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Comparative proteomic analysis of plasma exosomes reveals the functional contribution of N-acetyl-alpha-glucosaminidase to Parkinson’s disease

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Neural Regeneration Research 2025年第10期20卷 2998-3012页

作者： Yuan Zhao Yidan zhang Xin Liu Jian zhang ya Gao Shuyue Li Cui Chang Xiang Liu Guofeng yang Department of Geriatrics Second Hospital of Hebei Medical UniversityShijiazhuangHebei ProvinceChina Department of Neurosurgery The Second Hospital of Hebei Medical UniversityShijiazhuangHebei ProvinceChina

Parkinson’s disease is the second most common progressive neurodegenerative disorder,and few reliable biomarkers are available to track disease *** proteins,DNA,mRNA,and lipids carried by exosomes reflect intracellular changes,and thus can serve as biomarkers for a variety of *** this study,we investigated alterations in the protein content of plasma exosomes derived from patients with Parkinson’s disease and the potential therapeutic roles of these proteins in Parkinson’s *** a tandem mass tag-based quantitative proteomics approach,we characterized the proteomes of plasma exosomes derived from individual patients,identified exosomal protein signatures specific to patients with Parkinson’s disease,and identified N-acetyl-alpha-glucosaminidase as a differentially expressed protein.N-acetyl-alpha-glucosaminidase expression levels in exosomes from the plasma of patients and healthy controls were validated by enzyme-linked immunosorbent assay and western *** results demonstrated that the exosomal N-acetyl-alpha-glucosaminidase concentration was not only lower in Parkinson’s disease,but also decreased with increasing Hoehn-yahr stage,suggesting that N-acetyl-alpha-glucosaminidase could be used to rapidly evaluate Parkinson’s disease ***,western blot and immunohistochemistry analysis showed that N-acetyl-alpha-glucosaminidase levels were markedly reduced both in cells treated with 1-methyl-4-phenylpyridinium and cells overexpressingα-synuclein compared with control ***,N-acetyl-alpha-glucosaminidase overexpression significantly increased cell viability and inhibitedα-synuclein expression in 1-methyl-4-phenylpyridinium-treated *** together,our findings demonstrate for the first time that exosomal N-acetyl-alpha-glucosaminidase may serve as a biomarker for Parkinson’s disease diagnosis,and that N-acetyl-alpha-glucosaminidase may reduceα-synuclein expression and 1-methyl-4-phenylpyridinium-induced n

关键词： biomarker diagnosis exosomes N-acetyl-alpha-glucosaminidase Parkinson’s disease proteomic α-synuclein

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去甲斑蝥素两种注射剂型小鼠急性毒性比较

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中西医结合学报 2007年第1期5卷 74-77页

作者：李柏朱立峰张亚妮顾伟第二军医大学长海医院中医科上海200433

目的:比较去甲斑蝥素普通剂型和缓释剂型对小鼠的急性毒性,证实缓释剂型的减毒作用。方法:选择药物缓释辅料泊洛沙姆407,将去甲斑蝥素制成注射用缓释剂型,分别观察普通剂型和缓释剂型两种不同剂型去甲斑蝥素小鼠尾静脉、腹腔、肝脏和肌... 详细信息

目的:比较去甲斑蝥素普通剂型和缓释剂型对小鼠的急性毒性,证实缓释剂型的减毒作用。方法:选择药物缓释辅料泊洛沙姆407,将去甲斑蝥素制成注射用缓释剂型,分别观察普通剂型和缓释剂型两种不同剂型去甲斑蝥素小鼠尾静脉、腹腔、肝脏和肌肉注射时的急性毒性反应,并计算半数致死量(medianlethaldose,LD50)。结果:两组小鼠毒性反应相似,但缓释制剂组反应出现时间滞后约4h;去甲斑蝥素普通制剂小鼠尾静脉注射LD50为12.6mg/kg;缓释制剂组腹腔、肝脏和肌肉注射时的LD50分别为19.9、19.1和20.9mg/kg,明显高于普通制剂组的13.0、13.1和15.1mg/kg。结论:去甲斑蝥素缓释剂型可能通过缓慢释放药物,降低峰值血药浓度,从而减轻毒性。

