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Expression levels of ROS and Atg proteins in the vitreous in rhegmatogenous retinal detachment

International Journal of Ophthalmology(English edition) 2023年第3期16卷 348-353页

作者： Nan Huang Xue-Yan Gao Jin-ping Li Xing lu Hua-mei Zhu Kai Dong Department of Ophthalmology Xiaoxian People’s HospitalSuzhou 234000Anhui ProvinceChina Graduate School of Bengbu Medical College Bengbu233000Anhui ProvinceChina Department of Ophthalmology Eye Centerthe First AffiliatedHospital of USTCDivision of Life Sciences and MedicineUniversity of Science and Technology of ChinaHefei 230001Anhui ProvinceChina Graduate School of Anhui Medical University Hefei 230001Anhui ProvinceChina Hefei Aier Eye Hospital Hefei 230001Anhui ProvinceChina

AIM:To detect the concentrations of reactive oxygen species(ROS),transient receptor potential mucin-1(TRPML1),and autophagy-related(Atg)proteins(LC3-Ⅰ,LC3-Ⅱ,and Beclin1)in vitreous humor of patients with simple rhegmatogenous retinal detachment(RRD).METHODS:RRD patients enrolled as the RRD group,and patients with idiopathic macular hole(IMH)and idiopathic macular epiretinal membrane(IMEM)were enrolled as control *** levels of ROS,TRPML1,LC3-Ⅰ,LC3-Ⅱ,and Beclin1 in vitreous humor of patients in the RRD and control groups were detected by enzyme-linked immunosorbent assay(ELISA).RESULTS:The RRD group included 28 eyes 28 patients and had a higher concentration of ROS in vitreous humor(631.86±18.05 vs 436.34±108.22 IU/m L,P<0.05).The ROS level in patients with a wide retinal detachment(RD)extent(RD range≥1/2)was higher than that with a narrow RD extent(RD range<1/2,P<0.05).ROS concentration was negatively correlated with RD time(r=-0.46,P=0.01).The expression levels of LC3-Ⅰand Beclin1 significantly decreased in RRD(P<0.05),but there were no correlations with the RD time,RD extent,or macular ***:In eyes with RRD,the concentration of ROS in vitreous humor increases and the expression levels of Atg proteins decrease,reflecting possibly that autophagy is inhibited.

关键词： autophagy-related proteins reactive oxygen species vitreous body retinal detachment

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Boundedness of Multilinear Caldern–Zygmund Singular Operators on Morrey–Herz Spaces with Variable Exponents

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Acta Mathematica Sinica,English Series 2014年第7期30卷 1180-1194页

作者： Yan lu Yue ping ZHU School of Xinglin Nantong University School of Science Nantong University

In this paper, we introduce Morrey-Herz spaces MKq.p（·）α（·）,λ with variable exponents α（·） and p（·）, and prove the boundedness of multilinear Calderdn-Zygmund singular operators on the product of these... 详细信息

关键词： Morrey-Herz spaces variable exponents multilinear Calder6n-Zygmund singular operators

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Two-photon Absorption and Optical Power Limiting Properties of Two Novel Dibenzothiophene-based Chromophores

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Chinese Chemical Letters 2006年第9期17卷 1263-1266页

作者： Jian Wei CHENG Xiao mei WANG Jin XU Chang Gui lu Yi ping CUI Bo LI Shi Xiong QIAN ping YANG Material Engineering Institute Chemical Department of Suzhou University Suzhou 215021 Department of Electronic Engineering Southeast University Nanjing 210096 Laboratory of Advanced Materials Fudan University Shanghai 200433

Two novel V-shaped symmetric chromophores： E-2,8-bis（4-vinyl-4-carbazol-9-yl）diben- zothiophene （abbreviated as SK-G1） and E-2,8-bis（4-vinyl-4-triphenylamino） dibenzothiophene （abbreviated as ST-G1） have been synthesized and characterized. Their two photon absorption properties were measured by the open-aperture femtosecond Z-scan technique and the nanosecond nonlinear optical transmission （NLT）, respectively, when pumped by Ti： sapphire laser at 750 nm and 800 nm.

