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TIMP-1 Production in Human Retinal Pigment Epithelial Cells after Laser Exposure

Eye Science 2005年第1期21卷 31-37页

作者： Alvin K.H.Kwok timothy y.y.lai Hin-Fai yam Chi-Pui Pang Department of Ophthalmology & Visual Sciences Department of Ophthalmology & Visual SciencesDepartment of Ophthalmology & Visual SciencesDepartment of Ophthalmology & Visual Sciences The Chinese University of Hong KongHong Kong SAR Department of OphthalmologyHong Kong Sanatorium and HospitalHong Kong SARThe Chinese University of Hong KongHong Kong SARThe Chinese University of Hong KongHong Kong SARThe Chinese University of Hong KongHong Kong SAR

Purpose: To investigate changes in the production of tissue inhibitor of metalloproteinase type 1 (TIMP-1) by human retinal pigment epithelial (RPE) cells following argon laser ***: Human cultured ARPE19 cells were exposed to argon green laser at four different energy levels ranging from 60mW to 360mW. After laser exposure, the culture media were sampled at 0, 24, 72 and 144 hours for TIMP-1 concentration produced by the RPE cells. The levels of TIMP-1 in the cells treated with different laser energy levels were compared with a control group not exposed to laser *** for proliferating cell nuclear antigen (PCNA) was performed to detect any adverse effects on the RPE cells caused by laser ***: Immediately after laser exposure, the concentration of TIMP- 1 was not detectable. At 24 hours after laser exposure, the concentration of TIMP-1 increased significantly in RPE cells treated with 120mW and 240mW at 24 hours (P=0.006 and P=0.001respectively) compared with control cells. At 72 hours after treatment, RPE cells treated at 120mW, 240mW and 360mW demonstrated significantly increase in TIMP-1production compared with control (P=0.003, P ＜ 0.001 and P ＜ 0.001, respectively).No significant reduction in cell viability was observed following laser application as detected by PCNA ***: Our results demonstrated that early TIMP-1 production by RPE cells in cell cultures was enhanced following laser exposure.

关键词： TIMP-1 视网膜上皮细胞激光损伤免疫细胞学视色素

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Evaluation of the association of C5 with neovascular age-related macular degeneration and polypoidal choroidal vasculopathy

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Eye and Vision 2019年第1期6卷 291-297页

作者： Ke Liu Li Ma timothy y.y.lai Marten E.Brelen Pancy O.S.Tam Clement C.Tham Chi Pui Pang Li Jia Chen Department of Ophthalmology and Visual Sciences The Chinese University of Hong KongHong KongChina Department of Ophthalmology and Visual Sciences Prince of Wales HospitalHong KongChina

Background:Neovascular age-related macular degeneration(AMD)and polypoidal choroidal vasculopathy(PCV)are sight-threatening maculopathies with both environmental and genetic risk *** have previously shown relative risks posed by genes of the complement pathways to neovascular AMD and ***:In this study,we investigated the haplotype-tagging single nucleotide polymorphisms(SNPs)in the complement component 5(C5)gene in 708 unrelated Chinese individuals:200 neovascular AMD patients,233 PCV patients and 275 *** tagging SNPs in C5 were *** single SNP association analysis,haplotype-based association analysis and gene-gene interaction analysis between C5 and other AMD-associated genes were ***:The results revealed none of the six tagging SNPs of the C5 gene had a significant association with neovascular AMD or PCV(P>0.05).We also found insignificant haplotype-based association,and no significant SNPSNP interaction between C5 and other genes(including C2-CFB-RDBP-SKIV2L,SERPING1,CETP,ABCG1,PGF,ANGPT2,CFH and HTRA1)for neovascular AMD and ***:This study showed no statistical significance in the genetic association of C5 with neovascular AMD or PCV in a Hong Kong Chinese *** studies in large samples from different populations are warranted to elucidate the role of C5 in the genetic susceptibility of AMD and PCV.

