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Inhibition of Bcl-6 Expression Ameliorates Asthmatic Characteristics in Mice

Current Medical Science 2024年第1期44卷 110-120页

作者： Chang-zhi ZHOU Xiong XIONg Wei-jun TAN ya-fei WANg Zhen ya.g Xue-ying LI Xiu-wen ya.g Xiao-fan LIU Sun-feng YU Liang-chao WANg Shuang gENg Department of Respiratory and Critical Care Medicine The Central Hospital of WuhanTongji Medical CollegeHuazhong University of Science and TechnologyWuhan 430014China Department of general Surgery Wuhan Wuchang HospitalWuhan University of Science and TechnologyWuhan 430063China

Objective The function of Bcl-6 in T follicular helper(Tfh)cell maturation is indispensable,and Tfh cells play a pivotal role in *** study investigated the impact of Bcl-6 on asthmatic *** The microscopic pathological alterations,airway resistance(AR),and lung compliance(LC)were determined in asthmatic mice and Bcl-6 interference *** surface molecular markers of Tfh cells and the Bcl-6 mRNA and protein expression were determined by flow cytometry,RT-qPCR,and Western blotting,*** relationships between the Tfh cell ratio and the IgE and Igg1 concentrations in peripheral blood mononuclear cells(PBMCs)and bronchoalveolar lavage fluid(BALF)were *** Asthmatic inflammatory changes were observed in the lung tissue and were attenuated by Bcl-6 siRNA and dexamethasone(DXM).Asthmatic mice exhibited an increased AR and a decreased LC,while Bcl-6 siRNA or DXM mitigated these *** percentages of Tfh cells and eosinophils were significantly increased in the asthmatic mice,and they significantly decreased after Bcl-6 inhibition or DXM ***-qPCR and Western blotting analyses revealed that the Bcl-6 expression level in PBMCs was significantly higher in asthmatic mice,and it decreased following Bcl-6 inhibition or DXM *** IgE expression in the serum and BALF and the B cell expression in PBMCs exhibited a similar *** asthmatic mice,the ratio of Tfh cells in the peripheral blood showed a strong positive correlation with the IgE levels in the serum and BALF,but not with the Igg1 *** The amelioration of airway inflammation and airway hyper-responsiveness is achieved through Bcl-6 suppression,which effectively hinders Tfh cell differentiation,ultimately resulting in a concurrent reduction in IgE production.

关键词： Bcl-6 Tfh asthma airway hyper-responsiveness mouse model

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脂质代谢异常对帕金森病进程的影响及临床意义

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中国现代神经疾病杂志 2024年第3期24卷 131-138页

作者：徐滢桂雅星上海交通大学医学院附属第一人民医院神经内科 200080

脂质代谢可能参与帕金森病的发生及进展,涉及α‑突触核蛋白异常折叠及积聚、铁死亡、gBA1基因变异、线粒体功能障碍等多种病理生理学机制。本文综述帕金森病的脂质代谢异常以及可能的相关致病机制,为帕金森病的早期诊断与治疗探索新的... 详细信息

脂质代谢可能参与帕金森病的发生及进展,涉及α‑突触核蛋白异常折叠及积聚、铁死亡、gBA1基因变异、线粒体功能障碍等多种病理生理学机制。本文综述帕金森病的脂质代谢异常以及可能的相关致病机制,为帕金森病的早期诊断与治疗探索新的思路。

关键词：帕金森病脂类代谢 α突触核蛋白葡糖苷酰鞘氨醇酶基因突变综述

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Efficient micrometer-scale thick-film perovskite solar cells with superior stability

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Rare Metals 2024年第4期43卷 1647-1657页

作者： Jian-Fei Hu gang Chen Shun-Zhang Yu Yue-Xin Lin Kai-Yu Wang Zong-Wei Li guo-Dong Zhang Teng-Fei Pan ya-Jing Li Ming-Jie Li ying-Dong Xia Yi-Fan Lv Yong-Hua Chen Key Laboratory of Flexible Electronics(KLoFE)and Institute of Advanced Materials(IAM) School of Flexible Electronics(Future Technologies)Nanjing Tech University(NanjingTech)Nanjing211816China Department of Applied Physics The Hong Kong Polytechnic UniversityHong Kong999077China Shenzhen Research Institute The Hong Kong Polytechnic UniversityShenzhen518057China Optics Valley Laboratory Hubei430074China

