期刊文献+
共找到321篇文章
< 1 2 17 >
每页显示 20 50 100
Real-time prediction of mechanical behaviors of underwater shield tunnel structure using machine learning method based on structural health monitoring data 被引量:2
1
作者 Xuyan Tan Weizhong Chen +2 位作者 Tao Zou Jianping Yang Bowen Du 《Journal of Rock Mechanics and Geotechnical Engineering》 SCIE CSCD 2023年第4期886-895,共10页
Predicting the mechanical behaviors of structure and perceiving the anomalies in advance are essential to ensuring the safe operation of infrastructures in the long run.In addition to the incomplete consideration of i... Predicting the mechanical behaviors of structure and perceiving the anomalies in advance are essential to ensuring the safe operation of infrastructures in the long run.In addition to the incomplete consideration of influencing factors,the prediction time scale of existing studies is rough.Therefore,this study focuses on the development of a real-time prediction model by coupling the spatio-temporal correlation with external load through autoencoder network(ATENet)based on structural health monitoring(SHM)data.An autoencoder mechanism is performed to acquire the high-level representation of raw monitoring data at different spatial positions,and the recurrent neural network is applied to understanding the temporal correlation from the time series.Then,the obtained temporal-spatial information is coupled with dynamic loads through a fully connected layer to predict structural performance in next 12 h.As a case study,the proposed model is formulated on the SHM data collected from a representative underwater shield tunnel.The robustness study is carried out to verify the reliability and the prediction capability of the proposed model.Finally,the ATENet model is compared with some typical models,and the results indicate that it has the best performance.ATENet model is of great value to predict the realtime evolution trend of tunnel structure. 展开更多
关键词 shied tunnel Machine learning MONITORING Real-time prediction Data analysis
下载PDF
海水网箱养殖高体Shi弧菌病致病菌研究 被引量:41
2
作者 吴后波 潘金培 《水产学报》 CAS CSCD 北大核心 1997年第2期171-174,共4页
从患病高体Shi病灶上分离到7株可疑致病菌,人工感染试验证明,菌株95-5-3和95-5-5为强毒菌株,这2株菌进行人工感染,死亡率均为100%,症状与自然发病相似。这2株菌的特征一致,根据形态有主生理生化特征,应归... 从患病高体Shi病灶上分离到7株可疑致病菌,人工感染试验证明,菌株95-5-3和95-5-5为强毒菌株,这2株菌进行人工感染,死亡率均为100%,症状与自然发病相似。这2株菌的特征一致,根据形态有主生理生化特征,应归入哈维氏弧菌。药敏实验的结果表明,磺胺类药物和先锋必素对致病菌有较强的抑制作用。 展开更多
关键词 高体shi 弧菌病 哈维氏弧菌 海水 网箱养殖
下载PDF
一种探测shill出价的数据挖掘模型 被引量:6
3
作者 罗掌华 陈芝 刘鲁 《系统工程》 CSCD 北大核心 2004年第10期101-104,共4页
随着网上拍卖规模的不断扩大,作为最具隐蔽性的在线欺诈形式,shill出价开始引起人们的广泛关注,但由于传统拍卖理论缺乏对shill出价理论的研究,致使至今仍无有效的方法制约shill出价。本文通过引入生物信息学方法,模拟生物基因的遗传变... 随着网上拍卖规模的不断扩大,作为最具隐蔽性的在线欺诈形式,shill出价开始引起人们的广泛关注,但由于传统拍卖理论缺乏对shill出价理论的研究,致使至今仍无有效的方法制约shill出价。本文通过引入生物信息学方法,模拟生物基因的遗传变异特性,在基于shill出价规律序列具有遗传变异的基础上,提出了一种探测shill出价规律序列的数据挖掘模型,模型克服了传统方法因shill可能频繁变更用户ID而失灵的问题。 展开更多
关键词 shi11出价 数据挖掘 出价序列 在线拍卖欺诈 遗传变异规律
下载PDF
硼替佐米对急性单核细胞白血病细胞株SHI-1诱导凋亡作用及其对Bcl2l12、Bcl-2和Bax基因表达影响 被引量:2
4
作者 牧启田 欧阳桂芳 +5 位作者 楼燕如 陈晓蓓 陆滢 梁伟 张怡 徐薇 《中国实验血液学杂志》 CAS CSCD 2008年第5期1016-1020,共5页
