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Neurons derived from human-induced pluripotent stem cells express mu and kappa opioid receptors

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Neural Regeneration Research 2021年第4期16卷 653-658页

作者： Zhi-Hai Ju Xuan Liang Yao-Yao Ren luo-wa shu Yan-Hong Yan Xu Cui Department of Anesthesiology Beijing Tongren HospitalCapital Medical UniversityBeijingChina

Neuroprotection studies have shown that induced pluripotent stem(iPS)cells have the possibility to transform neuroprotection *** the present study,iPS cells were generated from human renal epithelial cells and were then differentiated into *** in the iPScell group were maintained in stem cell *** contrast,cells in the iPS-neuron group were first maintained in neural induction medium and expansion medium containing ROCK inhibitors,and then cultivated in neuronal differentiation medium and neuronal maturation medium to induce the neural stem cells to differentiate into *** expression of relevant markers was compared at different stages of *** staining revealed that cells in the iPS-neuron group expressed the neural stem cell markers SOX1 and nestin on day 11 of induction,and neuronal markers TUBB3 and NeuN on day 21 of *** chain reaction results demonstrated that,compared with the iPS-cell group,TUBB3 gene expression in the iPS-neuron group was increased *** research revealed that,compared with the iPS-cell group,the gene expression and immunoreactivity of mu opioid receptor in the iPS-neuron group were significantly increased(38.3-fold and 5.7-fold,respectively),but those of kappa opioid receptor had only a slight change(1.33-fold and 1.57-fold increases,respectively).Together,these data indicate that human iPS cells can be induced into mu opioid receptor-and kappa opioid receptor-expressing neurons,and that they may be useful to simulate human opioid receptor function in vitro and explore the underlying mechanisms of human conditions.

关键词： brain cells factor in vivo neural differentiation protein stem cells stroke

Visible-light photoredox-catalyzed carboxylation of aryl epoxides with CO_(2)

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Chinese Chemical Letters 2024年第7期35卷 281-284页

作者： Tian-Yu Gao Xiao-Yan Mo shu-Rong Zhang Yuan-Xu Jiang shu-Ping luo Jian-Heng Ye Da-Gang Yu Key Laboratory of Green Chemistry&Technology of Ministry of Education College of ChemistrySichuan UniversityChengdu 610064China State Key Laboratory Breeding Base of Green Chemistry-Synthesis Technology Zhejiang University of TechnologyHangzhou 310014China State Key Laboratory of Elemento-Organic Chemistry Nankai UniversityTianjin 300071China

Herein, we report the first visible-light photoredox-catalyzed carboxylation of aryl epoxides with CO_(2)to synthesize hydroxy acid derivatives. A variety of valuable β-, γ-, δ-, ε–hydroxy acid derivatives are obtained in moderate to high yields under mild conditions. This protocol shows noteworthy functionalgroup compatibility, high chemo-and regioselectivities under transition-metal-free conditions with an inexpensive organo-dye as photosensitizer. Mechanistic studies indicate that the benzylic carbanion is generated as an intermediate via the sequential single electron transfer(SSET) process.

关键词： Carbon dioxide Epoxides Visible-light photoredox catalysis Hydroxy acid Sequential single electron transfer

Construction of Prediction Model of Foodborne Disease Outbreaks and Its Trend Prediction—Guizhou Province,China,2023-2025

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China CDC weekly 2024年第18期6卷 408-408,I0009,409-412,I0010-I0015页

作者： Li Zhang Sufang Xiong shu Zhu Jigui Tian Qingyuan Chen Xiaobo luo Hua Guo Institute of Public Health Surveillance and Evaluation Guizhou Center for Disease Control and PreventionGuiyang CityGuizhou ProvinceChina School of Public Health Guizhou Medical University.Guiyang CityGuizhou ProvinceChina

