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Decreased levels of phosphorylated synuclein in plasma are correlated with poststroke cognitive impairment

Neural Regeneration Research 2025年第9期20卷 2598-2610页

作者： Yi Wang Yuning Li Yakun Gu wei Ma Yuying Guan Mengyuan Guo Qianqian Shao Xunming Ji Jia liu Department of Clinical Laboratory Beijing Bo’ai HospitalChina Rehabilitation Research CenterCapital Medical UniversityBeijingChina Beijing Institute of Brain Disorders Laboratory of Brain DisordersMinistry of Science and TechnologyCollaborative Innovation Center for Brain DisordersBeijing Advanced Innovation Center for Big Data-based Precision MedicineCapital Medical UniversityBeijingChina Department of Neurosurgery Xuanwu HospitalCapital Medical UniversityBeijingChina

Poststro ke cognitive impairment is a major secondary effect of ischemic stroke in many patients;however,few options are available for the early diagnosis and treatment of this *** aims of this study were to(1)determine the specific relationship between hypoxic andα-synuclein during the occur of poststroke cognitive impairment and(2)assess whether the serum phosphorylatedα-synuclein level can be used as a biomarker for poststro ke cognitive *** found that the phosphorylatedα-synuclein level was significantly increased and showed pathological aggregation around the cerebral infa rct area in a mouse model of ischemic *** addition,neuronalα-synuclein phosphorylation and aggregation were observed in the brain tissue of mice subjected to chronic hypoxia,suggesting that hypoxia is the underlying cause ofα-synuclein-mediated pathology in the brains of mice with ischemic *** phosphorylatedα-synuclein levels in patients with ischemic stroke were significantly lower than those in healt hy subjects,and were positively correlated with cognition levels in patients with ischemic ***,a decrease in serum high-density lipoprotein levels in stroke patie nts was significantly correlated with a decrease in phosphorylatedα-synuclein *** ischemic stroke mice did not show significant cognitive impairment or disrupted lipid metabolism 14 days after injury,some of them exhibited decreased cognitive function and reduced phosphorylatedα-synuclein *** together,our results suggest that serum phosphorylatedα-synuclein is a potential biomarker for poststroke cognitive impairment.

关键词： biomarker high-density lipoprotein ischemic stroke phosphorylatedα-synuclein poststroke cognitive impairment

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二氧化碳汽—液界面特性的分子动力学模拟

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河南化工 2013年第19期30卷 27-32页

作者：杨刘玮王宝和大连理工大学化工学院

采用EPM2二氧化碳分子势能模型,以二氧化碳分子内各原予作为统计对象进行统计计算,探讨温度、薄层切片数及截断半径对其汽—液界面特性参数的影响规律.结果表明,随着截断半径的增大,液相主体密度逐渐增大,汽相主体密度逐渐减小,界面层... 详细信息

采用EPM2二氧化碳分子势能模型,以二氧化碳分子内各原予作为统计对象进行统计计算,探讨温度、薄层切片数及截断半径对其汽—液界面特性参数的影响规律.结果表明,随着截断半径的增大,液相主体密度逐渐增大,汽相主体密度逐渐减小,界面层厚度有所减小;薄层切片数对界面层厚度、液相主体和汽相主体的密度影响不大;随着温度的升高,汽相主体密度增加,液相主体密度降低,汽—液界面厚度增大,界面张力逐渐减小.

关键词：分子动力学模拟汽—液界面二氧化碳

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Rational modulation of fluorophosphate cathode by anionic groups to reduce the polarization behavior for fast-charging sodium-ion batteries

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Journal of Energy Chemistry 2025年第1期100卷 509-521页

作者： Xinyuan Wang Fan Zhang Xingyu Zhou Qian Wang Changyu liu yangyang liu Hui Wang Xiaojie liu Key Laboratory of Synthetic and Natural Functional Molecule of the Ministry of Education College of Chemistry & Materials Science Northwest University

