检索结果-南通市图书馆

Endoscopy-assisted vitrectomy in the anterior vitreous

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

International Journal of Ophthalmology(English edition) 2018年第3期11卷 506-511页

作者： Yong-Zhen Yu Yu-Ping zou xiu-lan zou Department of Ophthalmology Guangzhou General Hospital of Guangzhou Military Command of PLA

Endoscopy-assisted ocular surgery is a relatively old technique that is increasingly being recognized for its application in cases of vitreoretinal disease. This technique is especially useful when both the vitreous and retina are difficult to access because of media opacity, a small pupil, or a microcornea. In this context, the anterior vitreous is often difficult to dissect because of its complex pathological changes. This article reviews the common anatomical features and pathologies that are observed in the anterior vitreous, as well as the applications and indications of endoscopy-assisted vitrectomy in the anterior vitreous.

关键词： intraocular endoscope anterior vitreous endoscopy-assisted vitrectomy

Chronic hypotony management using endoscopy-assisted vitrectomy after severe ocular trauma or vitrectomy

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

International Journal of Ophthalmology(English edition) 2023年第6期16卷 947-954页

作者： Yong-Zhen Yu xiu-lan zou Xuan-Ge Chen Chu Zhang Yang-Yang Yu Meng-Yi Zhang Yu-Ping zou Department of Ophthalmology General Hospital of Southern Theater CommandGuangzhou 510010Guangdong ProvinceChina Guangzhou University of Traditional Chinese Medicine Guangzhou 510405Guangdong ProvinceChina Department of Ophthalmology the Second People’s Hospital of FoshanFoshan 528000Guangdong ProvinceChina The First School of Clinical Medicine Southern Medical UniversityGuangzhou 510515Guangdong ProvinceChina

·AIM: To report outcomes of endoscopy-assisted vitrectomy(EAV) in patients with chronic hypotony following severe ocular trauma or vitrectomy.·METHODS: This was a retrospective, noncomparative case series. Ciliary bodies were evaluated using ultrasound biomicroscopy pre-operatively and direct visualisation intraoperatively. All selected individuals(seven patients/seven eyes) underwent EAV. Removal of ciliary membrane and traction, gas/silicone oil tamponade(GT/SOT), and scleral buckling(SB) were performed in selected eyes. Outcome measurements mainly included intraocular pressure(IOP) and best-corrected visual acuity(BCVA).·RESULTS: Seven eyes from 7 male aphakic patients with a mean age of 45(range, 20-68)y were included in this study;the average follow-up time was 12(9-15)mo. GT was performed in 2 eyes;membrane peeling(MP) and SOT in 2 eyes;and MP, SOT, and SB in 3 eyes. The mean preand post-operative IOP were 4.5(range, 4.0±0.11 to 4.8±0.2) mm Hg and 9.9(range, 5.6±0.17 to 12.1±0.2) mm Hg at 52wk(12mo), respectively. BCVA improved in six eyes;one eye still showed light perception, and no bulbi phthisis was observed.·CONCLUSION: Endoscopy offers improved judgment and recognition and has an improved prognosis for chronic hypotony. Therefore, endoscopy can be an effective and promising operative technique for chronic traumatic hypotony management.

关键词： endoscopy-assisted vitrectomy chronic hypotony anterior proliferative vitreoretinopathy anterior vitreous segment trauma

Endoscopy-assisted vitrectomy for severe ocular penetrating trauma with corneal opacity

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

International Journal of Ophthalmology(English edition) 2024年第12期17卷 2256-2264页

作者： Yong-Zhen Yu Liu-Lian Jian Wen-Xiao Chen Liang-Hong Peng Yu-Ping zou Long Pang xiu-lan zou Department of Ophthalmology General Hospital of Southern Theatre CommandGuangzhou 510010Guangdong ProvinceChina University of Traditional Chinese Medicine Guangzhou 510405Guangdong ProvinceChina Naval Medical University Shanghai 200433China Department of Ophthalmology Guangdong Provincial Hospital of Traditional Chinese MedicineGuangzhou 510120Guangdong ProvinceChina