本研究探讨蛋白酶抑制剂硼替佐米对急性单核细胞白血病细胞株SHI-1增殖和凋亡的影响及Bcl2l12、Bcl-2和Bax基因在其中的作用。用MTT比色法观察硼替佐米对SHI-1细胞的生长抑制作用,用Annexin-V标记、线粒体跨膜电位(Δψm)和DNA凝胶电泳... 本研究探讨蛋白酶抑制剂硼替佐米对急性单核细胞白血病细胞株SHI-1增殖和凋亡的影响及Bcl2l12、Bcl-2和Bax基因在其中的作用。用MTT比色法观察硼替佐米对SHI-1细胞的生长抑制作用,用Annexin-V标记、线粒体跨膜电位(Δψm)和DNA凝胶电泳分析细胞凋亡,用RT-PCR方法检测0、6,12和24小时Bcl2l12、Bcl-2和Bax基因表达。结果表明,硼替佐米呈时间和剂量依赖性抑制SHI-1细胞生长,24小时和48小时半数抑制浓度分别为54.13 nmol/L和5.45 nmol/L;硼替佐米能够诱导SHI-1细胞凋亡,在6小时Annexin-V阳性细胞就开始增高并呈时间依赖性,Δψm减低,形态学可见明显细胞核凝聚、固缩和碎裂,DNA凝胶电泳显示DNA片段化;RT-PCR显示,Bcl2l12表达增高,Bcl-2表达减低,但Bax表达无明显改变。结论:硼替佐米抑制SHI-1细胞增殖,并可能通过上调Bcl2l12基因和下调Bcl-2基因,使线粒体膜电位下降而促使SHI-1细胞发生凋亡。 展开更多
关键词 硼替佐米 shi—1细胞 细胞凋亡 Bcl2112基因 BCL-2基因 BAX基因 急性单核细胞白血病
下载PDF
Genome-wide identification,characterization and functional prediction of the SRS gene family in sesame(Sesamum indicum L.) 被引量:1
5
作者 Farjana Afroz Susmi Tasmina Islam Simi +1 位作者 Md Nahid Hasan Md Abdur Rahim 《Oil Crop Science》 CSCD 2024年第2期69-80,共12页
Sesame(Sesamum indicum L.)is an ancient oilseed crop of the Pedaliaceae family with high oil content and potential health benefits.SHI RELATED SEQUENCE(SRS)proteins are the transcription factors(TFs)specific to plants... Sesame(Sesamum indicum L.)is an ancient oilseed crop of the Pedaliaceae family with high oil content and potential health benefits.SHI RELATED SEQUENCE(SRS)proteins are the transcription factors(TFs)specific to plants that contain RING-like zinc finger domain and are associated with the regulation of several physiological and biochemical processes.They also play vital roles in plant growth and development such as root formation,leaf development,floral development,hormone biosynthesis,signal transduction,and biotic and abiotic stress responses.Nevertheless,the SRS gene family was not reported in sesame yet.In this study,identification,molecular characterization,phylogenetic relationship,cis-acting regulatory elements,protein-protein interaction,syntenic relationship,duplication events and expression pattern of SRS genes were analyzed in S.indicum.We identified total six SiSRS genes on seven different linkage groups in the S.indicum genome by comparing with the other species,including the model plant Arabidopsis thaliana.The SiSRS genes showed variation in their structure like2–5 exons and 1–4 introns.Like other species,SiSRS proteins also contained‘RING-like zinc finger'and‘LRP1'domains.Then,the SiSRS genes were clustered into subclasses via phylogenetic analysis with proteins of S.indicum,A.thaliana,and some other plant species.The cis-acting regulatory elements analysis revealed that the promoter region of SiSRS4(SIN_1011561)showed the highest 13 and 16 elements for light-and phytohormone-responses whereas,SiSRS1(SIN_1015187)showed the highest 15 elements for stress-response.The ABREs,or ABA-responsive elements,were found in a maximum of 8 copies in the SiSRS3(SIN 1009100).Moreover,the available RNA-seq based expression of SiSRS genes revealed variation in expression patterns between stress-treated and non-treated samples,especially