Na3V2（PO4）2O2F （VP） is recognized as a promising cathode material for sodium-ion batteries due to its stable structural framework and high specific *** functional theory （DFT） and finite element simulations show that incorporating SO42-into VP decreases its band gap,lowers the migration energy barrier,and ensures a uniform Na+concentration gradient and stress distribution during charge and discharge ***,the average Na+diffusion coefficient of Na3V2（PO4）1.95（SO4）0.05O2F（VPS-1） is roughly double that of VP,leading to enhanced rate capability (80 C,75.5 mAh g-1) and cycling stability (111.0 mAh g-1capacity after 1000 cycles at 10 C current density) for ***-1 exhibits outstanding fast-charging capabilities,achieving an 80%state of charge in just 8.1 *** assembled VPS-1//SbSn/NPC full cell demonstrated stable cycling over 200 cycles at a high 5 C current,maintaining an average coulombic efficiency of 95.35%.

关键词： Anionic group modulation Polarization behavior Fast-charging Sodium-ion battery Fluorophosphate Cathode

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Neuroprotective potential for mitigating ischemia-reperfusion-induced damage

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Neural Regeneration Research 2025年第8期20卷 2199-2217页

作者： Zi Ye Runqing liu Hangxing Wang Aizhen Zuo Cen Jin Nan Wang Huiqi Sun Luqian Feng Hua yang The Clinical Medical College Guizhou Medical UniversityGuiyangGuizhou ProvinceChina Division of Infectious Diseases Department of Internal MedicinePeking Union Medical College HospitalChinese Academy of Medical Sciences and Peking Union Medical CollegeBeijingChina School of Medical Imaging Guizhou Medical UniversityGuiyangGuizhou ProvinceChina Division of Gastroenterology First Affiliated Hospital of Zhengzhou UniversityZhengzhouHenan ProvinceChina The Second Clinical Medical College Lanzhou UniversityLanzhouGansu ProvinceChina Department of Neurosurgery Affiliated Hospital of Guizhou Medical UniversityGuiyangGuizhou ProvinceChina

Reperfusion following cerebral ischemia causes both structural and functional damage to brain tissue and could aggravate a patient's condition;this phenomenon is known as cerebral ischemia-reperfusion *** studies have elucidated the neuroprotective role of the sirtuin protein family(Sirtuins)in modulating cerebral ischemia-reperfusion ***,the potential of utilizing it as a novel intervention target to influence the prognosis of cerebral ischemia-reperfusion injury requires additional *** this review,the origin and research progress of Sirtuins are summarized,suggesting the involvement of Sirtuins in diverse mechanisms that affect cerebral ischemia-reperfusion injury,including inflammation,oxidative stress,blood-brain barrier damage,apoptosis,pyroptosis,and *** therapeutic avenues related to Sirtuins that may improve the prognosis of cerebral ischemia-reperfusion injury were also investigated by modulating Sirtuins expression and affecting representative pathways,such as nuclear factor-kappa B signaling,oxidative stress mediated by adenosine monophosphate-activated protein kinase,and the forkhead box *** review also summarizes the potential of endogenous substances,such as RNA and hormones,drugs,dietary supplements,and emerging therapies that regulate Sirtuins *** review also reveals that regulating Sirtuins mitigates cerebral ischemia-reperfusion injury when combined with other risk *** Sirtuins show promise as a potential target for the treatment of cerebral ischemiareperfusion injury,most recent studies are based on rodent models with circadian rhythms that are distinct from those of humans,potentially influencing the efficacy of Sirtuinstargeting drug ***,this review provides new insights into the role of Sirtuins in the pathology and treatment of cerebral ischemia-reperfusion injury.

关键词： apoptosis autophagy blood-brain barrier dietary supplements drug hormones inflammation neuroprotection oxidative stress prognosis pyroptosis reperfusion injury risk factors RNA therapeutics

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实验性慢性肾缺血模型肾小管-间质细胞a-平滑肌肌动蛋白的表达和意义

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肾脏病与透析肾移植杂志 2004年第1期13卷 30-34页

