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Utilizing engineered extracellular vesicles as delivery vectors in the management of ischemic stroke:a special outlook on mitochondrial delivery

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Neural Regeneration Research 2025年第8期20卷 2181-2198页

作者： Jiali chen Yiyang li Xingping Quan Jinfen chen Yan Han li Yang Manfei Zhou Greta Seng Peng Mok Ruibing Wang Yonghua Zhao Institute of Chinese Medical Sciences State Key Laboratory of Quality Research in Chinese MedicineUniversity of MacaoTaipaMacao Special Administrative RegionChina Department of Pharmacy Hunan Provincial People’s Hospitalthe First Affiliated Hospital of Hunan Normal UniversityChangshaHunan ProvinceChina Department of Electrical and Computer Engineering University of MacaoTaipaMacao Special Administrative RegionChina Department of Pharmaceutical Sciences Faculty of Health SciencesUniversity of MacaoTaipaMacao Special Administrative RegionChina

Ischemic stroke is a secondary cause of mortality worldwide,imposing considerable medical and economic burdens on *** vesicles,serving as natural nanocarriers for drug delivery,exhibit excellent biocompatibility in vivo and have significant advantages in the management of ischemic ***,the uncertain distribution and rapid clearance of extracellular vesicles impede their delivery *** utilizing membrane decoration or by encapsulating therapeutic cargo within extracellular vesicles,their delivery efficacy may be greatly ***,previous studies have indicated that microvesicles,a subset of large-sized extracellular vesicles,can transport mitochondria to neighboring cells,thereby aiding in the restoration of mitochondrial function post-ischemic *** extracellular vesicles have also demonstrated the capability to transfer mitochondrial components,such as proteins or deoxyribonucleic acid,or their sub-components,for extracellular vesicle-based ischemic stroke *** this review,we undertake a comparative analysis of the isolation techniques employed for extracellular vesicles and present an overview of the current dominant extracellular vesicle modification *** the complex facets of treating ischemic stroke,we also delineate various extracellular vesicle modification approaches which are suited to different facets of the treatment ***,given the burgeoning interest in mitochondrial delivery,we delved into the feasibility and existing research findings on the transportation of mitochondrial fractions or intact mitochondria through small extracellular vesicles and microvesicles to offer a fresh perspective on ischemic stroke therapy.

关键词： delivery engineering extracellular vesicles identification ischemic stroke isolation mitochondria targeting strategy therapeutic effects

Adaptive-basis decomposition-based low-rank network for efficient non-uniform motion deblurring

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Optoelectronics Letters 2025年第1期21卷 43-50页

作者： chen Lei XIONG Qingbo ZHANG Wei li Runde School of Software Henan University School of Applied Technology China University of Labor Relations

In this study, we present a unified sparsity-driven framework that significantly enhances motion deblurring performance by integrating two key components: a custom-designed dataset and a low-rank module(LRM). This framework leverages the inherent sparsity of per-pixel blur kernels to bolster both deblurring accuracy and model interpretability. Firstly, we propose an adaptive-basis decomposition-based deblurring(ADD) approach, which constructs a tailored training dataset to enhance the generalization capacity of the deblurring network. The ADD framework adaptively decomposes motion blur into sparse basis elements, effectively addressing the intricacies associated with non-uniform blurs. Secondly, an LRM is proposed to improve the interpretability of deblurring models as a plug-and-play module, primarily designed to identify and harness the intrinsic sparse features in sharp images. A series of ablation studies have been conducted to substantiate the synergistic advantages of combining the proposed ADD with the LRM for overall improvement in deblurring efficacy. Subsequently, we empirically demonstrate through rigorous experimentation that incorporating the LRM into an existing Uformer network leads to substantial enhancement in reconstruction performance. This integration yields a sparsity-guided low-rank network(SGLRN). Operating under the overarching principle of sparsity, SGLRN consistently outperforms state-of-the-art methods across multiple standard deblurring benchmarks. Comprehensive experimental results, assessed through quantitative metrics and qualitative visual evaluations, provide compelling evidence of its effectiveness. The overall deblurring results are available at Google Drive.

