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Feasibility of same-day discharge following endoscopic submucosal dissection for esophageal or gastric early cancer

World Journal of Gastroenterology 2022年第41期28卷 5957-5967页

作者： Jing Wang Shi-Jie Li Yan Yan Peng Yuan Wei-Feng Li Chang-Qi Cao Wei-Gang chen ke-neng chen QiWu key Laboratory of Carcinogenesis and Translational Research(Ministry of Education) Endoscopy CenterPeking University Cancer Hospital&InstituteBeijing 100142China The First Affiliated Hospital School of MedicineShihezi UniversityShihezi 832008Xinjiang Uygur Autonomous RegionChina The First Department of Thoracic Surgery Key Laboratory of Carcinogenesis and Translational Research(Ministry of Education)Peking University Cancer Hospital&InstituteBeijing 100142China

BACKGROUND Endoscopic submucosal dissection(ESD)is an established technique for the treatment of early gastrointestinal ***,multi-day(M-D)admission is required for patients undergoing ESD due to potential *** To evaluate the feasibility of a same-day(S-D)discharge strategy for ESD of the esophagus or *** The data of patients who underwent esophageal or gastric ESD were retrospectively collected from January 2018 to December 2021 at Peking University Cancer *** propensity score matching(PSM)method was applied to balance the unevenly distributed patient baseline characteristics between the S-D and M-D *** and postoperative parameters were compared between the matched *** Among the 479 patients reviewed,470 patients,including 91 in the S-D group and 379 in the M-D group,fulfilled the inclusion and exclusion *** PSM,78 patients in each group were paired using the 1:1 nearest available score match *** significant difference was found between groups with respect to intraoperative and postprocedural major adverse events(AEs).Tumor size,complete resection rate,and procedural duration were comparable between the *** S-D group demonstrated a significantly shorter length of hospital stay(P<0.001)and lower overall medical expenses(P<0.001)compared with the M-D *** The S-D discharge strategy may be feasible and effective for esophagogastric ESD,and the procedural-related AEs can be managed successfully.

关键词： Endoscopic submucosal dissection Early esophageal cancer Early gastric cancer Same-day surgery Adverse event

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Light-based 3D printing of stimulus-responsive hydrogels forminiature devices:recent progress and perspective

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Bio-Design and Manufacturing 2024年第5期7卷 721-746页

作者： chen Xin neng Xia Li Zhang Department of Mechanical and Automation Engineering The Chinese University of Hong KongHong Kong 999077China Multi-Scale Medical Robotics Center Hong Kong Science ParkShatin NTHong Kong 999077China Chow Yuk Ho Technology Center for Innovative Medicine The Chinese University of Hong KongHong Kong 999077China Department of Surgery The Chinese University of Hong KongHong Kong 999077China CUHK T Stone Robotics Institute The Chinese University of Hong KongHong Kong 999077China

Miniature devices comprising stimulus-responsive hydrogels with high environmental adaptability are now considered competitive candidates in the fields of biomedicine,precise sensors,and tunable *** and advanced fabricationmethods are critical formaximizing the application capabilities ofminiature ***-based three-dimensional(3D)printing technology offers the advantages of a wide range of applicable materials,high processing accuracy,and strong 3D fabrication capability,which is suitable for the development of miniature devices with various *** paper summarizes and highlights the recent advances in light-based 3D-printed miniaturized devices,with a focus on the latest breakthroughs in lightbased fabrication technologies,smart stimulus-responsive hydrogels,and tunable miniature devices for the fields of miniature cargo manipulation,targeted drug and cell delivery,active scaffolds,environmental sensing,and optical ***,the challenges in the transition of tunable miniaturized devices from the laboratory to practical engineering applications are *** opportunities that will promote the development of tunable microdevices are elaborated,contributing to their improved understanding of these miniature devices and further realizing their practical applications in various fields.