作者：陈威杨守京刘彦仿贺巍王川第四军医大学西京医院肾内科西安710032 第四军医大学病理学教研室

目的:观察单侧肾动脉狭窄(RAS)大鼠模型慢性肾缺血组织中肾小管-间质a-平滑肌肌动蛋白(a-SMA)的表达和意义。方法:建立Goldblatt单侧RAS大鼠模型,观察大鼠慢性缺血肾脏在90天内不同阶段的病理改变;应用免疫组化法检测肾小管-间质a-SM... 详细信息

目的:观察单侧肾动脉狭窄(RAS)大鼠模型慢性肾缺血组织中肾小管-间质a-平滑肌肌动蛋白(a-SMA)的表达和意义。方法:建立Goldblatt单侧RAS大鼠模型,观察大鼠慢性缺血肾脏在90天内不同阶段的病理改变;应用免疫组化法检测肾小管-间质a-SMA及波形蛋白(vimentin)在不同时间点的表达;应用免疫荧光双标记激光共聚焦显微镜观察细胞角蛋白(cytokeratin,CK)与a-SMA在肾小管上皮细胞中的共定位情况。结果:RAS术后第5天首先出现肾小管vimentin阳性,术后第7天肾间质可见少量的a-SMA阳性细胞并随时间递增。通过连续切片观察到,vimentin阳性的肾小管周围肾间质细胞a-SMA表达增强,并与肾小管间质纤维化程度基本一致。当慢性缺血状态持续存在时,后期(术后第45天至90天)少数损伤的肾小管上皮细胞表达a-SMA。应用免疫荧光双标记激光共聚焦显微镜观察发现,部分a-SMA阳性的肾小管上皮细胞同时表达CK,并且个别细胞还有向间质游走的趋势。结论:在慢性肾缺血早期Vimentin阳性的肾小管上皮细胞本身可能诱导了肾间质固有细胞发生肌成纤维细胞转分化,参与肾间质纤维化的发生和发展;在慢性肾缺血后期,肾小管上皮细胞转分化可能是导致肾纤维化进行性发展的关键环节。

关键词：慢性肾缺血动物模型肾小管间质细胞 α-平滑肌肌动蛋白免疫荧光双标记肾纤维化

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矩形截面扭转弹簧设计与分析

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煤炭技术 2018年第4期37卷 196-198页

作者：于洋赵钰薇刘颖西安科技大学机械工程学院西安710054

针对大型、重型机械作业过程中出现的扭力不足问题,设计扭矩放大器,矩形截面扭转弹簧作为柔性扭矩传递机构,是确保扭矩放大的关键。利用力学基本理论计算公式进行扭转弹簧强度校核计算,通过有静强度分析与疲劳分析相结合的方法,进行弹... 详细信息

针对大型、重型机械作业过程中出现的扭力不足问题,设计扭矩放大器,矩形截面扭转弹簧作为柔性扭矩传递机构,是确保扭矩放大的关键。利用力学基本理论计算公式进行扭转弹簧强度校核计算,通过有静强度分析与疲劳分析相结合的方法,进行弹簧寿命预测,对改进完善以及疲劳研究提供了直接的理论依据,最后进行现场试验验证设计合理性。

关键词：扭矩放大器扭转弹簧静强度分析疲劳寿命

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Hydrogen-bonded organic framework-ionic liquid composite quasisolid electrolyte for high-performance lithium battery

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Nano Research 2025年第1期18卷 332-340页

作者： Junmei Zhang Yatao Wu Chenye Wang Yong liu Zhirong yang Shiyue Zhou Wenpeng Li Wenjia Wu Jingtao Wang School of Chemical Engineering Zhengzhou UniversityZhengzhou 450001China