It is essential to enhance the thickness of the absorber layer for perovskite solar cells(PSCs)to improve device performance and reduce industry ***,thick perovskite films(>1μm)are difficult to be fabricated by employing traditional solvents,such as N,N-dimethylformamide(DMF),dimethyl sulfoxide(DMSO).Besides,it is a challenge to fabricate thick-film perovskite owing to the deteriorated surface morphology and serious defect ***,a simple method was reported to deposit uniform pinhole-free perovskite films with a thickness of more than 2μm utilizing the methylamine acetate(MAAc)ionic liquid as the *** with methylammonium chloride(MACl)as an additive,thick-film perovskite with~2μm in grain size and few grain boundaries(gBs)was prepared,which dramatically improved the perovskite crystal quality and enhanced carrier transport *** final PSCs exhibited a power conversion efficiency(PCE)of 20.16%.The device showed improved stability with 95%of its initial efficiency in a nitrogen environment over 5000 *** work provides an alternative strategy to produce extremely efficient and stable thick-film *** can be believed that this device has great potential in the application of large areas and laminated PSCs.

关键词： Perovskite solar cells Thick-film Stability Ionic liquid

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Hydraulic properties and drought response of a tropical bamboo (Cephalostachyum pergracile)

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Plant Diversity 2024年第3期46卷 406-415页

作者： Wanwalee Kongjarat Lu Han Amy Ny Aina Aritsara Shu-Bin Zhang gao-Juan Zhao Yong-Jiang Zhang Phisamai Maenpuen ying-Mei Li Yi-Ke Zou Ming-Yi Li Xue-Nan Li Lian-Bin Tao ya-Jun Chen CAS Key Laboratory of Tropical Forest Ecology Xishuangbanna Tropical Botanical GardenChinese Academy of SciencesYunnan 666303China University of the Chinese Academy of Sciences Beijing 100049China T-STAR Core Team Xishuangbanna Tropical Botanical GardenChinese Academy of SciencesYunnan 666303China School of Biology and Ecology University of MaineOronoMEUSA Climate Change Institute University of MaineOronoME 04469USA School of Biological and Chemical Science Pu’er UniversityXueyuan RoadYunnan 665000China Institute of Ecology and geobotany School of Ecology and Environmental SciencesYunnan UniversityKunmingYunnan 650091China School of Ecology and Environment Southwest Forestry UniversityKunmingYunnan 650224China Yuanjiang Savanna Ecosystem Research Station Xishuangbanna Tropical Botanical GardenChinese Academy of SciencesYuanjiangYunnan 653300China

Bamboo plants are an essential component of tropical ecosystems,yet their vulnerability to climate extremes,such as drought,is poorly understood due to limited knowledge of their hydraulic *** pergracile,a commonly used tropical bamboo species,exhibited a substantially higher mortality rate than other co-occurring bamboos during a severe drought event in 2019,but the underlying mechanisms remain *** study investigated the leaf and stem hydraulic traits related to drought responses,including leaf-stem embolism resistance(P50leaf;P50stem) estimated using optical and X-ray microtomography methods,leaf pressure-volume and water-releasing ***,we investigated the seasonal water potentials,native embolism level(PLC) and xylem water source using stable *** found that *** exhibited strong resistance to embolism,showing low P50leaf,P50stem,and turgor loss point,despite its rapid leaf water ***,its leaves displayed greater resistance to embolism than its stem,suggesting a lack of effective hydraulic vulnerability segmentation(HVS) to protect the stem from excessive xylem *** the dry season,approximately 49% of the water was absorbed from the upper 20-cm-deep soil ***,significant diurnal variation in leaf water potentials and an increase in midday PLC from 5.87±2.33% in the wet season to 12.87±4.09%in the dry season were *** summary,this study demonstrated that the rapid leaf water loss,high reliance on surface water,and a lack of effective HVS in *** accelerated water depletion and increased xylem embolism even in the typical dry season,which may explain its high mortality rate during extreme drought events in 2019.