关键词： 3D printing Stimulus-responsive hydrogels Miniature devices Shape-morphing

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Demethylase-assisted site-specific detection of N^(1)-methyladenosine in RNA

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Chinese Chemical Letters 2024年第5期35卷 397-401页

作者： Jun Xiong ke-ke chen neng-Bin Xie Wei chen Wen-Xuan Shao Tong-Tong Ji Si-Yu Yu Yu-Qi Feng Bi-Feng Yuan College of Chemistry and Molecular Sciences Research Center of Public HealthRenmin Hospital of Wuhan UniversitySchool of Public HealthWuhan UniversityWuhan 430071China Department of Laboratory Medicine Zhongnan Hospital of Wuhan UniversityWuhan UniversityWuhan 430071China

The dynamic RNA modifications have been viewed as new posttranscriptional regulator in modulating gene expression as well as in a broad range of physiological processes.N^(1)-methyladenosine(m^(1)A)is one of the most prevalent modifications existing in multiple types of ***-depth investigation of the functions of m^(1)A requires the site-specific assessment of m^(1)A stoichiometry in ***,we established a demethylase-assisted method(DA-m^(1)A)for the site-specific detection and quantification of m^(1)A in RNA.N^(1)-methyl group in m^(1)A could result in the stalling of reverse transcription at m^(1)A site,thus producing the truncated *** AlkB is a demethylase that can demethylate m^(1)A to produce adenine in RNA,thus generating full-length cDNA from AlkB-treated *** of the produced amounts of full-length cDNA by quantitative real-time PCR can achieve the site-specific detection and quantification of m^(1)A in *** the DA-m^(1)A method,we examined and successfully confirmed the previously well-characterized m^(1)A sites in various types of RNAs with low false positive *** addition,we found that the level of m^(1)A was significantly decreased at the bromodomain containing 2(BRD2)mRNA position 1674 and CST telomere replication complex component 1(CTC1)mRNA position 5643 in human hepatocellular carcinoma *** results suggest that these two m^(1)A sites in mRNA may be involved in liver *** together,the DA-m^(1)A method is simple and enables the rapid,cost-effective,and site-specific detection and quantification of m^(1)A in RNA,which provides a valuable tool to decipher the functions of m^(1)A in human diseases.

关键词： N^(1)-methyladenosine RNA modification AlkB demethylase RNA epigenetics Quantitative real-time PCR Hepatocellular carcinoma

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小细胞肺癌与TNM分期

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中国肺癌杂志 2016年第6期19卷 409-412页

作者：陈克能北京大学肿瘤医院北京100142

小细胞肺癌的临床侵袭性强,易于转移,因而长期以来认为手术疗效较差,治疗方法主要是放化疗,因此分期手段也以美国退伍军人肺癌协会的局限期和广泛期为主。随着肺癌分期手段的进步,分期的准确性进一步提高。大量回顾性的资料表明,早期小... 详细信息

小细胞肺癌的临床侵袭性强,易于转移,因而长期以来认为手术疗效较差,治疗方法主要是放化疗,因此分期手段也以美国退伍军人肺癌协会的局限期和广泛期为主。随着肺癌分期手段的进步,分期的准确性进一步提高。大量回顾性的资料表明,早期小细胞肺癌的手术疗效不亚于非小细胞肺癌。而对拟手术的小细胞肺癌的分期也应采用现代更精确的TNM分期。

关键词：小细胞肺癌外科治疗 TNM分期

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Axial enantiomers with donor-regulated TADF feature for multicolor circularly polarized electroluminescence

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Science China Chemistry 2024年第6期67卷 2039-2045页

作者： chen-Hao Guo Wen-Long Zhao ke-ke Tan Wei-chen Guo Liheng Feng Chuan-Feng chen Meng Li School of Chemistry and Chemical Engineering Shanxi UniversityTaiyuan030006China Beijing National Laboratory for Molecular Sciences CAS Key Laboratory of Molecular Recognition and FunctionInstitute of ChemistryChinese Academy of SciencesBeijing100190China University of Chinese Academy of Sciences Beijing100049China

