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An intelligent prediction model of epidemic characters based on multi-feature

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CAAI Transactions on Intelligence Technology 2024年第3期9卷 595-607页

作者： Xiaoying Wang Chunmei Li Yilei Wang Lin Yin Qilin Zhou rui zheng Qingwu Wu Yuqi Zhou Min Dai Information Center Third Affiliated Hospital of Sun Yat‐sen UniversityGuangzhouChina School of Computer Science Qufu Normal UniversityRizhaoChina Department of Allergy Third Affiliated Hospital of Sun Yat‐sen UniversityGuangzhou China 4Department of Otorhinolaryngology‐Head and Neck Surgery Third Affiliated Hospital of Sun Yat‐sen UniversityGuangzhouChina Department of Pulmonary and Critical Care Medicine Third Affiliated Hospital of Sun Yat‐sen UniversityGuangzhouChina Department of Traditional Chinese Medicine Third Affiliated Hospital of Sun Yat‐sen UniversityGuangzhouChina

The epidemic characters of Omicron(***-scale transmission)are significantly different from the initial variants of *** data generated by large-scale transmission is important to predict the trend of epidemic ***,the re-sults of current prediction models are inaccurate since they are not closely combined with the actual situation of Omicron *** consequence,these inaccurate results have negative impacts on the process of the manufacturing and the service industry,for example,the production of masks and the recovery of the tourism *** authors have studied the epidemic characters in two ways,that is,investigation and ***,a large amount of data is collected by utilising the Baidu index and conduct questionnaire survey concerning epidemic ***,theβ-SEIDR model is established,where the population is classified as Susceptible,Exposed,Infected,Dead andβ-Recovered persons,to intelligently predict the epidemic characters of *** thatβ-Recovered persons denote that the Recovered persons may become Sus-ceptible persons with probabilityβ.The simulation results show that the model can accurately predict the epidemic characters.

关键词： artificial intelligence big data data analysis evaluation feature extraction intelligent information processing medical applications

Tunable Phase Structure of Side-chain Liquid Crystalline Polymers Enabled by Molecular Engineering of Dual Mesogenic Cores

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Chinese Journal of Polymer Science 2024年第10期42卷 1459-1469,I0009页

作者： Wen-Huan Yao Lan-Sheng Liu Jie Zhao Yan-Xia Wang An-Zhi Ma zheng-rui Ma Lan-Ying Zhang Ruo-Chen Lan College of Chemistry and Chemical Engineering Hunan UniversityChangsha410082China Key Laboratory of Eco-Functional Polymer Materials of the Ministry of Education Key Laboratory of Eco-Environmental Polymer Materials of Gansu ProvinceCollege of Chemistry and Chemical EngineeringNorthwest Normal UniversityLanzhou730070China Department of Materials Science and Engineering College of EngineeringPeking UniversityBeijing100871China Institute of Advanced Materials&Key Lab of Fluorine and Silicon for Energy Materials and Chemistry of Ministry of Education College of Chemistry and Chemical EngineeringJiangxi Normal UniversityNanchang330022China

A series of novel side-chain liquid crystalline(SCLC)copolymers were synthesized by attaching two distinct mesogenic units,namely a chiral cholesteryl-based monomer(M1)and an achiral biphenyl-based monomer(M2),to a poly(3-mercaptopropylmethylsiloxane)(PMMS)backbone via thiol-ene click *** influence of side chain composition on the self-assembly behavior and phase structures of these SCLC copolymers was systematically investigated using different *** indicate that three distinct liquid crystalline phases and four unique molecular configurations were identified within the polymer series,with the emergence of the liquid crystalline phase being a synergistic outcome of the two distinct side *** study underscores the critical influence of side chain dimensions,rigidity,and spatial volume on the self-assembly structures and phase characteristics of liquid crystalline polymers,providing valuable insights for the rational design and development of advanced functional materials with tailored properties.

关键词： Liquid crystalline copolymers Self-assembly Phase structure Chiral molar ratio

Influence of preheating treatments on cyanide content， nutritional composition， physicochemical properties， color and oxidative stability of flaxseed meal

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中国油脂 2024年

作者： ZHOU Junzhuo CHU Pengfei DONG Guimei PEI Xuechen HUANG Jiaqian zheng rui YIN Fawen ZHOU Dayong SKL of Marine Food Processing & Safety Control， National Engineering Research Center of Seafood， Collaborative Innovation Center of Seafood Deep Processing， Liaoning Province Key Laboratory for Marine Food Science and Technology， School of Food Science and Technology， Dalian Polytechnic University