Objective:Foodborne diseases pose a significant public health concern *** study aims to analyze the correlation between disease prevalence and climatic conditions,forecast the pattern of foodborne disease outbreaks,and offer insights for effective prevention and control strategies and optimizing health resource allocation policies in Guizhou ***:This study utilized theχ^(2) test and four comprehensive prediction models to analyze foodborne disease outbreaks recorded in the Guizhou Foodborne Disease Outbreak system between 2012 and *** best-performing model was chosen to forecast the trend of foodborne disease outbreaks in Guizhou Province,***:Significant variations were observed in the incidence of foodborne disease outbreaks in Guizhou Province concerning various meteorological factors(all P≤0.05).Among all models,the SARIMA-ARIMAX combined model demonstrated the most accurate predictive performance(RMSE:Prophet model=67.645,SARIMA model=3.953,ARIMAX model=26.544,SARIMA-ARIMAX model=26.196;MAPE:Prophet model=42.357%,SARIMA model=37.740%,ARIMAX model=15.289%,SARIMA-ARIMAX model=13.961%).Conclusion:The analysis indicates that foodborne disease outbreaks in Guizhou Province demonstrate distinct seasonal *** is recommended to concentrate prevention efforts during peak *** SARIMA-ARIMAX hybrid model enhances the precision of monthly forecasts for foodborne disease outbreaks,offering valuable insights for future prevention and control strategies.

关键词： Guizhou prevention offering

Strengthening and control of second-phase particle precipitation in ferritic/austenitic/martensitic heat-resistant alloys:a review

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Journal of Iron and Steel Research(International) 2024年第1期31卷 3-23页

作者： Xue-cheng Peng Han-jie Guo Xin-fang Zhang Yi-wa luo Ye Sun Jing Guo Rong-guang Yang Xiao-dan Zheng School of Metallurgical and Ecological Engineering University of Science and Technology Beijing(USTB)Beijing100083China Beijing Key Laboratory of Special Melting and Preparation of High-End Metal Materials University of Science and Technology Beijing(USTB)Beijing100083China Beijing Shougang Gitane New MATERIALS Co. Ltd.Beijing102206China

Heat-resistant alloys with excellent mechanical properties are widely used in various fields,and further improvement in their properties is essential to meet the requirements in new-generation advanced supercritical boilers,nuclear reactors,superheaters,and other new materials *** effectively enhance the comprehensive performance of heat-resistant alloys,second-phase particle strengthening has been widely studied,and in the face of different service envi-ronments of advanced heat-resistant steels,the selection of suitable second-phase particles is essential to maximize the performance of these *** this end,three major types of reinforcing phases in heat-resistant alloys such as carbides,rare earth oxides,and intermetallic compounds are summarized.A comparative analysis of the precipitation behavior of the reinforcing phases with different types as well as the risks and means of controlling their use in service,is *** parameters for the application of various types of second-phase particles in heat-resistant alloys are provided to support the design and preparation of new ultrahigh-performance heat-resistant alloys.

关键词： Heat-resistant alloy Second-phase particle Carbide Rare earth oxide Intermetallic compound Strengthening

Design to enhance sensing performance of ZIF-8 crystals

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Progress in Natural Science:Materials International 2024年第2期34卷 240-250页

作者： Ya-Ru Li Xiuxiu Dong shu-Yi Pan Lin luo Hong-Tao Lei Zhen-Lin Xu Guangdong Provincial Key Laboratory of Food Quality and Safety College of Food Science South China Agricultural University Key Laboratory of Modern Agricultural Equipment and Technology (Jiangsu University) Ministry of Education School of Agricultural Engineering Jiangsu University

Metal-organic frameworks（MOFs） are a large class of crystalline porous materials that composed of organic ligands and metal ions,of which zeolitic imidazolate frameworks（ZIFs） are a broad *** most wellknown ZIF-like material is ZIF-8 crystals,which have been the subject of extensive research for ***-8 crystals have been synthesized under various conditions for application in the fields of sensing,drug delivery,and *** paper provides a brief introduction to the preparation methods,formation processes,and formation mechanisms of ZIF-8 crystals in different media,and then explains the effects of different precursor conditions(type of Zn2+,ratio of raw materials,and type of solvent) on ZIF-8 crystals in terms of formation ***,current reports on the application of ZIF-8-based chemiresistive gas sensors,electrochemical,fluorescent and colorimetric sensors are also ***,ZIF-8 crystals with good catalytic properties will be obtained based on rational design for promoting the application in different fields of the sensors.

