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THE SIGNIFICANCE OF TESTING PREOPERATIVE VISUAL FUNCTION IN CATARACT USING LASER INTERFEROMETRIC VISUAL ACUITY AND ERG

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眼科学报 1991年第1期7卷 21-24页

作者： de-zheng {2. lezheng {2. Xijing Xu Hui chen Taiqing Luo zhongshan ophthalmic center sun yat-{12. University of medical sciences guangzhou 510060, china zhongshan ophthalmic {2. Sun Yat-sen University of Medical Sciences Guangzhou China.

Tests of preoperative visual function and prediction of postoperative E chart visual acuity(ECVA) using laser interferometric visual acuity(LIVA) and electroretinogram(ERG) were performed in 16 cases(19 eyes) of cataract. The results showed that the coincident rate between preoperative LIVA and postoperative ECVA was 63.2., and there was a parallel correlation between preoperative amplitude of photopic ERG b-wave and postoperative ECVA in 79.0% of the eyes. Comparing these two methods, the test of LIVA ...

关键词： THE SIGNIFICANCE OF TESTING PREOPERATIVE VISUAL FUNCTION IN CATARACT USING LASER INTERFEROMETRIC VISUAL ACUITY AND ERG

ABNORMALITIES OF ERG IN CONGENITAL ANIRIDIA

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眼科学报 1991年第3期7卷 151-152,119页

作者： lezheng wu Qiaoyun Ma Ybuzhao {2. de-zheng wu Taiqing Luo zhongshan ophthalmic center sun yat-sen University of medical sciences {12. 510060, china zhongshan ophthalmic {2. Sun Yat-sen University of Medical Sciences Guangzhou China.

Congenital aniridia is generally associated with nystagmus, corneal pannus, cataract, ectopia lentis, glaucoma, macular hypoplasia, optic nerve hypoplasia and compromised visual function. Many theories have been proposed, including a failure in the development of the neural ectoderm and/or an aberrant development of mesoderm. We observed the ERG from 19 patients with congenital aniridia. Fourteen patients had abnormal ERG, including the reduced a wave trough under dark adapted red stimuli with dark adap...

关键词： ERG ABNORMALITIES OF ERG IN CONGENITAL ANIRIDIA

VISUAL REHABILITATION IN LOW VISION PATIENTS WITH AGE-RELATED MACULAR deGENERATION

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眼科学报 1991年第3期7卷 143-145页

作者： de-zheng {2. Fu-Xiang Chang lezheng{2. chenjin jin zhongshan ophthalmic center sun {12.-sen University of medical sciences guangzhou 510060, china zhongshan ophthalmic {2. Sun Yat-sen University of Medical Sciences Guangzhou China.

Using optical visual aids, visual rehabilitation was performed in 14 low vision patients(2. eyes) with age-related macular degeneration. With distance aids, visual acuity improvement appeared in 2. eyes(95%) out of the 2. eyes. Twelve eyes(48%) obtained a visual acuity equal to or better than 0.4. With near visual aids, near acuity of all eyes(100%) was improved. Thirteen eyes(52.) got the near vision equal to or better than 0.5. Ten patients could read No.5 Chinese Reading Card. The reading success rat...

关键词： Vision Am VISUAL REHABILITATION IN LOW VISION PATIENTS WITH AGE-RELATED MACULAR deGENERATION AMD Card than

detection of Gene Alteration for Color Vision defects by Polymerase Chain Reaction

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眼科学报 1992年第1期8卷 8-11页

作者： Qingjiong Zhang, Wenshu Mao, Qiaoyun Ma, Ruiping Zeng , lezheng wu,{2., Youzhao chen Eye Research Institute, zhongshan ophthalmic center, sun yat-sen University of medical sciences {12. 510060, china.~+department of medical Genetics, SUMS, {12. 510080, china. Eye Research Institute Sun Yat-sen University of Medical Sciences Guangzhou China.

According to the fact that the abnormalities of visual pigment genes were always involved in the changing of the exon 5, two oligonucleotide primers were designed to amplify the exon 5 of red pigment gene and green pigment gene. After electrophoresis of the PCR products digested with Rsal or Sau3A, the DNA fragments from the exon 5 of red pigment gene (RPG) and green pigment gene (GPG) were separated since there are different restriction endonuclease sites. On the other hand, we analyzed the exon 5 rela...

关键词： Color vision defect Gene Polymerase chain reaction Nucleic acid hybridization Heredity.

VISUAL FIELD VERSUS VISUAL EVOKED POTENTIALS IN MACULOPATHIES AND OPTIC NEUROPATHIES

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Eye Science 1989年第Z1期14卷 52-59页

作者： Yu Wang de-zheng wu lezheng {2. Yaozhen chen zhongshan ophthalmic center sun yat-sen University of. medical sciences {12., china

Both kinetic and static visual fields and visual evoked potential （VEP） were tested in 52.patients with maculopathies and in 2. patients with axial optic neuropathies. The results of central static quantitative perimetry and pattern reversal VEP were compared. The amplitude and latency of P100were correlated with the total loss of central visual threshold in maculopathies. While the P100 latency was not correlated with the total loss of the central visual threshold in neuropathies, their latency delay was more obvious than that in maculopathies. We arrived at the conclusion that both VEP and visual field are necessary for assessing function loss and reflecting different pathological mechanisms in macular and optic nerve diseases.