This study aimed to investigate the effects of different preheating treatments （steaming， roasting and microwave） of flaxseed on cyanide content， nutritional composition， physicochemical properties， color and oxidative stability of flaxseed meal. The three preheating methods of flaxseed all significantly decreased the hydrocyanic acid （HCN） contents. By contrast， microwave was the most effective detoxification method. After 5 min of microwave treatment， the HCN content in flaxseed was reduced from 94.65 ± 1.68 mg/kg to 7.80 ± 0.57 mg/kg. In addition， the three preheating methods all significantly increased the polyphenol content， thiobarbituric acid reactive substances （TBARS）， peroxide value （POV）， and a*value， and slightly decreased polyunsaturated fatty acid （PUFA） contents， but significantly decreased total amino acid contents as well as L*， W*and b*values. Interestingly， the three preheating methods all improved the oxidative stability and color stability of flaxseed upon accelerated storage under 40 °C. Compared with steaming （120 ℃ for 20 min） and roasting （100 ℃ for 40 min）， microwave （560 W for 4 min） is recommended for decreasing cyanide content， as well as enhancing the flaxseed' stability and qualitative attributes.

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Causal genetic regulation of DNA replication on immune microenvironment in colorectal tumorigenesis: Evidenced by an integrated approach of trans-omics and GWAS

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The Journal of Biomedical Research 2024年第1期38卷 37-50页

作者： Sumeng Wang Silu Chen Huiqin Li Shuai Ben Tingyu Zhao rui zheng Meilin Wang Dongying Gu Lingxiang Liu Department of Oncology the First Affiliated Hospital of Nanjing Medical UniversityNanjingJiangsu 210029China Department of Environmental Genomics Jiangsu Key Laboratory of Cancer BiomarkersPrevention and TreatmentCollaborative Innovation Center for Cancer Personalized MedicineNanjing Medical UniversityNanjingJiangsu 211166China Department of Genetic Toxicology the Key Laboratory of Modern Toxicology of Ministry of EducationCenter for Global HealthSchool of Public HealthNanjing Medical UniversityNanjingJiangsu 211166China Department of Biostatistics Center for Global HealthSchool of Public HealthNanjing Medical UniversityNanjingJiangsu 211166China Department of Oncology Nanjing First HospitalNanjing Medical UniversityNanjingJiangsu 210006China.

The interplay between DNA replication stress and immune microenvironment alterations is known to play a crucial role in colorectal tumorigenesis,but a comprehensive understanding of their association with and relevant biomarkers involved in colorectal tumorigenesis is *** address this gap,we conducted a study aiming to investigate this association and identify relevant *** analyzed transcriptomic and proteomic profiles of 904 colorectal tumor tissues and 342 normal tissues to examine pathway enrichment,biological activity,and the immune ***,we evaluated genetic effects of single variants and genes on colorectal cancer susceptibility using data from genome-wide association studies(GWASs)involving both East Asian(7062 cases and 195745 controls)and European(24476 cases and 23073 controls)*** employed mediation analysis to infer the causal pathway,and applied multiplex immunofluorescence to visualize colocalized biomarkers in colorectal tumors and immune *** findings revealed that both DNA replication activity and the flap structure-specific endonuclease 1(FEN1)gene were significantly enriched in colorectal tumor tissues,compared with normal ***,a genetic variant rs4246215 G>T in FEN1 was associated with a decreased risk of colorectal cancer(odds ratio=0.94,95%confidence interval:0.90–0.97,P_(meta)=4.70×10^(-9)).Importantly,we identified basophils and eosinophils that both exhibited a significantly decreased infiltration in colorectal tumors,and were regulated by rs4246215 through causal pathways involving both FEN1 and DNA *** conclusion,this trans-omics incorporating GWAS data provides insights into a plausible pathway connecting DNA replication and immunity,expanding biological knowledge of colorectal tumorigenesis and therapeutic targets.

关键词： trans-omics DNA replication tumor immune microenvironment causal mediation colorectal tumorigenesis

Recombinant adeno-associated virus 8-mediated inhibition of microRNA let-7a ameliorates sclerosing cholangitis in a clinically relevant mouse model

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World Journal of Gastroenterology 2024年第5期30卷 471-484页

作者： Hui Hua Qian-Qian Zhao Miriam Nkesichi Kalagbor Guo-Zhi Yu Man Liu zheng-rui Bian Bei-Bei Zhang Qian Yu Yin-Hai Xu Ren-Xian Tang Kui-Yang zheng Chao Yan Jiangsu Key Laboratory of Immunity and Metabolism Department of Pathogenic Biology and ImmunologyNational Demonstration Center for Experimental Basic Medical Science EducationLaboratory of Infection and ImmunityXuzhou Medical UniversityXuzhou 221004Jiangsu ProvinceChina Department of Laboratory Medicine The Affiliated Hospital of Xuzhou Medical UniversityXuzhou 221002Jiangsu ProvinceChina

