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Effects of aqueous extracts of Aconitum carmichaeli,Rhizoma bolbostemmatis,Phytolacca acinosa,Panax notoginseng and Gekko swinhonis Gūenther on Bel-7402 cells

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World Journal of Gastroenterology 2007年第19期13卷 2743-2746页

作者： zhu-chen yan Dan chen Xiong-Zhi Wu Guang-Ru Xie Yi Ba Zhao yan Tianjin Medical University Cancer Institute and Hospital Tianjin 300060 China Tianijn Infectious Diseases Hospital Tianjin 300192China

AIM： To investigate the anticancer activity of a chinese medical mixture, WRCP （warming and relieving Cold Phlegm）, on hepatocarcinoma Bel-7402 cells. METHODS： Fingerprints of WRCP, which were composed of aqueous extracts of Aconitum carmichae/i, Rhizoma bolbostemmatis, Phytolacca acinosa, Panax notoginseng and Gekko swinhonis Gdenther, and aconitine, which could be isolated from Aconitum carmichaeli and have the potential toxicity, were identified by high pressure liquid chromatography. Bel-7402 cells were grown in the presence of WRCP, As203 or all-trans-retinoic acid （ATRA）. Cell proliferation and viability were determined by trypan blue stain. Apoptosis and cell cycle of Bel-7402 cells were detected by flow cytometry. Morphologic and ultrastructural variations were determined under optic and electronic microscopy. The secretion of alpha-fetoprotein and albumin was detected by radioimmunoassay. RESULTS： The average quality of aconitine is 1.15：1： 0.10 μg per 7.5 g extracts. WRCP could suppress the proliferation and viability of Bel-7402 cells. The percentage of apoptosis cells and S phase cells increased on WRCP-treated cells. Treated with WRCP, Bel-7402 cells showed ultrastructural features of differentiation. The alpha-fetoprotein secretion decreased while the albumin secretion increased （P 〈 0.001, P 〈 0.001, respectively） markedly in WRCP-treated cells. CONCLUSION： WRCP can affect the proliferation, differentiation and apoptosis of Bel-7402 cells. It can arrest cells in S phase and has strong cytotoxicity to Bel-7402 cells.

关键词： Hepatocarcinoma Chinese herb Proliferation Differentiation Apoptosis L--~totoxicity

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The environmental signal of an early Holocene pollen record from the Shiyang River basin lake sediments, NW China

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Chinese Science Bulletin 2002年第4期47卷 267-273页

作者： zhu yan, chen Fahu & Madsen DavidCollege of geography and Environment, Northwest Normal University, Lanzhou 730070, China National Key Laboratory of West Environmental System, Lanzhou University, Lanzhou 730000, China Utah Geological Surv College of geography and Environment Northwest Normal University Lanzhou China National Key Laboratory of West Environmental System Lanzhou University Lanzhou China Utah Geological Survey Utah USA

Pollen analyses of 85 samples from the San-jiaocheng section well along the margin of a palaeolake at the end of the Shiyang River, NW China, show that Picea and Sabina dominate the pollen assemblage. Together they reach as high as 40%-60%, with the percentage of Picea varying inversely with that of Sabina. Similar results were obtained from another section in the Shiyang River drainage. Using modern ecological habitat relationship analogues, pol-len transport characteristics, and the overall pollen assem-blage, we propose that both Picea and Sabina pollen were transported by the river from the mountains at the upper reaches of the Shiyang River, and that the assemblage is more indicative of changes in upland vegetation than of local conditions near the section. This interpretation is supported by pollen data derived from surface samples, water samples, and riverbed samples. Using a moisture indicator (the Picea to Sabina ratio) and calculated pollen concentrations, we identify a series of

关键词： NW China The environmental signal of an early Holocene pollen record from the Shiyang River basin lake sediments

