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Anticancer activity and DNA binding property of the trimers of triphenylethylene-coumarin hybrids

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Chinese Chemical Letters 2016年第11期27卷 1708-1716页

作者： Li Zhang yu-chao yao Meng-Ying Gao Rui-Xue Rong Ke-Rang Wang Xiao-Liu Li Hua Chen Key Laboratory of Chemical Biology of Hebei Province College of Chemistry and Environmental ScienceHebei University

Novel trimers of triphenylethylene-coumarin hybrid containing two amino side chains （5a-d and 6a-d） were designed and synthesized by the condensation of 1,3,5-benzenetricarboxylic acid with the varied amino monomeric hybrids catalyzed by HATU and DIPEA at room temperature. The extended trimeric compound 6a （R = piperidinyl） exhibited significant anti-proliferative activity against three cancer cells at IC5o of near 10 μmol/L. UV-vis, fluorescence （lifetime） and thermal denaturation exhibited that 6a had significant interaction with Ct-DNA by the intercalative mode of binding. The order of their anti- proliferative activities was 6（a, d）〉 5（a, d） and （5-6）a 〉（5-6）d, respectively, in accordance with that of their DNA binding properties, which suggested that the prolonged linker （six carbons） and piperidinyl ~roun on the side chains are beneficial to DNA binding and the anti-tumor activity.

关键词： Coumarin Triphenylethylene TrimerAnti-tumor activity DNA binding property

Broncholithiasis-induced bronchial artery fistula and pulmonary artery fistula in an aged female： a case report

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Chinese Medical Journal 2010年第4期123卷 507-509页

作者： SHANG Yan BAI Chong HUANG Hai-dong DONG yu-chao HUANG Yi yao Xiao-peng LI Qiang Department of Respiratory Medicine Changhai Hospital Second Military Medical University Shanghai 200433 China

Broncholithiasis, a rare disorder of the respiratory system, is usually caused by pulmonary fungal infection and tuberculosis occurring in the early years of its victims. Pulmonary fungal infection and tuberculosis can lead to calcification of the hilar and mediastinal lymph nodes; the calcified lymph nodes erode the nearby bronchi and cause clinical and imaging abnormalities. When the calcified lymph nodes press or invade the bronchial lumens, changing the bronchial lumen shape, stimulating the mucous membrane and eroding the luminal wall, clinical manifestations of penetrating broncholithiasis, such as cough, sputum, hemoptysis, lithoptysis, recurrent pneumonia, peribronchial fistula,

关键词： broncholithiasis clinical manifestations diagnosis treatment

Nanostructured ZnO/BiVO_(4)I-scheme heterojunctions for piezocatalytic degradation of organic dyes via harvesting ultrasonic vibration energy

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International Journal of Minerals,Metallurgy and Materials 2025年第2期32卷 488-497页

作者： Yiling Li Xiaoyao yu Yingjie Zhou yao Lin Ying Wu Key Laboratory of the Ministry of Education for Advanced Catalysis Materials College of Chemistry and Materials ScienceZhejiang Normal UniversityJinhua 321004China

BiVO_(4)porous spheres modified by ZnO were designed and synthesized using a facile two-step *** resulting ZnO/BiVO_(4)composite catalysts have shown remarkable efficiency as piezoelectric catalysts for degrading Rhodamine B(RhB)unde mechanical vibrations,they exhibit superior activity compared to pure *** 40wt%ZnO/BiVO_(4)heterojunction composite displayed the highest activity,along with good stability and *** enhanced piezoelectric catalytic activity can be attributed to the form ation of an I-scheme heterojunction structure,which can effectively inhibit the electron-hole ***,hole(h+)and superoxide radical(·O_(2)^(-))are proved to be the primary active ***,ZnO/BiVO_(4)stands as an efficient and stable piezoelectric catalyst with broad potential application in the field of environmental water pollution treatment.