关键词：气户处州

Comparative Studies of the Carbohydrate of Human Gamma-Crystallins from Fetal and Adult Lenses with Agglutinins

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眼科学报 1992年第3期8卷 108-110页

作者： Kaili wu Shaozhen Li Shengmin chen Huiyu Guo National Ophthalmological Laboratories,Ministry of Public Health,{2. zhongshan ophthalmic center,department of microbiology and immunology,sun yat-sen University of medical sciences,{12. 510060,{2. National Ophthalmological Laboratories Ministry of Public Health China.

Using gel chromatography of Sephadex G-75 superfine connectedwith Sephadex G-50 fine column,three human γ- crystallins(γ1,γ2.γ3)couldbe *** agglutinins(LCA,SBA,DBA,PNA,BSL,RCA and UEA)were used to detect the sugar of sub-γ-crystallins,which had been transferredto nitrocellulose membrane and finally stained with ABC reagents and the sub-strate of *** results suggested that γ2.and γ3-crystallin contain sugar,but γ1-crystallin has no *** is a decrease of carbohydrate of γ2.and γ3as...

关键词： human lens γ-crystallin carbohydrate agglutinin

CLINICAL APPLICATION OF MICROCOMPUTER TO VISUAL FUNCTION EXAMINATION

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Eye Science 1990年第Z1期15卷 27-31,35页

作者： lezheng wu Shuai {2. Jiongji Liang Daiyan Xin Minzhong Yu de-zheng wu zhongshan ophthalmic center sun yat-sen University of medical sciences {12., china

Microcomputer technique is put into use in ophthalmological clinical visual function examination. In visual EOG, ENG, visual tracking, contrast sensitivity and VEP examination, objectifying and standardization of experiment and data analysis are achieved by computer technique. In addition, a lot of manpower and time is saved, test results are obtained faster and more accurately. The basic rational of computerization in clinical visual function examination is presented.

关键词： VISUAL faster pursuit rational minutes degeneration distinguished epithelium retina superiority

Retinoma and Phthisis Bulbi of Retinoblastoma *** and Genetic Analysis

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眼科学报 1992年第3期8卷 117-121页

作者： Qingjiong Zhang Youzhao chen Zhongyao wu Qiaoyun Ma Ruiping Zeng Xiangming Guo Danyang Li National Ophthalmological Laboratories,Ministry of Public Health,{2. zhongshan ophthalmic center,sun yat-sen University of medical sciences,guangzhou {12.,{2. National Ophthalmological Laboratories Ministry of Public Health China.

Retinoma and phthisis bulbi of retinoblastoma are rare entitiesfound in retinoblastoma patients and their *** cases of phthisisbulbi of retinoblastoma and 9 cases of retinoma were identified from 1966 to1991 in our *** clinic data show that retinoma and phthisis bulbi areclosely related to the retinoblastoma *** should be carried outas soon as possible without hesitation for the phthisis of eyes with *** counseling and frequent observation should be p...

关键词： Retinoma Retinoblastoma phthisis bulbi spontaneous regression

Engineered extracellular vesicles efficiently deliver CRISPR-Cas9 ribonucleoprotein(RNP)to inhibit herpes simplex virus1 infection in vitro and in vivo

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Acta Pharmaceutica Sinica B 2024年第3期14卷 1362-1379页

作者： Yuanda Wan Liren Li Ruilin chen Jiajia Han Qiyun Lei Zhipeng chen Xiaodong Tang Wenyu {2. Shuwen Liu Xingang Yao NMPA Key Laboratory for Research and Evaluation of Drug Metabolism Guangdong Provincial Key Laboratory of New Drug ScreeningSchool of Pharmaceutical SciencesSouthern Medical UniversityGuangzhou 510515China center of Clinical Pharmacy Nanfang HospitalSouthern Medical UniversityGuangzhou 510515China State Key Laboratory of Ophthalmology Zhongshan Ophthalmic CenterSun Yat-sen UniversityGuangzhou 510060China Key Laboratory of Infectious Diseases Research in South china(Southern medical University) Ministry of EducationGuangzhou 510515China

Extracellular vesicles(EVs)have recently emerged as a promising delivery platform for CRISPR/Cas9 ribonucleoproteins(RNPs),owing to their ability to minimize off-target effects and immune ***,enhancements are required to boost the efficiency and safety of Cas9 RNP enrichment within *** response,we employed the Fc/Spa interaction system,in which the human Fc domain was fused to the intracellular domain of PTGFRN-Δ687 and anchored to the EV ***,the B domain of the Spa protein was fused to the C domain of cargos such as Cre or *** to the robust interaction between Fc and Spa,this method enriched nearly twice the amount of cargo within the *** loaded with spCas9 RNP targeting the HSV1 genome exhibited significant inhibition of viral replication in vitro and in ***,following neuron-targeting peptide RVG modification,the in vivo dosage in neural tissues substantially increased,contributing to the clearance of the HSV1 virus in neural tissues and exhibiting a lower off-target *** findings establish a robust platform for efficient EV-based SpCas9 delivery,offering potential therapeutic advantages for HSV1 infections and other neurological disorders.

关键词： Extracellular vesicles CRISPR/Cas9 Ribonucleoproteins PTGFRN Fc/Spa HSV1 Neuron-targeting delivery