AIM:To assess the utility and efficiency of endoscopyassisted vitrectomy(EAV)for the treatment of corneal opacity in severe ocular ***:Patients who underwent fundus examination using a preoperative slit lamp and intraoperative endoscopy,followed by EAV and additional surgery were retrospectively *** oil removal and penetrating keratoplasty were used in selected eyes at postoperative *** measurements included the best corrected visual acuity(BCVA),intraocular pressure(IOP),findings of endoscopic fundus examination,and postoperative ***:Twenty-one eyes with severe ocular trauma and corneal opacity were followed up for *** detachment(RD)and vitreous haemorrhage(VH)were identified in 16 eyes(76.2%),RD only in four eyes(19.0%),and VH combined with intraocular foreign body in one eye(4.8%).All eyes underwent at least three ***-Ⅰ surgeries involved wound closure(100%),lens extraction(76.2%),and anterior vitrectomy(14.3%).Stage-Ⅱ surgeries involved scleral buckling(28.6%),membrane peeling(47.6%),retinal laser photocoagulation(100%)and silicone oil tamponade(100%)using ***-Ⅲ surgeries were conducted using endoscopy including silicone oil removal(52.4%),retinal laser photocoagulation(52.4%)and penetrating keratoplasty(28.6%).Nearly all eyes showed improvements in BCVA and *** there were no severe complications,glaucoma was noted in one eye,chronic hypotony in another eye,and band keratopathy in three ***:EAV is an effective adjunct for restoring ocular anatomical structures and visual function in the case of corneal opacity after severe ocular trauma.

关键词： corneal opacity endoscopy-assisted vitrectomy penetrating keratoplasty severe ocular trauma retinal detachment

Protection of tight junction between RPE cells with tissue factor targeting peptide

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

International Journal of Ophthalmology(English edition) 2018年第10期11卷 1594-1599页

作者： xiu-lan zou Guan-Feng Wang Dan-Dan Li Jing-Xia Chen Chun-Li Zhang Yong-Zhen Yu Wen-Jie Zhou Yu-Ping zou Ben-Qiang Rao Department of Ophthalmology General Hospital of Guangzhou of PLA Guangzhou 510010 Guangdong Province China Department of Ophthalmology the Third Affiliated Hospital of Guangzhou Medical University Guangzhou 510150Guangdong Province China Zhongshan Ophthalmology Center of Sun Yat-sen University Guangzhou 510060 Guangdong Province China General Surgery Aviation General Hospital Beijing 100012China

AIM：To investigate the effect of tissue factor targeting peptide（TF-TP）on retinal pigment epithelium（RPE）cells tight ***：Cell counting kit-8（CCK-8）was used to measure the proliferation of ARPE-19 *** of tight junction,ZO-1 in ARPE-19 cells was measured by Western blot and immunofluorescent *** blot was also used to detect the expression of tissue factor（TF）.CEC Transmigration Assay was used to measure the migration of ARPE-19 *** transport of fluorescent markers [fluorescein isothiocyanate dextrans of 4,10,20（FD4,FD10,FD20） ]and the transepithelial electrical resistance（TEER）were used to measure in ARPE-19 cell RESULTS：CCK-8 assay showed that 5μmol/L TF-TP can inhibit ARPE-19 cells abnormally proliferation stimulated by lipopolysaccharide（LPS;P〈0.05）.LPS increased the transport of fluorescent markers（FD4,FD10,FD20）and decreased TEER levels in ARPE-19 cells,respectively,which were prevented by 5μmol/L TF-TP pretreatment（P〈0.05）. Furthermore,LPS significantly up-regulated the expression of TF and downregulated the expression of ZO-1（P〈0.05）in ARPE-19 cell which was inhibited by the TF-TP（P〈0.05）.In addition,TF-TP inhibited the abnormal migration induced by LPS in ARPE-19 cell（P〈0.05）.CONCLUSION：Our findings suggest that TF-TP suppressed proliferation and migration of ARPE-19 cells induced by LPS,and maintained the RPE tight junctions through inhibition of TF expression and increased expression of ZO-1.

