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大鼠小肠移植急性排斥反应中血清白细胞介素2及干扰素γ的变化

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中国组织工程研究与临床康复 2007年第21期11卷 4093-4096页

作者：于小迪王为忠赵正维解放军第四军医大学西京医院胃肠外科陕西省西安市710033

目的:分析血清白细胞介素2、干扰素γ的水平在大鼠小肠移植急性排斥反应过程中的意义及其评估价值。方法:实验于2005-11/2006-06在解放军第四军医大学西京医院胃肠外科实验室完成。实验方法:小肠移植模型动物选用封闭群SD和Wistar大鼠42... 详细信息

目的:分析血清白细胞介素2、干扰素γ的水平在大鼠小肠移植急性排斥反应过程中的意义及其评估价值。方法:实验于2005-11/2006-06在解放军第四军医大学西京医院胃肠外科实验室完成。实验方法:小肠移植模型动物选用封闭群SD和Wistar大鼠42只,按随机数字表法分为3组:①对照组(n=6):SD大鼠仅作腹部开关及左肾切除术。②同基因移植组(n=18):供受体均为SD大鼠。③异基因移植组(n=18):供体为Wistar大鼠,受体为SD大鼠。同基因移植组和异基因移植组分别于术后3,5,7天处死大鼠取移植肠段行病理组织学检查,每次6只;同时取血清应用ELISA法检测血清白细胞介素2、干扰素γ水平,对照组大鼠于术后第3天取血清检测。实验评估:排斥程度评估标准分为轻、中、重3度:①轻度:肠黏膜绒毛数目减少,轻度增粗,变短,少量淋巴细胞和粒细胞浸润,少量凋亡上皮细胞。②中度:肠黏膜绒毛明显变矮增宽,黏膜上皮开始脱落,细胞浸润加重,上皮细胞凋亡数目明显增多。③重度:肠绒毛结构消失,上皮脱落,间质大量炎细胞浸润,肌层结构破坏,血管炎。结果:42只大鼠均进入结果分析,无脱失。①异基因移植组大鼠术后第3,5,7天的病理组织学检测结果分别符合轻、中、重度排斥反应,对照组和同基因移植组无明显排斥征象。②异基因移植组大鼠血清白细胞介素2、干扰素γ的表达水平在术后第3,5,7天均显著高于其他2组(P0.05)。结论:白细胞介素2、干扰素γ在大鼠小肠移植急性排斥反应过程中发挥重要作用,血清白细胞介素2、干扰素γ水平监测可作为预测及早期诊断大鼠小肠移植急性排斥反应的重要指标。

关键词：小肠/移植移植物排斥白细胞介素2 干扰素类器官移植

Life’s Essential 8 and risk of non-communicable chronic diseases:Outcome-wide analyses

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Chinese Medical Journal 2024年第13期137卷 1553-1562页

作者： yuetian yu Ying Sun yuefeng yu yuying Wang Chi Chen Xiao Tan Yingli Lu Ningjian Wang Institute and Department of Endocrinology and Metabolism Shanghai Ninth People’s HospitalShanghai JiaoTong University School of MedicineShanghai 200011China School of Public Health Zhejiang UniversityHangzhou 310058ZhejiangChina Department of Medical Sciences Uppsala UniversityUppsala 75185Sweden

