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Complexity Considerations in the Heisenberg Uncertainty Principle
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作者 Logan Nye 《Journal of High Energy Physics, Gravitation and Cosmology》 CAS 2024年第4期1470-1513,共44页
This work introduces a modification to the Heisenberg Uncertainty Principle (HUP) by incorporating quantum complexity, including potential nonlinear effects. Our theoretical framework extends the traditional HUP to co... This work introduces a modification to the Heisenberg Uncertainty Principle (HUP) by incorporating quantum complexity, including potential nonlinear effects. Our theoretical framework extends the traditional HUP to consider the complexity of quantum states, offering a more nuanced understanding of measurement precision. By adding a complexity term to the uncertainty relation, we explore nonlinear modifications such as polynomial, exponential, and logarithmic functions. Rigorous mathematical derivations demonstrate the consistency of the modified principle with classical quantum mechanics and quantum information theory. We investigate the implications of this modified HUP for various aspects of quantum mechanics, including quantum metrology, quantum algorithms, quantum error correction, and quantum chaos. Additionally, we propose experimental protocols to test the validity of the modified HUP, evaluating their feasibility with current and near-term quantum technologies. This work highlights the importance of quantum complexity in quantum mechanics and provides a refined perspective on the interplay between complexity, entanglement, and uncertainty in quantum systems. The modified HUP has the potential to stimulate interdisciplinary research at the intersection of quantum physics, information theory, and complexity theory, with significant implications for the development of quantum technologies and the understanding of the quantum-to-classical transition. 展开更多
关键词 UNCeRTAINTY complexity QUANTUM MeASUReMeNT INFORMATION eNTANGLeMeNT
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Scale, Complexity, and Cybersecurity Risk Management
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作者 Christopher Briscoe Carl Young 《Journal of Information Security》 2024年第4期524-544,共21页
Elementary information theory is used to model cybersecurity complexity, where the model assumes that security risk management is a binomial stochastic process. Complexity is shown to increase exponentially with the n... Elementary information theory is used to model cybersecurity complexity, where the model assumes that security risk management is a binomial stochastic process. Complexity is shown to increase exponentially with the number of vulnerabilities in combination with security risk management entropy. However, vulnerabilities can be either local or non-local, where the former is confined to networked elements and the latter results from interactions between elements. Furthermore, interactions involve multiple methods of communication, where each method can contain vulnerabilities specific to that method. Importantly, the number of possible interactions scales quadratically with the number of elements in standard network topologies. Minimizing these interactions can significantly reduce the number of vulnerabilities and the accompanying complexity. Two network configurations that yield sub-quadratic and linear scaling relations are presented. 展开更多
关键词 complexity CYBeRSeCURITY SCALe Scaling Relations Stochastic Linear Non-Linear MACROSCOPIC Organized complexity Disorganized complexity
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Applying the Shearlet-Based Complexity Measure for Analyzing Mass Transfer in Continuous-Flow Microchannels
