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邻苯二甲酸二异丁酯——新型的ANO2通道开放剂

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中国药理学通报 2024年第4期40卷 695-700页

作者：郑晓恬白立川王惠杰吴琼中国医科大学盛京医院辽宁沈阳110000 中国医科大学药学院辽宁沈阳110122 中国医科大学生命科学院辽宁沈阳110122

目的筛选ANO2的特异性配体药物,为医药行业开发靶向ANO2新药提供先导化合物的结构信息。方法构建ANO2过表达的HEK293细胞株,应用共聚焦显微镜-膜片钳全细胞记录模式技术筛选ANO2的特异性配体。结果在胞内外钳制电压100 mV及含1μmol·L^... 详细信息

目的筛选ANO2的特异性配体药物,为医药行业开发靶向ANO2新药提供先导化合物的结构信息。方法构建ANO2过表达的HEK293细胞株,应用共聚焦显微镜-膜片钳全细胞记录模式技术筛选ANO2的特异性配体。结果在胞内外钳制电压100 mV及含1μmol·L^(-1)钙离子电极内液的记录条件下,邻苯二甲酸二异丁酯(diisobutyl phthalate,DIBP)给药前ANO2介导的氯电流密度为(14.67±2.87)pA/pF,给药后ANO2介导的氯电流电导为(28.75±4.05)pA/pF,差异具有统计学意义(P<0.01);钙荧光成像实验结果表明DIBP无调节胞内游离钙信号的作用;在0μmol·L^(-1)钙离子条件下,DIBP对静息状态的ANO2通道不具有直接的激活作用。结论DIBP通过直接作用增强已活化ANO2通道的电导,其作为一种新型的促ANO2通道开放剂为开发靶向ANO2的药物提供结构信息,同时也为研究其他邻苯二甲酸酯类物质的毒理作用提供一定的理论基础。

关键词：邻苯二甲酸二异丁酯 ANO2 配体过表达先导化合物电流密度白介素-8

维普期刊数据库博看期刊

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芍药-甘草配伍的研究进展

中草药 2014年第10期45卷 1481-1485页

作者：郭珊珊王谦白立川郭政东中国医科大学附设卫生学校辽宁沈阳110001

配伍是中药复方用药的特色和优势,而药对则是最常见的配伍形式。芍药-甘草是来源于《伤寒论》的经典药对,研究显示芍药-甘草配伍具有抗炎、镇痛、解痉等药理作用,临床广泛应用于呼吸、消化、神经、肌肉、泌尿、内分泌等多系统疾病的治... 详细信息

配伍是中药复方用药的特色和优势,而药对则是最常见的配伍形式。芍药-甘草是来源于《伤寒论》的经典药对,研究显示芍药-甘草配伍具有抗炎、镇痛、解痉等药理作用,临床广泛应用于呼吸、消化、神经、肌肉、泌尿、内分泌等多系统疾病的治疗。综述芍药-甘草配伍后的药理作用、药效物质基础及其药动学研究进展,分析配伍后化学成分在机体内的变化规律,了解其体内的生物药剂学特征。

关键词：芍药甘草中药复方芍药苷甘草苷

Ultrasound features of congenital cytomegalovirus infection in the first trimester:A case report

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World Journal of Clinical Cases 2025年第5期13卷 30-35页

作者： Xiao-li Chen li-Qiang Zhang li-li bai Department of Ultrasound Wenzhou Central HospitalWenzhou 325000Zhejiang ProvinceChina