关键词： piezoelectric catalytic heterojunction dye degradation ultrasonic vibration

FUBP3 mediates the amyloid-β-induced neuronal NLRP3 expression

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Neural Regeneration Research 2025年第7期20卷 2068-2083页

作者： Jing yao yuan Li Xi Liu Wenping Liang yu Li Liyong Wu Zhe Wang Weihong Song The National Clinical Research Center for Geriatric Disease Xuanwu HospitalCapital Medical UniversityBeijingChina Department of Neurology The First Affiliated Hospital of Zhengzhou UniversityZhengzhouHenan ProvinceChina Department of Neurosurgery Xuanwu HospitalCapital Medical UniversityBeijingChina Department of Pediatrics The Second Affiliated Hospital and Yuying Children’s HospitalKey Laboratory of Alzheimer’s Disease of Zhejiang ProvinceInstitute of AgingWenzhou Medical UniversityWenzhouZhejiang ProvinceChina Oujiang Laboratory(Zhejiang Laboratory for Regenerative Medicine Visionand Brain Health)WenzhouZhejiang ProvinceChina

Alzheimer's disease is characterized by deposition of amyloid-β,which forms extracellular neuritic plaques,and accumulation of hyperphosphorylated tau,which aggregates to form intraneuronal neurofibrillary tangles,in the *** NLRP3 inflammasome may play a role in the transition from amyloid-βdeposition to tau phosphorylation and *** NLRP3 is primarily found in brain microglia,and tau is predominantly located in neurons,it has been suggested that NLRP3 expressed by microglia indirectly triggers tau phosphorylation by upregulating the expression of pro-inflammatory ***,we found that neurons also express NLRP3 in vitro and in vivo,and that neuronal NLRP3 regulates tau *** biochemical methods,we mapped the minimal NLRP3 promoter and identified FUBP3 as a transcription factor regulating NLRP3 expression in *** primary neurons and the neuroblastoma cell line Neuro2A,FUBP3 is required for endogenous NLRP3 expression and tau phosphorylation only when amyloid-βis *** the brains of aged wild-type mice and a mouse model of Alzheimer's disease,FUBP3 expression was markedly increased in cortical *** analysis suggested that FUBP3 plays a role in neuron-mediated immune *** also found that FUBP3 trimmed the 5′end of DNA fragments that it bound,implying that FUBP3 functions in stress-induced *** findings suggest that neuronal NLRP3 may be more directly involved in the amyloid-β-to–phospho-tau transition than microglial NLRP3,and that amyloid-βfundamentally alters the regulatory mechanism of NLRP3 expression in *** that FUBP3 was only expressed at low levels in young wild-type mice and was strongly upregulated in the brains of aged mice and Alzheimer's disease mice,FUBP3 could be a safe therapeutic target for preventing Alzheimer's disease progression.

关键词： 5′end trimming Alzheimer's disease amyloid-beta amyloid-β-dependent transcription FUBP3 inflammasome inflammation neuron NLRP3 tau transcription factor

Mainchain conformation ordering self-assembly tailored room temperature phosphorescence emission

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Science China Chemistry 2025年第01期 329-336页

作者： yuzhu Li yumeng Gao Feng Tian yu Wang yuan yao Shaoliang Lin Xiang Ma Binbin Xu Shanghai Key Laboratory of Advanced Polymeric Materials Key Laboratory for Ultrafine Materials of Ministry of Education School of Materials Science and Engineering East China University of Science and Technology Shanghai Synchrotron Radiation Facility Shanghai Advanced Research Institute Chinese Academy of Sciences Key Laboratory for Advance Materials and Feringa Noble Prize Scientist Joint Research Centre Frontiers Science for Materiobiology and Dynamic Chemistry School of Chemistry and Molecular Engineering East China University of Science & Technology

Developing organic room-temperature phosphorescence （RTP） materials with a wide range of tunable-emission is significant in expanding the applications of RTP ***,we rationally designed amphiphilic alternating copolymers poly(1,2-bis（4-alkoxyphenyl）ethane-1,2-dione-alt-（ethylene glycol）x)(P（Bz-alt-EGx）) that combined the advantage of alternating benzil and EGxskeleton,and tunable mainchain *** a mainchain conformation ordering assembly （COA） process,P（Bz-alt-EGx） self-assembled into well-defined platelets,and such assemblies emitted blue RTP at ca.425 nm due to the ordered folded-chain conformation and confined *** contrast,traditional self-assembly （TA） of P（Bz-alt-EGx） obtained less ordered aggregates,such as asymmetric worms,vesicles,and rod-like *** resultant less ordered aggregates exhibited yellow-green RTP at ca.550 *** wide-tuning RTP emission in solution （between blue and yellow-green,over125 nm） is realized using the P（Bz-alt-EGx） alternating copolymers under the treatment of different self-assembly *** study uncovers a new strategy to tailor the RTP emission through different self-assembly pathways and holds great promise for the fabrication of advanced optical materials.