Background:Life’s Simple 7,the former construct of cardiovascular health(CVH)has been used to evaluate adverse non-communicable chronic diseases(NCDs).However,some flaws have been recognized in recent years and Life’s Essential 8 has been *** this study,we aimed to analyze the association between CVH defined by Life’s Essential 8 and risk of 44 common NCDs and further estimate the population attributable fractions(PAFs)of low-moderate CVH scores in the 44 ***:In the UK Biobank,170,726 participants free of 44 common NCDs at baseline were *** Life’s Essential 8 composite measure consists of four health behaviours(diet,physical activity,nicotine exposure,and sleep)and four health factors(body mass index,non-high density lipoprotein cholesterol,blood glucose,and blood pressure),and the maximum CVH score was 100 *** score was categorized into low,moderate,and high *** were followed up for 44 NCDs diagnosis across 10 human system disorders according to the International Classification of Diseases 10th edition(ICD-10)code using linkage to national health records until *** proportional hazard models were used in this *** hazard ratios(HRs)and PAFs of 44 NCDs associated with CVH score were ***:During the median follow-up of 10.85 years,58,889 incident NCD cases were *** linear dose-response associations were found between higher CVH score and lower risk of 25(56.8%)of 44 ***-moderate CVH(<80 points)score accounted for the largest proportion of incident cases in diabetes(PAF:80.3%),followed by gout(59.6%),sleep disorder(55.6%),chronic liver disease(45.9%),chronic kidney disease(40.9%),ischemic heart disease(40.8%),chronic obstructive pulmonary disease(40.0%),endometrium cancer(35.8%),lung cancer(34.0%),and heart failure(34.0%)as the top *** the eight modifiable factors,overweight/obesity explained the largest number of cases of incident NCDs in endocrine,nutritional,and me

关键词： Life’s Essential 8 Cardiovascular risk score Non-communicable chronic disease Population health management Cohort analysis Healthy lifestyle UK Biobank

Pd-catalyzed intermolecular Si–O formation via Si–C activation

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Science China Chemistry 2024年第8期67卷 2661-2669页

作者： Shuang Liu yu-Shu Chen Yichen Wu Peng Wang State Key Laboratory of Organometallic Chemistry Shanghai Institute of Organic ChemistryUniversity of Chinese Academy of SciencesShanghai 200032China School of Chemistry and Materials Science Hangzhou Institute for Advanced StudyUniversity of Chinese Academy of SciencesHangzhou 310024China College of Material Chemistry and Chemical Engineering Key Laboratory of Organosilicon Chemistryand Material Technology of Ministry of EducationHangzhou Normal UniversityHangzhou 311121China

The development of efficient Si–O bond formation reaction with 100% atom-economy, excellent functional group tolerance, and broad scope under mild conditions is highly desired due to the prevalence of silanol, silyl ether, and their derivatives in synthetic chemistry and materials science. Here, we have realized the Pd-catalyzed Si–O formation reaction via a Si–C activation approach with 100% atom-economy by employing silacyclobutanes(SCBs) and various hydroxy-containing substrates, including water,alcohols, phenols, and silanols. This protocol features a broad substrate scope, remarkable functional compatibility and mild conditions, providing a series of silanols, silyl ethers in high efficiency. Notably, this protocol could also be used for selective protection of hydroxy functionalities, and for the access of a class of novel polymers containing Si–O main chain. Preliminary mechanistic studies unveiled that this reaction underwent a Pd-catalyzed concerted ring-opening mechanism.

关键词： Si–O formation Si–C activation palladium silacyclobutane silanol silyl ether

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Large-Scale Preparation of Mechanically High-Performance and Biodegradable PLA/PHBV Melt-Blown Nonwovens with Nanofibers

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Engineering 2024年第8期39卷 244-252页

作者： Gaohui Liu Jie Guan Xianfeng Wang Jianyong yu Bin Ding Shanghai Frontier Science Research Center of Advanced Textiles College of TextilesDonghua UniversityShanghai 201620China College of Materials Science and Engineering Qingdao UniversityQingdao 266071China

Biodegradable polylactic acid(PLA)melt-blown nonwovens are attractive candidates to replace nondegradable polypropylene melt-blown ***,it is still an extremely challenging task to prepare PLA melt-blown nonwovens with sufficient mechanical properties for practical ***,we report a simple strategy for the large-scale preparation of biodegradable PLA/poly(3-hydroxybutyrate-co-3-hydroxyvalerate)(PHBV)melt-blown nonwovens with high strength and excellent *** this process,a small amount of PHBV is added to PLA to improve the latter’s crystallization rate and *** addition,when the PHBV content increases from 0 to 7.5 wt%,the diameters of the PLA/PHBV melt-blown fibers decrease significantly(with the proportion of nanofibers increasing from 7.7%to 42.9%).The resultant PLA/PHBV(5 wt%PHBV)melt-blown nonwovens exhibit the highest mechanical *** tensile stress,elongation,and toughness of PLA/PHBV(5 wt%PHBV)melt-blown nonwovens reach 2.5 MPa,45%,and 1.0 MJm3,*** importantly,PLA/PHBV melt-blown nonwovens can be completely degraded into carbon dioxide and water after four months in the soil,making them environmentally friendly.A general tensile-failure model of melt-blown nonwovens is proposed in this study,which may shed light on mechanical performance enhancement for nonwovens.