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作者 Elena Mosheva Ivan Krasnyakov 《Fluid Dynamics & Materials Processing》 EI 2024年第8期1743-1758,共16页
Continuous-flow microchannels are widely employed for synthesizing various materials,including nanoparticles,polymers,and metal-organic frameworks(MOFs),to name a few.Microsystem technology allows precise control over... Continuous-flow microchannels are widely employed for synthesizing various materials,including nanoparticles,polymers,and metal-organic frameworks(MOFs),to name a few.Microsystem technology allows precise control over reaction parameters,resulting in purer,more uniform,and structurally stable products due to more effective mass transfer manipulation.However,continuous-flow synthesis processes may be accompanied by the emergence of spatial convective structures initiating convective flows.On the one hand,convection can accelerate reactions by intensifying mass transfer.On the other hand,it may lead to non-uniformity in the final product or defects,especially in MOF microcrystal synthesis.The ability to distinguish regions of convective and diffusive mass transfer may be the key to performing higher-quality reactions and obtaining purer products.In this study,we investigate,for the first time,the possibility of using the information complexity measure as a criterion for assessing the intensity of mass transfer in microchannels,considering both spatial and temporal non-uniformities of liquid’s distributions resulting from convection formation.We calculate the complexity using shearlet transform based on a local approach.In contrast to existing methods for calculating complexity,the shearlet transform based approach provides a more detailed representation of local heterogeneities.Our analysis involves experimental images illustrating the mixing process of two non-reactive liquids in a Y-type continuous-flow microchannel under conditions of double-diffusive convection formation.The obtained complexity fields characterize the mixing process and structure formation,revealing variations in mass transfer intensity along the microchannel.We compare the results with cases of liquid mixing via a pure diffusive mechanism.Upon analysis,it was revealed that the complexity measure exhibits sensitivity to variations in the type of mass transfer,establishing its feasibility as an indirect criterion for assessing mass transfer intensity.The method presented can extend beyond flow analysis,finding application in the controlling of microstructures of various materials(porosity,for instance)or surface defects in metals,optical systems and other materials that hold significant relevance in materials science and engineering. 展开更多
关键词 Shearlet analysis complexity measure entropy measure CONVeCTION microchannels double-diffusive instability
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The Impact of Storyline Complexity on L2 Learners’Written Performance
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作者 CHEN Yu-lian 《Journal of Literature and Art Studies》 2024年第5期369-372,共4页
Task-based Language Teaching(TBLT)research has provided ample evidence that cognitive complexity is an important aspect of task design that influences learner’s performance in terms of fluency,accuracy,and syntactic ... Task-based Language Teaching(TBLT)research has provided ample evidence that cognitive complexity is an important aspect of task design that influences learner’s performance in terms of fluency,accuracy,and syntactic complexity.Despite the substantial number of empirical investigations into task complexity in journal articles,storyline complexity,one of the features of it,is scarcely investigated.Previous research mainly focused on the impact of storyline complexity