关键词： E-2,8-Bis(4-vinyl-4-carbazol-9-yl)dibenzothiophene E-2,8-bis(4-vinyl-4-triphenyl- amino)dibenzothiophene two-photon absorption optical limiting.

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Confined nanospace pyrolysis: A versatile strategy to create hollow structured porous carbons

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Nano Research 2021年第9期14卷 3159-3173页

作者： Rui-ping Zhang Wen-Cui Li Guang-ping Hao An-Hui lu State Key Laboratory of Fine Chemicals School of Chemical EngineeringDalian University of TechnologyDalian 116024China

Confined nanospace pyrolysis(CNP)has attracted increasing attention as a general strategy to prepare task-specific hollow structured porous carbons(HSPCs)in the past *** unique advantages of the CNP strategy include its outstanding ability in control of the monodispersity,porosity and internal cavity of *** a consequence,the obtained HSPCs perform exceptionally well in applications where a high dispersibility and tailored cavity are particularly required,such as drug delivery,energy storage,catalysis and so *** this review,the fundamentals of the CNP strategy and its advances in structural alternation is first summarized,then typical applications are discussed by exemplifying specific synthesis *** addition,this review offers insights into future developments for advanced task-specific hollow structured porous materials prepared by the CNP strategy.

关键词： confined nanospace pyrolysis hollow structures carbon materials core-shell structures dispersibility

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Activity of Stress-related Antioxidative Enzymes in the Invasive Plant Crofton Weed(Eupatorium adenophorum)

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Journal of Integrative Plant Biology 2007年第11期49卷 1555-1564页

作者： ping lu Wei-Guo Sang Ke-ping Ma Key Laboratory of Vegetation Ecology and Environment Change Institute of Botany the Chinese Academy of Sciences Beijing 100093 China Resources and Environmental Sciences College Northeast Agrfcultural University Harbin 150030 China

Crofton weed is an invasive weed in southwestern China. The activities of several antioxidative enzymes involved in plant protection against oxidative stress were assayed to determine physiological aspects of the crofton weed that might render the plant vulnerable to environmental stress. Stresses imposed on crofton weed were heat （progressively increasing temperatures： 25 ℃, 30 ℃, 35 ℃, 38℃ and 42 ℃ at 24 h intervals）, cold （progressively decreasing temperatures： 25 ℃, 20 ℃, 15℃, 10 ℃ and 5℃ at 24h intervals）, and drought （without watering up to 4days）. The three stresses induced oxidative damage as evidenced by an increase in lipid peroxidation. The effect varied with the stress imposed and the length of exposure. The activity of superoxide dismutase （SOD） increased in response to all stresses but was not significantly different from the controls （P 〈 0.05） when exposed to cold stress. Catalase （CAT） activity decreased in response to heat and drought stress but increased when exposed to cold conditions. Guaiacol peroxidase （POD） and glutathione reductase （GR） activities increased in response to cold and drought but decreased in response to heat stress. The activity of ascorbata peroxidase （APX） responded differently to all three stresses. Monodehydroascorbate reductase （MDHAR） activity decreased in response to heat and drought, and slightly increased in response to the cold stress but was not significantly different from the controls （P 〈 0.05）. The activity of dehydroascorbata reductase （DHAR） increased in response to all three stresses. Taken together, the co-ordinate increase of the oxygen-detoxifying enzymes might be more effective to protect crofton weed from the accumulation of oxygen radicals at low temperatures rather than at high temperatures.

关键词： antioxidative enzymes crofton weed invasive plant stress.