关键词： Image enhancement

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证券投资基金相对投资绩效评价

四川大学学报（哲学社会科学版） 2001年第2期 32-37页

作者：陈刚李光金四川大学管理学院

通过对基金之间的风险和收益的比较，运用DEA方法，提出用风险—收益相对效率比—η系数(即以一定的比率δ增加投资的收益率的同时以一定的比率θ来降低风险水平)作为评价基金的投资绩效指数。结合各基金在不同时期的收益水平和风险水... 详细信息

通过对基金之间的风险和收益的比较，运用DEA方法，提出用风险—收益相对效率比—η系数(即以一定的比率δ增加投资的收益率的同时以一定的比率θ来降低风险水平)作为评价基金的投资绩效指数。结合各基金在不同时期的收益水平和风险水平，对投资基金的投资绩效进行综合评价。同时，对中国已上市的投资基金进行实证分析。

关键词：投资收益率相对标准差风险证券投资基金投资绩效评价 DEA方法评价指标实证分析

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颞骨内面神经影像解剖研究进展

中国医学影像技术 2008年第12期24卷 2030-2032页

作者：张媛鲜军舫陈光利首都医科大学附属北京同仁医院放射科北京100730

磁共振成像和多层螺旋CT是颞骨内面神经和面神经管检查的理想方法,探索颞骨内面神经的正常影像解剖及变异以及其与周围结构的毗邻关系,对面瘫定位、定性诊断和治疗具有重要的指导意义,对避免耳科手术时意外损害面神经具有极其重要的临... 详细信息

磁共振成像和多层螺旋CT是颞骨内面神经和面神经管检查的理想方法,探索颞骨内面神经的正常影像解剖及变异以及其与周围结构的毗邻关系,对面瘫定位、定性诊断和治疗具有重要的指导意义,对避免耳科手术时意外损害面神经具有极其重要的临床价值。本文综述颞骨内面神经影像解剖方面的研究进展。

关键词：面神经体层摄影术,X线计算机磁共振成像

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基站越区覆盖的控制

广西通信技术 2008年第1期 15-21页

作者：陈理光中国移动通信集团广西有限公司广西南宁530028

对基站越区覆盖对移动通信网络的影响进行了分析,研究了如何通过各种工具来分析评估基站的越区覆盖,并提出控制基站越区覆盖的方法。

关键词：越区覆盖分析评估控制

气相色谱法直接测量^(18)F-FDG中Kryptofix 2.2.2的含量

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同位素 2007年第2期20卷 105-107,97页

作者：花宁陈立光广州市原子高科同位素医药有限公司广东广州510089 广东省人民医院PET中心广东广州510080

以OV-101型毛细管作为分离柱,利用氢火焰检测器(FID)和氮磷检测器(NPD),采用气相色谱法检测了18F-脱氧葡萄糖(18F-FDG)中的Kryptofix 2.2.2。结果显示,氨基聚醚Kryptofix 2.2.2在分离柱的保留时间为2.4 min,最低检测水平为0.50 mg/L。3... 详细信息

以OV-101型毛细管作为分离柱,利用氢火焰检测器(FID)和氮磷检测器(NPD),采用气相色谱法检测了18F-脱氧葡萄糖(18F-FDG)中的Kryptofix 2.2.2。结果显示,氨基聚醚Kryptofix 2.2.2在分离柱的保留时间为2.4 min,最低检测水平为0.50 mg/L。30批次本中心常规制备的18F-FDG中Kryptofix 2.2.2含量检测值为1.10±0.15 mg/L;10批没有应用AG50型树脂吸附的平均含量检测值为106.0±21.0 mg/L。以上结果表明,应用气相色谱法对Kryptofix 2.2.2可以进行快速、高灵敏度检测,其检测灵敏度比TLC法高出50倍;同时可直接测量,排除其他杂质的干扰;该方法可推广应用于18F-FDG和其它18F亲核标记正电子药物的日常质量控制检测。