关键词： tissue factor targeting peptide lipopolysaccharide tight junction ZO-1 retinal pigment epithelium

Protective effects of lipoic acid-niacin dimers against blue light-induced oxidative damage to retinal pigment epithelium cells

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

International Journal of Ophthalmology(English edition) 2019年第8期12卷 1262-1271页

作者： xiu-lan zou Yong-Zhen Yu Hong-Hua Yu Guan-Feng Wang Rong-Biao Pi Zhe Xu Chu Zhang Wen-Jie Zhou Dan-Dan Li Xuan-Ge Chen Yu-Ping zou Department of Ophthalmology General Hospital of SouthernTheatre Command of PLAGuangzhou510010GuangdongProvinceChina Department of Ophthalmology Guangdong ProvincialPeople’s HospitalGuangzhou510000Guangdong ProvinceChina Department of Ophthalmology Third Affiliated Hospitalof Guangzhou Medical UniversityGuangzhou510000Guangdong ProvinceChina School of Pharmaceutical Sciences Sun Yat-sen UniversityGuangzhou510000Guangdong ProvinceChina Department of Ophthalmology the First Affiliated HospitalGuangdong Pharmaceutical UniversityGuangzhou510000Guangdong ProvinceChina Zhongshan Ophthalmic Centre of Sun Yat-sen University Guangzhou510000Guangdong ProvinceChina

AIM: To evaluate the protective effects of lipoic acid-niacin(N2 L) dimers against blue light(BL)-induced oxidative damage to human retinal pigment epithelium(hRPE) cells in ***: h RPE cells were divided into a control group(CG), a BL group, an N2 L plus BL irradiation group, an α-lipoic acid(ALA) plus BL group, an ALA-only group, and an N2 L-only group. hRPE cellular viability was detected by performing 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium(MTT) bromide assays, and apoptosis was evaluated by annexin-V-PE/7-AAD staining followed by flow cytometry. Ultrastructural changes in subcellular organelles were observed by transmission electron microscopy. Reactive oxygen species formation was assayed by flow cytometry. The expression levels of the apoptosis-related proteins BCL-2 associated X protein(BAX), B-cell leukmia/lymphoma 2(BCL-2), and caspase-3 were quantified by Western blot ***: BL exposure with a light density of 4±0.5 mW/cm2 exceeding 6 h caused hRPE toxicity, whereas treatment with a high dose of N2 L(100 mol/L) or ALA(150 mol/L) maintained cell viability at control levels. BL exposure caused vacuole-like degeneration, mitochondrial swelling, and reduced microvillus formation;however, a high dose of N2 L or ALA maintained the ultrastructure of hRPE cells and their organelles. High doses of N2 L and ALA also protected hRPE cells from BL-induced apoptosis, which was confirmed by Western blot analysis: BCL-2 expression significantly increased, while BAX and caspase-3 expression slightly decreased compared to the ***: High-dose N2 L treatment(>100 mol/L) can reduce oxidative damage in degenerating hRPE cells exposed to BL with an efficacy similar to ALA.

关键词： lipoic acid-niacin dimers retinal pigment epithelium cell lipoic acid oxidative stress reactive oxygen species apoptosis

Integrated Equipment with Functions of Current Flow Control and Fault Isolation for Multiterminal DC Grids

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Energy Engineering 2025年第1期122卷 85-99页

作者： Shuo Zhang Guibin zou School of Electrical Engineering Shandong UniversityJinan250061China Suzhou Research Institute Shandong UniversitySuzhou215123China

The multi-terminal direct current(DC)grid has extinctive superiorities over the traditional alternating current system in integrating large-scale renewable *** the DC circuit breaker(DCCB)and the current flow controller(CFC)are demanded to ensure the multiterminal DC grid to operates reliably and ***,since the CFC and the DCCB are all based on fully controlled semiconductor switches(e.g.,insulated gate bipolar transistor,integrated gate commutated thyristor,etc.),their separation configuration in the multiterminal DC grid will lead to unaffordable implementation costs and conduction power *** solve these problems,integrated equipment with both current flow control and fault isolation abilities is proposed,which shares the expensive and duplicated components of CFCs and DCCBs among adjacent *** addition,the complicated coordination control of CFCs and DCCBs can be avoided by adopting the integrated equipment in themultiterminal DC *** order to examine the current flow control and fault isolation abilities of the integrated equipment,the simulation model of a specific meshed four-terminal DC grid is constructed in the PSCAD/EMTDC ***,the comparison between the integrated equipment and the separate solution is presented a specific result or conclusion needs to be added to the abstract.