关键词：缓释制剂泊洛沙姆407 急性毒性实验

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康柏西普治疗PCV的效果及对患者血液流变学的影响

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国际眼科杂志 2020年第4期20卷 664-667页

作者：阿依努·努拉厚赵勇王雁张亚妮卜倩新疆医科大学附属中医医院眼科新疆乌鲁木齐830001

目的:讨论康柏西普治疗息肉样脉络膜视网膜病变(PCV)的效果及对患者血液流变学的影响。方法:选择2017-01/2018-04我院眼科收治PCV患者62例,按照治疗方式差异分成两组,每组31例;对照组采用雷珠单抗治疗,观察组接受康柏西普治疗;比较两组... 详细信息

目的:讨论康柏西普治疗息肉样脉络膜视网膜病变(PCV)的效果及对患者血液流变学的影响。方法:选择2017-01/2018-04我院眼科收治PCV患者62例,按照治疗方式差异分成两组,每组31例;对照组采用雷珠单抗治疗,观察组接受康柏西普治疗;比较两组眼压、BCVA、黄斑中心凹厚度(CMT)、黄斑中心凹下脉络膜厚度(SFCT)、血液流变学变化、并发症发生情况。结果:治疗前两组患者眼压、BCVA、CMT、SFCT均无差异(P>0.05);随着时间增加,两组患者BCVA升高,CMT、SFCT均降低(P0.05)。观察组全血高切黏度、全血低切黏度、血浆黏度、红细胞聚集指数均低于治疗前且低于对照组(P0.05)。结论:康柏西普应用于PCV可更提高患者视力,改善血液流变,减轻黄斑水肿等临床症状,且其安全性高,对眼压无影响。

关键词：康柏西普息肉样脉络膜视网膜病变疗效血液流变学黄斑中心凹厚度

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人肝癌BEL-7402/5-FU多药耐药细胞株的建立及其生物学特性观察

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中西医结合学报 2006年第3期4卷 265-270页

作者：顾伟张亚妮李柏韩洁程彬彬凌昌全第二军医大学长海医院中医科上海200433

目的:建立人肝癌BEL-7402/5-FU多药耐药细胞株。方法:采用体外低浓度梯度递增联合大剂量间断冲击的诱导方法建立5-FU获得性BEL-7402/5-FU多药耐药细胞株。MTT法检测耐药细胞株对多种化疗药物的交叉耐药性。观察其细胞形态学、生长曲线... 详细信息

目的:建立人肝癌BEL-7402/5-FU多药耐药细胞株。方法:采用体外低浓度梯度递增联合大剂量间断冲击的诱导方法建立5-FU获得性BEL-7402/5-FU多药耐药细胞株。MTT法检测耐药细胞株对多种化疗药物的交叉耐药性。观察其细胞形态学、生长曲线、倍增时间、平板克隆形成率、贴壁率、细胞周期分布、染色体核型以及裸鼠致瘤性。流式细胞术检测阿霉素在亲本及耐药细胞株内的积聚量。免疫细胞化学法检测胸苷酸合酶在耐药细胞内的表达。结果:成功建立人肝癌BEL-7402/5-FU多药耐药细胞株模型。该耐药细胞对阿霉素、长春新碱、奥沙利铂及甲氨蝶呤均有不同程度的交叉耐药性,但对羟基喜树碱仍较敏感。体外培养见细胞趋向群集性生长。耐药细胞株倍增时间较亲本细胞株长,克隆形成率则较亲本细胞株低,差异有统计学意义。耐药细胞贴壁率在23、h明显低于亲本细胞株,其G0/G1期细胞分布比率较低而S期比率明显增加。阿霉素在耐药细胞株内的积聚量低于亲本细胞株,耐药细胞株胸苷酸合酶的蛋白表达量较亲本细胞株明显增强。结论:人肝癌BEL-7402/5-FU多药耐药细胞株可以成为研究5-FU获得性耐药机制及开展多药耐药逆转剂筛选较好的体外模型。