BACKGROUND Congenital cytomegalovirus(CMV)infection represents a significant public health concern as the most prevalent viral infection in newborns,potentially leading to severe neurological and developmental *** majority of cases are asymptomatic and remain undetected during pregnancy due to the absence of effective screening *** SUMMARY A 27-year-old primigravida presented for early pregnancy ultrasound,which revealed an atypical finding:A normal anechoic thalamus appearing hyperechoic on the mid-sagittal view of the fetal *** ultrasound examinations during mid and late gestation demonstrated classic intracranial features sug-gestive of congenital CMV *** karyotyping and microarray analysis of the fetus yielded no significant *** compre-hensive prenatal counseling regarding potential adverse fetal outcomes,the patient elected to continue her *** ultimately underwent cesarean delivery at 42 weeks gestation at another facility,resulting in the birth of a female *** five months of age,the infant presented with epilepsy and significant growth and developmental *** Congenital CMV infection occurs during the first trimester may manifest as hyperechoic thalamus which can be revealed by ultrasound in the mid-saggital view of the fetal *** research should investigate the correlation between echogenic thalamus and developmental outcomes,as well as explore early sc-reening techniques for suspected congenital CMV infection cases.

关键词： Prenatal diagnosis Congenital infection Cytomegalovirus Fetal ultrasound Case report

Hypidone hydrochloride(YL-0919)ameliorates functional deficits after traumatic brain injury in mice by activating the sigma-1 receptor for antioxidation

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Neural Regeneration Research 2025年第8期20卷 2325-2336页

作者： Yafan bai Hui Ma Yue Zhang Jinfeng li Xiaojuan Hou Yixin Yang Guyan Wang Yunfeng li Department of Anesthesiology Beijing Tongren HospitalCapital Medical UniversityBeijingChina Beijing Institute of Basic Medical Sciences BeijingChina Hebei North University ZhangjiakouHebei ProvinceChina Beijing Institute of Pharmacology and Toxicology State Key Laboratory of Toxicology and Medical CountermeasuresBeijing Key Laboratory of NeuropsychopharmacologyBeijingChina

Traumatic brain injury involves complex pathophysiological mechanisms,among which oxidative stress significantly contributes to the occurrence of secondary *** this study,we evaluated hypidone hydrochloride(YL-0919),a self-developed antidepressant with selective sigma-1 receptor agonist properties,and its associated mechanisms and targets in traumatic brain *** experiments to assess functional deficits were followed by assessment of neuronal damage through histological analyses and examination of blood-brain barrier permeability and brain ***,we investigated the antioxidative effects of YL-0919 by assessing the levels of traditional markers of oxidative stress in vivo in mice and in vitro in HT22 ***,the targeted action of YL-0919 was verified by employing a sigma-1 receptor antagonist(BD-1047).Our findings demonstrated that YL-0919 markedly improved deficits in motor function and spatial cognition on day 3 post traumatic brain injury,while also decreasing neuronal mortality and reversing blood-brain barrier disruption and brain ***,YL-0919 effectively combated oxidative stress both in vivo and in *** protective effects of YL-0919 were partially inhibited by *** results indicated that YL-0919 relieved impairments in motor and spatial cognition by restraining oxidative stress,a neuroprotective effect that was partially reversed by the sigma-1 receptor antagonist ***-0919 may have potential as a new treatment for traumatic brain injury.

关键词： antidepressant drug blood-brain barrier cognitive function hypidone hydrochloride(YL-0919) neurological function nuclear factor-erythroid 2 related factor 2 oxidative stress sigma-1 receptor superoxide dismutase traumatic brain injury

Perilipin-2 mediates ferroptosis in oligodendrocyte progenitor cells and myelin injury after ischemic stroke

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Neural Regeneration Research 2025年第7期20卷 2015-2028页

作者： Jian Yang Jiang Wu Xueshun Xie Pengfei Xia Jinxin Lu Jiale liu Lei bai Xiang li Zhengquan Yu Haiying li Department of Neurosurgery&Brain and Nerve Research Laboratory The First Affiliated Hospital of Soochow UniversitySuzhouJiangsu ProvinceChina Institute of Stroke Research Soochow UniversitySuzhouJiangsu ProvinceChina