关键词： Integrated equipment multiterminal direct current grid current flow control fault isolation

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

LASIK手术患者人格特征分析

国际眼科杂志 2014年第7期14卷 1364-1366页

作者：王泳彭亮红邹秀兰韩苏宁广州军区广州总医院眼科中国广东省广州市510010

目的:研究准分子激光原位角膜磨镶术(laser in situ keratomileusis,LASIK)患者人格特征,为屈光手术方式的选择提供心理学评估依据。方法:选择53例个体化LASIK手术患者(A组)、75例标准LASIK手术患者(B组)及71例屈光不正非手术患者(C组)... 详细信息

目的:研究准分子激光原位角膜磨镶术(laser in situ keratomileusis,LASIK)患者人格特征,为屈光手术方式的选择提供心理学评估依据。方法:选择53例个体化LASIK手术患者(A组)、75例标准LASIK手术患者(B组)及71例屈光不正非手术患者(C组),采用卡特尔16种个性因素测验(16PF),对三组患者进行个体测试并运用SPSS 11.0统计软件对数据进行单向方差分析。结果:与C组比较,A组患者持强性和紧张性因素的得分显著偏高,稳定性因素得分偏低,差异有统计学意义(P<0.05),而B组患者敢为性和实验性因素得分偏高,怀疑性因素得分偏低,差异显著(P<0.05)。A,B两组比较,持强性、敢为性和怀疑性因素得分有显著差异(P<0.05)。结论:LASIK手术患者具有特殊人格特征,固执己见,遇事多疑的患者更趋于选择个体化手术方式,手术前应采用适当心理评估。

关键词：准分子激光原位角膜磨镶术个体化切削人格心理评估卡特尔16种个性因素

Distance two Heegaard splittings, JSJ decompositions and ranks of 3-manifolds

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Science China Mathematics 2025年

作者： Wenjie Diao Yanqing zou School of Mathematical Sciences East China Normal University Shanghai Key Laboratory of Pure Mathematics and Mathematical Practice East China Normal University

For any pair of integers g and n with g ≥ 3 and 1 ≤ n ≤ g, we build a 3-manifold with a distance-2,genus-g Heegaard splitting so that(1) it contains n pairwise disjoint and nonisotopic essential tori;(2) after it is cut open along these tori, one resulting piece is hyperbolic while the others are small Seifert fibered spaces;(3) it provides a substantial result to the rank versus genus problem. These generalize a result in Qiu and zou(2019).

关键词：

Occluded Gait Emotion Recognition Based on Multi-Scale Suppression Graph Convolutional Network

同方期刊数据库评论

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

Computers, Materials & Continua 2025年第1期82卷 1255-1276页

作者： Yuxiang zou Ning He Jiwu Sun Xunrui Huang Wenhua Wang Beijing Key Laboratory of Information Service Engineering Beijing Union UniversityBeijing100101China College of Smart City Beijing Union UniversityBeijing100101China

In recent years,gait-based emotion recognition has been widely applied in the field of computer ***,existing gait emotion recognition methods typically rely on complete human skeleton data,and their accuracy significantly declines when the data is *** enhance the accuracy of gait emotion recognition under occlusion,this paper proposes a Multi-scale Suppression Graph ConvolutionalNetwork(MS-GCN).TheMS-GCN consists of three main components:Joint Interpolation Module(JI Moudle),Multi-scale Temporal Convolution Network(MS-TCN),and Suppression Graph Convolutional Network(SGCN).The JI Module completes the spatially occluded skeletal joints using the(K-Nearest Neighbors)KNN interpolation *** MS-TCN employs convolutional kernels of various sizes to comprehensively capture the emotional information embedded in the gait,compensating for the temporal occlusion of gait *** SGCN extracts more non-prominent human gait features by suppressing the extraction of key body part features,thereby reducing the negative impact of occlusion on emotion recognition *** proposed method is evaluated on two comprehensive datasets:Emotion-Gait,containing 4227 real gaits from sources like BML,ICT-Pollick,and ELMD,and 1000 synthetic gaits generated using STEP-Gen technology,and ELMB,consisting of 3924 gaits,with 1835 labeled with emotions such as“Happy,”“Sad,”“Angry,”and“Neutral.”On the standard datasets Emotion-Gait and ELMB,the proposed method achieved accuracies of 0.900 and 0.896,respectively,attaining performance comparable to other ***,on occlusion datasets,the proposedmethod significantly mitigates the performance degradation caused by occlusion compared to other methods,the accuracy is significantly higher than that of other methods.

关键词： KNN interpolation multi-scale temporal convolution suppression graph convolutional network gait emotion recognition human skeleton