关键词： PLA PHBV Melt-blown Biodegradable Strength Toughness

Serum urate is associated with an increased risk of inflammatory bowel disease: A bidirectional Mendelian randomization study

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World Journal of Clinical Cases 2024年第5期12卷 891-902页

作者： Song Zhang Xue Fang Le Kang Xiang-yu Sui Miao Liu yu-Jia Luo Shuo Fu Zhao-Shen Li Sheng-BingZhao yu Bai Department of Gastroenterology Changhai HospitalShanghai 200433China Department of Gastroenterology Changhai HospitalSecond Military Medical University/Naval Medical UniversityShanghai 200433China Digestive Endoscopy Center Changhai HospitalNaval/Second Military Medical UniversityShanghai 200433China National Clinical Research Center for Digestive Diseases Shanghai 200433China

BACKGROUND Previous studies have indicated bidirectional associations between urate levels and inflammatory bowel disease(IBD),including ulcerative colitis(UC)and Crohn’s disease(CD).However,it remains unclear whether the observations are causal because of confounding *** To investigate the causal associations between urate levels and IBD using bidirec-tional Mendelian randomization(MR).METHODS Independent genetic variants for urate levels and IBD were selected as instru-mental variables from published genome-wide association studies(GWASs).Summary statistics for instrument-outcome associations were retrieved from three separate databases for IBD(the UK Biobank,the FinnGen database and a large GWAS meta-analysis)and one for urate levels(a large GWAS meta-analysis).MR analyses included the inverse-variance-weighted method,weighted-median estimator,MR-Egger and sensitivity analyses(MR-PRESSO).A meta-analysis was also conducted to merge the data from separate outcome databases using a fixed-effects *** Genetically higher serum urate levels were strongly associated with an increased risk of UC[odds ratio(OR):1.95,95%confidence interval(CI):1.86-2.05]after outlier correction,and the ORs(95%CIs)for IBD and CD were 0.94(95%CI:0.86-1.03)and 0.91(95%CI:0.80-1.04),*** studies have confirmed the positive association between urate levels and ***,genetically predicted IBD was inversely related to urate levels(OR:0.97,95%CI:0.94-0.99).However,no association was observed between genetically influenced UC or CD and urate *** Urate levels might be risk factors for UC,whereas genetically predicted IBD was inversely associated with urate *** findings provide essential new insight for treating and preventing IBD.

关键词： Inflammatory bowel disease Urate levels Antioxidant Mendelian randomization Single nucleotide polymorphism

The gasdermin family:emerging therapeutic targets in diseases

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Signal Transduction and Targeted Therapy 2024年第5期9卷 1905-1937页

作者： Chenglong Zhu Sheng Xu Ruoyu Jiang Yizhi yu Jinjun Bian Zui Zou Faculty of Anesthesiology Changhai HospitalNaval Medical UniversityShanghai 200433China School of Anesthesiology Naval Medical UniversityShanghai 200433China National Key Laboratory of Immunity&Inflammation Naval Medical UniversityShanghai 200433China d 4 Department of Biochemistry and Molecular Biology College of Basic Medical SciencesNaval Medical UniversityShanghai 200433China