关键词：肝细胞癌多药耐药 5-氟尿嘧啶细胞系

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Dynamic evolution of Co species and morphological reconstruction on Co-N-C during the nitrate reduction reaction in neutral solution

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Nano Research 2025年第1期18卷 164-172页

作者： Yuanlin Fu Xiaoting yang ya Yu Kang Zhou Xiaoyang Ye Aoxiang zhang Xiaojiao Hou Bingbing Chen Fuqiang Fan Yuhang Li Yu Fu Department of Chemistry College of SciencesNortheastern UniversityShenyang 110819China Department of Physical Education Shen Yang Institute of Science and TechnologyShenyang 110167China Sungrow Power Supply Co. Ltd.Hefei 230088China

The electrochemical nitrate reduction reaction(eNO_(3)^(-)RR)is considered an effective approach for converting nitrate-containing wastewater to *** adsorption and activation of NO_(3)^(-)is the critical step for many materials and the high energy barrier inhibits the continuation of the reduction *** Co nanoparticles encapsulated in the carbon layer we prepared spontaneously react with NO_(3)^(-)and the resulting Co^(2+)is then reduced by electroreduction to Co^(0),which circulates *** resulted in overcoming the energy input required for NO_(3)^(-)adsorption and conversion,thereby increasing the catalytic *** the same time,the morphology of the catalyst reconstructed from a dodecahedron to an interwoven nanosheet structure and the increased surface area also gives it better *** obtained Co(OH)_(2)@Co-N-C has an excellent eNO_(3)^(-)RR of 2774.7μg·h^(-1)·cm^(-2)with a Faraday efficiency of 81.4%in neutral *** the same time,the material-modified electrode can run stably for more than 100 *** work provides a new idea for the design of Co-based catalysts for eNO_(3)^(-)RR.

关键词： electrochemical nitrate reduction reaction Co-based catalyst dynamic evolution of Co species morphological reconstruction

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Preparation of silver nanoparticles through the reduction of straw-extracted lignin and its antibacterial hydrogel

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International Journal of Minerals,Metallurgy and Materials 2025年第2期32卷 504-514页

作者： Lou zhang Shuo Li Fu Tang Jingkai zhang Yuetong Kang Hean zhang Lidong Li State Key Laboratory for Advanced Metals and Materials School of Materials Science and EngineeringUniversity of Science and Technology BeijingBeijing 100083China

Silver nanoparticles(Ag NPs)have attracted attention in the field of biomaterials due to their excellent antibacterial ***,the reducing and stabilizing agents used for the chemical reduction of Ag NPs are usually toxic and may cause water *** this work,Ag NPs(31.2 nm in diameter)were prepared using the extract of straw,an agricultural waste,as the reducing and stabilizing *** analysis revealed that the straw extract contained lignin,the structure of which possesses phenolic hydroxyl and methoxy groups that facilitate the reduction of silver salts into Ag *** surfaces of Ag NPs were negatively charged due to the encapsulation of a thin layer of lignin molecules that prevented their *** the prepared Ag NPs were added to the precursor solution of acrylamide,free radical polymerization was triggered without the need for extra heating or light irradiation,resulting in the rapid formation of an Ag NP-polyacrylamide composite *** inhibition zone test proved that the composite hydrogel possessed excellent antibacterial ability due to the presence of Ag *** prepared hydrogel may have potential applications in the fabrication of biomedical materials,such as antibacterial dressings.