BACKGROUND Primary sclerosing cholangitis(PSC)is characterized by chronic inflammation and it predisposes to cholangiocarcinoma due to lack of effective treatment *** adeno-associated virus(rAAV)provides a promising platform for gene therapy on such kinds of diseases.A microRNA(miRNA)let-7a has been reported to be associated with the progress of PSC but the potential therapeutic implication of inhibition of let-7a on PSC has not been *** To investigate the therapeutic effects of inhibition of a miRNA let-7a transferred by recombinant adeno-associated virus 8(rAAV8)on a xenobiotic-induced mouse model of sclerosing *** A xenobiotic-induced mouse model of sclerosing cholangitis was induced by 0.1% 3,5-Diethoxycarbonyl-1,4-Dihydrocollidine(DDC)feeding for 2 wk or 6 wk.A single dose of rAAV8-mediated anti-let-7a-5p sponges or scramble control was injected in vivo into mice onset of DDC *** sacrifice,the liver and the serum were collected from each *** hepatobiliary injuries,hepatic inflammation and fibrosis were *** targets of let-7a-5p and downstream molecule NF-κB were detected using Western *** rAAV8-mediated anti-let-7a-5p sponges can depress the expression of let-7a-5p in mice after DDC feeding for 2 wk or 6 *** reduced expression of let-7a-5p can alleviate hepato-biliary injuries indicated by serum markers,and prevent the proliferation of cholangiocytes and biliary ***,inhibition of let-7a mediated by rAAV8 can increase the expression of potential target molecules such as suppressor of cytokine signaling 1 and Dectin1,which consequently inhibit of NF-κB-mediated hepatic *** Our study demonstrates that a rAAV8 vector designed for liver-specific inhibition of let-7a-5p can potently ameliorate symptoms in a xenobiotic-induced mouse model of sclerosing cholangitis,which provides a possible clinical translation of PSC of human.

关键词： Primary sclerosing cholangitis Recombinant adeno-associated virus 8 Let-7a-5p Therapeutic effects Inflammation

1933—1941年间中国香港粤语声片初兴考

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当代电影 2024年第7期 72-78页

作者：郑睿河北大学中央兰开夏传媒与创意学院

本文梳理了粤语声片从萌芽到繁荣的发展线索,勾勒中国香港电影产业初次兴盛的大致面貌,从市场需求、港口优势、人才来港等角度探讨其繁荣原因。这一时期粤语声片的初兴在制作质量提升与“港味美学”初步显现两个方面对中国香港电影后来... 详细信息

本文梳理了粤语声片从萌芽到繁荣的发展线索,勾勒中国香港电影产业初次兴盛的大致面貌,从市场需求、港口优势、人才来港等角度探讨其繁荣原因。这一时期粤语声片的初兴在制作质量提升与“港味美学”初步显现两个方面对中国香港电影后来的发展产生了深远影响。

关键词：粤语声片中国香港电影港味美学

联合稀疏自适应滤波的水声通信双向迭代均衡算法

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声学学报 2024年第5期49卷 1041-1050页

作者：刘璐郑睿哈尔滨工程大学水声技术全国重点实验室哈尔滨150001 工业和信息化部海洋信息获取与安全工信部重点实验室(哈尔滨工程大学) 哈尔滨150001 哈尔滨工程大学水声工程学院哈尔滨150001

针对具有稀疏性的水声信道,提出了一种参数自适应调整稀疏迭代最小二乘自适应算法。通过联合优化遗忘因子和稀疏约束参数,实现不同结构特性稀疏信道的自适应匹配,使均衡算法更快地收敛到稳态;针对常规均衡算法和单一方向Turbo判决反馈... 详细信息

针对具有稀疏性的水声信道,提出了一种参数自适应调整稀疏迭代最小二乘自适应算法。通过联合优化遗忘因子和稀疏约束参数,实现不同结构特性稀疏信道的自适应匹配,使均衡算法更快地收敛到稳态;针对常规均衡算法和单一方向Turbo判决反馈均衡器存在误差传递的问题,设计了一种稀疏自适应迭代最小二乘算法与双向迭代Turbo判决反馈均衡器相结合的均衡器结构,改善了常规均衡算法和单一方向Turbo判决反馈均衡器误差传递的问题,提高了在稀疏水声信道条件中自适应均衡器的收敛速度和均衡性能。仿真和试验数据结果表明,在稀疏水声信道中,基于参数自适应调整稀疏迭代最小二乘算法的双向Turbo均衡算法具有更快的收敛性能、更低的误比特率和更好的均衡效果。

关键词：信道均衡稀疏性 Turbo 接收机双向均衡

SMAD7 expression in CAR-T cells improves persistence and safety for solid tumors

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Cellular & Molecular Immunology 2024年第3期21卷 213-226页