关键词： Age-related macular degeneration Polypoidal choroidal vasculopathy Complete component 5 C5 Genetic association Single-nucleotide polymorphism

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绿茶提取物表没食子儿茶素-3-没食子酸酯对慢性青光眼小鼠神经保护作用观察

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中华眼底病杂志 2017年第1期33卷 68-71页

作者：沈策英陈兰兰姜利斌 timothy y.y.lai 首都医科大学附属北京同仁医院北京同仁眼科中心北京市眼科学与视觉科学重点实验室 100730 郑州市第二人民医院眼科解放军总医院海南分院眼科

青光眼是以绝对性或相对性眼压增高而致视网膜神经节细胞（RGC）进行性凋亡为特征的视神经退行性病变。减缓或防止RGC凋亡是防治青光眼视神经病变的重点。绿茶提取物表没食子儿茶素-3．没食子酸酯（EGCG）是一种具有多种生物学功效的强... 详细信息

青光眼是以绝对性或相对性眼压增高而致视网膜神经节细胞（RGC）进行性凋亡为特征的视神经退行性病变。减缓或防止RGC凋亡是防治青光眼视神经病变的重点。绿茶提取物表没食子儿茶素-3．没食子酸酯（EGCG）是一种具有多种生物学功效的强抗氧化剂，通过抗氧化．自由基清除、抗炎以及扩张血管而可能发挥神经保护作用件。

关键词：视神经损伤/药物疗法没食子酸/治疗应用视网膜神经节细胞动物实验

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关注黄斑区肥厚型脉络膜疾病谱的概念及研究

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中华实验眼科杂志 2017年第5期35卷 385-390页

作者：张新媛赖旭佑首都医科大学附属北京同仁医院北京同仁眼科中心北京市眼科研究所北京100730 香港中文大学眼科及视觉科学学系包素菊黄斑病变治疗及研究中心香港九龙尖沙嘴2010视网膜及黄斑中心 100730

肥厚型脉络膜疾病谱是近年来随着眼科诊疗技术的进步而提出的新概念。眼底影像学诊断技术的巨大进步，特别是扫频源OCT在扫描速度、深度、扫描模式以及扫描软件方面的突破，克服了以往眼底成像技术的局限性，使得深达脉络膜，甚至巩膜... 详细信息

肥厚型脉络膜疾病谱是近年来随着眼科诊疗技术的进步而提出的新概念。眼底影像学诊断技术的巨大进步，特别是扫频源OCT在扫描速度、深度、扫描模式以及扫描软件方面的突破，克服了以往眼底成像技术的局限性，使得深达脉络膜，甚至巩膜的结构得以清晰成像，为视网膜脉络膜疾病的诊断、分型及发病机制研究提供了有用信息和依据。近年来正是基于OCT对脉络膜越来越精细的成像特点提出了肥厚型脉络膜疾病谱的概念，国外学者将与慢性持续性脉络膜增厚相关的具有临床表型及发病机制相似的黄斑疾病进行归类并加以病名，为该类疾病的临床诊疗及临床研究提供了新的方向。眼科医师应该关注这些新的进展和相关的研究工作。本文就其概念、发病机制、临床表型做一简要评述。

关键词：肥厚型脉络膜疾病谱扫频源OCT 发病机制影像学眼底成像技术

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Ren-integrable and ren-symmetric integrable systems

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Communications in Theoretical Physics 2024年第3期76卷 62-69页

作者： S y Lou School of Physical Science and Technology Ningbo UniversityNingbo315211China

A new type of symmetry,ren-symmetry,describing anyon physics and corresponding topological physics,is ***-symmetry is a generalization of super-symmetry which is widely applied in super-symmetric physics such as super-symmetric quantum mechanics,super-symmetric gravity,super-symmetric string theory,super-symmetric integrable systems and so *** and Grassmann numbers are,in some sense,dual conceptions,and it turns out that these conceptions coincide for the ren situation,that is,a similar conception of ren-number(R-number)is devised for *** particular,some basic results of the R-number and ren-symmetry are exposed which allow one to derive,in principle,some new types of integrable systems including ren-integrable models and ren-symmetric integrable *** examples of ren-integrable KdV-type systems and ren-symmetric KdV equations are explicitly given.

关键词： symmetries integrable systems anyon physics extended supersymmetry ren-symmetry

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Distinct Electrical and Mechanical Responses of a Cu-10Fe Composite Prepared by Hot-Pressed Sintering and Post Treatment

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Acta Metallurgica Sinica(English Letters) 2024年第2期37卷 255-265页

作者： X.y.yue S.y.Peng X.Zhang C.N.He y.Z.Tian Key Laboratory for Anisotropy and Texture of Materials(Ministry of Education) School of Materials Science and EngineeringNortheastern UniversityShenyang110819China School of Materials Science and Engineering and Tianjin Key Laboratory of Composite and Functional Materials Tianjin UniversityTianjin300350China Research Centre for Metallic Wires Northeastern UniversityShenyang110819China