on learners’oral performance,but the impact on learners’written performance is less investigated.Thus,this study aims at investigating the effects of narrative complexity of storyline on senior high school students’written performance,as displayed by its complexity,fluency,and accuracy.The present study has important pedagogical implications.That is,task design and assessment should make a distinction between different types of narrative tasks.For example,the task with single or dual storyline.Results on task complexity may contribute to informing the pedagogical choices made by teachers when prioritizing work with a specific linguistic dimension. 展开更多
关键词 storyline complexity narrative writing task complexity L2 writers
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Exploring Biocomplexity in Cancer: A Comprehensive Review
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作者 Andras Szasz Gyula Peter Szigeti 《Open Journal of Biophysics》 2024年第2期154-238,共85页
Living objects have complex internal and external interactions. The complexity is regulated and controlled by homeostasis, which is the balance of multiple opposing influences. The environmental effects finally guide ... Living objects have complex internal and external interactions. The complexity is regulated and controlled by homeostasis, which is the balance of multiple opposing influences. The environmental effects finally guide the self-organized structure. The living systems are open, dynamic structures performing random, stationary, stochastic, self-organizing processes. The self-organizing procedure is defined by the spatial-temporal fractal structure, which is self-similar both in space and time. The system’s complexity appears in its energetics, which tries the most efficient use of the available energies;for that, it organizes various well-connected networks. The controller of environmental relations is the Darwinian selection on a long-time scale. The energetics optimize the healthy processes tuned to the highest efficacy and minimal loss (minimalization of the entropy production). The organism is built up by morphogenetic rules and develops various networks from the genetic level to the organism. The networks have intensive crosstalk and form a balance in the Nash equilibrium, which is the homeostatic state in healthy conditions. Homeostasis may be described as a Nash equilibrium, which ensures energy distribution in a “democratic” way regarding the functions of the parts in the complete system. Cancer radically changes the network system in the organism. Cancer is a network disease. Deviation from healthy networking appears at every level, from genetic (molecular) to cells, tissues, organs, and organisms. The strong proliferation of malignant tissue is the origin of most of the life-threatening processes. The weak side of cancer development is the change of complex information networking in the system, being vulnerable to immune attacks. Cancer cells are masters of adaptation and evade immune surveillance. This hiding process can be broken by electromagnetic nonionizing radiation, for which the malignant structure has no adaptation strategy. Our objective is to review the different sides of living complexity and use the knowledge to fight against cancer. 展开更多
关键词 complexity Networks SMALL-WORLD Genetic Mutations SeLF-ORGANIZING Self-Symmetry energetic Balance entropy Nash equilibrium Games evolution CANCeR Therapy
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Data complexity-based batch sanitization method against poison in distributed learning
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作者 Silv Wang Kai Fan +2 位作者 Kuan Zhang Hui Li Yintang Yang 《Digital Communications and Networks》 SCIE CSCD 2024年第2期416-428,共13页