关键词： Climate change Drought Hydraulic safety Hydraulic vulnerability segmentation Stable isotope Tree mortality

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Artificial cavernosa-like tissue based on multibubble Matrigel and a human corpus cavernous fibroblast scaffold

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Asian Journal of Andrology 2024年第3期26卷 260-267页

作者： Yu-Zhuo Chen Yi-Hong Zhou Min-Bo yan Ming Xiao Biao Liu ying-Hao Yin Xiao-Li Tan Yong-Quan Huang Yu-Hong Lin Ting Xie Jia-Li Tian Qi Wang Jian-ying Li Zi-Zhou Meng Zheng Li Emily Xing Yu-Xin Tang ya-Wei Li Zhong-Zhen Su Liang-Yu Zhao Department of Ultrasound The Fifth Affiliated HospitalSun Yat-sen UniversityZhuhai 519000China Department of Interventional Medicine Guangdong Provincial Key Laboratory of Biomedical ImagingThe Fifth Affiliated HospitalSun Yat-sen UniversityZhuhai 519000China Department of Urology The Fifth Affiliated HospitalSun Yat-sen UniversityZhuhai 519000China Department of Andrology the Center for Men’s HealthUrologic Medical CenterShanghai Key Laboratory of ReproductiveMedicineShanghai General HospitalShanghai Jiao Tong University School of MedicineShanghai 200080China Cedars-Sinai Medical Center Los AngelesCA 90024USA

Ex vivo tissue culture of the human corpus cavernosum(cc)can be used to explore the tissue structural changes and complex signaling *** present,artificial Cc-like tissues based on acellular or three-dimensional(3D)-printed scaffolds are used to solve the scarcity of primary penis tissue ***,inconvenience and high costs limit the wide application of such ***,we describe a simple,fast,and economical method of constructing artificial CC-like *** Cc fibroblasts(FBs),endothelial cells(ECs),and smooth muscle cells(SMCs)were expanded in vitro and mixed with Matrigel in specific proportions.A large number of bubbles were formed in the mixture by vortexing combined with pipette blowing,creating a porous,spongy,and spatial *** Cc FBs produced a variety of signaling factors,showed multidirectional differentiation potential,and grew in a 3D grid in Matrigel,which is necessary for CC-like tissue to maintain a porous structure as a cell *** the C-like tissue,ECs covered the surface of the lumen,and SMCs were located inside the trabeculae,similar to the structure of the primary *** cell components remained stable for 3 days in vitro,but the EC content decreased on the 7th ***/integrated(WNT)signaling activation led to lumen atrophy and increased tissue fibrosis in CC-like tissue,inducing the same changes in characteristics as in the primary *** study describes a preparation method for human artificial cC-like tissue that may provide an improved experimental platform for exploring the function and structure of the cC and conducting drug screening for erectile dysfunction therapy.

关键词： artificial tissue corpus cavernosum ex vivo fibroblasts

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Comparative efficacy and safety between endoscopic submucosal dissection,surgery and definitive chemoradiotherapy in patients with cT1N0M0 esophageal cancer

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World Journal of gastrointestinal Endoscopy 2024年第2期16卷 72-82页

作者： Shu-Ai Luo Yu-ying Sun ya-Ting Zeng Chun-Yu Huang State Key Laboratory of Oncology in South China Sun Yat-sen University Cancer CenterGuangzhou 510060Guangdong ProvinceChina

BACKgROUND Endoscopic submucosal dissection(ESD)and surgical resection are the standard of care for cT1N0M0 esophageal cancer(EC),whereas definitive chemoradiotherapy(d-CRT)is a treatment ***,the comparative efficiency and safety of ESD,surgery and d-CRT for cT1N0M0 EC remain *** To compare the efficiency and safety of ESD,surgery and d-CRT for cT1N0M0 *** We retrospectively analyzed the hospitalized data of a total of 472 consecutive patients with cT1N0M0 EC treated at Sun yat-sen University Cancer center between 2017-2019 and followed up until October 30th,*** analyzed demographic,medical recorded,histopathologic characteristics,imaging and endoscopic,and follow-up *** Kaplan-Meier method and Cox proportional hazards modeling were used to analyze the difference of survival outcome by *** probability of treatment weighting(IPTW)was used to minimize potential confounding *** We retrospectively analyzed patients who underwent ESD(n=99)or surgery(n=220)or d-CRT(n=16)at the Sun yat-sen University Cancer Center from 2017 to *** median follow-up time for the ESD group,the surgery group,and the d-CRT group was 42.0 mo(95%CI:35.0-60.2),45.0 mo(95%CI:34.0-61.75)and 32.5 mo(95%CI:28.3-40.0),*** adjusting for background factors using IPTW,the highest 3-year overall survival(OS)rate and 3-year recurrence-free survival(RFS)rate were observed in the ESD group(3-year OS:99.7% and 94.7% and 79.1%;and 3-year RFS:98.3%,87.4% and 79.1%,in the ESD,surgical,and d-CRT groups,respectively).There was no difference of severe complications occurring between the three groups(P≥0.05).Multivariate analysis showed that treatment method,histology and depth of infiltration were independently associated with OS and *** For cT1N0M0 EC,ESD had better long-term survival and lower hospitalization costs than those who underwent d-CRT and surgery,with a similar rate of severe complications occurring.