Differentiation of oligodendrocyte progenitor cells into mature myelin-forming oligodendrocytes contributes to *** of remyelination due to oligodendrocyte progenitor cell death can result in severe nerve *** is an iron-dependent form of regulated cell death caused by membrane rupture induced by lipid peroxidation,and plays an important role in the pathological process of ischemic ***,there are few studies on oligodendrocyte progenitor cell *** analyzed transcriptome sequencing data from GEO databases and identified a role of ferroptosis in oligodendrocyte progenitor cell death and myelin injury after cerebral *** analysis suggested that perilipin-2(PliN2)was involved in oligodendrocyte progenitor cell ***2 is a lipid storage protein and a marker of hypoxia-sensitive lipid droplet *** further investigation,we established a mouse model of cerebral ischemia/*** found significant myelin damage after cerebral ischemia,as well as oligodendrocyte progenitor cell death and increased lipid peroxidation levels around the infarct *** ferroptosis inhibitor,ferrostatin-1,rescued oligodendrocyte progenitor cell death and subsequent myelin *** also found increased PliN2 levels in the peri-infarct area that co-localized with oligodendrocyte progenitor ***2 knockdown rescued demyelination and improved neurological *** findings suggest that targeting PliN2 to regulate oligodendrocyte progenitor cell ferroptosis may be a potential therapeutic strategy for rescuing myelin damage after cerebral ischemia.

关键词： bioinformatics bulk RNA sequencing ferroptosis ischemic stroke myelin injury oligodendrocyte progenitor cell perilipin-2 single-cell RNA sequencing

m_3AChR-G_(11α)融合蛋白表达及功能检测

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中国药理学通报 2010年第8期26卷 1017-1020页

作者：白立川郭政东张雪薇孙科姜爱民中国医科大学药物毒理学教研室辽宁沈阳110001

目的制备m3AChR-G11α融合蛋白,探索m3AChR与G11间的偶联功能、相互作用及其影响因素。方法通过应用两步PCR方法构建m3AChR-G11α融重组的cDNAs,并在Baculovirus-infected Insect cells(Sf9)细胞内表达m3AChR-G11α融合蛋白。BCA法测定Sf9细胞表达的膜蛋白总含量,[3H]QNB和[35S]GTPγS放射性配体结合实验检测融合蛋白的偶联功能。结果 BCA法测定Sf9细胞膜蛋白的总浓度为2.86g·L-1,M3-G11α融合蛋白的表达水平为7.76×10-9mol·g-1protein。不同配体存在时使融合蛋白中的G11α与GDP的亲和力发生变化。ACh,Pilo,CCh,MCN-A-343,Atro,4-Damp,Dafi及无配体存在时,GDP的IC50值分别为:82.21,93.70,12.10,14.30,1.93,1.37,0.72和1.99×10-6mol·L-1。结论 Sf9细胞表达的m3AChR-G11α融合蛋白具有m受体配体结合的特性及两组分间偶联的功能,m3AChR-G11α融合蛋白中的G11亚基对GDP的亲和性取决于m受体配体的性质,分析GDP的亲和性变化有利于筛选和鉴别m3受体亚型特异性配体。

关键词： m受体 G蛋白融合蛋白激动剂拮抗剂放射性配体

Reorganizing electronic structure of li3V2(PO4)3 using polyanion(BO3)^3-:towards better electrochemical performances

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Rare Metals 2017年第5期36卷 397-402页

作者： Yu li Ying bai Zhi Yang Zhao-Hua Wang Shi Chen Feng Wu chuan Wu School of Materials Science and Engineering Beijing Institute of TechnologyBeijing 100081China Collaborative Innovation Center of Electric Vehicles in Beijing Beijing 100081China

Doping modification of electrode materials is a sought-after strategy to improve their electrochemical performance in the secondary batteries field. Herein,polyanion（BO3）^3-doped li3V2（PO4）3 cathode materials were successfully synthesized via a wet coordination method. The effects of（BO3）^3- doping content on crystal structure, morphology and electrochemical performance were explored by X-ray diffraction（XRD）, scanning electron microscopy（SEM）, cyclic voltammetry（CV） and electrochemical impedance spectroscopy（EIS）. All the asprepared samples have the same monoclinic structure;among them, li3V2（PO4）（2.75）（BO3）（0.15） sample has relatively uniform and optimized particle size. In addition, this sample has the highest discharge capacity and the best cycling stability, with an initial discharge capacity of 120.4mAh·g^-1, and after 30 cycles at a rate of 0.1C, the discharge capacity still remains 119.3 mAh·g^-1. It is confirmed that moderate polyanion（BO3）^3- doping can rearrange the electronic structure of the bulk li3V2（PO4）3,lower the charge transfer resistance and further improve the electrochemical behaviors.

