0.849~0.911)和0.881(95%CI:0.841~0.921),且明显优于基于JGCA指南内镜切除适应证的预测效能(AUC=0.777,95%CI:0.746~0.809, P<0.001)。结论:对于存在脉管侵犯,肿瘤未分化、T1b期和长径≥2 cm的早期胃癌患者,应警惕术后淋巴结转移风险;本研究构建的预测模型能够更有效地预测早期胃癌淋巴结转移。

关键词：胃肿瘤,早期淋巴结转移临床预测模型列线图

过表达海马LINGO-1对小鼠学习和记忆能力及海马各亚区Spinophilin+树突棘的影响

在线全文

学校读者我要写书评

暂无评论

陆军军医大学学报 2024年第2期46卷 118-127页

作者：王舜蒋林何琦杨浩王依滢周宇宁梁芯张毅晁凤蕾张蕾唐勇重庆医科大学基础医学院组织学与胚胎学教研室重庆400016

目的脑立体定位注射腺相关病毒特异性过表达海马LINGO-1,探讨其对小鼠空间学习和记忆能力以及海马各亚区体积和Spinophilin+树突棘的影响。方法将7月龄雄性C57小鼠按照简单随机法分为对照组和LINGO-1过表达组,对照组小鼠海马立体定位... 详细信息

目的脑立体定位注射腺相关病毒特异性过表达海马LINGO-1,探讨其对小鼠空间学习和记忆能力以及海马各亚区体积和Spinophilin+树突棘的影响。方法将7月龄雄性C57小鼠按照简单随机法分为对照组和LINGO-1过表达组,对照组小鼠海马立体定位注射携带绿色荧光的空载腺相关病毒(adeno-associated virus, AAV),LINGO-1过表达组小鼠海马立体定位注射同时携带绿色荧光和LINGO-1过表达载体的AAV。运用Morris水迷宫评估小鼠的空间学习和记忆能力,荧光定量PCR及免疫荧光染色方法分别检测小鼠海马内LINGO-1基因表达水平和各亚区荧光强度,体视学三维定量小鼠海马各亚区体积及Spinophilin+树突棘总数。结果对照组和LINGO-1过表达组病毒注射前后体质量差异无统计学意义;LINGO-1过表达诱导小鼠海马LINGO-1的mRNA水平升高、荧光强度增强(P<0.01);与对照组相比,LINGO-1过表达组小鼠在Morris水迷宫实验中的表现明显更差(P<0.05);LINGO-1过表达诱导小鼠海马各亚区体积显著下降(P<0.05,P<0.01),Spinophilin+树突棘密度显著降低(P<0.01,P<0.05),Spinophilin+树突棘数量显著减少(P<0.05)。结论海马立体定位注射过表达LINGO-1腺相关病毒能够特异性上调小鼠海马内LINGO-1水平,海马LINGO-1的异常高表达可导致小鼠海马体积减小及Spinophilin+树突棘突触丢失,并在一定程度上损伤其空间学习与记忆能力。

关键词： LINGO-1 树突棘突触海马学习记忆

弓形虫ROP16蛋白与NKRF互作对人非小细胞肺癌A549细胞凋亡和周期的影响

在线全文

学校读者我要写书评

暂无评论

中国兽医科学 2024年第7期54卷 982-992页

作者：周毓宁赵志军李光琪李佳铭党甜甜林永仙于欣宁夏医科大学临床医学院宁夏银川750004 宁夏医科大学总医院医学实验中心宁夏银川750004 宁夏临床病原微生物重点实验室宁夏银川750004 宁夏医科大学检验学院宁夏银川750004

为探讨刚地弓形虫Ⅰ/Ⅱ/Ⅲ型ROP16蛋白与NKRF互作对A549细胞凋亡、周期及增殖的影响。本研究通过构建过表达Ⅰ、Ⅱ、Ⅲ型ROP16蛋白和空载体对照组的慢病毒感染A549细胞,并通过实时荧光定量PCR(RT-q PCR)和Western-blot对Ⅰ/Ⅱ/Ⅲ型ROP1... 详细信息