The security of Federated Learning(FL)/Distributed Machine Learning(DML)is gravely threatened by data poisoning attacks,which destroy the usability of the model by contaminating training samples,so such attacks are ca... The security of Federated Learning(FL)/Distributed Machine Learning(DML)is gravely threatened by data poisoning attacks,which destroy the usability of the model by contaminating training samples,so such attacks are called causative availability indiscriminate attacks.Facing the problem that existing data sanitization methods are hard to apply to real-time applications due to their tedious process and heavy computations,we propose a new supervised batch detection method for poison,which can fleetly sanitize the training dataset before the local model training.We design a training dataset generation method that helps to enhance accuracy and uses data complexity features to train a detection model,which will be used in an efficient batch hierarchical detection process.Our model stockpiles knowledge about poison,which can be expanded by retraining to adapt to new attacks.Being neither attack-specific nor scenario-specific,our method is applicable to FL/DML or other online or offline scenarios. 展开更多
关键词 Distributed machine learning security Federated learning Data poisoning attacks Data sanitization Batch detection Data complexity
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A Comparative Analysis of Syntactic Complexity in Applied Linguistics Abstracts Written by Chinese Novice Writers and Native English Advanced Writers
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作者 Mingming Zhao Tianshuang Ge 《Open Journal of Applied Sciences》 2024年第1期1-26,共26页
The rhetorical structure of abstracts has been a widely discussed topic, as it can greatly enhance the abstract writing skills of second-language writers. This study aims to provide guidance on the syntactic features ... The rhetorical structure of abstracts has been a widely discussed topic, as it can greatly enhance the abstract writing skills of second-language writers. This study aims to provide guidance on the syntactic features that L2 learners can employ, as well as suggest which features they should focus on in English academic writing. To achieve this, all samples were analyzed for rhetorical moves using Hyland’s five-rhetorical move model. Additionally, all sentences were evaluated for syntactic complexity, considering measures such as global, clausal and phrasal complexity. The findings reveal that expert writers exhibit a more balanced use of syntactic complexity across moves, effectively fulfilling the rhetorical objectives of abstracts. On the other hand, MA students tend to rely excessively on embedded structures and dependent clauses in an attempt to increase complexity. The implications of these findings for academic writing research, pedagogy, and assessment are thoroughly discussed. 展开更多
关键词 Syntactic complexity Rhetorical Functions Research Article Abstract L2 Academic Writing
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Analysis of the Role of Syntactic Complexity in Students’ Reading Comprehension: A Teacher’s Perspective
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作者 Ma.Leticia Jose C.Basilan Daniel Reds G.De Sagun 《Journal of Contemporary Educational Research》 2024年第8期253-264,共12页