关键词： Formation mechanism Regulation Sensing performance Synthesis method ZIF-8

Progression from ductal carcinoma in situ to invasive breast cancer:molecular features and clinical significance

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Signal Transduction and Targeted Therapy 2024年第5期9卷 1841-1868页

作者： Jing wang Baizhou Li Meng luo Jia Huang Kun Zhang shu Zheng Suzhan Zhang Jiaojiao Zhou The Key Laboratory of Cancer Prevention and Intervention China National Ministry of Educationthe Second Affiliated HospitalZhejiang University School of MedicineHangzhouChina Department of Breast Surgery and Oncology the Second Affiliated HospitalZhejiang University School of MedicineHangzhouChina Zhejiang Provincial Clinical Research Center for Cancer HangzhouChina Department of Pathology the Fourth Affiliated HospitalZhejiang University School of MedicineYiwuChina Department of Plastic Surgery the Second Affiliated HospitalZhejiang University School of MedicineHangzhouChina Cancer Center Zhejiang UniversityHangzhouChina

Ductal carcinoma in situ(DCIS)represents pre-invasive breast *** untreated cases,25-60%DCIS progress to invasive ductal carcinoma(IDC).The challenge lies in distinguishing between non-progressive and progressive DCIS,often resulting in over-or under-treatment in many *** increasing screen-detected DCIS in these years,the nature of DCIS has aroused worldwide attention.A deeper understanding of the biological nature of DCIS and the molecular journey of the DCIS-IDC transition is crucial for more effective clinical ***,we reviewed the key signaling pathways in breast cancer that may contribute to DCIS initiation and *** also explored the molecular features of DCIS and IDC,shedding light on the progression of DCIS through both inherent changes within tumor cells and alterations in the tumor *** addition,valuable research tools utilized in studying DCIS including preclinical models and newer advanced technologies such as single-cell sequencing,spatial transcriptomics and artificial intelligence,have been systematically ***,we thoroughly discussed the clinical advancements in DCIS and IDC,including prognostic biomarkers and clinical managements,with the aim of facilitating more personalized treatment strategies in the *** on DCIS has already yielded significant insights into breast carcinogenesis and will continue to pave the way for practical clinical applications.

关键词： clinical breast alterations

Juvenile cardiomyopathy with dystrophin deficiency

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Genes & Diseases 2024年第3期11卷 30-33页

作者： Yuhui luo Qinglan shu Yi wang Min Gu Hao Zhang Siqi Hong Rui wang Lixue Yin Department of Cardiology Chongqing General HospitalChongqing 401147China Department of Cardiovascular Ultrasound and Noninvasive Cardiology Sichuan Provincial People's HospitalUniversity of Electronic Science and Technology of China(UESTC)ChengduSichuan 610072China Department of RadiologyChongqing General HospitalChongqing 401147China Department of Neurology Children's Hospital of Chongqing Medical UniversityChongqing 400014China School of Medicine Zunyi Medical UniversityZunyiGuizhou 563000China

Pseudohypertrophic muscular dystrophy is a lethal X-linked recessive neuromuscular disorder caused by mutations in the dystrophin *** gene encodes a cytoskeletal protein that is extensively expressed in muscle cells and that enables the strength,stability,and functionality of *** dystrophy can be grouped into two different categories based on the mutational rate and clinical severity,Duchenne muscular dystrophy(DMD)and Becker muscular dystrophy(BMD).DMD is the most common and the more severe type of *** patients usually become wheelchair-bound by the age of 12 years and die in their late teens to early twenties.^(1)In contrast,BMD is relatively less severe and the patients can potentially have alonger lifeexpectancy.