为探讨刚地弓形虫Ⅰ/Ⅱ/Ⅲ型ROP16蛋白与NKRF互作对A549细胞凋亡、周期及增殖的影响。本研究通过构建过表达Ⅰ、Ⅱ、Ⅲ型ROP16蛋白和空载体对照组的慢病毒感染A549细胞,并通过实时荧光定量PCR(RT-q PCR)和Western-blot对Ⅰ/Ⅱ/Ⅲ型ROP16的表达进行验证。利用免疫共沉淀与液相色谱-质谱联用技术获取同ROP16可能发生互作的蛋白,并利用Venn图、Score分值、Intensity分值筛选出评分较高的互作蛋白NKRF进行验证。设计并合成NKRF-siRNA,分别转染至过表达Ⅰ/Ⅱ/Ⅲ型ROP16细胞,并利用CCK-8法检测各组细胞增殖情况,利用RT-qPCR和Western-blot分别对凋亡相关蛋白及细胞周期相关蛋白的m RNA和蛋白表达水平进行检测。此次试验成功构建了Ⅰ/Ⅱ/Ⅲ型ROP16过表达A549稳转细胞株。利用IP-MS及CO-IP技术筛选并验证ROP16互作蛋白NKRF。筛选并构建NKRF沉默的过表达各型ROP16蛋白A549细胞。在过表达Ⅰ型、Ⅲ型ROP16的A549细胞中,促凋亡蛋白Bax表达水平上调,抑凋亡蛋白BCL-2、Caspase-9、p53表达水平明显下调;细胞周期抑制蛋白p21表达明显上调,而G1/S期相关蛋白CDK6和CyclinD1蛋白表达明显下调,提示Ⅰ、Ⅲ型ROP16蛋白会引起细胞凋亡和周期停滞,而在沉默NKRF组中,过表达Ⅰ型、Ⅲ型ROP16蛋白的A549细胞中Ⅰ型、Ⅲ型ROP16蛋白的促凋亡作用减弱,细胞周期无明显停滞,与Ⅱ型ROP16蛋白之间没有统计学差异。综上所述得出弓形虫Ⅰ、Ⅲ型ROP16蛋白通过与NKRF互作,诱导A549细胞凋亡、细胞周期阻滞并抑制A549细胞增殖。

关键词：非小细胞肺癌 ROP16蛋白刚地弓形虫 NF-κB通路 NF-κB抑制因子

同方期刊数据库

在线全文

学校读者我要写书评

暂无评论

严寒地区某体育馆建筑室内热环境分析及优化

制冷与空调 2024年第3期24卷 62-65,94页

作者：余宾华吕洁温雨欣周雨宁李玥昕沈阳工业大学建筑与土木工程学院

为了研究严寒地区体育馆建筑存在的冷热不舒适的问题,文章以沈阳工业大学体育馆建筑为例,针对学校建筑的特点,采用实地测量和问卷调查的方法,分析了体育馆建筑地下水源热泵系统在设计和运维方面存在的问题,并通过对体育馆比赛大厅1月份... 详细信息

为了研究严寒地区体育馆建筑存在的冷热不舒适的问题,文章以沈阳工业大学体育馆建筑为例,针对学校建筑的特点,采用实地测量和问卷调查的方法,分析了体育馆建筑地下水源热泵系统在设计和运维方面存在的问题,并通过对体育馆比赛大厅1月份热环境实测数据发现:体育馆比赛大厅温度大部分时间处于14~18℃,采暖效果不达标,影响人体的热舒适性。针对体育馆室内热环境问题给出了相应的优化方案,为严寒地区体育馆建筑室内热环境的优化与改善提供参考。

关键词：严寒地区体育馆地下水源热泵室内热环境优化方案

Sodium metals for single emitter strong coupling:Alternative plasmonic candidates beyond noble metals