This study examines the role of the syntactic complexity of the text in the reading comprehension skills of students.Utilizing the qualitative method of research,this paper used structured interview questions as the m... This study examines the role of the syntactic complexity of the text in the reading comprehension skills of students.Utilizing the qualitative method of research,this paper used structured interview questions as the main data-gathering instruments.English language teachers from Coral na Munti National High School were selected as the respondents of the study.Finding of the study suggests that the syntactic complexity of the text affects the reading comprehension of the students.Students found it challenging to understand the message that the author conveyed if he or she used a large number of phrases and clauses in one sentence.Furthermore,the complex sentence syntactic structure was deemed the most challenging for students to understand.To overcome said challenges in comprehending text,various reading intervention programs were utilized by teachers.These interventions include focused or targeted instruction and the implementation of the Project Dear,suggested by the Department of Education.These programs were proven to help students improve their comprehension as well as their knowledge in syntactical structure of sentences.This study underscores the importance of selecting appropriate reading materials and implementing suitable reading intervention programs to enhance students’comprehension skills. 展开更多
关键词 Reading comprehension Syntactic complexity Reading intervention program Syntactic structure
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牛病毒性腹泻病毒E2蛋白的真核表达及间接ELISA抗体检测方法的建立 被引量:1
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作者 刘丹 黄小洁 +5 位作者 吴华伟 孙淼 陈延飞 秦义娴 侯力丹 薛麒 《动物医学进展》 北大核心 2024年第4期51-56,共6页
为建立检测牛病毒性腹泻病毒(Bovine viral diarrhea virus,BVDV)抗体的间接ELISA方法,利用昆虫细胞真核表达系统成功表达E2蛋白,将纯化后的E2蛋白作为包被抗原,用方阵滴定方法对影响ELISA的各个因素进行优化,并进行特异性、敏感性和重... 为建立检测牛病毒性腹泻病毒(Bovine viral diarrhea virus,BVDV)抗体的间接ELISA方法,利用昆虫细胞真核表达系统成功表达E2蛋白,将纯化后的E2蛋白作为包被抗原,用方阵滴定方法对影响ELISA的各个因素进行优化,并进行特异性、敏感性和重复性试验。结果表明,在昆虫细胞中表达了BVDV E2蛋白,Western blot证实目的蛋白可与BVDV阳性血清发生特异性反应。ELISA优化结果显示,E2蛋白最佳包被浓度为0.5μg/mL,最佳封闭液为1%明胶,最佳血清稀释度为1∶400,最佳血清作用方式为37℃作用30 min,酶标抗体的最佳作用方式为1∶2000稀释、37℃作用30 min,最佳底物作用时间为室温20 min,阳性临界值为OD 450≥0.423。与血清中和试验法进行比较,总符合率为97.8%,板内和板间重复性试验的变异系数均小于10%。该方法与牛常见病毒阳性血清均无交叉反应。说明建立的间接ELISA抗体检测方法特异性、敏感性和重复性良好,可用于大批量样本的临床检测和流行病学研究。 展开更多
关键词 牛病毒性腹泻病毒 e2蛋白 间接eLISA 抗体检测
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人参皂苷Rg3通过调控E2F1对人胃癌SGC-7901细胞生物行为学的影响 被引量:1
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作者 王建新 王琳茜 +3 位作者 朱波 时沛 孙义长 韩立 《中国药理学通报》 CAS CSCD 北大核心 2024年第5期853-858,共6页
目的探究人参皂苷Rg3通过调控E2F1对人胃癌SGC-7901细胞生物行为学的影响。方法MTT测定不同浓度人参皂苷Rg3(0、80、160、320μmol·L^(-1))对细胞增殖影响;流式细胞术测定不同浓度人参皂苷Rg3对细胞凋亡的影响;划痕愈合实验和Trans... 目的探究人参皂苷Rg3通过调控E2F1对人胃癌SGC-7901细胞生物行为学的影响。方法MTT测定不同浓度人参皂苷Rg3(0、80、160、320μmol·L^(-1))对细胞增殖影响;流式细胞术测定不同浓度人参皂苷Rg3对细胞凋亡的影响;划痕愈合实验和Transwell实验测定不同浓度人参皂苷Rg3对细胞迁移及侵袭的影响;Western blot测定不同浓度人参皂苷Rg3对E2F1、MMP-2、MMP-9、BCL-2、Bax表达的影响。结果80、160、320μmol·L^(-1)人参皂苷Rg3组细胞存活率与空白对照组比较明显降低,且呈浓度依赖性(P<0.05)。80、160、320μmol·L^(-1)人参皂苷Rg3组细胞凋亡率与空白对照组比较明显增加,且呈浓度依赖性(P<0.05)。80、160、320μmol·L^(-1)人参皂苷Rg3组细胞迁移数目与空白对照组比较明显降低,且呈浓度依赖性(P<0.05)。80、160、320μmol·L^(-1)人参皂苷Rg3组细胞侵袭数目与空白对照组比较明显降低,且呈浓度依赖性(P<0.05)。80、160、320μmol·L^(-1)人参皂苷Rg3组E2F1 mRNA与E2F1蛋白表达量相较空白对照组明显减少且,呈浓度依赖性(P<0.05)。80、160、320μmol·L^(-1)人参皂苷Rg3组细胞中MMP-2、MMP-9、BCL-2蛋白表达量与空白对照组比较明显降低,BCL-2与空白对照组比较明显升高,且呈浓度依赖性(P<0.05)。结论人参皂苷Rg3能降低胃癌SGC-7901细胞增殖能力,抑制细胞迁移及侵袭能力,同时还促进SGC-7901细胞凋亡,且具有浓度依赖性,其作用机制可能通过E2F1因子下调MMP-2、MMP-9、BCL-2表达,上调Bax表达有关。 展开更多
关键词 人参皂苷RG3 e2F1 胃癌 增殖 迁移和侵袭 凋亡
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载脂蛋白E联合临床相关指标预测阿尔兹海默病模型的建立与验证
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作者 吴天晨 杨卉 +1 位作者 梁艳 杨永刚 《中国卫生统计》 CSCD 北大核心 2024年第1期23-27,共5页
目的 以载脂蛋白E(ApoE)为基础,结合阿尔茨海默病发病危险因素及临床常见指标,构建阿尔兹海默病发病风险的临床预测模型。方法 从南京市中医院大数据平台中,检索时间为2019年1月至2021年1月两年时间内,阿尔兹海默病患者61例,模糊匹配健... 目的 以载脂蛋白E(ApoE)为基础,结合阿尔茨海默病发病危险因素及临床常见指标,构建阿尔兹海默病发病风险的临床预测模型。方法 从南京市中医院大数据平台中,检索时间为2019年1月至2021年1月两年时间内,阿尔兹海默病患者61例,模糊匹配健康体检者111例。利用LASSO回归筛选危险因素,构建logistic回归预测模型,10折交叉进行区分度验证,bootstrap法进行校准度验证,临床决策曲线评判预测模型的临床指导性,最后以列线图可视化呈现临床预测模型。结果 筛选出12个变量,最终纳入4个危险因素:年龄、游离三碘甲状腺素(FT3)、性别、ApoE。全样本ROC曲线下面积为0.879,10折交叉9次验证后ROC曲线下平均面积为0.864;采用Bootstrap法抽样及Hosmer-Lemeshow校准度检验,结果χ^(2)=6.496,P=0.592>0.05。临床决策曲线阈值概率区间为1%~88.6%。结论 利用年龄、游离三碘甲状腺素、性别、 ApoE构建的临床预测模型对患者进行个体化评估,可以预警阿尔兹海默病,开展早期预防干预,减缓该病的发生发展。 展开更多