关键词： dystrophin dystrophy Becker

Efficient hydrogenolysis of fructose to 1,2-propanediol over bifunctional Ru-WO_(x)-MgO_(y) catalysts under mild reaction conditions via enhancing the chemoselective cleavage of C-C bonds

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Journal of Energy Chemistry 2024年第5期92卷 311-321页

作者： shuang luo Tie shu Min Mao Haijie Yu Yuxin Zheng Daqian Ding Lingmei Liu Kexin Yao Jianjian wang School of Chemistry and Chemical Engineering State Key Laboratory of Coal Mine Disaster Dynamics and ControlInstitute of Advanced Interdisciplinary StudiesMulti-scale Porous Materials CenterChongqing UniversityChongqing 401331China Key Laboratory for Efficient Conversion and Circular Economy of Coal Chemical Engineering CollegeInner Mongolia University of TechnologyHohhot 010051Inner MongoliaChina

Selective conversion of fructose to 1,2-propanediol(1,2-PDO)is considered as a sustainable and cost-effective alternative to petroleum-based processes,however,this approach still faces challenges associated with low efficiency and harsh reaction ***,we have successfully synthesized a novel bifunctional Ru-WO_(x)-MgO_(y) catalyst through a facile'one-pot'solvothermal ***,this catalyst exhibits exceptional catalytic performances in the conversion of fructose to 1,2-PDO under mild reaction *** yield of 1,2-PDO is up to 56.2%at 140°C for 4 h under an ultra-low hydrogen pressure of only 0.2 MPa,surpassing the reported results in recent literature(below 51%).Comprehensive characterizations and density functional theory(DFT)calculations reveal that the presence of oxygen vacancies in the Ru-WO_(x)-MgO_(y) catalyst,serving as active acidic sites,facilitates the chemoselective cleavage of C-C bonds in fructose,which leads to the generation of active intermediates and ultimately resulted in the high yield of 1,2-PDO.

关键词： Biomass Fructose 1,2-Propanediol Retroaldol condensation Heterogenous catalysis

Detection and analysis of landslide geomorphology based on UAV vertical photogrammetry

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Journal of Mountain Science 2024年第4期21卷 1190-1214页

作者： BI Rui GAN shu YUAN Xiping LI Kun LI Raobo luo Weidong CHEN Cheng GAO Sha HU Lin ZHU Zhifu School of Land and Resources Engineering Kunming University of Science and TechnologyKunming 650093China Plication Engineering Research Center of Spatial Information Surveying and Mapping Technology in Plateau and Mountainous Areas Set by Universities in Yunnan Province Kunming 650093China West Yunnan University of Applied Sciences Key Laboratory of Mountain Real Scene Point Cloud Data Processing and Application for Universities in Yunnan ProvinceDali 671006China

High-resolution landslide images are required for detailed geomorphological analysis in complex topographic environment with steep and vertical landslide *** study proposed a vertical route planning method for unmanned aerial vehicles(UAVs),which could achieve rapid image collection based on strictly calculated route *** effectiveness of this method was verified using a DJI Mavic 2 Pro,obtaining high-resolution landslide images within the Dongchuan debris flow gully,in the Xiaojiang River Basin,Dongchuan District,Yunnan,China.A three-dimensional(3D)model was constructed by the structure-from-motion and multi-view stereo(SfM-MVS).Micro-geomorphic features were analyzed through visual interpretation,geographic information system(GIS),spatial analysis,and mathematical statistics *** results demonstrated that the proposed method could obtain comprehensive vertical information on landslides while improving measurement *** 3D model was constructed using the vertically oriented flight route to achieve centimeter-level accuracy(horizontal accuracy better than 6 cm,elevation accuracy better than 3 cm,and relative accuracy better than 3.5 cm).The UAV technology could further help understand the micro internal spatial and structural characteristics of landslides,facilitating intuitive acquisition of surface *** slope of landslide clusters ranged from 36°to 72°,with the majority of the slope facing east and *** elevation levels were relatively consistent while middle to lower elevation levels gradually decreased from left to right with significant variations in lower elevation *** the rainy season,surface runoff was abundant,and steep topography exacerbated changes in surface *** route method is suitable for unmanned aerial vehicle(UAV)landslide surveys in complex mountainous *** geomorphological analysis methods used will provide references for identifying and describing topographic

关键词： UAV Landslide Vertical route SfM-MVS Topographic features