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ICP-OES测定水中锰的结果不确定度评定

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中国给水排水 2008年第4期24卷 86-88页

作者：朱晨燕上海浦东威立雅自来水有限公司上海201206

介绍了采用电感耦合等离子体发射光谱仪(ICP-OES)测定水中锰的结果不确定度的评定方法,为建立有效的质量控制方法提供了科学依据。对于不确定的计算不能笼统地以一个固定数值或比值来表达,它应该是与具体的浓度相关联的数据。由于ICP-OE... 详细信息

介绍了采用电感耦合等离子体发射光谱仪(ICP-OES)测定水中锰的结果不确定度的评定方法,为建立有效的质量控制方法提供了科学依据。对于不确定的计算不能笼统地以一个固定数值或比值来表达,它应该是与具体的浓度相关联的数据。由于ICP-OES全谱直读式发射光谱仪可以同时测定水中10多种元素,因此该方法也可以用于其他元素测定结果的评定。

关键词： ICP—OES 锰不确定度

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苯甲醛绿色生产新工艺

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高校化学工程学报 2000年第5期14卷 448-452页

作者：朱晨燕朱宪上海大学化工系上海201800

利用二氧化锰650度下灼烧得到三氧化二锰；使用该原料与中等浓度的硫酸和甲苯在反应器内进行固、油、水三相反应，反应结束后甲苯氧化成为产品苯甲醛。油相蒸馏回收，分离出苯甲醛成品和没有反应的甲苯，甲苯用于循环使用；水相经活性... 详细信息

利用二氧化锰650度下灼烧得到三氧化二锰；使用该原料与中等浓度的硫酸和甲苯在反应器内进行固、油、水三相反应，反应结束后甲苯氧化成为产品苯甲醛。油相蒸馏回收，分离出苯甲醛成品和没有反应的甲苯，甲苯用于循环使用；水相经活性碳吸咐处理循环使用；固相副产物（主要是硫酸锰）可作为成品出售。整个循环过程构成闭合的绿色化工生产工艺。同时在对反应的研究中发现三相氧化反应是复杂的连串反应，稳定期活化能为79kJ·mol-1。

关键词：苯甲醛三氧化二锰非均相反应动力学

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Morphology engineering of ZnO micro/nanostructures under mild conditions for optoelectronic application

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International Journal of Minerals,Metallurgy and Materials 2025年第2期32卷 498-503页

作者： Liang Chu Haoyu Shen Hudie Wei Hongyu chen Guoqiang Ma Wensheng yan Institute of Carbon Neutrality and New Energy&School of Electronics and Information Hangzhou Dianzi UniversityHangzhou 310018China School of Applied Physics and Materials Wuyi UniversityJiangmen 529020China

Zinc oxide(ZnO)serves as a crucial functional semiconductor with a wide direct bandgap of approximately 3.37 *** reaction is commonly used in the synthesis of ZnO micro/nanostructures,given its low cost,simplicity,and easy ***,ZnO morphology engineering has become desirable through the alteration of minor conditions in the reaction process,particularly at room *** this work,ZnO micro/nanostructures were synthesized in a solution by varying the amounts of the ammonia added at low temperatures(including room temperature).The formation of Zn^(2+)complexes by ammonia in the precursor regulated the reaction rate of the morphology engineering of ZnO,which resulted in various structures,such as nanoparticles,nanosheets,microflowers,and single ***,the obtained ZnO was used in the optoelectronic application of ultraviolet detectors.

关键词： morphology engineering low temperature ZnO nanosheets microflowers ultraviolet detector

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Autophagy-targeting modulation to promote peripheral nerve regeneration

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Neural Regeneration Research 2025年第7期20卷 1864-1882页

作者： yan chen Hongxia Deng Nannan Zhang Department of Obstetrics and Gynecology West China Second HospitalSichuan UniversityChengduSichuan ProvinceChina Key Laboratory of Birth Defects and Women and Children’s Diseases Ministry of EducationSichuan UniversityChengduSichuan ProvinceChina Laboratory of Reproductive Endocrinology and Reproductive Regulation Sichuan UniversityChengduSichuan ProvinceChina National Center for Birth Defect Monitoring West China Second University HospitalSichuan UniversityChengduSichuan ProvinceChina