This study optimized the TADF feature of axial chiral enantiomers through precise donor engineering,and multicolor CP-TADFwas achieved in the axial chiral *** pairs of axial enantiomers with donor-regulated TADF feature,namely(R/S)-TPCBD,(R/S)-DPCBD,and(R/S)-DPACBD,were synthesized by introducing carbazole donors with different substituents onto biphenyl cyanide *** the electron-donating ability of donors increases,the emission of these axial enantiomers ranges from 455,476 to 552 nm,their singlet-triplet energy gaps(ΔE_(ST))gradually decrease from 0.30,0.22 to 0.02 e V,accompanied by an increasement in the transition rate(k_(RISC))of RISC process,and the k_(RISC)of DPACBD could reach up to 7.16×10^(5)s^(-1).These axial enantiomers also exhibit mirror-image CD and circularly polarized luminescence(CPL)***,OLEDs based on TPCBD,DPCBD,and DPACBD as emitter were then fabricated,which displayed blue,green,and orange electroluminescence with EQE_(max)of 13.0%,16.4%,and 25.0%,*** results also exhibited a phenomenon of device efficiency increasing with the enhancement of donor ***,the CP-OLEDs using(R/S)-TPCBD,(R/S)-DPCBD and(R/S)-DPACBD as emitters displayed intense CPEL signals with g_(EL)values of 3.4×10^(-3)/-4.1×10^(-3),3.2×10^(-3)/-3.1×10^(-3)and2.3×10^(-3)/-2.1×10^(-3),*** convenient molecular engineering of donor regulation in the same molecular skeleton,CP-TADF materials with multicolor CPEL and improved device performance could be conveniently achieved.

关键词： axial chirality thermally activated delayed fluorescence circularly polarized luminescence electroluminescence organic light-emitting diodes

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Atomically Dispersed Ruthenium Catalysts with Open Hollow Structure for Lithium-Oxygen Batteries

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Nano-Micro Letters 2024年第2期16卷 154-164页

作者： Xin chen Yu Zhang Chang chen Huinan Li Yuran Lin ke Yu Caiyun Nan chen chen Beijing Advanced Innovation Center for Materials Genome Engineering Institute of Solid State ChemistryUniversity of Science and Technology BeijingBeijing 100083People’s Republic of China Engineering Research Center of Advanced Rare Earth Materials Department of ChemistryTsinghua UniversityBeijing 100084People’s Republic of China Beijing key Laboratory of Energy Conversion and Storage Materials Institution College of ChemistryBeijing Normal UniversityBeijing 100875People’s Republic of China

Lithium–oxygen battery with ultrahigh theoretical energy density is considered a highly competitive next-generation energy storage device,but its practical application is severely hindered by issues such as difficult decomposition of discharge products at ***,we have developed N-doped carbon anchored atomically dispersed Ru sites cathode catalyst with open hollow structure(h-RuNC)for Lithium–oxygen *** one hand,the abundance of atomically dispersed Ru sites can effectively catalyze the formation and decomposition of discharge products,thereby greatly enhancing the redox *** the other hand,the open hollow structure not only enhances the mass activity of atomically dispersed Ru sites but also improves the diffusion efficiency of catalytic ***,the excellent activity from atomically dispersed Ru sites and the enhanced diffusion from open hollow structure respectively improve the redox kinetics and cycling stability,ultimately achieving a high-performance lithium–oxygen battery.