关键词： Retrospective study cT1N0M0 Esophageal squamous cell carcinoma Endoscopic submucosal dissection Surgery Definitive chemoradiotherapy

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Highly Thermally Conductive and Structurally Ultra‑Stable graphitic Films with Seamless Heterointerfaces for Extreme Thermal Management

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Nano-Micro Letters 2024年第3期16卷 383-397页

作者： Peijuan Zhang Yuanyuan Hao Hang Shi Jiahao Lu yingjun Liu Xin Ming ya Wang Wenzhang Fang Yuxing Xia yance Chen Peng Li Ziqiu Wang Qingyun Su Weidong Lv Ji Zhou ying Zhang Haiwen Lai Weiwei gao Zhen Xu Chao gao MOE Key Laboratory of Macromolecular Synthesis and Functionalization Department of Polymer Science and EngineeringKey Laboratory of Adsorption and Separation Materials and Technologies of Zhejiang ProvinceZhejiang University38 Zheda RoadHangzhou 310027People’s Republic of China Shanxi-Zheda Institute of Advanced Materials and Chemical Engineering Taiyuan 030032People’s Republic of China Beijing Spacecrafts Manufacturing Co. LtdBeijing Friendship Road 104Haidian DistrictBeijing 100094People’s Republic of China Beijing Institute of Space Mechanics and Electricity Beijing Friendship Road 104Haidian DistrictBeijing 100094People’s Republic of China China Academy of Aerospace Aerodynamics Beijing 100074People’s Republic of China Hangzhou gaoxi Technol Co. LtdHangzhou 311113People’s Republic of China International Research Center for X Polymers International CampusZhejiang UniversityHaining 314400People’s Republic of China

Highly thermally conductive graphitic film(gF)materials have become a competitive solution for the thermal management of high-power electronic ***,their catastrophic structural failure under extreme alternating thermal/cold shock poses a significant challenge to reliability and ***,we present the first investigation into the structural failure mechanism of gF during cyclic liquid nitrogen shocks(LNS),which reveals a bubbling process characterized by“permeation-diffusion-deformation”*** overcome this long-standing structural weakness,a novel metal-nanoarmor strategy is proposed to construct a Cu-modified graphitic film(gF@Cu)with seamless *** well-designed interface ensures superior structural stability for gF@Cu after hundreds of LNS cycles from 77 to 300 ***,gF@Cu maintains high thermal conductivity up to 1088 W m^(−1)K^(−1)with degradation of less than 5%even after 150 LNS cycles,superior to that of pure gF(50%degradation).Our work not only offers an opportunity to improve the robustness of graphitic films by the rational structural design but also facilitates the applications of thermally conductive carbon-based materials for future extreme thermal management in complex aerospace electronics.

关键词： Highly thermally conductive Structurally ultra-stable graphitic film Extreme thermal management Liquid nitrogen bubbling

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World Journal of Clinical Cases 2024年第24期12卷 5589-5595页

作者： Zhi-Nian Wu Ru JI ying Xiao ya-Dong Wang Cai-yan Zhao Department of Infectious Diseases The Hebei Medical University Third HospitalShijiazhuang 050051Hebei ProvinceChina

BACKgROUND The complexity of immunoglobulin g4(Igg4)-related diseases and their potential connection to hematologic malignancies remains *** article provided a review of the diagnosis and treatment of a patient with Igg4-related sclerosing cholangitis(SC)and essential thrombocythemia(ET),along with an analysis of relevant literature to enhance comprehension of this *** SUMMARY A 56-year-old male was admitted to two hospitals with deteriorating jaundice and pruritus prior to *** our expectations,the patient was first diagnosed with Igg4-SC and ET with the Janus kinase 2 V617F ***,the administration of acetate prednisone significantly resulted in improvements in both Igg4-SC and *** need to pay attention to immune disorders and inflammation as they contribute to the development of various disease *** When Igg4-SC is suspected without histopathological evidence,diagnostic therapy and long-term regular follow-up can lead to positive treatment *** should be mindful of the potential presence of concurrent hematologic diseases in patients with immune disorders.

