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Recent progress in the applications of presynaptic dopaminergic positron emission tomography imaging in parkinsonism

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Neural Regeneration Research 2025年第1期20卷 93-106页

作者： Yujie Yang Xinyi Li Jiaying Lu Jingjie Ge Mingjia Chen Ruixin Yao Mei tian Jian wang Fengtao Liu Chuantao Zuo Key Laboratory of Arrhythmias Ministry of EducationDepartment of Medical GeneticsShanghai East HospitalSchool of MedicineTongji UniversityShanghaiChina Department of Neurology National Research Center for Aging and MedicineNational Center for Neurological Disordersand State Key Laboratory of Medical NeurobiologyHuashan HospitalFudan UniversityShanghaiChina Department of Nuclear Medicine&PET Center National Center for Neurological Disordersand National Clinical Research Center for Aging and MedicineHuashan HospitalFudan UniversityShanghaiChina International Human Phenome Institutes(Shanghai) ShanghaiChina Human Phenome Institute Fudan UniversityShanghaiChina

Nowadays,presynaptic dopaminergic positron emission tomography,which assesses deficiencies in dopamine synthesis,storage,and transport,is widely utilized for early diagnosis and differential diagnosis of *** review provides a comprehensive summary of the latest developments in the application of presynaptic dopaminergic positron emission tomography imaging in disorders that manifest *** conducted a thorough literature search using reputable databases such as PubMed and Web of *** criteria involved identifying peer-reviewed articles published within the last 5 years,with emphasis on their relevance to clinical *** findings from these studies highlight that presynaptic dopaminergic positron emission tomography has demonstrated potential not only in diagnosing and differentiating various Parkinsonian conditions but also in assessing disease severity and predicting ***,when employed in conjunction with other imaging modalities and advanced analytical methods,presynaptic dopaminergic positron emission tomography has been validated as a reliable in vivo *** validation extends to screening and exploring potential neuropathological mechanisms associated with dopaminergic *** summary,the insights gained from interpreting these studies are crucial for enhancing the effectiveness of preclinical investigations and clinical trials,ultimately advancing toward the goals of neuroregeneration in parkinsonian disorders.

关键词： aromatic amino acid decarboxylase brain imaging dopamine transporter Parkinson’s disease parkinsonism positron emission tomography presynaptic dopaminergic function vesicle monoamine transporter type 2

阻塞性睡眠呼吸暂停低通气综合征合并高血压患者内皮功能标志物检测的临床意义

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生物医学工程与临床 2017年第5期21卷 539-541页

作者：张天骄王欣李树华大连医科大学辽宁大连116044 吉林大学第一医院检验科吉林长春130021 沈阳陆军总院耳鼻喉科辽宁沈阳110840

目的探讨阻塞性睡眠呼吸暂停低通气综合征(OSAHS)合并高血压患者血清一氧化氮(NO)、血浆内皮素-1(ET-1)及内皮微粒(EMP)的水平变化及其相关性,为OSAHS合并高血压的早期预防和治疗提供依据。方法选择2016年1月至12月在吉林大学第一医院... 详细信息

目的探讨阻塞性睡眠呼吸暂停低通气综合征(OSAHS)合并高血压患者血清一氧化氮(NO)、血浆内皮素-1(ET-1)及内皮微粒(EMP)的水平变化及其相关性,为OSAHS合并高血压的早期预防和治疗提供依据。方法选择2016年1月至12月在吉林大学第一医院就诊的OSAHS患者80例:单纯OSAHS患者(单纯OSAHS组)40例,其中男性32例,女性8例,年龄(54.5±7.8)岁;合并高血压患者(合并高血压组)40例,其中男性33例,女性7例,年龄(54.2±7.3)岁。对照组为30例健康体检者,其中男性24例,女性6例,年龄(54.2±7.5)岁。分别采用比色法检测NO,双抗体夹心法检测ET-1,流式细胞技术检测EMP。结果合并高血压组、单纯OSAHS组ET-1、EMP水平均显著高于对照组(P<0.01),NO低于对照组(P<0.01);对照组、单纯OSAHS组、合并高血压组ET-1水平依次升高(F=19.661,P<0.01),EMP水平亦依次升高(F=606.748,P<0.01),NO依次降低(F=61.601,P<0.01);合并高血压组EMP与ET-1正相关(r=0.841,P<0.05),与NO负相关(r=-0.944,P<0.05);单纯OSAHS组EMP与ET-1正相关(r=0.780,P<0.05),与NO负相关(r=-0.897,P<0.05)。结论 OSAHS患者合并高血压与ET-1、EMP、NO水平有关,联合监测上述指标早期改善OSAHS患者通气功能,能够评估OSAHS并发高血压的发生,为临床治疗提供参考。