关键词： silver nanoparticles hydrogel straw extraction antibacterial

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Depression mechanism of sulfite ions on sphalerite and Pb^(2+)activated sphalerite in the flotation separation of galena from sphalerite

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International Journal of Minerals,Metallurgy and Materials 2025年第2期32卷 335-345页

作者： Feng zhang Chenyang zhang Linlin Wu Wei Sun Hongliang zhang Jianhua Chen Yong Pei Songjiang Li Engineering Research Center of Ministry of Education for Carbon Emission Reduction in Metal Resource Exploitation and Utilization Hunan International Joint Research Center for Efficient and Clean Utilization of Critical Metal Mineral ResourcesSchool of Minerals Processing and BioengineeringCentral South UniversityChangsha 410083China State Key Laboratory of Mineral Processing Beijing General Research Institute of Mining&MetallurgyBeijing 100160China Hunan Provincial Key Laboratory of Micro&Nano Materials Interfaces Science College of Chemistry and Chemical EngineeringCentral South UniversityChangsha 410083China School of Resources Environment and MaterialsGuangxi UniversityNanning 530004China Department of Chemistry Xiangtan UniversityXiangtan 411105China China Railway Resource Group Co.Ltd Beijing 102300China

The depression mechanism of sulfite ions on sphalerite and Pb^(2+)activated sphalerite in the flotation separation of galena from sphalerite still lacked in-depth ***,the depression mechanism of sulfite ions on sphalerite and Pb^(2+)activated sphalerite in the flotation separation of galena from sphalerite was further systematically investigated with experiments and density functional theory(DFT)*** X-ray photoelectric spectroscopy(XPS)results,DFT calculation results,and frontier molecular orbital analysis indicated that sulfite ions were difficult to be adsorbed on sphalerite surface,suggesting that sulfite ions achieved depression effects on sphalerite through other non-adsorption ***,the oxygen content in the surface of sphalerite treated with sulfite ions in creased,which enhanced the hydrophilicity of the sphalerite and further increased the difference in hydrophilicity between sphalerite and ***,sulfite ions were chelated with lead ions to form PbSO_(3)in *** hydrophilic PbSO_(3)was more easily adsorbed on sphalerite than *** interaction between sulfite ions and lead ions could effectively inhibit the activation of *** addition the UV spectrum showed that after adding sulfite ions,the peak of perxanthate in the sphalerite treated xanthate solution was significantly stronger than that in the galena with xanthate solution,indicating that xanthate interacted more readily with sulfite ions and oxygen mo lecules within the sphalerite system,leading to the formation of ***,sulfite ions hardly depressed the flotation of ga lena and could promote the flotation of galena to some *** study deepened the understanding of the depression mechanism o sulfite ions on sphalerite and Pb^(2+)activated sphalerite.

关键词： sphalerite galena sulfite ion density functional theory depression mechanism

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Based on non-targeted metabolomics for differential components screening of Rosae Chinensis Flos and Rosae Rugosae Flos and their quality evaluation

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Traditional Medicine Research 2025年第2期10卷 1-15页

作者： Xu Liang ni-Hui zhang Zhi-Lai Zhan Guang-Lu Chang yan Gao Xia Li Wen-Yuan Gao School of Pharmaceutical Science and Technology Faculty of MedicineTianjin UniversityTianjin 300193China State Key Laboratory for Quality Ensurance and Sustainable Use of Dao-di Herbs China Academy of Chinese Medical SciencesBeijing 100700China Key Laboratory of Modern Chinese Medicine Resources Research Enterprises Tianjin 300402China

