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Precision Chemistry 2024年第3期2卷 112-119页

作者： yuheng wu Xiangdong Kong Yechao Su Jiankang Zhao Yiling Ma Tongzheng Ji Di wu Junyang Meng Yan Liu Zhigang Geng Jie Zeng Hefei National Research Center for Physical Sciences at the Microscale Key Laboratory of Strongly-Coupled Quantum Matter Physics of Chinese Academy of SciencesKey Laboratory of Surface and Interface Chemistry and Energy Catalysis of Anhui Higher Education InstitutesDepartment of Chemical PhysicsUniversity of Science and Technology of ChinaHefeiAnhui 230026P.R.China School of Chemistry&Chemical Engineering Anhui University of TechnologyMa’anshanAnhui 243002P.R.China

Electroreduction of nitrate(NO_(3)-)to ammonia(NH_(3))is an environmentally friendly route for NH_(3)production,serving as an appealing alternative to the Haber-Bosch process.Recently,various noble metal-based electrocatalysts have been reported for electroreduction of NO_(3)-.However,the application of pure metal electrocatalysts is still limited by unsatisfactory performance,owing to the weak adsorption of nitrogen-containing intermediates on the surface of pure metal electrocatalysts.In this work,we report thiol ligand-modified Au nanoparticles as the effective electrocatalysts toward electroreduction of NO_(3)-.Specifically,three mercaptobenzoic acid(MBA)isomers,thiosalicylic acid(ortho-MBA),3-mercaptobenzoic acid(meta-MBA),and 4-mercaptobenzoic acid(para-MBA),were employed to modify the surface of the Au nanocatalyst.During the NO_(3)-electroreduction,para-MBA modified Au(denoted as para-Au/C)displayed the highest catalytic activity among these Au-based catalysts.At-1.0 V versus reversible hydrogen electrode(vs RHE),para-Au/C exhibited a partial current density for NH_(3)of 472.2 mA cm^(-2),which was 1.7 times that of the pristine Au catalyst.Meanwhile,the Faradaic efficiency(FE)for NH_(3)reached 98.7%at-1.0 V vs RHE for para-Au/C.The modification of para-MBA significantly improved the intrinsic activity of the Au/C catalyst,thus accelerating the kinetics of NO_(3)-reduction and giving rise to a high NH_(3)yield rate of para-Au/C.

关键词： Ammonia synthesis NO_(3)-electroreduction Au nanoparticles thiol ligand modification electronic structure

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Addressing the Chengjiang conundrum: A palaeoecological view on the rarity of hurdiid radiodonts in this most diverse early Cambrian Lagerstatte

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Geoscience Frontiers 2022年第6期13卷 1-15页

作者： Yu wu Stephen Pates Jiaxin Ma Weiliang Lin yuheng wu Xingliang Zhang Dongjing Fu State Key Laboratory of Continental Dynamics Shaanxi Key Laboratory of Early Life and Environmentsand Department of GeologyNorthwest UniversityXi’an 710069China Department of Zoology University of CambridgeDowning StreetCambridge CB23EJUnited Kingdom

Over one hundred arthropod fossil species have been described from the famous Chengjiang Lagerst?tte(South China, Cambrian Stage 3, ca. 518 Ma) including a diverse assemblage of radiodonts–a group containing Anomalocaris and its relatives. These iconic stem-group euarthropods include some of the largest animals of the time, and some are known from hundreds of specimens. A longstanding conundrum has been the rarity or absence of hurdiids from Cambrian Series 2 Lagerst?tten like Chengjiang. This is because radiodonts are generally common in such deposits and the oldest radiodont ever discovered is a hurdiid. Furthermore, this family displays the widest geographic and temporal ranges of all radiodont families, and the highest diversity. Here we document the first hurdiid frontal appendages from Chengjiang, which display unique features within the family and may provide insights for understanding the character evolution of hurdiid appendages. The palaeoenvironmental distribution of hurdiids suggests that the rarity of hurdiids in Chengjiang may be due to a preference for deeper water environments,and the later success of this family from the wuliuan onwards may relate to their ability to tolerate cooler water temperatures than other radiodont families. The palaeogeographical, palaeoenvironmental, and stratigraphical patterns observed in hurdiids maybe caused in part by the limited distributions of Konservat-Lagerst?tten in the Cambrian as well.