关键词： lithium-ion batteries Cathode materials li3V2(PO4)3 Polyanion doping (BO3)^3-

Passive activity enhances residual control ability in patients with complete spinal cord injury

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Neural Regeneration Research 2025年第8期20卷 2337-2347页

作者： Yanqing Xiao Mingming Gao Zejia He Jia Zheng Hongming bai Jia-Sheng Rao Guiyun Song Wei Song Xiaoguang li Beijing Key Laboratory for Biomaterials and Neural Regeneration Beijing Advanced Innovation Center for Biomedical EngineeringSchool of Biological Science and Medical EngineeringBeihang UniversityBeijingChina Department of Rehabilitation Evaluation China Rehabilitation Research CenterBeijingChina Cardiac Center Beijing Children’s HospitalCapital Medical UniversityBeijingChina The State Key Laboratory of Virtual Reality Technology and Systems Beihang UniversityBeijingChina Department of Rehabilitation Engineering China Rehabilitation Science InstituteBeijingChina

Patients with complete spinal cord injury retain the potential for volitional muscle activity in muscles located below the spinal injury ***,because of prolonged inactivity,initial attempts to activate these muscles may not effectively engage any of the remaining neurons in the descending pathway.A previous study unexpectedly found that a brief clinical round of passive activity significantly increased volitional muscle activation,as measured by surface *** this study,we further explored the effect of passive activity on surface electromyographic signals during volitional control tasks among individuals with complete spinal cord *** patients with chronic complete thoracic spinal cord injury were *** electromyography data from eight major leg muscles were acquired and compared before and after the passive activity *** results indicated that the passive activity led to an increased number of activated volitional muscles and an increased frequency of *** the cumulative root mean square of surface electromyography amplitude for volitional control of movement showed a slight increase after passive activity,the difference was not statistically *** findings suggest that brief passive activity may enhance the ability to initiate volitional muscle activity during surface electromyography tasks and underscore the potential of passive activity for improving residual motor control among patients with motor complete spinal cord injury.

关键词： complete spinal cord injury cycle training epidural electrical stimulation motor training passive activity physiological state spinal cord circuit surface electromyography volitional control task

Facile synthesis of li3V2（PO4）3/C cathode material for lithium-ion battery via freeze-drying

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Journal of Energy Chemistry 2019年第5期28卷 159-165页

作者： Shuainan Guo Ying bai Zhenfeng Geng Feng Wu chuan Wu Beijing Key Laboratory of Environmental Science and Engineering School of Materials Science & EngineeringBeijing Institute of TechnologyBeijing 100081China Collaborative Innovation Center of Electric Vehicles in Beijing Beijing 100081China

In this work, we report a facile route for the synthesis of li3V2(PO4)3/C cathode material via freezedrying and then calcination. The effect of calcination temperature on the electrochemical properties of the li3V2(PO4)3/C is also investigated. When used as a lithium-ion battery cathode, the optimized li3V2(PO4)3/C (LVP-800) through calcination at 800 ℃ exhibits a high initial charge and discharge capacity. The excellent electrochemical performance of LVP-800 is attributed to the good crystallinity and uniform morphology of the electrode material. In addition, the residual carbon can also improve the conductivity and buffer the volume expansion during the li-ion extraction/reinsertion. Meanwhile, charge compensation also plays an important role in excellent electrochemical performance.

关键词： li3V2(PO4)3/C Freeze-drying Charge compensation lithium-ion battery