A Cu-10wt%Fe composite was prepared through hot-pressed sintering,and the material was subsequently solution *** hot-pressed sintered and solution treated materials were rolled and *** precipitation behavior and performance changes were systematically studied by using scanning electron microscopy and transmission electron *** contrast to the hot-pressed sintered specimen,the solution treatment significantly affects the thermal stability and properties of the Cu-10wt%Fe *** Cu-10wt%Fe composite was prepared after solid solution,cold rolling and aging at 773 K for 1 h,and it obtained excellent tensile strength of 494 MPa,uniform elongation of 16.3%,electrical conductivity of 51.1%IACS and softening temperature of 838 *** for the distinct difference in thermal stability and properties between hot-pressed sintered and solution treated specimens were *** findings provide a theoretical basis for designing high-performance Cu-based in-situ composites by post treatment.

关键词： Cu-Fe composite Hot-pressed sintering Thermal stability Strength Electrical conductivity

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Recent innovations in laser additive manufacturing of titanium alloys

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International Journal of Extreme Manufacturing 2024年第3期6卷 2-37页

作者： Jinlong Su Fulin Jiang Jie Teng Lequn Chen Ming yan Guillermo Requena lai-Chang Zhang y Morris Wang Ilya V Okulov Hongmei Zhu Chaolin Tan College of Materials Science and Engineering Hunan UniversityChangsha 410082People’s Republic of China Singapore Institute of Manufacturing Technology(SIM Tech) Agency for ScienceTechnology and Research(A∗STAR)5 Cleantech LoopSingapore 636732Singapore Department of Materials Science and Engineering Southern University of Science and TechnologyShenzhen 518055People’s Republic of China Institute of Materials Research German Aerospace Center(DLR)Linder Höhe51147 CologneGermany Centre for Advanced Materials and Manufacturing Edith Cowan University270 Joondalup DriveJoondalupPerthWestern Australia 6027Australia Department of Materials Science and Engineering University of CaliforniaLos AngelesCA 900095United States of America Leibniz Institute for Materials Engineering-IWT Badgasteiner Str.328359 BremenGermany Faculty of Production Engineering University of BremenBadgasteiner Str.128359 BremenGermany Key Laboratory of Hunan Province of Equipment Safety Service Technology under Extreme Environment University of South ChinaHengyangPeople’s Republic of China RWTH Aachen University Metallic Structures and Materials Systems for Aerospace EngineeringD-52062 AachenGermany

Titanium(Ti)alloys are widely used in high-tech fields like aerospace and biomedical *** additive manufacturing(LAM),as an innovative technology,is the key driver for the development of Ti *** the significant advancements in LAM of Ti alloys,there remain challenges that need further research and development *** recap the potential of LAM high-performance Ti alloy,this article systematically reviews LAM Ti alloys with up-to-date information on process,materials,and *** feasible solutions to advance LAM Ti alloys are reviewed,including intelligent process parameters optimization,LAM process innovation with auxiliary fields and novel Ti alloys customization for *** auxiliary energy fields(***,acoustic,mechanical deformation and magnetic fields)can affect the melt pool dynamics and solidification behaviour during LAM of Ti alloys,altering microstructures and mechanical *** kinds of novel Ti alloys customized for LAM,like peritecticα-Ti,eutectoid(α+β)-Ti,hybrid(α+β)-Ti,isomorphousβ-Ti and eutecticβ-Ti alloys are reviewed in ***,machine learning in accelerating the LAM process optimization and new materials development is also *** review summarizes the material properties and performance envelops and benchmarks the research achievements in LAM of Ti *** addition,the perspectives and further trends in LAM of Ti alloys are also highlighted.

关键词： additive manufacturing titanium alloys auxiliary field machine learning aerospace materials lightweight materials novel alloys

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采用或不用内界膜剥除的黄斑裂孔手术(英文)

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国际眼科杂志 2004年第1期4卷 33-38页

作者： Alvin K.H.Kwok timothy y.y.lai 中国香港眼科医院眼科

目的:在用或不用吲哚氰绿内界膜染色剥膜的情况下,比较特发性黄斑裂孔术后的解剖及视力结果。方法:对连续采用单纯注气术进行眼内填充的40眼特发性黄斑裂孔进行回顾性分析,所有手术均由一位医生完成。所有的患眼术后至少经过了6月的随访... 详细信息