Nerve regeneration following traumatic peripheral nerve injuries and neuropathies is a complex process modulated by diverse factors and intricate molecular *** studies have focused on factors that stimulate axonal outgrowth and myelin ***,recent studies have highlighted the pivotal role of autophagy in peripheral nerve regeneration,particularly in the context of traumatic ***,autophagy-targeting modulation has emerged as a promising therapeutic approach to enhancing peripheral nerve *** current understanding suggests that activating autophagy facilitates the rapid clearance of damaged axons and myelin sheaths,thereby enhancing neuronal survival and mitigating injury-induced oxidative stress and *** actions collectively contribute to creating a favorable microenvironment for structural and functional nerve regeneration.A range of autophagyinducing drugs and interventions have demonstrated beneficial effects in alleviating peripheral neuropathy and promoting nerve regeneration in preclinical models of traumatic peripheral nerve *** review delves into the regulation of autophagy in cell types involved in peripheral nerve regeneration,summarizing the potential drugs and interventions that can be harnessed to promote this *** hope that our review will offer novel insights and perspectives on the exploitation of autophagy pathways in the treatment of peripheral nerve injuries and neuropathies.

关键词： autophagy autophagy related genes Charcot–Marie–Tooth diseases diabetic peripheral neuropathy metformin myelination peripheral nerve injury Schwann cells sciatic nerve Wallerian degeneration

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Glucocorticoid receptor signaling in the brain and its involvement in cognitive function

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Neural Regeneration Research 2025年第9期20卷 2520-2537页

作者： Chonglin Su Taiqi Huang Meiyu Zhang yanyu Zhang yan Zeng Xingxing chen Brain Science and Advanced Technology Institute Hubei Province Key Laboratory of Occupational Hazard Identification and ControlSchool of MedicineWuhan University of Science and TechnologyWuhanHubei ProvinceChina

The hypothalamic-pituitary-adrenal axis regulates the secretion of glucoco rticoids in response to environmental *** the brain,a nuclear receptor transcription fa ctor,the glucocorticoid recepto r,is an important component of the hypothalamicpituitary-a d renal axis's negative feedback loop and plays a key role in regulating cognitive equilibrium and *** glucoco rticoid receptor influences cognitive processes,including glutamate neurotransmission,calcium signaling,and the activation of brain-derived neurotrophic factor-mediated pathways,through a combination of genomic and non-genomic *** interactions within the central nervous system can alter the expression and activity of the glucocorticoid receptor,there by affecting the hypothalamic-pituitary-a d renal axis and stress-related cognitive *** appropriate level of glucocorticoid receptor expression can improve cognitive function,while excessive glucocorticoid receptors or long-term exposure to glucoco rticoids may lead to cognitive *** with cognitive impairment-associated diseases,such as Alzheimer's disease,aging,depression,Parkinson's disease,Huntington's disease,stroke,and addiction,often present with dysregulation of the hypothalamic-pituitary-adrenal axis and glucocorticoid receptor *** review provides a comprehensive overview of the functions of the glucoco rticoid receptor in the hypothalamic-pituitary-a d renal axis and cognitive *** emphasizes that appropriate glucocorticoid receptor signaling fa cilitates learning and memory,while its dysregulation can lead to cognitive *** provides clues about how glucocorticoid receptor signaling can be targeted to ove rcome cognitive disability-related disorders.