关键词 痴呆 阿尔兹海默病 预测模型 载脂蛋白e
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创伤性颅脑损伤患者血清锌、维生素E与病情程度及预后的关系
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作者 张春满 梁晨 +4 位作者 曹慧琴 杨延庆 胡国良 折刚刚 韦玮 《疑难病杂志》 CAS 2024年第8期902-907,共6页
目的探讨创伤性颅脑损伤(TBI)患者血清锌、维生素E与病情程度及预后的关系。方法选取2020年1月—2023年8月延安大学附属医院神经外科收治的TBI患者135例为TBI组,根据格拉斯哥昏迷量表(GCS)评分分为轻度TBI亚组(GCS评分13~15分,54例)、中... 目的探讨创伤性颅脑损伤(TBI)患者血清锌、维生素E与病情程度及预后的关系。方法选取2020年1月—2023年8月延安大学附属医院神经外科收治的TBI患者135例为TBI组,根据格拉斯哥昏迷量表(GCS)评分分为轻度TBI亚组(GCS评分13~15分,54例)、中度TBI亚组(GCS评分9~12分,45例)、重度TBI亚组(GCS评分3~8分,36例),再根据患者90 d预后分为不良预后亚组(35例)和良好预后亚组(100例),另选同期体检健康者100例为健康对照组。采用锌比色法与高效液相色谱法检测血清锌、维生素E水平;比较TBI组与健康对照组和不同病情程度TBI患者血清锌、维生素E水平;采用Spearman相关系数分析血清锌、维生素E水平与GCS评分的相关性;多因素Logistic回归分析影响TBI患者不良预后的因素;绘制受试者工作特征(ROC)曲线评价血清锌、维生素E水平对TBI患者90 d死亡的预测价值。结果与健康对照组比较,TBI组血清锌、维生素E水平降低(t/P=10.836/<0.001、10.160/<0.001);不同病情程度TBI患者血清锌、维生素E水平比较,轻度TBI亚组>中度TBI亚组>重度TBI亚组(F/P=41.858/<0.001、104.911/<0.001)。135例TBI患者90 d不良预后发生率为25.93%(35/135);血清锌、维生素E水平与GCS评分均呈正相关(r s=0.709/<0.001、0.698/<0.001);GCS评分增加、血清锌升高、维生素E升高为TBI患者不良预后的独立保护因素[OR(95%CI)=0.809(0.690~0.950)、0.706(0.590~0.845)、0.726(0.599~0.880)],基底池异常、中线移位≥5 mm为TBI患者不良预后的独立危险因素[OR(95%CI)=5.989(1.492~24.036)、3.378(1.045~10.922)];血清锌、维生素E水平及二者联合预测TBI患者不良预后的AUC分别为0.783、0.774、0.856,二者联合的AUC大于血清锌、维生素E水平单独预测(Z/P=2.580/0.010、2.727/0.006)。结论TBI患者血清锌、维生素E水平降低,与病情程度加重和预后不良有关,二者联合对TBI患者不良预后有良好的预测价值。 展开更多
关键词 创伤性颅脑损伤 血清锌 维生素e 病情程度 预后
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LncRNA ZEB1-AS1和LncRNA SOX2OT在糖尿病肾病患者中的表达及与肾功能的相关性研究 被引量:1
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作者 何德娇 凌娜 +3 位作者 李正翔 乔玲 张淼淼 夏露 《疑难病杂志》 CAS 2024年第7期809-813,共5页
目的探究长链非编码RNA锌指E盒结合同源盒蛋白1反义链1(LncRNA ZEB1-AS1)和长链非编码RNA性别决定相关基因簇2重叠转录本(LncRNA SOX2OT)在糖尿病肾病(DN)患者中的表达及与肾功能的相关性。方法选取于2021年11月—2023年12月在武汉大学... 目的探究长链非编码RNA锌指E盒结合同源盒蛋白1反义链1(LncRNA ZEB1-AS1)和长链非编码RNA性别决定相关基因簇2重叠转录本(LncRNA SOX2OT)在糖尿病肾病(DN)患者中的表达及与肾功能的相关性。方法选取于2021年11月—2023年12月在武汉大学人民医院肾内科收治的DN患者106例为DN组,并根据24 h尿蛋白定量(24 h Upro)水平分为正常蛋白尿亚组43例(<30 mg)、微量蛋白尿亚组39例(30~<300 mg)、大量蛋白尿亚组24例(≥300 mg),另选取同期医院单纯糖尿病患者106例作对照组,检测患者血清LncRNA ZEB1-AS1、LncRNA SOX2OT水平;Pearson法分析LncRNA ZEB1-AS1和LncRNA SOX2OT与肾功能指标的相关性;Logistic分析影响DN患者肾功能损伤的因素。结果DN组血清LncRNA ZEB1-AS1、LncRNA SOX2OT水平低于对照组(t=11.471、10.257,P均<0.001)。血清LncRNA ZEB1-AS1、LncRNA SOX2OT比较,正常尿蛋白亚组>微量尿蛋白亚组>大量尿蛋白亚组(F=58.720、117.722,P均<0.001),BUN、SCr、UA水平比较,正常尿蛋白亚组<微量尿蛋白亚组<大量尿蛋白亚组,差异均有统计学意义(F=122.493、595.589、53.178,P均<0.001);LncRNA ZEB1-AS1、LncRNA SOX2OT分别与BUN、SCr、UA呈负相关(r=-0.487、-0.498、-0.521,-0.527、-0.515、-0.534,P均<0.001);Logistic回归分析显示,糖尿病病程长及高BUN、SCr、UA水平是影响DN患者肾功能损伤的危险因素[OR(95%CI)=1.672(1.128~2.479)、2.839(1.534~5.253)、2.754(1.512~5.017)、2.693(1.464~4.954)],高LncRNA ZEB1-AS1、LncRNA SOX2OT是保护因素[OR(95%CI)=0.875(0.798~0.959)、0.898(0.832~0.969)]。结论血清LncRNA ZEB1-AS1、LncRNA SOX2OT水平与DN患者肾功能有关,可能是评估DN患者肾功能的潜在指标。 展开更多
关键词 糖尿病肾病 长链非编码RNA锌指e盒结合同源盒蛋白1反义链1 长链非编码RNA性别决定相关基因簇2重叠转录本 肾功能 相关性
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栀子苷调节PI3K/AKT/mTOR信号通路在动脉粥样硬化形成过程中对Th17/Treg功能的影响 被引量:2
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作者 吴佳 吴进 +1 位作者 肖凯 凌超 《中西医结合心脑血管病杂志》 2024年第5期817-822,共6页