关键词： Radiodonta Hurdiidae Panarthropoda Palaeobiogeography Palaeoenvironment Chengjiang Lagerstatte

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Physiological Dynamics and Transcriptomic Analysis of Cut Roses‘Carola’Treated with KNO_(3)

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Phyton-International Journal of Experimental Botany 2023年第12期92卷 3267-3290页

作者： Songmei Liu yuheng wu Hongmei Li Dongli Cai Huiling Liang Changchun Ye Shenggen He College of Agriculture&Biology Zhongkai University of Agriculture and EngineeringGuangzhou510225China

The consumption of cut roses(Rosa hybrida)has always ranked first in the world.However,it is vulnerable to rapid petal and leaf wilting due to leaf stomatal water loss,which seriously affects its ornamental quality and economic value.Stomatal movement,a key in plant physiological processes,is influenced by potassium and nitrate.Advancing comprehension of its physiological and molecular mechanism holds promise for preserving the freshness of cut roses.This study observed the impacts of different concentrations of KNO_(3) vase treatments on stomatal opening and water loss in cut rose‘Carola’leaves,as well as their transcriptional responses to KNO_(3).Water loss rates were influenced by KNO_(3) concentrations,with the 25 and 75 mmol/L treatments exhibiting the highest water loss rates.The stomatal aperture reached its widest value when treated with 75 mmol/L KNO_(3).Transcriptional sequencing analysis was performed to identify differentially expressed genes(DEGs)of which 5456 were up-regulated,and 6607 were down-regulated associated with photosynthesis,starch and sucrose metabolism,metabolic pathways,plant-pathogen interaction,plant hormone signal transduction,and related pathways.246 DEGs were selected related to response to KNO_(3) treatment,of which gene ontology(GO)enrichment were nitrate and terpenoid metabolism,ion transport,and response to stimuli.Further heatmap analysis revealed that several genes related to nitrate transport a metabolism,K+transport,vacuoles,and aquaporin were in close association with the response to KNO_(3) treatment.Weighted gene co-expression network analysis(WGCNA)revealed that hub genes,including LAX2,TSJT1,and SCPL34 were identified in turquoise,black,and darkgreen module.Transcription factors such as NAC021,CDF3,ERF053,ETR2,and ARF6 exhibited regulatory roles in the response to KNO_(3) treatment under light conditions.These findings provide valuable insights into the physiological and molecular mechanisms underlying the response of cut rose leaves to KNO_(3) treatment.

关键词： Cut rose stomatal opening KNO_(3) transcriptome water loss

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新型城镇化与乡村全面振兴有机结合:内在机理与政策展望

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中州学刊 2024年第2期 30-38页

作者：郭冬梅吴雨恒中央财经大学经济学院北京100081

推进新型城镇化与乡村全面振兴有机结合,是新时代背景下进一步推动城乡融合发展的重大部署。新型城镇化和乡村振兴作为实现经济社会高质量发展的两大战略,并不是相互孤立的,而是互为支撑、相辅相成的。推动以县城为载体的新型城镇化,处... 详细信息

推进新型城镇化与乡村全面振兴有机结合,是新时代背景下进一步推动城乡融合发展的重大部署。新型城镇化和乡村振兴作为实现经济社会高质量发展的两大战略,并不是相互孤立的,而是互为支撑、相辅相成的。推动以县城为载体的新型城镇化,处理好县城与乡村、县城与大城市这两对关系,并加快实现劳动力、土地等要素在城乡间的优化配置,有助于统筹新型城镇化和乡村全面振兴,形成城乡融合发展新格局。为此,需要进一步深化城乡发展体制机制改革,推进城乡要素优化配置和空间布局调整,因地制宜,协同施策,实现城乡融合发展。