关键词： brain-derived neurotrophic factor calcium signaling glucocorticoid receptor glucocorticoid glutamate transmission hypothalamic-pituitary-adrenal axis long-term potentiation neurocognitive disorders neuroplasticity stress

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超声波辅助提取葛根中总黄酮及其体外抗氧化性的研究

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食品研究与开发 2017年第2期38卷 62-65页

作者：朱德艳陈晗荆楚理工学院生物工程学院湖北荆门448000

利用超声波辅助乙醇浸提法探索提取葛根中总黄酮的最佳条件,并进一步考察葛根总黄酮提取物的体外抗氧化性。结果表明,葛根中总黄酮最佳提取工艺为:温度60℃,提取固液比为1∶15(g/m L),70%体积分数的乙醇溶液,提取25 min。在此条件下,葛... 详细信息

利用超声波辅助乙醇浸提法探索提取葛根中总黄酮的最佳条件,并进一步考察葛根总黄酮提取物的体外抗氧化性。结果表明,葛根中总黄酮最佳提取工艺为:温度60℃,提取固液比为1∶15(g/m L),70%体积分数的乙醇溶液,提取25 min。在此条件下,葛根中总黄酮的提取率可达2.91 mg/g。葛根黄酮提取物对DPPH·、羟基自由基有明显的清除作用。

关键词：葛根总黄酮超声波辅助提取抗氧化性

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THAP蛋白家族研究进展

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军事医学科学院院刊 2006年第6期30卷 569-572页

作者：朱晨雁杨晓明军事医学科学院放射与辐射医学研究所北京100850

THAP蛋白是新发现的细胞因子家族,其显著特征是蛋白质的N端有进化上保守的THAP结构域,其内部含新型锌指模序,与果蝇P元件转座酶DNA结合结构域高度同源。人的THAP家族有12个成员,来自于人和模式生物中THAP家族成员的功能研究表明,该家族... 详细信息

THAP蛋白是新发现的细胞因子家族,其显著特征是蛋白质的N端有进化上保守的THAP结构域,其内部含新型锌指模序,与果蝇P元件转座酶DNA结合结构域高度同源。人的THAP家族有12个成员,来自于人和模式生物中THAP家族成员的功能研究表明,该家族蛋白具有DNA结合活性,很可能广泛参与了细胞增殖、周期、凋亡、转录的调控,以及染色体修饰和重构。其中,不同THAP家族成员的THAP结构域发挥不同的作用。

关键词： THAP蛋白 DNA结合蛋白质类增殖细胞凋亡

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机械球磨制备Fe0/ZSM-5复合材料及其对Pb2+的去除研究

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高校化学工程学报 2017年第2期31卷 478-484页

作者：王春峰朱艳臣陈冠飞姚丹皇晓晨王连军河南师范大学环境学院黄淮水环境与污染防治教育部重点实验室河南省环境污染控制重点实验室河南新乡453007 南京理工大学环境与生物工程学院江苏省化工污染控制与资源化重点实验室江苏南京210094

利用机械球磨法将零价铁(Fe^0)颗粒负载到疏水性、高硅比的ZSM-5分子筛上,成功制备出Fe^0/ZSM-5复合材料,研究了此复合材料对水溶液中Pb^(2+)的去除性能。XRD结果表明,Fe^0/ZSM-5复合材料保持了ZSM-5分子筛的晶体结构,元素点映射表明零... 详细信息

利用机械球磨法将零价铁(Fe^0)颗粒负载到疏水性、高硅比的ZSM-5分子筛上,成功制备出Fe^0/ZSM-5复合材料,研究了此复合材料对水溶液中Pb^(2+)的去除性能。XRD结果表明,Fe^0/ZSM-5复合材料保持了ZSM-5分子筛的晶体结构,元素点映射表明零价铁颗粒均匀地负载在ZSM-5分子筛上。实验结果表明,在30℃,初始Pb^(2+)浓度为1~100mg·L^(-1),pH值为3.0,Fe^0/ZSM-5复合材料投加量为0.2 g·L^(-1),反应时间为60 min条件下,Pb^(2+)的最大去除率和最高吸附量分别为78.05%和102 mg·g^(-1)。研究发现在去除Pb^(2+)的过程中伴随着Fe^(2+)的释放以及pH值的升高,且反应过程中释放出Fe^(2+)会加速Fe^0表面的给电子过程,增加其表面活性位点,进而进一步提升对Pb^(2+)的还原去除。研究表明,反应过程符合一级反应动力学。

关键词：机械球磨零价铁 ZSM-5分子筛 Pb2+

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