在线全文

学校读者我要写书评

暂无评论

Science China(Physics,Mechanics & Astronomy) 2024年第8期67卷 106-117页

作者： Yi Zhang Shuying Chen yuning Han Xiulai Xu Lin zhou National Laboratory of Solid State Microstructures Collaborative Innovation Center of Advanced MicrostructuresJiangsu Key Laboratory of Artificial Functional MaterialsCollege of Engineering and Applied SciencesNanjing UniversityNanjing 210008China School of Information and Electronic Engineering(Sussex Artificial Intelligence Institute) Zhejiang Gongshang UniversityHangzhou 310018China Department of Physics&Astronomy University College LondonLondon WC1E 6BTUK State Key Laboratory for Mesoscopic Physics and Frontiers Science Center for Nano-optoelectronics School of PhysicsPeking UniversityBeijing 100871China

This work provides a theoretical investigation into the strong coupling between a single quantum emitter(QE)and the surface plasmons of sodium metals in two representative plasmonic systems,i.e.,the semi-infinite metal-dielectric interface and the metal nanoparticles(NPs)of monomer/dimer *** both configurations,sodium metals exhibit distinctly stronger coupling strength and lower optical loss in the optical region than their noble metal counterparts,demonstrating the ideal candidate characteristics for single-molecule-level strong couplings with distinctly facile operation *** results provide new insights into extreme light-matter interactions with potential applications in quantum information,optical sensors,quantum chemistry,etc.

关键词： sodium metals plasmonics single quantum emitter strong coupling pseudomode

同方期刊数据库

Enhancement of ionic conductivity and fracture toughness by infiltrating porous Li_(0.33)La_(0.56)TiO_(3) pellets

在线全文

学校读者我要写书评

暂无评论

Journal of Rare Earths 2024年第2期42卷 392-398,I0006页

作者： Xiaojuan Lu Mingyang Duan Jingyu Xiang yuning Liang Songtao Liu Hebei Key Lab of Power Plant Flue Gas Multi-Pollutants Control Department of Environmental Science and EngineeringNorth China Electric Power UniversityBaoding071003China

Although solid-state lithium electrolytes have the potential to reduce the safety issues associated with organic liquid electrolytes,disadvantages such as low total conductivity,large interface impedance,and delamination of the interface due to cyclic stress still need to be *** solid-state lithium-ion conductor Li_(0.33)La_(0.56)TiO_(3)(LLTO) was prepared via a hydrothermal route by using CTAB as templates in this *** LLTO with micro-porous channels was obtained and the total conductivity is comparable to the non-porous *** LLTO pellets are infiltrated with the non-porous LLTO precursor solution,and the total conductivities of the infiltrated porous LLTO are all higher than those without *** infiltration,the porous LLTO calcined at 600℃ achieves the highest total conductivity,7.88×10^(-5) S/*** fracture toughness of the infiltrated LLTO is higher than that of the non-porous *** results demonstrate a new way to prepare solid-state lithium-ion conductors with high ionic conductivity and great tolerance to cyclic stress.

关键词： Perovskite Porous material Infiltration Ionic conductors Fracture toughness Rare earths

Automated identification of steel weld defects,a convolutional neural network improved machine learning approach

在线全文

学校读者我要写书评

暂无评论

Frontiers of Structural and Civil Engineering 2024年第2期18卷 294-308页

作者： Zhan SHU Ao WU yuning SI Hanlin DONG Dejiang WANG Yifan LI School of Mechanics and Engineering Science Shanghai UniversityShanghai 200444China School of Civil Engineering Shanghai Normal UniversityShanghai 201418China Shanghai PinlanData Technology Co. Ltd.Shanghai 200072China

This paper proposes a machine-learning-based methodology to automatically classify different types of steel weld defects,including lack of the fusion,porosity,slag inclusion,and the qualified(no defects)*** methodology solves the shortcomings of existing detection methods,such as expensive equipment,complicated operation and inability to detect internal *** study first collected percussed data from welded steel members with or without weld ***,three methods,the Mel frequency cepstral coefficients,short-time Fourier transform(STFT),and continuous wavelet transform were implemented and compared to explore the most appropriate features for classification of weld *** and convolutional neural network-enhanced algorithms were used to classify,the extracted ***,experiments were designed and performed to validate the proposed *** showed that STFT achieved higher accuracies(up to 96.63%on average)in the weld status *** convolutional neural network-enhanced support vector machine(SVM)outperformed six other algorithms with an average accuracy of 95.8%.In addition,random forest and SVM were efficient approaches with a balanced trade-off between the accuracies and the computational efforts.