关键词： ^18F-FDG Kryptofix 2.2.2 气相色谱

Wave effect of gravitational waves intersected with a microlens field Ⅱ:An adaptive hierarchical tree algorithm and population study

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Science China(Physics,Mechanics & Astronomy) 2025年第1期Mechanics & Astronomy) .卷 241-254页

作者： Xikai Shan Guoliang li Xuechun chen Wen Zhao Bin Hu Shude Mao Department of Astronomy Tsinghua University Purple Mountain Observatory Chinese Academy of Sciences Institute for Frontier in Astronomy and Astrophysics Beijing Normal University School of Physics and Astronomy Beijing Normal University School of Astronomy and Space Science University of Science and Technology of China CAS Key Laboratory for Researches in Galaxies and Cosmology Department of Astronomy University of Science and Technology of ChinaChinese Academy of Sciences

The gravitational lensing wave effect generated by a microlensing field embedded in a lens galaxy is an inevitable phenomenon in strong lensed gravitational waves （SLGWs）.This effect presents both challenges and opportunities for the detection and application of ***,investigating this wave effect requires computing a complete diffraction integral over each microlens in the *** is extremely time-consuming due to the large number of microlenses （10～3-10～6）.Therefore,simply adding all the microlenses is ***,the complexity of the time delay surface makes the lens plane resolution a crucial factor in controlling numerical *** this paper,we propose a trapezoid approximation-based adaptive hierarchical tree algorithm to meet the challenges of calculation speed and *** find that this algorithm accelerates the calculation by four orders of magnitude compared to the simple adding method and is one order of magnitude faster than the fixed hierarchical tree algorithm proposed for electromagnetic *** importantly,our algorithm ensures controllable numerical errors,increasing confidence in the *** with our previous work （***.66,239511,2023）,this paper addresses all numerical issues,including integral convergence,precision,and computational time1).Finally,we conducted a population study on the microlensing wave effect of SLGWs using this algorithm and found that the microlensing wave effect cannot be ignored,especially for Type II SLGWs （from saddle position of the time delay surface） due to their intrinsic geometric structures and their typical intersection with a denser microlensing ***,more than 33%（11%） of SLGWs have a mismatch larger than 1%（3%） compared to the unlensed ***,we found that the mismatch between signal pairs in a doubly imaged GW is generally larger than 10-3,and 61%（25%） of signal pairs have a mismatch larger than 1%（3%）.Therefo

关键词： gravitational lensing diffractional integral algorithm gravitational wave

Tranylcypromine upregulates Sestrin 2 expression to ameliorate NLRP3-related noise-induced hearing loss

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Neural Regeneration Research 2025年第5期20卷 1483-1494页

作者： Xihang chen Zhifeng chen Menghua li Weiwei Guo Shuolong Yuan liangwei Xu Chang lin Xi Shi Wei chen Shiming Yang Senior Department of Otolaryngology Head and Neck Surgery Chinese PLA General HospitalChinese PLA Medical SchoolBeijingChina State Key Laboratory of Hearing and Balance Science BeijingChina National Clinical Research Center for Otolaryngologic Diseases BeijingChina Key Laboratory of Hearing Science Ministry of EducationBeijingChina Beijing Key Laboratory of Hearing Impairment Prevention and Treatment BeijingChina Department of Otorhinolaryngology Head and Neck Surgery The First Affiliated Hospital of Fujian Medical UniversityFuzhouFujian ProvinceChina Department of Otolaryngology Head and Neck Surgery The 940th Hospital of Joint Logistics Support Force of Chinese PLALanzhouGansu ProvinceChina Key Laboratory of Tropical Biological Resources of Ministry of Education School of Pharmaceutical SciencesHainan UniversityHaikouHainan ProvinceChina Academician Workstation of Hainan University School of Pharmaceutical SciencesYazhou BaySanyaHainan ProvinceChina