作者： Sixin Liang rui zheng Baile Zuo Jia Li Yiyi Wang Yujie Han Hao Dong Xiaojuan Zhao Yiting Zhang Pengju Wang Ruotong Meng Lintao Jia Angang Yang Bo Yan State Key Laboratory of Holistic Integrative Management of Gastrointestinal Cancers Department of Biochemistry and Molecular BiologyFourth Military Medical UniversityXi’anShaanxi710032China School of Medicine Technology Xinxiang Medical UniversityXinxiangHenan453003China Department of Obstetrics and Gynecology Xijing Hospital of Fourth Military Medical UniversityXi’anShaanxi710032China College of Life Science Yan’an UniversityYan’anShaanxi716000China Department of Immunology Fourth Military Medical UniversityXi’anShaanxi710032China

Despite the tremendous progress of chimeric antigen receptor T(CAR-T)cell therapy in hematological malignancies,their application in solid tumors has been limited largely due to T-cell exhaustion in the tumor microenvironment(TME)and systemic toxicity caused by excessive cytokine *** a key regulator of the immunosuppressive TME,TGF-βpromotes cytokine synthesis via the NF-κB ***,we coexpressed SMAD7,a suppressor of TGF-βsignaling,with a HER2-targeted CAR in engineered T *** novel CAR-T cells displayed high cytolytic efficacy and were resistant to TGF-β-triggered exhaustion,which enabled sustained tumoricidal capacity after continuous antigen ***,SMAD7 substantially reduced the production of inflammatory cytokines by antigen-primed CAR-T ***,SMAD7 downregulated TGF-βreceptor I and abrogated the interplay between the TGF-βand NF-κB pathways in CAR-T *** a result,these CAR-T cells persistently inhibited tumor growth and promoted the survival of tumor-challenged mice regardless of the hostile tumor microenvironment caused by a high concentration of TGF-β.SMAD7 coexpression also enhanced CAR-T-cell infiltration and persistent activation in patient-derived tumor ***,our study demonstrated the feasibility of SMAD7 coexpression as a novel approach to improve the efficacy and safety of CAR-T-cell therapy for solid tumors.

关键词： TGF-βpathway SMAD7 NF-κB pathway CAR-T-cell therapy Cytokine release syndrome(CRS)

Network Pharmacology-Based Dissection of the Bioactive Compounds and Pharmacological Mechanisms of Yiqi Fumai Lyophilized Injection for the Treatment of Heart Failure

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World Journal of Traditional Chinese Medicine 2024年第1期10卷 75-82页

作者： Yu-Xi Huang Jing-Jing Fan Lu-Lu Xu Rong Yu Yi Kuang Yue Chai rui zheng Xiao-Yu Zhang Hong-Cai Shang Xue Qiao Min Ye State Key Laboratory of Natural and Biomimetic Drugs School of Pharmaceutical SciencesPeking UniversityBeijingChina Key Laboratory of Chinese Internal Medicine of Ministry of Education Dongzhimen HospitalBeijing University of Chinese MedicineBeijingChina Yunnan Baiyao International Medical Research Center Peking UniversityBeijingChina Key Laboratory of Molecular Cardiovascular Sciences of Ministry of Education Peking UniversityBeijingChina

Objective:Yiqi Fumai Lyophilized Injection(YQFM),a Chinese medicine injection,has been widely used for the treatment of cardiovascular diseases,especially heart failure(HF).However,bioactive compounds and underlying mechanisms of YQFM in treating HF remain poorly *** and Methods:Network pharmacology was employed to investigate the bioactive compounds and mechanisms of YQFM.A compound-target network was constructed to screen bioactive compounds based on contribution index ***,an adriamycin-induced HF rat model was established to evaluate the cardio-protective effects of YQFM by hematoxylin and eosin staining and enzyme-linked immunosorbent ***:Network pharmacology indicated that YQFM may alleviate HF through 36 compounds and 109 ***,ginsenosides Rb1,Rg1,Re,Rf,Rb2,Rh1,schisandrin,and ginsenoside Rc were indicated as the top contributors of YQFM in treating *** was predicted to act on multiple targets such as vascular endothelial growth factor A,interleukin-2(IL-2),IL-6,and IL-1β,as well as to regulate signaling pathways such as hypoxia-inducible factor 1,tumor necrosis factor,VEGF,and *** pharmacological study suggested that YQFM could attenuate cardiac injury and up-regulate plasma concentrations of VEGFR-1 and NO in HF *** Rb1,as the major contributor from network pharmacology analysis,also showed a cardioprotective effect and up-regulation of VEGFR-1 in ***:Ginsenosides and schisandrin were predicted as the most important contributors to the cardioprotective effect of *** Rb1 was proved to alleviate HF and increase the plasma concentration of VEGFR-1.

关键词： Contribution index heart failure network pharmacology traditional Chinese medicine yiqi fumai lyophilized injection