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Nitrogen removal from sludge dewatering effluent through anaerobic ammonia oxidation process

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Journal of Environmental Sciences 2005年第6期17卷 1030-1033页

作者： ZHANG Shao-hui ZHENG ping HUA Yu-mei Department of Environmental Engineering Zhejiang University Hangzhou 310029 China

Anaerobic ammonia oxidation（Anammox） process is a novel and promising wastewater nitrogen removal process. The feasibility of transition of Anammox from denitrification and the performance of lab-scale Anammox biofilm reactor were investigated with sludge dewatering effluent. The results showed that Anammox process could be successfully started up after cultivation of denitrification biofilm and using it as inoculum. The transition of Anammox from denitrification was accomplished within 85 d. Anammox process was found suitable to remove ammonia from sludge dewatering effluent. The effluent ammonia concentration was detected to be 23.11 mgN/L at HRT of 28 h when influent ammonia concentration was fed 245 mgN/L, which was less than that for the national discharge standard Ⅱ （25 rngN/L） of China. Volumetric total nitrogen loading rate was up to 584.99 mg TN/（L. d） at HRT of 17 h, while influent concentrations were kept 243.25 mg NH4＊ -N/L and 288.31 mg NO2^- -N/L.

关键词： denitrification Anammox sludge dewatering effluent nitrogen removal

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Differential Responses of the Activities of Antioxidant Enzymes to Thermal Stresses between Two Invasive Eupatorium Species in China

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Journal of Integrative Plant Biology 2008年第4期50卷 393-401页

作者： ping lu Wei-Guo Sang Ke-ping Ma Key Laboratory of Vegetation and Environment Change Institute of Botany the Chinese Academy of Sciences Beijing 100093 China Resources and Environmental Sciences College Northeast Agricuitural University Harbin 150030 China

The effect of thermal stress on the antioxidant system was investigated in two invasive plants, Eupatorium adenophorum Spreng. and E. odoratum L. The former is sensitive to high temperature, whereas the latter is sensitive to low temperature. Our aim was to explore the relationship between the response of antioxidant enzymes and temperature in the two invasive weeds with different distribution patterns in China. Plants were transferred from glasshouse to growth chambers at a constant 25 ℃for I week to acclimatize to the environment. For the heat treatments, temperature was increased stepwise to 30, 35, 38 and finally to 42 ℃. For the cold treatments, temperature was decreased stepwise to 20, 15, 10 and finally to 5 ℃. Plants were kept in the growth chambers for 24 h at each temperature step. In E. adenophorum, the coordinated increase of the activities of antioxidant enzymes was effective in protecting the plant from the accumulation of active oxygen species （AOS） at low temperature, but the activities of catalase （CAT）, guaiacol peroxidase （POD）, ascorbate peroxidase （APX）, glutathione reductase （GR）, and monodehydroascorbate reductase （MDAR） were not accompanied by the increase of superoxide dismutase （SOD） during the heat treatments. As a result, the level of lipid peroxidation in E. adenophorum was higher under heat stress than under cold stress. In E. odoratum, however, the lesser degree of membrane damage, as indicated by low monodehydroascorbate content, and the coordinated increase of the oxygen. Datoxifying enzymes were observed in heat-treated plants, but the antioxidant enzymes were unable to operate in cold stress. This indicates that the plants have a higher capacity for scavenging oxygen radicals in heat stress than in cold stress. The different responses of antioxidant enzymes may be one of the possible mechanisms of the differences in temperature sensitivities of the two plant species.

关键词： antioxidant enzyme system cold stress Eupatorium adenophorum Eupatorium odoratum heat stress invasive plants.

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m, argest adjacency, signless Laplacian, and Laplacian H-eigenvalues of loose paths

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Frontiers of Mathematics in China 2016年第3期11卷 623-645页

作者： Junjie YUE Liping ZHANG mei lu Department of Mathematical Sciences Tsinghua University Beijing 100084 China State Key Laboratory of Space Weather Chinese Academy of Sciences Beijing 100910 China

We investigate k-uniform loose paths. We show that the largest H- eigenvalues of their adjacency tensors, Laplacian tensors, and signless Laplacian tensors are computable. For a k-uniform loose path with length l≥ 3, we show that the largest H-eigenvalue of its adjacency tensor is （（1 ＋ √-5）/2）2/k when = 3 and ）λ（A） = 31/k when g = 4, respectively. For the case of l ≥ 5, we tighten the existing upper bound 2. We also show that the largest H-eigenvalue of its signless Laplacian tensor lies in the interval （2, 3） when l≥ 5. Finally, we investigate the largest H-eigenvalue of its Laplacian tensor when k is even and we tighten the upper bound 4.