in drought and salinity conditions in.S.indicum.Two SiSRS genes like SiSRS1(SIN_1015187)and SiSRS5(SIN_1021065),also exhibited variable expression patterns between control vs PEG-treated sesame root samples and three SiSRS genes,including SiSRS1(SIN_1015187),SiSRS2(SIN_1003328)and SiSRS5(SIN_1021065)were responsive to salinity treatments.The present outcomes will encourage more research into the gene expression and functionality analysis of SiSRS genes in S.indicum and other related species. 展开更多
关键词 SiSRS gene family shi Transcription factor CHARACTERIZATION Sesamum indicum
下载PDF
1,25-(OH)_2 D_3对白血病细胞株K562和SHI-1 ppGalNAcTs表达的影响 被引量:1
6
作者 郭向红 莫建华 +2 位作者 潘浩 金美芳 吴士良 《江苏大学学报(医学版)》 CAS 2005年第1期17-20,24,共5页
目的:探讨在维生素D3的作用下,白血病细胞株K562与SHI-1ppGalNAcTs表达的变化。方法:应用RT-PCR法研究在不同浓度维生素D3的作用下,白血病细胞株K562与SHI-1ppGalNAcTs表达的变化。结果1,25-(OH)2D3(10-6-10-8mol/L)可分别上调K562细胞... 目的:探讨在维生素D3的作用下,白血病细胞株K562与SHI-1ppGalNAcTs表达的变化。方法:应用RT-PCR法研究在不同浓度维生素D3的作用下,白血病细胞株K562与SHI-1ppGalNAcTs表达的变化。结果1,25-(OH)2D3(10-6-10-8mol/L)可分别上调K562细胞株ppGalNAcT2、T4、T5的表达。但在SHI-I细胞株,随着1,25-(OH)2D3浓度的增加ppGalNAcTI表达增加,T3表达没有变化、T4表达减少。结论:白血病细胞株K562与SHI-1PP-GMNAcTs的表达不同。在不同浓度维生素D3的作用下,白血病细胞株K562与SHI-IppGalNAcTs表达的变化也不同,说明不同ppGalNAcTs对1,25-(OH)2D3的反应不同。 展开更多
关键词 shi 表达 白血病细胞株 K562 NA 1 25-(OH)2D3 维生素D3 变化 RT-PCR法 反应
下载PDF
拟南芥SHI基因在烟草中的表达和矮化、延迟开花的烟草植株的获得 被引量:1
7
作者 彭世清 陈守才 《应用与环境生物学报》 CAS CSCD 北大核心 2005年第4期416-418,共3页
利用聚合酶链式反应(PCR)从拟南芥基因组DNA中克隆了拟南芥SHOTINTERNODS(SHI)基因,并进行了序列测定.以载体pBI121为基本骨架构建了SHI的植物表达载体,并导入根癌农杆菌EHA105.通过农杆菌介导的叶盘法将拟南芥SHI基因转入烟草.PCR和RT-... 利用聚合酶链式反应(PCR)从拟南芥基因组DNA中克隆了拟南芥SHOTINTERNODS(SHI)基因,并进行了序列测定.以载体pBI121为基本骨架构建了SHI的植物表达载体,并导入根癌农杆菌EHA105.通过农杆菌介导的叶盘法将拟南芥SHI基因转入烟草.PCR和RT-PCR检测证明,拟南芥SHI基因已整合到烟草基因组中并得以表达,获得了矮化、延迟开花的烟草植株. 展开更多
关键词 拟南芥 shi基因 转化 矮化 烟草
下载PDF
杜氏Shi链球菌病及其他常见病害防治的研究 被引量:5
8
作者 纪荣兴 胡石柳 《福建水产》 1998年第1期27-32,共6页
本文报道网箱养殖杜氏Shi链球菌及其他常见病害的防治。链球菌病的防治:鱼种阶段在饲料中加入氨苄青霉素7.5g/1000尾/d,每个疗程5-7d,隔7-10d进行下一次疗程,使用4个疗程,90d内不发病;成鱼采用肌肉注... 本文报道网箱养殖杜氏Shi链球菌及其他常见病害的防治。链球菌病的防治:鱼种阶段在饲料中加入氨苄青霉素7.5g/1000尾/d,每个疗程5-7d,隔7-10d进行下一次疗程,使用4个疗程,90d内不发病;成鱼采用肌肉注射青霉素G,剂量为;体重400-500g注射20-40万IU/尾,体重500-1000g注射40-80万IU/尾、体重1000g以上注射80万IU/尾1-3次。 展开更多
关键词 杜氏shi 链球菌病 网箱养殖 常见病害 防治
下载PDF
Na_2Cu_5Shi_4·4H_2O配合物的合成、结构及性质研究
9
作者 杨斌盛 胡永钢 +1 位作者 陈兆斌 刘文 《光谱学与光谱分析》 SCIE EI CAS CSCD 北大核心 2002年第6期941-944,共4页
合成了Na2 Cu5Shi4 ·4H2 O配合物 ,经元素分析 ,IR ,UV ,NMR ,荧光及分子力学计算等表征了配合物的结构。 2D1 HNMR谱及磁矩等测定表明 ,配合物中水杨酰肟酸π电子分布有大的改变 ,最大吸收峰红移 2 5nm ,芳环d质子表现出烷烃质子... 合成了Na2 Cu5Shi4 ·4H2 O配合物 ,经元素分析 ,IR ,UV ,NMR ,荧光及分子力学计算等表征了配合物的结构。 2D1 HNMR谱及磁矩等测定表明 ,配合物中水杨酰肟酸π电子分布有大的改变 ,最大吸收峰红移 2 5nm ,芳环d质子表现出烷烃质子性质 ;铜离子之间有强的磁相互作用 ,基态S为 1/2。 展开更多
关键词 Na2Cu5shi4·4H2O 合成 结构 水杨酰肟酸 配合物 性质 金属冠醚
下载PDF
Shi鱼养殖技术浅谈 被引量:1
10
作者 吴后波 潘金培 《南海研究与开发》 1996年第4期50-54,共5页
介绍了Shi鱼的生物学特征;并从养殖场地的选择,养殖设备的选择,苗种的培育以及Shi鱼的养成等几个方面介绍了Shi鱼的养殖技术,最后分析了Shi鱼养殖在我国的发展前景。
关键词 shi 养殖技术 养殖场地 海水养鱼
下载PDF
An Overview of the Achievements of Modern Research on the Flying Shadow Pavilion Pictorial
11
作者 CHEN Honghui 《Cultural and Religious Studies》 2024年第2期118-122,共5页