关键词： Atomically dispersed Open hollow structure Discharge product Lithium Oxygen battery

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Erlotinib versus gemcitabine plus cisplatin as neoadjuvant treatment of stage IIIA-N2 EGFR-mutant non-small-cell lung cancer:final overall survival analysis of the EMERGING-CTONG 1103 randomised phase II trial

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Signal Transduction and Targeted Therapy 2023年第3期8卷 1310-1317页

作者： Wen-Zhao Zhong Hong-Hong Yan ke-neng chen Chun chen Chun-Dong Gu Jun Wang Xue-Ning Yang Wei-Min Mao Qun Wang Gui-Bin Qiao Ying cheng Lin Xu Chang-Li Wang Ming-Wei chen Xiao-Zheng Kang Wan-Pu Yan Ri-Qiang Liao Jin-Ji Yang Xu-Chao Zhang Si-Yang Liu Qing Zhou Yi-Long Wu Guangdong Provincial People’s Hospital Guangdong Academy of Medical Sciences510080 GuangzhouChina Peking University Cancer Hospital and Institute 100142 BeijingChina Fujian Medical University Union Hospital 350001 FuzhouChina First Affiliated Hospital of Dalian Medical University 116011 DalianChina Peking University People’s Hospital 100044 BeijingChina Zhejiang Cancer Hospital 310022 HangzhouChina Zhongshan Hospital 200032 ShanghaiChina Guangzhou Liuhuaqiao Hospital 510000 GuangzhouChina Jilin Provincial Tumor Hospital 130012 ChangchunChina Jiangsu Cancer Institute and Hospital 210009 NanjingChina Tianjin Medical University Cancer Institute and Hospital 300060 TianjinChina First Affiliated Hospital of Xi’an Jiaotong University 710061 Xi’anChina

EMERGING-CTONG 1103 showed improved progression-free survival(PFS)with neoadjuvant erlotinib *** for patients harbouring EGFR sensibility mutations and R0 resected stage IIIA-N2 non-small cell lung cancer(NSCLC)(NCT01407822).Herein,we report the final *** patients were randomly allocated 1:1 to the erlotinib group(150 mg/day orally;neoadjuvant phase for 42 days and adjuvant phase to 12 months)or to the GC group(gemcitabine 1250 mg/m2 plus cisplatin 75 mg/m2 intravenously;2 cycles in neoadjuvant phase and 2 cycles in adjuvant phase).Objective response rate(ORR),complete pathologic response(pCR),PFS,and overall survival(OS)were assessed along with *** hoc analysis was performed for subsequent treatments after disease *** investigated 72 patients(erlotinib,n=37;GC,n=35),the median follow-up was 62.5 *** median OS was 42.2 months(erlotinib)and 36.9 months(GC)(hazard ratio[HR],0.83;95%confidence interval[CI],0.47-1.47;p=0.513).The 3-and_(5-y)ear OS rates were 58.6%and 40.8%with erlotinib and 55.9%and 27.6%with GC(p_(3-y)=0.819,p_(5-y)=0.252).Subsequent treatment was administered in 71.9%and 81.8%of patients receiving erlotinib and GC,respectively;targeted therapy contributed mostly to OS(HR,0.35;95%CI,0.18-0.70).After disease progression,the ORR was 53.3%,and the median PFS was 10.9 months during the EGFR-TKI *** postoperative therapy,grade 3 or 4 adverse events(AEs)were 13.5%in the erlotinib group and 29.4%in the GC *** serious adverse events were *** exhibited clinical feasibility for resectable IIIA-N2 NSCLC over chemotherapy in the neoadjuvant setting.

关键词： neoadjuvant cisplatin chemotherapy

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Efficient nitrite-to-ammonia electroreduction over Zr-Ni frustrated Lewis acid-base pairs

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Science China Chemistry 2024年第5期67卷 1707-1714页

作者： Ying Zhang Zhuohang Li Wenyu Du Kai chen ke Chu School of Materials Science and Engineering Lanzhou Jiaotong UniversityLanzhou 730070China