关键词：睡眠呼吸暂停低通气综合征高血压内皮微粒内皮素-1 一氧化氮

Staged dendrite suppression for high safe and stable lithium-sulfur batteries

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Journal of Energy Chemistry 2025年第1期100卷 674-683页

作者： Jun Jiang Zhenjie Lu Yanwen Ding Shujun Liu Zhijie Qi tian Tang Yunfan Zhang Zhiyuan Ma Jingwen Sun Liang Xue Wenyao Zhang Pan Xiong Xin wang Junwu Zhu Yongsheng Fu Key Laboratory for Soft Chemistry and Functional Materials of Ministry of Education Nanjing University of Science and Technology Jiangsu Pylon Battery Co.Ltd

The unavoidable dendrite growth and shuttle effect have long been stranglehold challenges limiting the safety and practicality of lithium-sulfur ***,we propose a dual-action strategy to address the lithium dendrite issue in stages by constructing a multifunctional surface-negatively-charged nanodiamond layer with high ductility and robust puncture resistance on polypropylene （PP） *** uniformly loaded compact negative layer can not only significantly enhance electron transmission efficiency and promote uniform lithium deposition,but also reduce the formation of dendrite during early deposition *** importantly,under the strong puncture stress encountered during the deterioration of lithium dendrite growth under limiting current,the high ductility and robust puncture resistance（145.88 MPa） of as-obtained nanodiamond layer can effectively prevent short circuits caused by unavoidable lithium *** Li||Li symmetrical cells assembled with nanodiamond layer modified PP demonstrated a stable cycle of over 1000 h at 2 mA cm-2with a polarization voltage of only 29.3 ***,the negative charged layer serves as a physical barrier blocking lithium polysulfide ions,effectively mitigating capacity *** improved cells achieved a capacity decay of only 0.042%per cycle after 700 cycles at 3 C,demonstrating effective suppression of dendrite growth and capacity attenuation,showing promising prospect.

关键词： Lithium-sulfur batteries Staged dendrite suppression Shuttle effect Surface-negatively-charged nanodiamond

Gamma-glutamyl transferase 5 overexpression in cerebrovascular endothelial cells improves brain pathology,cognition,and behavior in APP/PS1 mice

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Neural Regeneration Research 2025年第2期20卷 533-547页

作者： Yanli Zhang tian Li Jie Miao Zhina Zhang Mingxuan Yang Zhuoran wang Bo Yang Jiawei Zhang Haiting Li Qiang Su Junhong Guo Department of Neurology First Hospital of Shanxi Medical UniversityTaiyuanShanxi ProvinceChina Department of Neurology Sixth Hospital of Shanxi Medical University(General Hospital of Tisco)TaiyuanShanxi ProvinceChina Department of Physiology Key Laboratory of Cellular PhysiologyMinistry of EducationShanxi Medical UniversityTaiyuanShanxi ProvinceChina Department of Hernia and Abdominal Wall Surgery Shanxi Bethune HospitalShanxi Academy of Medical SciencesTongji Shanxi HospitalThird Hospital of Shanxi Medical UniversityTaiyuanShanxi ProvinceChina Department of Laboratory Medicine of Fenyang College Shanxi Medical UniversityFenyangShanxi ProvinceChina

In patients with Alzheimer’s disease,gamma-glutamyl transferase 5(GGT5)expression has been observed to be downregulated in cerebrovascular endothelial ***,the functional role of GGT5 in the development of Alzheimer’s disease remains *** study aimed to explore the effect of GGT5 on cognitive function and brain pathology in an APP/PS1 mouse model of Alzheimer’s disease,as well as the underlying *** observed a significant reduction in GGT5 expression in two in vitro models of Alzheimer’s disease(Aβ_(1-42)-treated hCMEC/D3 and bEnd.3 cells),as well as in the APP/PS1 mouse ***,injection of APP/PS1 mice with an adeno-associated virus encoding GGT5 enhanced hippocampal synaptic plasticity and mitigated cognitive ***,increasing GGT5 expression in cerebrovascular endothelial cells reduced levels of both soluble and insoluble amyloid-βin the brains of APP/PS1 *** effect may be attributable to inhibition of the expression ofβ-site APP cleaving enzyme 1,which is mediated by nuclear factor-kappa *** findings demonstrate that GGT5 expression in cerebrovascular endothelial cells is inversely associated with Alzheimer’s disease pathogenesis,and that GGT5 upregulation mitigates cognitive deficits in APP/PS1 *** findings suggest that GGT5 expression in cerebrovascular endothelial cells is a potential therapeutic target and biomarker for Alzheimer’s disease.