The current academic research on the Dian Shi Zhai Pictorial founded in 1884 has been perfected,but there is very little research on the Flying Shadow Pavilion Pictorial,which can be said to be derived from Dian Shi Z... The current academic research on the Dian Shi Zhai Pictorial founded in 1884 has been perfected,but there is very little research on the Flying Shadow Pavilion Pictorial,which can be said to be derived from Dian Shi Zhai Pictorial terms of both content and form,and which was founded by the Haiist painter Wu Youru in 1890 in order to reward the increasing number of admirers,but it is still in the initial stage.Flying Shadow Pavilion Pictorial consisted of four parts:pictures of ladies in Shanghai costumes,news about current affairs,pictures of animals,and compilations of women,each of which was accompanied by the then popular notebooks,which were popular at the time among the then readers because of the matching of pictures with text and the mixing of narratives and discussions.This paper takes Flying Shadow Pavilion Pictorial as the main object,summarizes the existing literature about Flying Shadow Pavilion Pictorial,points out the deficiencies of the current research on this basis,and points out the development trend of Flying Shadow Pavilion Pictorial in the future research. 展开更多
关键词 Flying Shadow Pavilion Pictorial Dian shi Zhai Pictorial Late Qing Dynasty’s pictorial
下载PDF
高体Shi的摄食与温度,透明度的关系
12
作者 陈昌生 黄佳鸣 《集美大学学报(自然科学版)》 CAS 北大核心 1996年第2X期75-79,共5页
高体Shi的摄食与温度,透明度有密切关系。冬季水温代于12℃,不摄食;水温高于13℃,开始摄食;春季水温上升,摄食量变大;夏季水温为25-27℃时,日摄食量达到最大;秋季水温下降,摄食量逐渐减少。
关键词 高体shi 摄食 温度 透明度 海水鱼 养殖
下载PDF
Introduction to "Ma Shi Wen Tong"
13
作者 张楠 《科教导刊》 2015年第10X期23-24,共2页
As the first works of Chinese grammar, "Ma Shi Wen Tong" has epoch-making significance in the history of Chinese grammar. It marks that Chinese grammar study has become an independent science. This research ... As the first works of Chinese grammar, "Ma Shi Wen Tong" has epoch-making significance in the history of Chinese grammar. It marks that Chinese grammar study has become an independent science. This research intends to generalize "Wen Tong". 展开更多
关键词 GRAMMAR MA shi WEN Tong
下载PDF
Manufacturing techniques of armor strips excavated from Emperor Qin Shi Huang's mausoleum,China 被引量:2
14
作者 廖灵敏 潘春旭 马宇 《Transactions of Nonferrous Metals Society of China》 SCIE EI CAS CSCD 2010年第3期395-399,共5页
The chemical compositions and microstructures of the armor strips excavated from the Emperor Qin Shi Huang's mausoleum were examined systematically by using optical microscopy and electron microscopy.It was found ... The chemical compositions and microstructures of the armor strips excavated from the Emperor Qin Shi Huang's mausoleum were examined systematically by using optical microscopy and electron microscopy.It was found that the armor strips were made of pure copper.Based on the morphology of α-Cu recrystal grain and copper sulphide(Cu2S) inclusions in the armor strips,the manufacturing techniques were proposed as follows:smelting pure copper,casting a lamellar plate,forming the cast ingots into sheets through repeated cold forging combined with annealing heat treatment,and finally cutting the sheets into filaments.Furthermore,through the deformation of copper sulphide(Cu2S) inclusions in the strips,the work rate during forging was evaluated and calculated to be close to 75%. 展开更多