The gasdermin(GSDM)family has garnered significant attention for its pivotal role in immunity and disease as a key player in *** recently characterized class of pore-forming effector proteins is pivotal in orchestrating processes such as membrane permeabilization,pyroptosis,and the follow-up inflammatory response,which are crucial self-defense mechanisms against irritants and *** have been implicated in a range of diseases including,but not limited to,sepsis,viral infections,and cancer,either through involvement in pyroptosis or independently of this *** regulation of GSDM-mediated pyroptosis is gaining recognition as a promising therapeutic strategy for the treatment of various *** strategies for inhibiting GSDMD primarily involve binding to GSDMD,blocking GSDMD cleavage or inhibiting GSDMD-N-terminal(NT)oligomerization,albeit with some off-target *** this review,we delve into the cutting-edge understanding of the interplay between GSDMs and pyroptosis,elucidate the activation mechanisms of GSDMs,explore their associations with a range of diseases,and discuss recent advancements and potential strategies for developing GSDMD inhibitors.

关键词： diseases therapeutic immunity

Roadmap for rechargeable batteries:present and beyond

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Science China Chemistry 2024年第1期67卷 13-42页

作者： Sen Xin Xu Zhang Lin Wang Haijun yu Xin Chang yu-Ming Zhao Qinghai Meng Pan Xu Chen-Zi Zhao Jiahang Chen Huichao Lu Xirui Kong Jiulin Wang Kai Chen Gang Huang Xinbo Zhang yu Su Yao Xiao Shu-Lei Chou Shilin Zhang Zaiping Guo Aobing Du Guanglei Cui Gaojing Yang Qing Zhao Liubing Dong Dong Zhou Feiyu Kang Hu Hong Chunyi Zhi Zhizhang yuan Xianfeng Li Yifei Mo Yizhou Zhu Dongfang yu Xincheng Lei Jianxiong Zhao Jiayi Wang Dong Su yu-Guo Guo Qiang Zhang Jun Chen Li-Jun Wan CAS Key Laboratory of Molecular Nanostructure and Nanotechnology CAS Research/Education Center for Excellence in Molecular SciencesBeijing National Laboratory for Molecular Sciences(BNLMS)Institute of ChemistryChinese Academy of Sciences(CAS)Beijing 100190China University of Chinese Academy of Sciences.Beijing 100049 China Institute of Advanced Battery Materials and Devices Faculty of Materials and ManufacturingBeijing University of TechnologyBeijing 100124China Key Laboratory of Advanced Functional Materials Ministry of EducationBeijing University of TechnologyBeijing 100124China Beijing Key Laboratory of Green Chemical Reaction Engineering and Technology Department of Chemical EngineeringTsinghua UniversityBeijing 100084China State Key Laboratory of Chemistry and Utilization of Carbon-Based Energy Resources College of ChemistryXinjiang UniversityUrumqi 830046China Department of Chemical Engineering Shanghai Jiao Tong UniversityShanghai 200240China State Key Laboratory of Rare Earth Resource Utilization Changchun Institute of Applied ChemistryChangchun 130022China Institute for Carbon Neutralization College of Chemistry and Materials EngineeringWenzhou UniversityWenzhou 325035China School of Chemical Engineering and Advanced Materials The University of AdelaideAdelaide 5000Australia Qingdao Industrial Energy Storage Research Institute Qingdao Institute of Bioenergy and Bioprocess TechnologyChinese Academy of SciencesQingdao 266101China Frontiers Science Center for New Organic Matter Key Laboratory of Advanced Energy Materials Chemistry(Ministry of Education)College of ChemistryNankai UniversityTianjin 300071China College of Chemistry and Materials Science Jinan UniversityGuangzhou 511443China Tsinghua Shenzhen International Graduate School Tsinghua UniversityShenzhen 518055China Department of Materials Science and Engineering City University of Hong KongHong Kong 999077China Division of Energy Storage Dalian National Laboratory for Clean Energy(DNL)Dalian Institute of Chem

Rechargeable batteries currently hold the largest share of the electrochemical energy storage market,and they play a major role in the sustainable energy transition and industrial decarbonization to respond to global climate *** to the increased popularity of consumer electronics and electric vehicles,lithium-ion batteries have quickly become the most successful rechargeable batteries in the past three decades,yet growing demands in diversified application scenarios call for new types of rechargeable *** efforts are made to developing the next-generation post-Li-ion rechargeable batteries,which include,but are not limited to solid-state batteries,lithium–sulfur batteries,sodium-/potassium-ion batteries,organic batteries,magnesium-/zinc-ion batteries,aqueous batteries and flow *** the great achievements,challenges persist in precise understandings about the electrochemical reaction and charge transfer process,and optimal design of key materials and interfaces in a *** roadmap tends to provide an overview about the current research progress,key challenges and future prospects of various types of rechargeable *** computational methods for materials development,and characterization techniques will also be discussed as they play an important role in battery research.