关键词：乡村全面振兴新型城镇化有机结合内在机理

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基于遥感和机器学习的中国典型城市碳排放驱动因子及预测分析

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气象与环境学报 2024年第1期40卷 105-112页

作者：吴宇恒白景昌中国遥感应用协会北京100094 北京航天世景信息技术有限公司北京100089

采用国家统计数据和遥感夜间灯光数据,通过对数平均迪氏指数(LMDI)对15个典型城市的碳排放影响因素进行贡献率分析,并构建了3组变量用于机器学习ridge和Lasso回归模型的预测分析。结果表明:城市生产总值、能源消费量(ES)、人口(P)、房... 详细信息

采用国家统计数据和遥感夜间灯光数据,通过对数平均迪氏指数(LMDI)对15个典型城市的碳排放影响因素进行贡献率分析,并构建了3组变量用于机器学习ridge和Lasso回归模型的预测分析。结果表明:城市生产总值、能源消费量(ES)、人口(P)、房地产开发施工面积(RECA)、夜间灯光强度(NL)、货物运输量(CT)和旅客运输量(PT)等7个因子对CO_(2)排放起促进作用,能源消费结构(EI)和第三产业占比(TIR)对CO_(2)排放起抑制作用。城市的成熟度越高,产业越丰富,则碳排放的影响因子越多样。回归预测模型ridge和Lasso在变量组合1至组合3中模拟结果与测试数据集的相关系数均为0.8以上,其中组合1结果最好,其次是组合2,最后是组合3。

关键词：遥感机器学习碳排放影响因子

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DNATyper mtDNA-SNP60^(TM)试剂盒在案件中的应用研究

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刑事技术 2024年第3期49卷 255-261页

作者：杨乐陈滢吴俞衡石妍齐朝阳孔祥仕马温华哈尔滨市公安局刑事技术支队哈尔滨150010 北京通达首诚司法鉴定所北京100192 北京市公安局房山分局北京102488 公安部鉴定中心北京市现场物证检验工程技术研究中心北京100038 吉首大学旅游学院生态旅游湖南省重点实验室湖南张家界427000

本文探讨DNATyper mtDNA-SNP60^(TM)试剂盒在案件中应用的可行性。应用DNATyper mtDNASNP60^(TM)试剂盒对100个汉族无关个体和20组全同胞进行mtDNA SNP检验;取25 pg/μL马、牛、羊、猪、鸡、鸭、猫、狗、兔、鼠和大肠杆菌的DNA样品进行... 详细信息

本文探讨DNATyper mtDNA-SNP60^(TM)试剂盒在案件中应用的可行性。应用DNATyper mtDNASNP60^(TM)试剂盒对100个汉族无关个体和20组全同胞进行mtDNA SNP检验;取25 pg/μL马、牛、羊、猪、鸡、鸭、猫、狗、兔、鼠和大肠杆菌的DNA样品进行种属特异性测试;取5、10、20、40μmol/L血红素进行抗抑制性测试;取两个批次的DNATyper mtDNA-SNP60^(TM)试剂盒经反复冻融10次后进行稳定性测试;分别应用VeriFiler^(TM)Plus PCR扩增试剂盒和DNATyper mtDNA-SNP60^(TM)试剂盒对100份陈旧、腐败、降解检材进行检验。结果表明,100个汉族无关个体均获得清晰的mtDNA SNP分型结果,其检验结果与通过mtDNA测序获得的结果完全一致;100个汉族无关个体含有100种不同的单倍型;20组全同胞中每组个体之间mtDNA SNP分型结果相同;DNATyper mtDNA-SNP60^(TM)试剂盒对马、牛、羊、猪、鸡、鸭、猫、狗、兔、鼠和大肠杆菌的DNA样品进行检测,均未出现特异性分型;当血红素浓度≤40μmol/L时,所有mtDNA SNP位点均获得正确分型;两个批次的DNATyper mtDNA-SNP60^(TM)试剂盒经反复冻融10次后,所有mtDNA SNP位点均可正确分型;对于100份陈旧、腐败、降解检材,STR检出率为55%,mtDNA SNP的检出率为86%,mtDNA SNP的检出率显著高于STR。当模板DNA浓度大于5 pg/μL时,DNATyper mtDNA-SNP60^(TM)试剂盒能得到完整的分型谱图。综上,DNATyper mtDNA-SNP60^(TM)试剂盒可应用于陈旧、腐败、降解检材的检验,具有很好的实战应用价值。