关键词 Qin shi Huang's mausoleum armor strips copper manufacturing techniques cold forging annealing
下载PDF
不锈钢零件电镀锡shi合金 被引量:2
15
作者 谭琼林 高军 《材料保护》 CAS CSCD 北大核心 1990年第11期30-32,共3页
不锈钢电镀锡铈合金,可提高不锈钢的焊接性,使不锈钢在电子行业的应用更加广泛,具有较高的推广价值。由于不锈钢含有较多的镍铬元素,表面易生成一层致密的氧化膜,这层氧化膜有较高的钝态,在不锈钢表面很难得结合力牢固的电镀层。如果要... 不锈钢电镀锡铈合金,可提高不锈钢的焊接性,使不锈钢在电子行业的应用更加广泛,具有较高的推广价值。由于不锈钢含有较多的镍铬元素,表面易生成一层致密的氧化膜,这层氧化膜有较高的钝态,在不锈钢表面很难得结合力牢固的电镀层。如果要在不锈钢表面上获得理想的、结合力牢固的电镀层,必须攻克两大难关:第一是在施镀前破坏不锈钢表面的钝态膜;第二是应立即镀上一层薄的电镀层,再镀中间层,然后才能镀锡铈合金。但不锈钢表面的钝态膜用常规方法酸洗是除不掉的,尤其是小形易重叠零件的钝态膜更难除掉,我们在不锈钢零件镀锡铈合金的生产实践中感到阴极电解活化,再高氯闪镍效果较好。具体工艺过程如下: 展开更多
关键词 电镀 不锈钢 零件 shi合金
下载PDF
Determination of 13 Trace Elements in Anshun Thorn Pear (Rosa roxburghii) and Golden Thorn Pear (Rosa sterilis S.D.Shi) by ICP-MS 被引量:2
16
作者 Wei CHEN Kaibin LI +2 位作者 Qiuyue KONG Sibu MA Wen YANG 《Agricultural Biotechnology》 CAS 2019年第2期157-159,231,共4页
[Objectives] This study was conducted to establish an analytical method for the establishment of 13 trace elements in Anshun thorn pear(Rosa roxburghii) and golden thorn pear(Rosa sterilis S. D. Shi). [Methods] Nitric... [Objectives] This study was conducted to establish an analytical method for the establishment of 13 trace elements in Anshun thorn pear(Rosa roxburghii) and golden thorn pear(Rosa sterilis S. D. Shi). [Methods] Nitric acid was used as the digestion system for microwave digestion. Inductively coupled plasma mass spectrometry(ICP-MS) was used to determine the trace elements in thorn pear and golden thorn pear. [Results] Be, Ti, V, Cr, Mn, Co, Ni, As, Sr, Mo, Cd, Sb and Hg were determined by ICP-MS method in thorn pear and golden thorn pear. The correlation coefficients of the regression equations of the elements were higher than 0.996; the precision RSD was lower than 2.87%; and the recovery ranged from 94.3% to 109.8%. [Conclusions] The method has the advantages of high sensitivity, good accuracy and simultaneous detection of multiple elements, and provides a reference method and theoretical basis for determining trace elements in thorn pear and golden thorn pear and other fruits. 展开更多
关键词 Inductively coupled plasma mass spectrometry Microwave DIGESTION method ROSA roxburghii ROSA sterilis S. D. shi Element analysis
下载PDF
A Network Pharmacology Study on the Effects of Ma Xing Shi Gan Decoction on Influenza 被引量:3
17
作者 LONG Xi LIU Le-Ping +2 位作者 XU Xin-Yi LI Ling ZHANG Guo-Min 《Digital Chinese Medicine》 2020年第3期163-179,共17页