Electrochemical NO_(2)~--to-NH_(3) conversion(NO_(2)RR) offers a green route to NH_(3) electrosynthesis, while developing efficient NO_(2)RR catalysis systems at high current densities remains a grand challenge. Herein, we report an efficient Zr-NiO catalyst with atomically dispersed Zr-dopants incorporated in NiO lattice, delivering the exceptional NO_(2)RR performance with industriallevel current density(>0.2 A cm^(-2)). In situ spectroscopic measurements and theoretical simulations reveal the construction of ZrNi frustrated Lewis acid-base pairs(FLPs) on Zr-Ni O, which can substantially increase the number of absorbed nitrite(NO_(2)~-),promote the activation and protonation of NO_(2)~- and concurrently hamper the H coverage, boosting the activity and selectivity of Zr-NiO towards the NO_(2)RR. Remarkably, Zr-NiO exhibits the exceptional performance in a flow cell with high Faradaic efficiency for NH_(3) of 94.0% and NH_(3)yield rate of 1,394.1 μmol h^(-1)cm^(-2) at an industrial-level current density of 228.2 m A cm^(-2),placing it among the best NO_(2)RR electrocatalysts for NH_(3) production.

关键词： electrochemical nitrite-to-ammonia conversion frustrated Lewis acid-base pairs(FLPs) in situ spectroscopy theoretical computations

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Lewis Base Catalyzed Selenofunctionalization of Alkynes with Acid-Controlled Divergent Chemoselectivity

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Chinese Journal of Chemistry 2024年第14期42卷 1623-1629页

作者： Ling-Ling chen Ren-Fei Cao Hua ke Zhi-Min chen School of Chemistry and Chemical Engineering Shanghai Key Laboratory for Molecular Engineering of Chiral DrugsShanghai Jiao Tong UniversityShanghai200240 China Engineering Technology Research Center for Environmental Protection Materials Pingxiang UniversityPingxiangJiangxi337055 China

Lewis base catalyzed and Brønsted acid controlled chemodivergent electrophilic selenofunctionalizations of alkynes were developed for the first *** selenium-containing tetrasubstituted alkenes were readily obtained in moderate to excellent yields with complete E/Z *** the substrates were 1-ethynyl naphthol derivatives,linear selenium-containing tetrasubstituted alkenes were produced via intermolecular oxygen nucleophilic attack in the absence of acid additive;in contrast,cyclic selenium-containing tetrasubstituted alkenes were generated through intramolecular carbon nucleophilic capture with the addition of Brønsted acid.

关键词： Alkynes Electrophilic addition Chemoselectivity Lewis base catalysis Selenofunctionalization

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Smart Contract Vulnerability Detection Method Based on Feature Graph and Multiple Attention Mechanisms

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Computers, Materials & Continua 2024年第5期79卷 3023-3045页

作者： Zhenxiang He Zhenyu Zhao ke chen Yanlin Liu School of Cyber Security Gansu University of Political Science and LawLanzhou730070China

The fast-paced development of blockchain technology is ***,the security concerns of smart contracts represent a significant challenge to the stability and dependability of the entire blockchain *** smart contract vulnerability detection primarily relies on static analysis tools,which are less efficient and *** deep learning methods have improved detection efficiency,they are unable to fully utilize the static relationships within ***,we have adopted the advantages of the above two methods,combining feature extraction mode of tools with deep learning ***,we have constructed corresponding feature extraction mode for different vulnerabilities,which are used to extract feature graphs from the source code of smart ***,the node features in feature graphs are fed into a graph convolutional neural network for training,and the edge features are processed using a method that combines attentionmechanismwith gated ***,the revised node features and edge features are concatenated through amulti-head *** result of the splicing is a global representation of the entire feature *** method was tested on three types of data:Timestamp vulnerabilities,reentrancy vulnerabilities,and access control vulnerabilities,where the F1 score of our method reaches 84.63%,92.55%,and 61.36%.The results indicate that our method surpasses most others in detecting smart contract vulnerabilities.

关键词： Blockchain smart contracts deep learning graph neural networks

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