关键词：法医遗传学 DNATyper mtDNA-SNP60^(TM)试剂盒线粒体DNA 单核苷酸多态性 VeriFiler^(TM)Plus PCR扩增试剂盒短串联重复序列

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代表性春大豆种质资源叶片蔗糖含量全基因组关联分析

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大豆科学 2024年第1期43卷 13-20页

作者：王象然张大勇郑伟张振宇徐杰飞赵星棋孙长恒吴雨恒黑龙江省农业科学院佳木斯分院/国家大豆产业技术体系佳木斯综合试验站/三江平原主要作物育种栽培重点实验室黑龙江佳木斯154007 东北农业大学农学院黑龙江哈尔滨150030

蔗糖是植物糖类源库运输的主要形式,是植物生长中重要的能源物质。本研究利用196份已重测序的国内外品种构成的自然群体为试验材料,测定该群体苗期叶片蔗糖含量,结合混合线性模型(Mixed Linear Model)进行全基因组关联分析。结果显示:... 详细信息

蔗糖是植物糖类源库运输的主要形式,是植物生长中重要的能源物质。本研究利用196份已重测序的国内外品种构成的自然群体为试验材料,测定该群体苗期叶片蔗糖含量,结合混合线性模型(Mixed Linear Model)进行全基因组关联分析。结果显示:根据阈值筛选得到5个显著相关SNP位点,分别位于第15和20号染色体上,且在SNP位点上下游各100 kb搜索到27个相关基因。通过GO功能富集分析、KEGG代谢通路富集分析及基因功能注释,筛选得到5个可能与大豆叶片蔗糖含量相关的候选基因,并通过相对表达量分析鉴定得到Glyma.15G023800、Glyma.15G024000、Glyma.15G024600共3个与大豆叶片蔗糖含量相关基因。研究结果为探究大豆叶片蔗糖含量遗传机理提供理论参考。

关键词：大豆叶片蔗糖全基因组关联分析候选基因

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鼠尾草酸影响线粒体功能抑制破骨细胞分化

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中国组织工程研究 2025年第2期29卷 245-253页

作者：李海山吴宇桁梁梓炫张诗茵张朕麦彬邓威李永贤唐永超张顺聪袁凯广州中医药大学第一附属医院广东省广州市510405 广东省中医临床研究院广东省广州市510405 广州中医药大学岭南医学研究中心广东省广州市510405 广州中医药大学第七临床医学院广东省深圳市518100

背景:鼠尾草酸是在迷迭香中发现的一种生物活性化合物,已被证明可减少炎症和活性氧,但在破骨细胞分化进程中的作用机制尚不明确。目的:探讨鼠尾草酸对破骨细胞活化、活性氧产生及线粒体功能的影响。方法:体外提取培养小鼠来源的原代骨... 详细信息