Background:Rosa chinensis *** Rosa rugosa *** not only of ornamental value,but also edible flowers and the flower buds have been listed in the Chinese Pharmacopoeia as traditional *** two plants have some differences in efficacy,but the flower buds are easily confused for similar *** addition,large-scale cultivation of ornamental rose flowers may lead to a decrease in the effective components of medicinal ***,it is necessary to study the chemical composition and make quality evaluation of Rosae Chinensis Flos(Yueji)and Rosae Rugosae Flos(Meigui).Methods:In this study,40 batches of samples including Meigui and Yueji from different regions in China were collected to establish high-performance liquid chromatography ***,the fingerprints data was analyzed using principal component analysis,hierarchical cluster analysis,and partial least squares discriminant analysis analysis chemometrics to obtain information on intergroup differences,and non-targeted metabolomic techniques were applied to identify and compare chemical compositions of samples which were chosen from groups with large *** compounds were screened by orthogonal partial least-squares discriminant analysis and S-plot,and finally multi-component quantification was performed to comprehensively evaluate the quality of Yueji and ***:The similarity between the fingerprints of 40 batches roses and the reference print R was 0.73 to 0.93,indicating that there were similarities and differences between the *** principal component analysis and hierarchical cluster analysis of fingerprints data,the samples from different origins and varieties were intuitively divided into four *** least-squares discriminant analysis analysis showed that Meigui and Yueji cluster into two categories and the model was reliable.A total of 89 compounds were identified by high resolution mass spectrometry,mainly were flavonoids and flavon

关键词： Rosa chinensis Jacq. Rosa rugosa Thunb. metabolomics chemometrics multiple component quantification quality evaluation

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MBL抑制Jurkat细胞增殖和分泌IL-2

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现代免疫学 2010年第6期30卷 448-452页

作者：王明永张雅妮雷鸣张丽芸卢晓陈政良南方医科大学免疫学教研室广州510515

甘露聚糖结合凝集素（MBL）在天然免疫中起关键作用,但其对T淋巴细胞介导获得性免疫应答是否有影响尚不得而知。用非特异性刺激物PHA、PMA及ionomycin活化人T淋巴细胞株Jurkat细胞,ELISA和流式细胞术检测MBL与Jur-kat细胞的结合能力,WS... 详细信息

甘露聚糖结合凝集素（MBL）在天然免疫中起关键作用,但其对T淋巴细胞介导获得性免疫应答是否有影响尚不得而知。用非特异性刺激物PHA、PMA及ionomycin活化人T淋巴细胞株Jurkat细胞,ELISA和流式细胞术检测MBL与Jur-kat细胞的结合能力,WST-1和ELISA分析MBL对PHA、PMA及ionomycin活化Jurkat细胞的增殖及分泌细胞因子IL-2的影响。结果显示：MBL可结合PHA/PMA活化的Jurkat细胞,与未活化Jurkat细胞结合微弱;高浓度MBL（10~20mg/L）能以浓度依赖的方式抑制PHA/PMA活化的Jurkat细胞增殖,加入外源IL-2不能逆转这种作用;高浓度MBL（10~20 mg/L）能抑制PMA/ionomycin活化的Jurkat细胞分泌细胞因子IL-2,且呈剂量依赖关系。提示MBL可能在调节T细胞介导的获得性免疫应答中起一定作用。

关键词：甘露聚糖结合凝集素 Jurkat细胞 T淋巴细胞免疫调节

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Transjugular intrahepatic portosystemic shunt:A promising therapy for recompensation in cirrhotic patients

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World Journal of Gastroenterology 2024年第16期30卷 2285-2286页

作者： ya-ni Jin Wei zhang Department of Gastroenterology Nanjing Drum Tower HospitalAffiliated Hospital of Medical SchoolNanjing UniversityNanjing 210000Jiangsu ProvinceChina

This is a retrospective study focused on recompensation after transjugular intrahepatic portosystemic shunt(TIPS)*** authors confirmed TIPS could be a treatment for recompensation of patients with cirrhosis according to Baveno *** paper identified age and post-TIPS portal pressure gradient as independent predictors of recompensation in patients with decompensated cirrhosis after *** results need to be validated in a larger prospective cohort.

关键词： Cirrhosis recompensation Transjugular intrahepatic portosystemic shunt Portal pressure gradient Predictor factor Baveno VII

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