关键词： steel weld machine learning convolutional neural network weld defect detection classification task percussion

Study on blood pressure rhythm in hypertensive patients with Yin deficiency syndrome and a random forest model for predicting hypertension with Yin deficiency syndrome

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Journal of Traditional Chinese Medicine 2024年第3期44卷 564-571页

作者： zhou Ying LI Ping LUAN Jianwei SHEN Rui WU Yinglan XU Qiwen WANG Xinyue ZHU Yao XU Xiangru LIU Zitian JIANG yuning ZHONG Yong HE Yun JIANG Weimin Department of Cardiology the Affiliated Hospital of Nanjing University of Chinese MedicineJiangsu Province Hospital of Traditional Chinese Medicine Department of Health Management Centre Jinling HospitalAffiliated Hospital of Medical SchoolNanjing University Emergency Department Longhua HospitalShanghai University of Traditional Chinese Medicine Department of General Internal Medicine the Affiliated Hospital of Nanjing University of Chinese MedicineJiangsu Province Hospital of Traditional Chinese Medicine

OBJECTIVE: To investigate blood pressure rhythm(BPR)in Yin deficiency syndrome of hypertension(YDSH)patients and develop a random forest model for predicting ***: Our study was consistent with technical processes and specification for developing guidelines of Evidence-based Chinese medicine clinical practice(T/CACM 1032-2017). We enrolled 234 patients who had been diagnosed with primary hypertension without antihypertensive medications prior to the enrollment. All participants were divided into Yin deficiency group(YX, n = 74) and non-Yin deficiency group(NYX, n = 160).Participants were professionally grouped by three experienced chief Traditional Chinese Medicine(TCM)physicians according to four examinations(i.e.,inspection, listening and smelling, inquiry and palpation).We collected data on 24 h ambulatory blood pressure monitoring(ABPM) and YDSH rating scale. We divided 24 h of a day into 12 two-hour periods [Chen-Shi(7:00-9:00), Si-Shi(9:00-11:00), Wu-Shi(11:00-13:00), Wei-Shi(13:00-15:00), Shen-Shi(15:00-17:00), You-Shi(17:00-19:00), Xu-Shi(19:00-21:00), Hai-Shi(21:00-23:00), ZiShi(23:00-1:00), Chou-Shi(1:00-3:00), Yin-Shi(3:00-5:00), Mao-Shi(5:00-7:00)] according to the theory of “midnight-midday ebb flow”. We used random forest to build the diagnostic model of YDSH, with whether it was Yin deficiency syndrome as the outcome. RESULTS: Compared with NYX group, YX group had more female participants with older age, lower waist circumference, body mass index(BMI), diastolic blood pressure(DBP), and smoking and drinking rate(all P < 0.05). The YDSH rating scores of YX group [28.5(21.0-36.0)] were significantly higher than NYX group [13.0(8.0-22.0)](P < 0.001), and the typical symptoms of YX group included vexing heat in the chest, palms and soles, dizziness, dry eyes, string-like and fine pulse, soreness and weakness of lumbus and knees, palpitations, reddened cheeks, and tinnitus(all P < 0.05). The ratio of non-dipper hypertension in YX group was higher t

关键词： blood pressure rhythm blood pressure variability deficiency syndrome hypertension random forest

同方期刊数据库

Comprehensive characterization of cell disulfidptosis in human cancers:An integrated pan-cancer analysis

在线全文

学校读者我要写书评

暂无评论

Genes & Diseases 2024年第4期11卷 5-8页

作者： Guo Zhao Yale Jiang yuning Wang Shuhang Wang Ning Li Clinical Trial Center National Cancer Center/National Clinical Research Center for Cancer/Cancer HospitalChinese Academy of Medical Sciences and Peking Union Medical CollegeBeijing 100021China

Excessive accumulation of disulfide molecules,like cystine,can induce disulfide stress and high toxicity in cells,but the reduced form of nicotinamide adenine dinucleotide phosphate can reverse this process and mitiga... 详细信息

关键词： disulfide cancer characterization