目的:观察栀子苷对载脂蛋白E缺乏(ApoE^(-/-))小鼠Th17/调节性T(Treg)细胞失衡的影响及其作用机制。方法:将50只纯合子ApoE^(-/-)雌性小鼠随机分为对照组、模型组和栀子苷低剂量组、栀子苷中剂量组、栀子苷高剂量组。对照组小鼠喂养普... 目的:观察栀子苷对载脂蛋白E缺乏(ApoE^(-/-))小鼠Th17/调节性T(Treg)细胞失衡的影响及其作用机制。方法:将50只纯合子ApoE^(-/-)雌性小鼠随机分为对照组、模型组和栀子苷低剂量组、栀子苷中剂量组、栀子苷高剂量组。对照组小鼠喂养普通饲料,模型组和栀子苷组小鼠喂养高脂饲料。从第8周开始,栀子苷各剂量组每日灌胃栀子苷(25、50、100 mg/kg),连续8周。试验结束时,采用油红O染色评估主动脉及其根部动脉粥样硬化(AS)病变面积比。采用定量逆转录聚合酶链式反应(RT-PCR)分析主动脉组织肿瘤坏死因子-α(TNF-α)、白细胞介素(IL)-6、IL-17A和IL-10 mRNA表达;采用流式细胞仪分析脾脏中Th17和Treg细胞百分比;蛋白免疫印迹法(Western Blot)检测主动脉组织磷脂酰肌醇3-激酶(PI3K)/蛋白激酶B(AKT)/哺乳动物雷帕霉素靶蛋白(mTOR)信号通路相关蛋白表达。结果:油红O染色病变显示,栀子苷中剂量组、栀子苷高剂量组病变百分比低于模型组(P<0.05)。与对照组比较,模型组主动脉TNF-α、IL-6和IL-17A mRNA表达水平升高(P<0.05);栀子苷各剂量组主动脉TNF-α、IL-6和IL-17A mRNA表达水平降低(P<0.05)。与对照组比较,模型组主动脉抗炎细胞因子IL-10 mRNA表达水平降低(P<0.05);栀子苷各剂量组主动脉抗炎细胞因子IL-10 mRNA表达水平升高(P<0.05)。与对照组比较,模型组小鼠脾脏中Th17细胞百分比升高,Treg细胞百分比降低(P<0.05)。栀子苷处理恢复了AS小鼠Th17和Treg细胞的平衡。栀子苷抑制PI3K的表达及AKT和mTOR的磷酸化,MHY1485(mTOR活化剂)减弱了栀子苷对T细胞分化的影响。结论:栀子苷抗AS作用机制可能与抑制PI3K/AKT/mTOR信号引起的Treg细胞增多和Th17细胞减少有关。 展开更多
关键词 动脉粥样硬化 栀子苷 载脂蛋白e缺乏 Th17/调节性T细胞 磷脂酰肌醇3-激酶(PI3K)/蛋白激酶B(AKT)/哺乳动物雷帕霉素靶蛋白(mTOR)信号通路 小鼠 实验研究
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TCT联合HPV E6/E7 mRNA检测对子宫颈癌前早期病变诊断价值的meta分析 被引量:1
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作者 陈君君 郭培培 +4 位作者 路红春 梁宇鸣 沈婧 刘腾 王润洁 《齐齐哈尔医学院学报》 2024年第2期175-182,共8页
目的系统评价液基薄层细胞学检查(thinprep cytologic test,TCT)联合人乳头瘤病毒(human papillomavirus,HPV)E6/E7 mRNA检测对子宫颈癌前早期病变的诊断价值。方法计算机检索CNKI、维普数据库(VIP)、万方数据库、中国生物医学文献数据... 目的系统评价液基薄层细胞学检查(thinprep cytologic test,TCT)联合人乳头瘤病毒(human papillomavirus,HPV)E6/E7 mRNA检测对子宫颈癌前早期病变的诊断价值。方法计算机检索CNKI、维普数据库(VIP)、万方数据库、中国生物医学文献数据库(CBM)、PubMed、The Cochrane Library、Embase、Science数据库中关于TCT联合HPV E6/E7 mRNA检测诊断子宫颈癌前早期病变的相关文献,检索时限均为建库至2023年1月。由2位评价员按纳入标准和排除标准各自筛选文献、提取资料和评价质量后,应用RevMan 5.3、Stata 15.0、Meta-Disc 1.4统计软件分析TCT联合HPV E6/E7 mRNA检测对子宫颈癌前早期病变的诊断价值,计算诊断敏感性的Spearman相关系数验证阈值效应,进行异质性检验;计算合并敏感性、特异性、阳性似然比和阴性似然比、诊断比值比、SROC曲线下面积。结果共纳入15篇文献,合计6620例患者。Meta分析显示,合并敏感性、特异性、阳性似然比、阴性似然比、诊断比值比均不存在明显异质性(I^(2)=31.6%、14.2%、10.9%、16.7%、17.2%,P=0.1162、0.2947、0.3311、0.2663、0.2610),采用固定效应模型进行统计分析,其结果分别为0.95(95%CI:0.94~0.96)、0.87(95%CI:0.86~0.88)、6.86(95%CI:6.26~7.51)、0.06(95%CI:0.05~0.07)、113.23(95%CI:86.44~148.31)。SROC曲线下面积为0.9414。结论TCT联合HPV E6/E7 mRNA检测对诊断子宫颈癌前早期病变有重要价值。 展开更多
关键词 TCT HPV e6/e7 mRNA 子宫颈癌前早期病变 诊断
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慢性荨麻疹患者血清PAF、抗-CCD IgE水平变化及临床意义分析
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作者 李椅云 毕超 +2 位作者 梁艳华 廖子青 梁碧华 《中国卫生标准管理》 2024年第18期75-78,共4页
目的探讨慢性荨麻疹患者血清血小板活化因子(platelet activating factor,PAF)、抗交叉反应性糖类决定簇免疫球蛋白E(anti-cross reactive carbohydrate determinants immunoglobulin E,抗-CCD IgE)水平变化及临床意义,为临床诊断及病... 目的探讨慢性荨麻疹患者血清血小板活化因子(platelet activating factor,PAF)、抗交叉反应性糖类决定簇免疫球蛋白E(anti-cross reactive carbohydrate determinants immunoglobulin E,抗-CCD IgE)水平变化及临床意义,为临床诊断及病情程度、预后评估提供参考依据。方法选取2021年5月—2023年5月广州市皮肤病防治所收治的100例慢性荨麻疹患者,根据荨麻疹活动评分分为轻度组(n=41)、中度组(n=35)和重度组(n=24)。采集患者空腹静脉血,通过酶联免疫吸附法测定血清PAF水平,通过斑点免疫印迹法测定抗-CCD IgE、过敏原特异性免疫球蛋白E(specific immunoglobulin E,sIgE)。比较不同病情程度慢性荨麻疹患者血清PAF水平,分析慢性荨麻疹患者血清PAF水平与荨麻疹活动评分相关性,比较不同临床特征慢性荨麻疹患者抗-CCD IgE阳性率。结果中度组、重度组患者血清PAF水平高于轻度组,重度组患者血清PAF水平高于中度组,差异有统计学意义(P<0.05)。Pearson相关分析结果显示,慢性荨麻疹患者血清PAF水平与荨麻疹活动评分呈正相关性(r=0.491,P<0.001)。年龄≥45岁、重度病情、sIgE阳性患者抗-CCD IgE阳性率高于年龄<45岁、轻度病情、sIgE阴性患者,差异有统计学意义(P<0.05)。抗-CCD IgE阳性患者中过敏原阳性最高的为尘螨组合(66.67%),其次为蟑螂、螃蟹、普通豚草,分别为55.56%、44.44%和44.44%。结论慢性荨麻疹患者血清PAF水平与病情密切相关,且抗-CCD IgE水平与sIgE水平有一定关系,抗-CCD IgE阳性表达情况对sIgE试验存在一定干扰,分析试验结果时应考虑抗-CCD IgE的影响。 展开更多
关键词 慢性荨麻疹 抗交叉反应性糖类决定簇免疫球蛋白e 血小板活化因子 免疫球蛋白e 水平变化 临床意义
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血清维生素E水平与变应性鼻炎关系的研究进展
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作者 李欣 吕芸 +3 位作者 张玥钰 彭珍 逯英杰 何健 《中国耳鼻咽喉颅底外科杂志》 CAS CSCD 2024年第2期54-59,共6页
变应性鼻炎(AR)是由于辅助性T细胞2(Th2)淋巴细胞过度活化而引起的一种鼻腔黏膜非感染性炎症型的疾病,是耳鼻咽喉科最常见的慢性难治性疾病。由于近年来患病率明显上升,越来越多的学者开始关注AR。维生素E在临床实践中被广泛用于预防和... 变应性鼻炎(AR)是由于辅助性T细胞2(Th2)淋巴细胞过度活化而引起的一种鼻腔黏膜非感染性炎症型的疾病,是耳鼻咽喉科最常见的慢性难治性疾病。由于近年来患病率明显上升,越来越多的学者开始关注AR。维生素E在临床实践中被广泛用于预防和治疗不同的疾病,有基础科学研究发现维生素E与AR有着重要的联系,它可以减少免疫变态反应的发生。本文通过对维生素E的代谢、作用机制及其与AR之间的关系的最新研究进展进行综述,旨在为维生素E在AR中的应用提供一定的理论指导。 展开更多
关键词 变应性鼻炎 维生素e 免疫反应
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人参皂苷Rg1通过miR-144/Nrf2/ARE通路对糖尿病大鼠肝损伤的影响 被引量:1