Objective Pharmacological methods were used to screen targets and signaling pathways of Ma Xing Shi Gan Decoction(MXSGD)during influenza treatments,and mechanisms underlying antiinfluenza effects were elucidated.Metho... Objective Pharmacological methods were used to screen targets and signaling pathways of Ma Xing Shi Gan Decoction(MXSGD)during influenza treatments,and mechanisms underlying antiinfluenza effects were elucidated.Methods The Traditional Chinese Medicine Systems Pharmacology Database and Analysis Platform(TCMSP)and relevant literature were searched under predefined conditions to identify the main compounds and their targets.Interactions between the target proteins were predicted using the STRING database.Gene Ontology(GO)functional enrichment analyses and Kyoto Encyclopedia of Genes and Genomes(KEGG)pathway analyses were performed on the core targets involved in the influenza protein-protein interaction(PPI)network,using WebGestalt and the reactome database.iGEMDOCK was used for molecular docking of receptors and ligands to produce docking scores,and the results were visualized using Autodock and PyMOL.Results In total,126 major compounds and their respective targets were screened.355 influenza target proteins and 1221 influenza protein interactions were predicted using the STRING database.Influenza-related signaling pathways were strongly enriched in pharmacodynamic targets of MXSGD such as cytokine signaling in immune system and signaling by interleukin.The main biological process was response to the stimulates.Molecular docking results showed that RELALicochalcone A docking elicited by MXSGD,was superior to that of other target proteins and active compounds,suggesting that the docking site is also the main effector site of MXSGD during influenza treatments.Conclusions The results showed that MXSGD exerts antiinfluenza effects by interfering with virus adsorption,inhibiting virus proliferation,influencing immune functions and protecting host cells,which may prevent inflammation-induced tissue damage. 展开更多
关键词 Network pharmacology Ma Xing shi Gan Decoction(MXSGD) INFLUENZA Cytoscape iGEMDOCK RELA-Licochalcone A
下载PDF
A Comparative Study of Two Spanish Versions of the Poem Junzi Xielao of Shi Jing 被引量:1
18
作者 WU Qian 《Journal of Literature and Art Studies》 2019年第2期175-182,共8页
The purpose of this paper is to do a comparative study of two complete Spanish versions of Shi Jing with a detailed analysis of the poem Junzi Xielao.The culture and personal backgrounds of the two translators,their t... The purpose of this paper is to do a comparative study of two complete Spanish versions of Shi Jing with a detailed analysis of the poem Junzi Xielao.The culture and personal backgrounds of the two translators,their translation purposes and intended readers largely influenced the translating style and technique of the two versions. 展开更多
关键词 shi Jing SPANISH TRANSLATION TRADITIONAL Chinese culture extratextual factors
下载PDF
Systematic Pharmacological Strategies to Explore the Regulatory Mechanism of Ma Xing Shi Gan Decoction on COVID-19 被引量:3
19
作者 ZHANG Shi-Ying LI Ling +3 位作者 ZHANG Ning XIA Hong-Tao LU Fang-Guo LI Wei-Qing 《Digital Chinese Medicine》 2020年第2期96-115,共20页