目的:在用或不用吲哚氰绿内界膜染色剥膜的情况下,比较特发性黄斑裂孔术后的解剖及视力结果。方法:对连续采用单纯注气术进行眼内填充的40眼特发性黄斑裂孔进行回顾性分析,所有手术均由一位医生完成。所有的患眼术后至少经过了6月的随访。40眼中的前22眼采用保留内界膜手术(非内界膜剥除组),后18眼采用吲哚氰绿对内界膜染色并进行内界膜剥除手术(内界膜剥除组)。结果:内界膜剥除组和非内界膜剥除组特发性黄斑裂孔解剖复位率分别为88.9%和59.1%,统计结果有显著性差异(Fisher’检验,P =0.038)。内界膜剥除组视力提高较非内界膜剥除组更为明显,平均分别提高了3.46和1.3行(t检验,P =0.0356)。多数病例术后视力提高2行或更多,在内界膜剥除组为66.7%,非内界膜剥除组为31.8%(χ2检验,P = 0.028)。然而在2组之间最终的术后logMAR BC-VA没有明显的差异(t检验,P =0.0073)。结论:根据以上研究,通过吲哚氰绿内界膜染色剥除内界膜可促进特发性黄斑裂孔解剖复位及视力的提高。在此方面进一步的研究是必要的。

关键词：内界膜剥除术黄斑裂孔手术吲哚氰绿眼科

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Construction of 2D/2D Ti_(3)C_(2)T_(x)MXene/CdS heterojunction with photothermal effect for efficient photocatalytic hydrogen production

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Journal of Materials Science & Technology 2024年第4期171卷 1-9页

作者： T.y.Huang Z.yang S.y.yang Z.H.Dai y.J.Liu J.H.Liao G.y.Zhong Z.J.Xie y.P.Fang S.S.Zhang Key Laboratory for Biobased Materials and Energy of Ministry of Education Guangdong Laboratory for Lingnan Modern AgricultureCollege of Materials and EnergySouth China Agricultural UniversityGuangzhou 510643China School of Physics and Optoelectronics South China University of TechnologyGuangzhou 510640China School of Chemical Engineering and Energy Technology Guangdong Provincial Key Laboratory of Distributed Energy SystemsDongguan University of TechnologyDongguan 523808China

The insensitivity of semiconductors to visible and infrared light is a key constraint on the utilization of light energy in photocatalytic *** photocatalysts with full-spectrum absorption through surface engineering is an effective approach to fully harnessing light energy in semiconductor ***,a novel stable Ti_(3)C_(2)T_(x)MXene/CdS heterojunction catalyst is obtained by in-situ epitaxial growth of two-dimensional(2D)CdS nanosheets on 2D MXene interface via a solvothermal *** exceptional light absorption properties of MXene confer outstanding full-spectrum driven photocat-alytic hydrogen evolution capability upon the heterogeneous *** unique 2D/2D structure effectively mitigated the recombination of photogenerated carriers,enhancing the photocatalytic performance of the ***,the composite catalyst exhibits a significantly higher surface temperature of 80.4℃under visible light irradiation at an intensity of 0.1 W/cm^(2),which is 1.84 times higher than that of *** irradiation of visible and near infrared light,the composite catalyst with photothermal ef-fect demonstrates a remarkable hydrogen evolution rate of 65.4 mmol g^(-1)h^(-1),which is 7.2 times higher than that of CdS *** study introduces a novel approach for constructing full-spectrum absorption catalysts and expands the application of the photothermal effect in photocatalytic hydrogen evolution research.

关键词： Two-dimensional structure Heterostructure Photothermal effect Photocatalyst Hydrogen evolution

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A perspective on age-related changes in cell environment and risk of neurodegenerative diseases

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Neural Regeneration Research 2024年第4期19卷 719-720页

作者： Alice y.Liu Department of Cell Biology and Neuroscience Rutgers State University of New JerseyPiscatawayNJUSA

“Age-related neurodegenerative disease”underscores human age as the primary risk factor for disease development:Alzheimer’s,Parkinson’s,and Huntington’s disease(HD)as *** for the age-dependent delay in disease manifestation,in particular for autosomal dominant forms of the disease,and the underlying cause(s)of specific neuron dysfunction and death to manifest as memory loss,anxiety,depression,and agitation in disease subjects remain *** are interested in understanding age-related changes in cell environment that can modulate the structure,function,aggregation.

关键词： Huntington Alzheimer death

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