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作者 郭学军 陈苑 高欣 《中国老年学杂志》 CAS 北大核心 2024年第1期116-121,共6页
目的探究人参皂苷(G)-Rg1通过微小RNA(miR)-144/核因子E2相关因子(Nrf)2/抗氧化反应元件(ARE)通路对糖尿病(DM)大鼠肝损伤的影响。方法将大鼠随机分成control组、模型(model)组、二甲双胍(MET)组(100 mg/kg MET)组、G-Rg1-L(10 mg/kg G-... 目的探究人参皂苷(G)-Rg1通过微小RNA(miR)-144/核因子E2相关因子(Nrf)2/抗氧化反应元件(ARE)通路对糖尿病(DM)大鼠肝损伤的影响。方法将大鼠随机分成control组、模型(model)组、二甲双胍(MET)组(100 mg/kg MET)组、G-Rg1-L(10 mg/kg G-Rg1)组、G-Rg1-H(30 mg/kg G-Rg1)组、G-Rg1-H+mimics NC组、G-Rg1-H+miR-144 mimics组、G-Rg1-H+miR-144 mimics+Nrf2激活剂(Hesperin组(10 mg/kg Hesperin)各10只;除control组外,其余组通过高脂高糖饲料喂养及链脲佐菌素(STZ)腹腔注射构建DM模型,并灌胃相应剂量MET或G-Rg1,尾静脉注射相应剂量mimics NC、miR-144 mimics慢病毒液,腹腔注射相应剂量Hesperin,control组、model组灌胃、尾静脉及腹腔注射等剂量生理盐水,共为期8 w。血糖测试仪及全自动生化分析仪检测血糖、肝功能指标;丙二醛(MDA)、超氧化物歧化酶(SOD)试剂盒检测血清中二者含量;苏木素-伊红(HE)及过碘酸-雪夫(PAS)染色观察肝组织病理形态及糖原含量变化;实时荧光定量-聚合酶链反应(RT-qPCR)及Western印迹分析肝组织中miR-144、血红素加氧酶(HO)-1及Nrf2 mRNA及蛋白表达;双荧光素酶报告基因实验验证miR-144与Nrf2的靶向关系。结果与control组比,model组空腹血糖(FBG)、谷丙转氨酶(ALT)、谷草转氨酶(AST)、MDA水平、肝组织病理程度、miR-144表达显著增加,SOD含量、糖原数量、HO-1及Nrf2 mRNA及蛋白表达显著减少(P<0.05);与model组比,MET组、G-Rg1-L组、G-Rg1-H组FBG、ALT、AST、MDA水平、肝组织病理程度、miR-144表达显著减少,SOD含量、糖原数量、HO-1及Nrf2 mRNA及蛋白表达显著增加(P<0.05);MET组与G-Rg1-H组比较,上述指标无明显差异(P>0.05);与G-Rg1-H组比,G-Rg1-H+miR-144 mimics组FBG、ALT、AST、MDA水平、肝组织病理程度、miR-144表达显著增加,SOD含量、糖原数量、HO-1及Nrf2 mRNA及蛋白表达显著减少(P<0.05);与G-Rg1-H+miR-144 mimics组比,G-Rg1-H+miR-144 mimics+Hesperin组FBG、ALT、AST、MDA水平、肝组织病理程度、miR-144表达显著减少,SOD含量、糖原数量、HO-1及Nrf2 mRNA及蛋白表达显著增加(P<0.05);双荧光素酶报告基因检测结果显示,Nrf2是miR-144的潜在靶基因。结论G-Rg1通过抑制miR-144表达来激活Nrf2/ARE通路,改善DM大鼠的肝损伤。 展开更多
关键词 微小RNA-144 核因子e2相关因子2 抗氧化反应元件 糖尿病 肝损伤
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三酰甘油与APOE基因多态性在短暂性脑缺血发作患者发生急性脑梗死中的交互作用研究 被引量:1
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作者 陈爱莲 马小宏 张雷 《临床误诊误治》 CAS 2024年第5期29-34,共6页
目的探讨三酰甘油(TG)与载脂蛋白E(APOE)基因多态性在短暂性脑缺血发作(TIA)患者发生急性脑梗死中的交互作用。方法对2019年1月—2021年6月349例TIA进行6个月随访,根据是否发生急性脑梗死分为发生组、未发生组,比较2组一般资料、总胆固... 目的探讨三酰甘油(TG)与载脂蛋白E(APOE)基因多态性在短暂性脑缺血发作(TIA)患者发生急性脑梗死中的交互作用。方法对2019年1月—2021年6月349例TIA进行6个月随访,根据是否发生急性脑梗死分为发生组、未发生组,比较2组一般资料、总胆固醇(TC)、低密度脂蛋白胆固醇(LDL-C)、高密度脂蛋白胆固醇(HDL-C)、TG、APOE基因多态性,并比较不同TG水平患者APOE基因多态性,使用多因素Logistic回归分析TIA发生急性脑梗死的影响因素,使用交互作用系数γ分析TG与APOE基因多态性的交互作用。结果随访6个月,共45例(12.89%)TIA患者发生急性脑梗死。发生组TG高于未发生组(P<0.01)。发生组及TG升高患者E3/3基因型、ε3等位基因频率分别低于未发生组及TG正常患者,E3/4基因型、ε4等位基因频率分别高于未发生组及TG正常患者(P<0.05)。校正TIA持续时间、TIA发作频率后,TG、APOE基因型E3/3、E3/4及等位基因ε4仍是TIA发生急性脑梗死的独立影响因素(P<0.01)。TG升高与APOE基因型E3/4在TIA发生急性脑梗死中呈正向交互作用,且交互作用符合次相乘模型。结论TG升高与APOE基因型E3/4在TIA发生急性脑梗死中呈正向交互作用,且交互作用符合次相乘模型,TG升高可增强APOE基因型E3/4对TIA发生急性脑梗死的易感性。 展开更多
关键词 短暂性脑缺血发作 急性脑梗死 三酰甘油 载脂蛋白e APOe基因多态性 影响因素 LOGISTIC回归分析 交互作用
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益胃解毒方治疗慢性萎缩性胃炎的效果及对Cyclin E、Th17/Treg比值的影响分析
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作者 王立业 张艳彬 +4 位作者 朱亚楠 常玉娟 李晶 柳康康 朱玉光 《检验医学与临床》 CAS 2024年第18期2728-2732,共5页
目的分析益胃解毒方治疗慢性萎缩性胃炎中的效果及对细胞周期蛋白E(Cyclin E)水平、辅助性T细胞(Th17)/调节性T细胞(Treg)比值的影响。方法选取2019年6月至2022年6月在河北省石家庄市中医院确诊的150例慢性萎缩性胃炎患者作为研究对象,... 目的分析益胃解毒方治疗慢性萎缩性胃炎中的效果及对细胞周期蛋白E(Cyclin E)水平、辅助性T细胞(Th17)/调节性T细胞(Treg)比值的影响。方法选取2019年6月至2022年6月在河北省石家庄市中医院确诊的150例慢性萎缩性胃炎患者作为研究对象,按照随机数字表法分为益胃解毒方组、六君子汤组、益胃解毒方+六君子汤组,每组50例。益胃解毒方组使用益胃解毒方治疗,六君子汤组使用六君子汤治疗,益胃解毒方+六君子汤组使用益胃解毒方联合六君子汤治疗,均连续治疗24周。比较3组治疗效果、中医证候积分、Cyclin E水平、Th17/Treg比值、不良反应发生情况。结果益胃解毒方组治疗总有效率高于六君子汤组和益胃解毒方+六君子汤组,且益胃解毒方+六君子汤组高于六君子汤组,差异均有统计学意义(P<0.05)。治疗后3组各项中医证候积分低于治疗前,差异均有统计学意义(P<0.05)。治疗后益胃解毒方组各项中医证候积分低于六君子汤组和益胃解毒方+六君子汤组,且益胃解毒方+六君子汤组低于六君子汤组,差异均有统计学意义(P<0.05)。治疗后3组Cyclin E水平、Th17/Treg比值均低于治疗前,差异均有统计学意义(P<0.05)。治疗后益胃解毒方组Cyclin E水平、Th17/Treg比值低于六君子汤组和益胃解毒方+六君子汤组,且益胃解毒方+六君子汤组低于六君子汤组,差异均有统计学意义(P<0.05)。益胃解毒方组总不良反应发生率低于六君子汤组和益胃解毒方+六君子汤组,且益胃解毒方+六君子汤组低于六君子汤组,差异均有统计学意义(P<0.05)。结论益胃解毒方治疗慢性萎缩性胃炎效果显著,不仅能够改善患者临床症状,调节Cyclin E、Th17/Treg表达,还能减少不良反应发生,值得临床推广应用。 展开更多
关键词 胃癌前病变 益胃解毒方 细胞周期蛋白e 辅助性T细胞 调节性T细胞
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