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Drosophila models used to simulate human ATP1A1 gene mutations that cause Charcot-Marie-Tooth type 2 disease and refractory seizures

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Neural Regeneration Research 2025年第1期20卷 265-276页

作者： yao yuan Lingqi yu Xudong Zhuang Dongjing Wen Jin He Jingmei Hong Jiayu Xie Shengan Ling Xiaoyue Du Wenfeng Chen Xinrui Wang Institute of Life Sciences College of Biological Science and EngineeringFuzhou UniversityFuzhouFujian ProvinceChina NHC Key Laboratory of Technical Evaluation of Fertility Regulation for Non-human Primate(Fujian Maternity and Child Health Hospital) FuzhouFujian ProvinceChina Medical Research Center Fujian Maternity and Child Health HospitalCollege of Clinical Medicine for Obstetrics&Gynecology and PediatricsFujian Medical UniversityFuzhouFujian ProvinceChina Department of Neurology and Institute of Neurology of The First Affiliated Hospital Institute of Neuroscienceand Fujian Key Laboratory of Molecular NeurologyFujian Medical UniversityFuzhouFujian ProvinceChina

Certain amino acids changes in the human Na^(+)/K^(+)-ATPase pump,ATPase Na^(+)/K^(+)transporting subunit alpha 1(ATP1A1),cause Charcot-Marie-Tooth disease type 2(CMT2)disease and refractory *** develop in vivo models to study the role of Na^(+)/K^(+)-ATPase in these diseases,we modified the Drosophila gene homolog,Atpα,to mimic the human ATP1A1 gene mutations that cause *** located within the helical linker region of human ATP1A1(I592T,A597T,P600T,and D601F)were simultaneously introduced into endogenous Drosophila Atpαby CRISPR/Cas9-mediated genome editing,generating the Atpα^(TTTF)*** addition,the same strategy was used to generate the corresponding single point mutations in flies(Atpα^(I571T),Atpα^(A576T),Atpα^(P579T),and Atpα^(D580F)).Moreover,a deletion mutation(Atpα^(mut))that causes premature termination of translation was generated as a positive *** these alleles,we found two that could be maintained as homozygotes(Atpα^(I571T)and Atpα^(P579T)).Three alleles(Atpα^(A576T),Atpα^(P579)and Atpα^(D580F))can form heterozygotes with the Atpαmut *** found that the Atpαallele carrying these CMT2-associated mutations showed differential phenotypes in *** heterozygous for Atpα^(TTTF)mutations have motor performance defects,a reduced lifespan,seizures,and an abnormal neuronal *** Drosophila models will provide a new platform for studying the function and regulation of the sodium-potassium pump.

关键词： ATP1A1 Atpα bang-sensitive paralysis Charcot-Marie-Tooth disease type 2 CRISPR/Cas9 homology-directed repair Na^(+)/K^(+)-ATPase point mutation seizures sodium pump

不同频率电针通过调控GSK-3β蛋白及其磷酸化水平改善阿尔茨海默病大鼠突触可塑性损伤

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广州中医药大学学报 2017年第5期34卷 696-702页

作者：高珊孔立红余超超姚国晋武汉市第一医院针灸科湖北武汉430000 湖北中医药大学湖北武汉430000

【目的】研究不同频率电针治疗对阿尔茨海默病(AD)大鼠突触形态可塑性损伤的改善机制,为临床上应用电针治疗AD提供实验依据。【方法】将90只Wistar大鼠随机分为正常组,模型组,假手术组,2 Hz、30 Hz、50 Hz电针组,每组15只。Wistar大鼠... 详细信息