关键词： H-eigenvalue hypergraph adjacency tensor signless Laplaciantensor Laplacian tensor loose path

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Self-assembled all-oxides three-phase vertically aligned nanocomposite thin film with multifunctionality

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Nano Research 2024年第9期17卷 8226-8232页

作者： Jijie Huang Yuan Fang ping lu Juanjuan lu Haiyan Wang School of Materials Shenzhen Campus of Sun Yat-sen UniversityShenzhen 518107China School of Materials Engineering Purdue UniversityWest LafayetteIN 47907USA Sandia National Laboratories AlbuquerqueNew Mexico 87185USA School of Electrical and Computer Engineering Purdue UniversityWest LafayetteIN 47907USA

Multi-phase vertically aligned nanocomposite(MP-VAN)thin films represent a promising avenue for achieving complex multifunctionality,exploring novel interfacial phenomena,and enabling complex metamaterial designs and *** this study,a novel self-assembled all-oxides three-phase VAN system was conceptualized and fabricated utilizing pulsed laser deposition(PLD)with a single composite *** microstructural analysis reveals the presence of three distinct phases:LiNbO_(3),CeO_(2-x),and LiNbCe_(1-x)O_(y)within the MP-VAN ***,ferroelectric,dielectric,optical anisotropy,and magnetic properties were systematically investigated to showcase the multifunctionality inherent in these *** work presents a pioneering approach to designing and realizing MP-VAN systems,and opens up opportunities for tailoring the complex three-dimensional(3D)physical properties and property coupling of VAN films towards diverse device applications.

关键词： thin film three-phase vertically aligned nanocomposite multifunctionality ferroelectricity optical anisotropy

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Effects of pesticides on soil biochemical characteristics of a paddy soil

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Journal of Environmental Sciences 2004年第2期16卷 252-255页

作者： XIEXiao-mei LIAOMin HUANGChang-yong LIUWei-ping ABIDSubhani CollegeofEnvironmentalandResourceSciences DepartmentofResourcesScienceZhejiangUniversityHangzhou310029China. CollegeofEnvironmentalandResourceSciences DepartmentofEnvironmentalScienceZhejiangUniversityHangzhou310029China

The impact of triazophos, bensulfuron-methyl, chlobenthiazone on soil biochemical characteristics in a paddy soil under controlled moisture(flooded soil) and temperature(25℃) condition was studied. The electron transport system(ETS)/dehydrogenase activity displayed a negative correlation with triazophos, bensulfuron-methyl, chlobenthiazone concentrations, and the activity decreased as the concentration of the pesticides increased. The higher doses, 5 and 10 field rates, of triazophos, bensulfuron-methyl, chlobenthiazone significantly inhibited ETS activity, while lower rates failed to produce any significant reducing effect against the control. The relative toxicity of triazophos, bensulfuron-methyl, chlobenthiazone in decreasing the ETS activity was in the order: triazophos > chlobenthiazone > bensulfuron-methyl, irrespective of the rates of application. Triazophos, bensulfuron-methyl, chlobenthiazone caused an improvement in the soil phenol content and it increased with increasing concentration of triazophos, bensulfuron-methyl, chlobenthiazone. Triazophos, bensulfuron-methyl, chlobenthiazone incorporation did not produce any significant change in soil protein content. The response of biomass phospholipid content was nearly similar to ETS activity. The phospholipid content was decreased with the addition of triazophos, bensulfuron-methyl, chlobenthiazone in the order of triazophos > chlobenthiazone > bensulfuron-methyl; and the toxicity of applied amount was in the order: 10 FR(field rate) > 5 FR > 1 0 FR > 0 5 FR > control.

关键词： triazophos chlobenthiazone bensulfuron-methyl soil biochemical characteristic

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