关键词： Alzheimer’s disease amyloid-β APP/PS1 mice cerebrovascular endothelial cells cognitive deficits gamma-glutamyl transferase 5 neurovascular unit nuclear factor‐kappa B synaptic plasticity β-site APP cleaving enzyme 1

黄芩苷与苦参碱分子间相互作用的量子化学计算与验证

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原子与分子物理学报 2025年第4期42卷 8-14页

作者：董志舒启江田爽王皎侯安国王文苹云南中医药大学中药学院云南省南药可持续利用重点实验室昆明650500

为探究苦参碱能极大增强黄芩苷在水中的溶解度的原因,采用量子计算对二者反应过程及共存状态进行分析,并使用单晶衍射和红外图谱验证计算结果.本研究表明,黄芩苷和苦参碱并非简单的以非共价作用相结合,二者存在质子转移现象,反应生成黄... 详细信息

为探究苦参碱能极大增强黄芩苷在水中的溶解度的原因,采用量子计算对二者反应过程及共存状态进行分析,并使用单晶衍射和红外图谱验证计算结果.本研究表明,黄芩苷和苦参碱并非简单的以非共价作用相结合,二者存在质子转移现象,反应生成黄芩苷阴离子和苦参碱阳离子,以静电作用为主导形成共无定型物,导致水溶性极大增加.

关键词：苦参碱黄芩苷质子转移离子共无定型物

Preparation,Mechanical and Biological Properties of Inkjet Printed Alginate/Gelatin Hydrogel

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Journal of Bionic Engineering 2021年第3期18卷 574-583页

作者： tian jiao Qin Lian Tingze Zhao Huichao wang Dichen Li State Key Laboratory for Manufacturing System Engineering Xi'an Jiaotong UniversityXi'an 710049China

3D printing has made remarkable progress in soft tissue reconstruction enabling the custom design of complex material implants with patient specific *** aim of this study was to inkjet print mechanically reinforced biocompatible ***,we developed a double crosslinked ink by optimizing the rheological properties of solutions of sodium alginate(NaAlg),NaAlg/transglutaminase(TG),CaCl_(2)and gelatin/CaCl_(2).The results showed that a two-component ink system comprising NaAlg(4%w/v)/TG(0.8%w/v)and gelatin(4%w/v)/CaCl_(2)(3%w/v)gave optimum *** mechanical and biological properties of printed alginate/gelatin hydrogels prepared from inks with different gelatin contents,and incorporated fibroblasts,were characterized by Scanning Electron Microscope(SEM),mechanical testing and laser confocal *** compressive moduli of alginate/gelatin hydrogels could be adjusted from 19.2 kPa±1.2 kPa to 65.9 kPa±3.3 kPa by increasing the content of *** incubation for 7 d,fibroblasts had permeated all printed hydrogels and the rate of proliferation increased with increasing gelatin *** highest cell proliferation rate(497%)was obtained in a hydrogel containing 4.5%(w/v)*** study offers a new strategy for the fabrication of 3D structures used to mimic the function of native tissues.

关键词： biofabrication inkjet printing double crosslinking ink mechanical and biological properties hydrogel preparation

Near-infrared brain functional characteristics of mild cognitive impairment with sleep disorders

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World Journal of Psychiatry 2025年第1期15卷 106-116页

作者： Heng Liao Sha Liao Yu-jiao Gao Xi wang Li-Hong Guo Su Zheng Wu Yang Yi-Nan Dai Sleep Psychosomatic Medicine Center Taihe Hospital of Shiyan CityAffiliated Hospital of Hubei University of MedicineShiyan 442000Hubei ProvinceChina Department of Integrated Chinese and Western Medicine Taihe Hospital of Shiyan CityAffiliated Hospital of Hubei University of MedicineShiyan 442000Hubei ProvinceChina Department of Orthopaedics Taihe Hospital of Shiyan CityAffiliated Hospital of Hubei University of MedicineShiyan 442000Hubei ProvinceChina Department of Rehabilitation Taihe Hospital of Shiyan CityAffiliated Hospital of Hubei University of MedicineShiyan 442000Hubei ProvinceChina