【目的】研究不同频率电针治疗对阿尔茨海默病(AD)大鼠突触形态可塑性损伤的改善机制,为临床上应用电针治疗AD提供实验依据。【方法】将90只Wistar大鼠随机分为正常组,模型组,假手术组,2 Hz、30 Hz、50 Hz电针组,每组15只。Wistar大鼠经筛选后通过侧脑室注射β淀粉样蛋白1-42(Aβ1-42)诱导构建AD大鼠模型;电针组采用不同频率(2、30、50 Hz)的电针针刺百会穴、肾俞穴进行治疗。采用Morris水迷宫实验检测各组大鼠的学习记忆能力和空间探索情况,采用透射电镜观察海马组织的突触超微结构,采用Golgi法进行神经纤维染色,采用Western blot法检测各组大鼠脑组织的糖原合酶激酶3β(GSK-3β)及其磷酸化表达水平。【结果】(1)与正常组比较,模型组大鼠的平均逃避潜伏期时间延长(P<0.05),跨越平台次数减少(P<0.05),提示动物造模成功;与模型组比较,各电针组大鼠的平均逃避潜伏期明显缩短,跨越平台次数增加(P<0.05)。(2)模型组海马区突触前膜、后膜和间隙界限不清晰,膜结构不完整,出现溶解现象,但电针组的突触结构均有所改善。(3)模型组脑组织可见明显神经纤维缠结,各电针组能够改善神经纤维缠结情况,神经纤维丝较清晰。(4)与正常组比较,模型组大鼠脑组织中GSK-3β总蛋白和Tyr216位点磷酸化水平升高(P<0.05),Ser9磷酸化水平下调(P<0.05)。随着电针频率的增加,GSK-3β和Tyr216磷酸化水平下调,Ser9磷酸化水平上升,与模型组比较,差异均有统计学意义(P<0.05)。(5)50 Hz电针组大鼠的跨越平台次数、平均逃避潜伏期和GSK-3β蛋白及其磷酸化水平与其他2个电针组比较,差异均有统计学意义(P<0.05)。50 Hz电针组的突触结构和神经纤维改善情况亦明显优于其他2个电针组。【结论】不同频率电针治疗能够改善AD大鼠的学习记忆能力,且50 Hz电针的治疗效果更好,其治疗效果可能是通过调控GSK-3β蛋白及其磷酸化水平从而改善AD大鼠突触可塑性损伤来实现的。

关键词：电针阿尔茨海默病/针刺疗法突触形态可塑性 GSK-3β 疾病模型,动物大鼠

A breakthrough of printable mesoscopic perovskite solar cells

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Science China Materials 2025年第1期 307-308页

作者： Zhiyi yao Zhijun Ning School of Physical Science and Technology Shanghai Tech University

High-performance solar cells based on low-cost wet coating methods are the much-anticipated technology for the next generation of photovoltaics. Perovskite solar cells (PSCs) provide a fascinating choice because their...

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Effects of ultrasonic-assisted extraction on bioactive compounds,volatile flavors and antioxidant activities of vine tea water extracts

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Traditional Medicine Research 2025年第1期10卷 73-81页

作者： Xiao-Long Zhou Wei-Jin Jiang Ji yu Mao-Jun yao yun-Tong Li Hunan Provincial Key Laboratory of Research Resource Mining and High-valued Utilization on Edible&Medicinal PlantCollege of Chemistry and Chemical EngineeringJishou UniversityJishou 416000China Hunan Gaoge Dairy Co. Ltd.Changsha 410000China

Background:Ampelopsis grossedentata,vine tea,which is the tea alternative beverages in *** vine tea processing,a large amount of broken tea is produced,which has low commercial ***:This study investigates the influence of different extraction methods(room temperature water extraction,boiling water extraction,ultrasonic-assisted room temperature water extraction,and ultrasonic-assisted boiling water extraction,referred to as room temperature water extraction(RE),boiling water extraction(BE),ultrasonic assistance at room temperature water extraction(URE),and ultrasonic assistance in boiling water extraction(UBE))on the yield,dihydromyricetin(DMY)content,free amino acid composition,volatile aroma components,and antioxidant properties of vine tea ***:A notable influence of extraction temperature on the yield of vine tea extracts(P<0.05),with BE yielding the highest at 43.13±0.26%,higher than that of RE(34.29±0.81%).Ultrasound-assisted extraction significantly increased the DMY content of the extracts(P<0.05),whereas DMY content in the RE extracts was 59.94±1.70%,that of URE reached 66.14±2.78%.Analysis revealed 17 amino acids,with L-serine and aspartic acid being the most abundant in the extracts,nevertheless ultrasound-assisted extraction reduced total free amino acid *** chromatography-mass spectrometry analysis demonstrated an increase in the diversity and quantity of compounds in the vine tea water extracts obtained through ultrasonic-assisted ***,69 and 68 volatile compounds were found in URE and UBE extracts,which were higher than the number found in RE and BE *** vitro,antioxidant activity assessments revealed varying antioxidant capacities among different extraction methods,with RE exhibiting the highest DPPH scavenging rate,URE leading in ABTS•+free radical scavenging,and BE demonstrating superior ferric ion reducing antioxidant ***:The findings suggest that extraction methods signi

关键词： vine tea dihydromyricetin ultrasonic-assisted extraction volatile aroma components