背景:鼠尾草酸是在迷迭香中发现的一种生物活性化合物,已被证明可减少炎症和活性氧,但在破骨细胞分化进程中的作用机制尚不明确。目的:探讨鼠尾草酸对破骨细胞活化、活性氧产生及线粒体功能的影响。方法:体外提取培养小鼠来源的原代骨髓源巨噬细胞,使用CCK-8细胞活力实验检测不同浓度(0,10,15,20,25和30μmol/L)鼠尾草酸对骨髓源巨噬细胞的增殖和毒性作用,筛选出安全作用浓度。将骨髓源巨噬细胞按照浓度梯度分组培养,核因子κB受体活化因子配体诱导破骨细胞5-7 d后,分别进行抗酒石酸酸性磷酸酶染色、F-actin染色、H2DCFDA探针和线粒体活性氧、Mito-Tracker荧光检测,观察鼠尾草酸对破骨细胞分化和功能的影响;通过Western Blot及RT-PCR实验检测鼠尾草酸对核因子κB受体活化因子配体诱导的丝裂原激活蛋白激酶信号通路上下游基因和蛋白的影响。结果与结论:①抗酒石酸酸性磷酸酶和F-actin染色显示:鼠尾草酸以浓度依赖性地抑制体外破骨细胞分化及细胞骨架肌动蛋白环形成,其中鼠尾草酸30μmol/L组的抑制作用最显著;与其他干预时期相比,鼠尾草酸在破骨分化的早期(第1-3天)抑制作用最显著;②H2DCFDA探针和线粒体活性氧、Mito-Tracker荧光显示:鼠尾草酸抑制细胞活性氧和线粒体内活性氧的产生,同时减少线粒体膜电位,影响线粒体的功能;③Western Blot及RT-PCR结果显示:鼠尾草酸可抑制与破骨分化相关的NFATc1、CTSK、MMP9、C-fos蛋白的表达,下调与破骨分化相关的NFATc1、Atp6vod2、ACP5、CTSK和C-fos基因的表达;鼠尾草酸还可以增强抗氧化酶蛋白的表达,减少破骨分化过程中活性氧的产生;④鼠尾草酸抑制P38/ERK/JNK蛋白的磷酸化修饰,通过激活MAPK信号通路抑制骨髓源巨噬细胞破骨细胞分化。

关键词：鼠尾草酸活性氧线粒体活性 RANKL 破骨细胞

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All-trans retinoic acid alleviates transmissible gastroenteritis virus-induced intestinal inflammation and barrier dysfunction in weaned piglets

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Journal of Animal Science and Biotechnology 2024年第3期15卷 1131-1144页

作者： Junning Pu Daiwen Chen Gang Tian Jun He Ping Zheng Zhiqing Huang Xiangbing Mao Jie Yu yuheng Luo Junqiu Luo Hui Yan Aimin wu Bing Yu Institute of Animal Nutrition Sichuan Agricultural UniversityChengdu 611130SichuanPeople’s Republic of China Key Laboratory of Animal Disease-Resistance Nutrition Ministry of EducationMinistry of Agriculture and Rural AffairsKey Laboratory of Sichuan Province611130 ChengduSichuanPeople’s Republic of China