Objective To use systematic pharmacological strategies to explore the regulatory mechanisms of Ma Xing Shi Gan Decoction(MXSGD)against the coronavirus disease 2019(COVID-19).Methods Data on the compounds and targets o... Objective To use systematic pharmacological strategies to explore the regulatory mechanisms of Ma Xing Shi Gan Decoction(MXSGD)against the coronavirus disease 2019(COVID-19).Methods Data on the compounds and targets of MXSGD were collected from the Traditional Chinese Medicene Systems Parmacology Database and Analysis Platform(TCMSP)and TCM Databases@Taiwan.Data on ACE2-related targets and the protein-protein interaction(PPI)were collected from the String database.The Cytoscape 3.7.2 was used to construct and analyze the networks.The DAVID platform was used for Gene Ontology(GO)and pathway enrichment analyses.Results Data on 272 MXSGD targets and 21 SARS-CoV-2 potential targets were collected.Four networks were constructed and analyzed based on the data:(1)compound-target network of MXSGD;(2)MXSGD-SARS-CoV-2-PPI network;(3)cluster of MXSGD-SARS-CoV-2-PPI network;(4)Herb-Pathway-Target network.The core targets included AKT1,MAPK3,IL-6,TP53,VEGFA,TNF,CASP3,EGFR,EGF and MAPK1.The antiviral biological processes were inflammatory responses(inflammatory cells,inflammatory cytokines and their signaling pathways),immune responses(T cells,monocytes,B cells and other immune cells),immune factors(IFN-γ,TNF-αand so on),virus defense,humoral immunity and mucosal innate immune response.The antivirus-related signaling pathways included TNF,NOD-like receptor,FoxO,PI3K-AKT and Toll-like receptor signaling pathways.Conclusions MXSGD can control disease progression by regulating multiple compounds and targets;it can reduce inflammation and balance immunity by regulating several proteins that interact with ACE2 and signaling pathways closely related to disease development. 展开更多
关键词 Coronavirus disease 2019(COVID-19) Ma Xing shi Gan Decoction(MXSGD) Network pharmacology Mechanism ACE2 receptor
下载PDF
标准外伤大骨瓣联合显微手术治疗SHI的疗效观察 被引量:1
20
作者 段荣军 李卫东 +1 位作者 何庆璋 丁源 《现代科学仪器》 2021年第3期117-121,共5页
目的观察联合标准外伤大骨瓣减压与显微手术治疗重型颅脑损伤(SHI)的效果。方法回顾性抽选2016年2月~2020年6月本院80例SHI患者的临床各项档案,以手术方法不同,划分成不同组:观察组(34例)、对照组(46例),对照组患者实施标准外伤大骨瓣... 目的观察联合标准外伤大骨瓣减压与显微手术治疗重型颅脑损伤(SHI)的效果。方法回顾性抽选2016年2月~2020年6月本院80例SHI患者的临床各项档案,以手术方法不同,划分成不同组:观察组(34例)、对照组(46例),对照组患者实施标准外伤大骨瓣减压术,观察组患者在对照组的基础上联合显微手术治疗。对两组手术前后颅内压(ICP)和格拉斯哥昏迷评分法(GCS)变化以及血清神经因子水平、临床恢复进程、并发症等资料进行统计与对比。结果术后3d,观察组患者ICP为(27.21±3.12)mmHg,明显低于对照组的(31.59±3.46)mmHg(P<0.05)。术后7d,观察组的神经元特异性烯醇化酶(NSE)指标(13.86±2.32)μg/L、髓鞘碱性蛋白(MBP)指标(6.53±1.09)μg/L均明显低于对照组(16.89±3.15)μg/L、(8.15±1.17)μg/L(P<0.05);术后14d,观察组的GCS评分(10.19±2.87)分明显高于对照组(8.23±2.97)分(P<0.05);术后6月,观察组患者神经功能评分[日常生活活动能力(Barthel)量表、认知功能(LOCTA)量表]均≥3级的比例(62.50%)明显高于对照组(38.10%)(P<0.05)。观察组预后良好率(55.88%)、并发症发生率(15.63%)依次高于对照组(28.26%)、(38.10%)(P<0.05)。结论与仅实施标准外伤大骨瓣减压术相比较,联合显微手术可进一步提高SHI手术治疗效果与预后恢复水平,减轻预后不良风险,可作为临床推荐的治疗方案之一。 展开更多
关键词 shi 标准外伤大骨瓣减压术 显微手术
下载PDF
上一页 1 2 17 下一页 到第
使用帮助 返回顶部