Ionic liquids(ILs)hold great promise as highperformance electrolyte material due to their unique advantages including nonvolatility,high thermal stability and high ionic ***,the IL-based electrolytes always suffer from serious ion aggregation and high viscosity at low temperatures,leading to significantly decline in ionic ***,hydrogen-bonded organic framework-ionic liquid composite quasi-solid electrolyte(high temperature treatment(HT)-HOF-IL CQSE)was prepared through confining the IL electrolytes(ILEs)into the pore of HOF lamellar *** weak hydrogen bonding interactions within HOF nanosheets,together with the generated interactions between ILE and HOF,enable uniform and continuous distribution of ILE in HOF lamellar *** effectively inhibits the ion migration of ILE,which meanwhile serves as Li+transfer sites,affording high ionic conductivity of 5.7×10^(-5)S·cm-1 at-60 ℃,with high lithium-ion transference number of 0.69,whereas ILEs usually lose ionic conduction ability at such low *** assembled Li symmetrical cell can stably cycle at 0.2 mA·cm^(-2)and^(-2)0 ℃ for more than 1500 *** LiFePO_(4)|HT-HOF-IL CQSE|Li cell shows excellent cycling performance at 0.5 C at a wide temperature range of^(-2)0 to 60 ℃.This work may pave a new avenue for the development of high-performance IL-based composite electrolytes.

关键词： ionic liquid hydrogen-bonded organic framework low-temperature ionic conductivity lithium-ion transference number quasi-solid electrolyte

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Engineering of Fe d-band center in Fe_(3)O_(4)/CeO_(2)hetero-nanoparticles via orbital coupling for high-efficiency oxygen reduction electrocatalysis

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Nano Research 2025年第1期18卷 129-139页

作者： Jiayi liu Jingwen Yin Yingzi Lin Mingxin Pang Huan Pang Songtao Zhang Lin Xu Jun yang Yawen Tang Jiangsu Key Laboratory of New Power Batteries Jiangsu Collaborative Innovation Center of Biomedical Functional MaterialsSchool of Chemistry and Materials ScienceNanjing Normal UniversityNanjing 210023Chin a 2 State Key Laboratory of Multiphase Complex Systems Center of MesoscienceInstitute of Process EngineeringChinese Academy of SciencesBeijing 100190China School of Chemistry and Chemical Engineering Yangzhou UniversityYangzhou 225009China Testing Center Yangzhou UniversityYangzhou 225009China

The deliberate engineering of the d-band center of metal site represents an effective strategy to boost the intrinsic electrocatalytic performance toward the oxygen reduction reaction(ORR).Herein,following a heterointerfaceinduced orbital coupling rationale,we report a judicious design of an efficient ORR electrocatalyst consisting of Fe_(3)O_(4)/CeO_(2)hetero-nanoparticles in-situ encased into N-doped carbon nanofibers(abbreviated as Fe_(3)O_(4)/CeO_(2)@N-CNFs hereafter).The theoretic calculations uncover that the Fe_(3)O_(4)/CeO_(2)heterointerface-triggered orbital coupling can cause the down shift of the d-band center positions of Fe sites,which leads to the weakened chemisorption of oxygenated groups and lowered energy barrier for the potential-determining step,ultimately dramatically boosting the ORR intrinsic *** a consequence,the well-designed Fe_(3)O_(4)/CeO_(2)@N-CNFs display admirable ORR activity with a half-wave potential of 0.84 V and outstanding structural/electrochemical stability in an alkaline electrolyte,surpassing the commercial Pt/C benchmark and a majority of recently reported Fe_(3)O_(4)-based *** encouragingly,the Fe_(3)O_(4)/CeO_(2)@N-CNFsincorporated Zn-air battery outperforms the Pt/C-assembled counterpart with higher power density,larger energy density,and excellent cycling stability,serving as a competent candidate for ORR-involved renewable energy *** study offers an innovative approach for the rational manipulation of the d-band center and interfacial electron behavior of active sites toward the optimization of electrocatalytic performance.

关键词： hetero-nanoparticles electrospinning interfacial engineering orbital coupling oxygen reduction reaction

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Sulfolane‑Based Flame‑Retardant Electrolyte for High‑Voltage Sodium‑Ion Batteries

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Nano-Micro Letters 2025年第2期17卷 498-516页