关键词： Immunoglobulin g4-related sclerosing cholangitis Essential thrombocythemia Autoimmune pancreatitis Janus kinase 2 mutation glucocorticoids Case report

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公路隧道装配式仰拱接头变形破坏规律

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中国公路学报 2024年第7期37卷 58-69页

作者：王迎超徐杭雷雅婷周鑫郝英中国矿业大学深地工程智能建造与健康运维全国重点实验室江苏徐州221116 中国矿业大学力学与土木工程学院江苏徐州221116

接头部位是公路隧道装配式仰拱受力最薄弱的部位,研究接头的力学性能意义重大。首先,预制仰拱采用弯螺栓连接,通过室内试验研究不同轴力分级加载过程中接缝张开量、竖向位移、接头附近表面混凝土应变等变化规律。然后,建立装配式仰拱接... 详细信息

接头部位是公路隧道装配式仰拱受力最薄弱的部位,研究接头的力学性能意义重大。首先,预制仰拱采用弯螺栓连接,通过室内试验研究不同轴力分级加载过程中接缝张开量、竖向位移、接头附近表面混凝土应变等变化规律。然后,建立装配式仰拱接头的三维精细化有限元模型,模拟接头连接形式及接触状态,研究不同轴力-弯矩组合荷载作用下装配式仰拱接头变形、竖向位移以及混凝土应力发展规律。研究结果表明:室内试验和数值模拟获得的弯螺栓抗弯性能具有很好的一致性,且接头破坏过程特征也基本一致,即从接缝靠近施力侧压紧,到对侧张开,再到接头靠近施力侧表面混凝土先产生裂缝,紧接着侧面裂缝斜向上方发展逐渐贯通至顶面,混凝土压坏,最终接头破坏;接缝最大张开量和接头转角随着弯矩的增大,先线性增大后曲线形增大;轴力相同时,接头抗弯刚度随弯矩增加而减小;弯矩一定时,接头抗弯刚度随轴力增加而增加。研究成果可为公路隧道装配式仰拱接头设计及力学性能分析提供参考。

关键词：隧道工程装配式仰拱模型试验破坏特征接头转角

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载铜纳米粒鼻用原位凝胶体外释放度研究

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科学技术与工程 2024年第22期24卷 9302-9308页

作者：曹雅仇丽颖西南民族大学药学院成都610225

为研究载铜纳米粒鼻用原位凝胶(TETA-Cu-NPs-gel)中三乙烯四胺铜(TETA-Cu)的体外释放规律,通过透析法研究TETA-Cu的体外释放度,以0.1 mol/mL磷酸盐缓冲液(PBS,pH=7.4)为释放介质,并用Origin软件对释药数据进行模型拟合。采用高效液相色... 详细信息

为研究载铜纳米粒鼻用原位凝胶(TETA-Cu-NPs-gel)中三乙烯四胺铜(TETA-Cu)的体外释放规律,通过透析法研究TETA-Cu的体外释放度,以0.1 mol/mL磷酸盐缓冲液(PBS,pH=7.4)为释放介质,并用Origin软件对释药数据进行模型拟合。采用高效液相色谱法检测TETA-Cu在溶出介质中的释放水平,以Swell Chromplus^(TM)C_(18)(4.6 mm×150 mm,5μm)为色谱柱,流动相A为pH=3.0磷酸盐缓冲液,流动相B为甲醇(A∶B=90∶10),流速1.0 mL/min,检测波长为260 nm。结果表明,TETA-Cu在0.05~1 mg/mL范围内线性关系良好,高、中、低三个浓度的回收率在99.9%~101.0%,RSD均小于2%;与TETA-Cu溶液相比,TETA-Cu-NPs-gel释药速率缓慢,符合一级释药动力学方程。可见,本文研究所建立的TETA-Cu-NPs-gel体外释放度测定方法准确、简便可行。TETA-Cu-NPs-gel具有缓释的作用。

关键词：三乙烯四胺铜铜补充剂高效液相色谱体外释放度离子型凝胶

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