Background Transmissible gastroenteritis virus(TGEV)is one of the main pathogens causing severe diarrhea of pig-lets.The pathogenesis of TGEV is closely related to intestinal inflammation.All-trans retinoic acid(ATRA)is the main active metabolite of vitamin A,which has immunomodulatory and anti-inflammatory properties.However,it is unclear whether ATRA can alleviate TGEV-induced intestinal inflammation and barrier dysfunction in piglets.This study aimed to investigate the effects of ATRA on growth performance,diarrhea,intestinal inflammation and intesti-nal barrier integrity of TGEV-challenged piglets.Methods In a 19-d study,32 weaned piglets were randomly divided into 4 treatments:Control group(basal diet),TGEV group(basal diet+TGEV challenge),TGEV+ATRA5 group(basal diet+5 mg/d ATRA+TGEV challenge)and TGEV+ATRA15 group(basal diet+15 mg/d ATRA+TGEV challenge).On d 14,piglets were orally administered TGEV or the sterile medium.Results Feeding piglets with 5 and 15 mg/d ATRA alleviated the growth inhibition and diarrhea induced by TGEV(P<0.05).Feeding piglets with 5 and 15 mg/d ATRA also inhibited the increase of serum diamine oxidase(DAO)activ-ity and the decrease of occludin and claudin-1 protein levels in jejunal mucosa induced by TGEV,and maintained intestinal barrier integrity(P<0.05).Meanwhile,5 mg/d ATRA feeding increased the sucrase activity and the expres-sions of nutrient transporter related genes(GLUT2 and SLC7A1)in jejunal mucosa of TGEV-challenged piglets(P<0.05).Furthermore,5 mg/d ATRA feeding attenuated TGEV-induced intestinal inflammatory response by inhibit-ing the release of interleukin(IL)-1β,IL-8 and tumor necrosis factor-α(TNF-α),and promoting the secretion of IL-10 and secretory immunoglobulin A(sIgA)(P<0.05).Feeding 5 mg/d ATRA also down-regulated the expressions of Toll-like receptors and RIG-I like receptors signaling pathway related genes(TLR3,TLR4,RIG-I,MyD88,TRIF and MAVS)and the phosphorylation level of nuclear factor-κB-p65(NF-κB p65),and up-regulated the inhibitor kappa B alpha(IκBα)p

关键词： All-trans retinoic acid Inflammation Intestinal barrier Piglets Transmissible gastroenteritis virus

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AKT2^(S128)/CCTα^(S315/319/323)-positive cancer-associated fibroblasts (CAFs) mediate focal adhesion kinase (FAK) inhibitors resistance via secreting phosphatidylcholines (PCs)

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Signal Transduction and Targeted Therapy 2024年第2期9卷 782-796页

作者： Jie Chen Lingyuan Zhang yuheng Zhu Di Zhao Jing Zhang Yanmeng Zhu Jingyuan Pang Yuanfan Xiao Qingnan wu Yan Wang Qimin Zhan Key Laboratory of Carcinogenesis and Translational Research(Ministry of Education/Beijing) Laboratory of Molecular OncologyPeking University Cancer Hospital&Institute100142 BeijingChina Peking University International Cancer Institute Peking University100191 BeijingChina Research Unit of Molecular Cancer Research Chinese Academy of Medical SciencesBeijingChina Soochow University Cancer Institute Suzhou 215000China Institute of Cancer Research Shenzhen Bay LaboratoryShenzhen 518107China

Abnormal metabolism is regarded as an oncogenic hallmark related to tumor progression and therapeutic resistance.Present study employed multi-omics,including phosphoproteomics,untargeted metabolomics and lipidomics,to demonstrate that the pAKT2 Ser128 and pCCTαSer315/319/323-positive cancer-associated fibroblasts(CAFs)substantially release phosphatidylcholines(PCs),contributing to the resistance of focal adhesion kinase(FAK)inhibitors in esophageal squamous cell carcinoma(ESCC)treatment.Additionally,we observed extremely low levels of FAK Tyr397 expression in CAFs,potentially offering no available target for FAK inhibitors playing their anti-growth role in CAFs.Consequently,FAK inhibitor increased the intracellular concentration of Ca2+in CAFs,promoting the formation of AKT2/CCTαcomplex,leading to phosphorylation of CCTαSer315/319/323 sites and eventually enhancing stromal PC production.This activation could stimulate the intratumoral Janus kinase 2(JAK2)/Signal transducer and activator of transcription 3(STAT3)pathway,triggering resistance to FAK inhibition.Analysis of clinical samples demonstrated that stromal pAKT2 Ser128 and pCCTαSer315/319/323 are related to the tumor malignancy and reduced patient survival.Pseudo-targeted lipidomics and further validation cohort quantitatively showed that plasma PCs enable to distinguish the malignant extent of ESCC patients.In conclusion,inhibition of stroma-derived PCs and related pathway could be possible therapeutic strategies for tumor therapy.

关键词： CAFs metabolism resistance

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