BACKGROUND Mild cognitive impairment(MCI)has a high risk of progression to Alzheimer’s *** disease is often accompanied by sleep disorders,and whether sleep disorders have an effect on brain function in patients with MCI is *** To explore the near-infrared brain function characteristics of MCI with sleep *** A total of 120 patients with MCI(MCI group)and 50 healthy subjects(control group)were *** subjects underwent the functional near-infrared spec-troscopy *** baseline data,Mini-Mental State Examination,Montreal Cognitive Assessment scale,fatigue severity scale(FSS)score,sleep parameter,and oxyhemoglobin(Oxy-Hb)concentration and peak time of functional near-infrared spectroscopy test during the task *** relationship between Oxy-RESULTS Compared with the control group,the FSS score of the MCI group was higher(t=11.310),and the scores of Pittsburgh sleep quality index,sleep time,sleep efficiency,nocturnal sleep disturbance,and daytime dysfunction were higher(Z=-10.518,-10.368,-9.035,-10.661,-10.088).Subjective sleep quality and total sleep time scores were lower(Z=-11.592,-9.924).The sleep efficiency of the MCI group was lower,and the awakening frequency,rem sleep latency period,total sleep time,and oxygen desaturation index were higher(t=5.969,5.829,2.887,3.003,5.937).The Oxy-Hb concentration at T0,T1,and T2 in the MCI group was lower(t=14.940,11.280,5.721),and the peak time was higher(t=18.800,13.350,9.827).In MCI patients,the concentration of Oxy-Hb during T0 was negatively correlated with the scores of Pittsburgh sleep quality index,sleep time,total sleep time,and sleep efficiency(r=-0.611,-0.388,-0.563,-0.356).It was positively correlated with sleep efficiency and total sleep time(r=0.754,0.650),and negatively correlated with oxygen desaturation index(r=-0.561)and FSS score(r=-0.526).All comparisons were P<*** Patients with MCI and sleep disorders have lower near-infrared brain function than norm

关键词： Mild Cognitive impairment Sleep disorders Near-infrared Brain functional Characteristics

FCC-to-HCP Phase Transformation in CoCrNi_x Medium-Entropy Alloys

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Acta Metallurgica Sinica(English Letters) 2020年第8期33卷 1151-1158页

作者： Jia-Qi Zhao Hua tian Zhong wang Xue-jiao wang Jun-Wei Qiao College of Materials Science and Engineering Taiyuan University of TechnologyTaiyuan 030024China College of Information and Computer Taiyuan University of TechnologyTaiyuan 030024China

A hybrid first-principles/Monte Carlo simulation is combined with experiments to study the structure and elastic properties of CoCrNi_x(x=1-0.5)*** experimental X-ray diffraction patterns show that the structures have changed from the single-phase face-centered cubic(FCC)structure at x=1-0.8 to the coexistence of FCC and the hexagonal close-packed structures at x=0.7-0.5,which is further confirmed by calculations on mixing *** elastic moduli by calculation are basically in agreement with ***-temperature tension shows that the six alloys have a certain plasticity,the strength and plasticity of the alloys have a linear decrease with the decrease in Ni contents,and the plasticity of the alloys drops from 84 to 23%.Furthermore,first-principles density function theory calculations were employed to reveal the electronic and magnetic structures of *** electron density of states for all alloys is asymmetrical,which illustrates that the alloys are *** is found that Cr atoms can suppress the ferromagnetism of alloys,since Cr atoms have both positive and negative magnetic moments in all alloys.

关键词： Hexagonal close-packed(HCP)structure Medium-entropy alloys Magnetic Mechanical properties Phase transformation High-entropy alloys

Studies on a Novel Characteristic Atom-pair Holographic Code Applied to Quantitative Structure-chromatographic Retention Relationship of Organic Compounds

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Chinese Journal of Structural Chemistry 2006年第11期25卷 1337-1342页

作者： ZHOU Peng tian Fei-Fei wang jiao-Na LI Zhi-Liang College of Chemistry and Chemical Engineering Chongqing University Chongqing 400044 China State Key Laboratory of Chemo/Biosensing and Chemometrics Changsha 410012 China

6 Atomic fragment types of organic compound have been defined, and the multilevel atom-pair frequency matrix has been constructed according to the occurrence number in pairs of atomic fragments with different bond lengths in the molecule. On the basis of them, a novel molecular coding technique： characteristic atom-pair holographic code （CAHC）, is obtained. To some extent, this method exhibits a large number of benefits at the same time. For example, it can calculate 2D molecular topological descriptor easily, operate without difficulty and possess definite physicochemical meaning of 3D molecular structural characterization methods, and may fetch the complicated information of molecule, etc. Therefore, it is appropriate for the study on quantitative structure-property/activity relationship （QSPR/QSAR） of medicines and biological molecules. We attempt in this paper to utilize the method of CAHC to the quantitative prediction of reversed-phase liquid chromatogram （RPLC） retention data of 33 purine derivatives and 24 steroids. The fitting multiple correlation coefficient R2, cross-validated multiple correlation coefficient Q2 and predicted ability Q^2 pred over test set＇s samples of obtained partial least-square （PLS） regression model are respectively 0.990, 0.893 and 0.977, 0.897, 0.941.

关键词： characteristic atom-pair holographic code quantitative structure-chromatographic retention relationship characterization of molecular structure partial least-square regression