Noise-induced hearing loss is the primary non-genetic factor contributing to auditory ***,there are currently no effective pharmacological interventions for patients with noise-induced hearing ***,we present evidence suggesting that the lysine-specific demethylase 1 inhibitor–tranylcypromine is an otoprotective agent that could be used to treat noise-induced hearing loss,and elucidate its underlying regulatory *** established a mouse model of permanent threshold shift hearing loss by exposing the mice to white broadband noise at a sound pressure level of 120 d B for 4 *** found that tranylcypromine treatment led to the upregulation of Sestrin2(SESN2)and activation of the autophagy markers light chain 3B and lysosome-associated membrane glycoprotein 1 in the cochleae of mice treated with *** noise exposure group treated with tranylcypromine showed significantly lower average auditory brainstem response hearing thresholds at click,4,8,and 16 k Hz frequencies compared with the noise exposure group treated with *** findings indicate that tranylcypromine treatment resulted in increased SESN2,light chain 3B,and lysosome-associated membrane glycoprotein 1 expression after noise exposure,leading to a reduction in levels of 4-hydroxynonenal and cleaved caspase-3,thereby reducing noise-induced hair cell ***,immunoblot analysis demonstrated that treatment with tranylcypromine upregulated SESN2 expression via the autophagy *** treatment also reduced the production of NOD-like receptor family pyrin domaincontaining 3(NLRP3)*** conclusion,our results showed that tranylcypromine treatment ameliorated cochlear inflammation by promoting the expression of SESN2,which induced autophagy,thereby restricting NLRP3-related inflammasome signaling,alleviating cochlear hair cell loss,and protecting hearing *** findings suggest that inhibiting lysine-specific demethylase 1 is a

关键词： 4-hydroxynonenal apoptosis autophagy cleaved caspase-3 inflammation NOD-like receptor family pyrin domain-containing 3(NLRP3) noise-induced hearing loss oxidative stress Sestrin2 tranylcypromine

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血管周围间隙的MR表现

中国医学影像技术 2006年第3期22卷 388-391页

作者：王光彬王翠艳陈立光姚健魏煜龙郭力山东省医学影像学研究所山东济南250021

目的分析总结血管周围间隙发生部位及MRI表现,提高其诊断符合率。方法随机选择磁共振检查显示有血管周围间隙的病例130例;其中16例进行了MR增强扫描,21例行弥散加权成像;19例行CT检查,4例行CT增强扫描。结果130例病例血管周围间隙均为... 详细信息

目的分析总结血管周围间隙发生部位及MRI表现,提高其诊断符合率。方法随机选择磁共振检查显示有血管周围间隙的病例130例;其中16例进行了MR增强扫描,21例行弥散加权成像;19例行CT检查,4例行CT增强扫描。结果130例病例血管周围间隙均为双侧多发,呈圆形或椭圆形、点状、条状或线状,边界清晰锐利,条形或线形的血管周围间隙多成簇出现,且沿着纤维走行方向排列。发生部位包括前连合两侧(97.69%,127/130)、近大脑凸面的半卵圆中心(85.38%,111/130)、脑干大脑脚处(37.69%,49/130)、极外囊(23.85%,31/130),小脑齿状核旁白质仅见1例。MRI不同序列显示间隙信号与脑脊液信号完全一致,增强扫描无强化征象。随访病例均未发现明显变化。小血管周围间隙见于任何年龄组的所有130例病例,而17例可见大血管周围间隙间隙,其中3例有轻度占位效应。结论血管周围间隙可见于任何年龄,好发生于前连合两侧、近大脑凸面半卵圆中心、脑干大脑脚、极外囊,呈条形或线形、圆形或卵圆形,边界清晰锐利,绝大多数无占位效应,MR成像各种序列显示与脑脊液信号完全一致。

关键词：血管周围间隙磁共振成像