作者： Xuanlong He Jie Peng Qingyun Lin Meng Li weibin Chen Pei liu Tao Huang Zhencheng Huang Yuying liu Jiaojiao Deng Shenghua Ye Xuming yang Xiangzhong Ren Xiaoping Ouyang Jianhong liu Biwei Xiao Jiangtao Hu Qianling Zhang Graphene Composite Research Center College of Chemistry and Environmental EngineeringShenzhen UniversityShenzhen 518060People’s Republic of China Center of Electron Microscopy State Key Laboratory of Silicon and Advanced Semiconductor MaterialsSchool of Materials Science and EngineeringZhejiang UniversityHangzhou 310027People’s Republic of China GRINM(Guangdong)Research Institute for Advanced Materials and Technology FoshanGuangdong 528051People’s Republic of China College of Energy Engineering Zhejiang UniversityHangzhouZhejiang 310027People’s Republic of China School of Materials Science and Engineering Xiangtan UniversityXiangtan 411105People’s Republic of China Shenzhen Eigen-Equation Graphene Technology Co.Ltd Shenzhen 518000People’s Republic of China

Sodium-ion batteries hold great promise as next-generation energy storage ***,the high instability of the electrode/electrolyte interphase during cycling has seriously hindered the development of *** particular,an unstable cathode–electrolyte interphase(CEI)leads to successive electrolyte side reactions,transition metal leaching and rapid capacity decay,which tends to be exacerbated under high-voltage ***,constructing dense and stable CEIs are crucial for high-performance *** work reports localized high-concentration electrolyte by incorporating a highly oxidation-resistant sulfolane solvent with non-solvent diluent 1H,1H,5H-octafluoropentyl-1,1,2,2-tetrafluoroethyl ether,which exhibited excellent oxidative stability and was able to form thin,dense and homogeneous *** excellent CEI enabled the O3-type layered oxide cathode NaNi_(1/3)Mn_(1/3)Fe_(1/3)O_(2)(NaNMF)to achieve stable cycling,with a capacity retention of 79.48%after 300 cycles at 1 C and 81.15%after 400 cycles at 2 C with a high charging voltage of 4.2 *** addition,its nonflammable nature enhances the safety of *** work provides a viable pathway for the application of sulfolane-based electrolytes on SIBs and the design of next-generation high-voltage electrolytes.

关键词： Sodium-ion batteries Sulfolane-based electrolyte High voltage Layered oxide cathode Flame retardant

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血液净化对烧伤脓毒症患者血清炎性细胞因子的影响

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西部医学 2018年第4期30卷 543-548页

作者：杨帆周伟刘薇赵坤郑梁张翔湖北医药学院太和医院整形烧伤科湖北十堰442000

目的探讨血液净化对烧伤脓毒症患者血清炎性细胞因子的影响。方法选取2013年1月~2014年12月入我院经烧伤科收治符合研究标准的烧伤患者28例。根据烧伤脓毒症患者的入院时间顺序,将患者平均分为对照组与观察组。对照组进行常规烧伤治疗,... 详细信息

目的探讨血液净化对烧伤脓毒症患者血清炎性细胞因子的影响。方法选取2013年1月~2014年12月入我院经烧伤科收治符合研究标准的烧伤患者28例。根据烧伤脓毒症患者的入院时间顺序,将患者平均分为对照组与观察组。对照组进行常规烧伤治疗,观察组患者在对照组治疗基础上进行血液净化治疗。比较两组患者治疗前1d、治疗后24、48h血液中WBC、Lac、Na+、PCT、PaO2/FiO2、BUN、Scr及炎症因子TNF-α、IL-6、IL-8水平变化。结果与治疗前1d相比,治疗后24、48h观察组氧合指数较对照组均明显升高(P0.05);观察组在治疗后24、48h的Lac水平呈下降趋势(P0.05);两组间治疗后各治疗时间点比较观察组血清Na+浓度下降幅度更显著(P0.05);观察组治疗后24h、48h的TNF-a、IL-6与IL-8的表达水平均较对照组佳(P<0.05);两组间治疗后各时间点TNF-a、IL-6与IL-8的表达水平具有差异(P<0.05)。结论烧伤脓毒症患者在常规治疗的基础上进行血液净化治疗,可有效清除患者体内炎症介质因子,改善烧伤脓毒症患者的脏器功能,维持机体内环境平衡,是治疗烧伤脓毒症的一种有效方法,可在临床推广运用。

关键词：血液净化烧伤脓毒症血清炎性细胞因子

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