关键词： energy storage rechargeable batteries battery materials electrochemistry

Controllable large-scale processing of temperature regulating sheath-core fibers with high-enthalpy for thermal management

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Nano Materials Science 2024年第3期6卷 337-344页

作者： Ziye Chen Zexu Hu Shining Chen Senlong yu Liping Zhu Hengxue Xiang Meifang Zhu Key Laboratory for Modification of Chemical Fibers and Polymer Materials College of Materials Science and EngineeringDonghua UniversityShanghai201620China College of Mechanical and Engineering Donghua UniversityShanghai201620China

Temperature regulating fibers(TRF_(s)) with high enthalpy and high form stability are the key factors for thermal management. However, the enthalpies of most TRFsare not high, and the preparation methods are still at the laboratory scale. It remains a great challenge to use industrial spinning equipment to achieve continuous processing of TRF_(s) with excellent thermal and mechanical properties. Here, polyamide 6(PA6) based TRF_(s) with a sheath-core structure were prepared by bicomponent melt-spinning. The sheath-core TRF(TRF_(sc)) are composed of PA6 as sheath and functional PA6 as core, which are filled with the shape stable phase change materials(ssPCM),dendritic silica@polyethylene glycol(SiO_(2)@PEG). With the aid of the sheath structure, the filling content of SiO_(2)@PEG can reach 30 %, so that the enthalpy of the TRF_(s) can be as high as 21.3 J/g. The ultra-high enthalpy guarantees the temperature regulation ability during the alternating process of cooling and heating. In hot environment, the temperature regulation time is 6.59 min, and the temperature difference is 12.93℃. In addition, the mechanical strength of the prepared TRF_(sc) reaches 2.26 cN/dtex, which can fully meet its application in the field of thermal management textiles and devices to manage the temperature regulation of the human body or precision equipment, etc.

关键词： Thermal management Hybrid fibers Polyamides Bicomponent melt spinning Temperature regulating fibers

Diphylleia Grayi-Inspired Intelligent Temperature-Responsive Transparent Nanofiber Membranes

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Nano-Micro Letters 2024年第4期16卷 67-78页

作者： Cengceng Zhao Gaohui Liu Yanyan Lin Xueqin Li Na Meng Xianfeng Wang Shaoju Fu Jianyong yu Bin Ding Shanghai Frontier Science Research Center of Advanced Textiles College of TextilesDonghua UniversityShanghai 201620People’s Republic of China

Nanofiber membranes(NFMs) have become attractive candidates for next-generation flexible transparent materials due to their exceptional flexibility and breathability. However, improving the transmittance of NFMs is a great challenge due to the enormous reflection and incredibly poor transmission generated by the nanofiber-air interface. In this research, we report a general strategy for the preparation of flexible temperature-responsive transparent(TRT) membranes,which achieves a rapid transformation of NFMs from opaque to highly transparent under a narrow temperature window. In this process, the phase change material eicosane is coated on the surface of the polyurethane nanofibers by electrospray technology. When the temperature rises to 37 ℃, eicosane rapidly completes the phase transition and establishes the light transmission path between the nanofibers, preventing light loss from reflection at the nanofiber-air interface. The resulting TRT membrane exhibits high transmittance(> 90%), and fast response(5 s). This study achieves the first TRT transition of NFMs, offering a general strategy for building highly transparent nanofiber materials, shaping the future of next-generation intelligent temperature monitoring, anti-counterfeiting measures, and other high-performance devices.

关键词： Biomimetic Transparent Nanofibrous membrane Temperature response Phase change materials