Results 91 to 100 of about 142,219 (404)

Single-cell transcriptome of the mouse retinal pigment epithelium in response to a low-dose of doxorubicin

Communications Biology, 2022
Single cell transcriptomics pinpoints a cell subpopulation that could be involved in inducing cellular senescence of the retinal pigment epithelium, which in turn may construe retinal degenerative disease.
Hyungwoo Lee, Ho-Yeon Lee, Jae-Byoung Chae, Chul-Woo Park, Chaekyu Kim, Ja-Hyoung Ryu, Jiwon Jang, Namshin Kim, Hyewon Chung   +8 more
doaj   +1 more source

Phagocytosis-dependent ketogenesis in retinal pigment epithelium

Journal of Biological Chemistry, 2017
Daily, the retinal pigment epithelium (RPE) ingests a bolus of lipid and protein in the form of phagocytized photoreceptor outer segments (OS). The RPE, like the liver, expresses enzymes required for fatty acid oxidation and ketogenesis.
Juan Reyes-Reveles, A. Dhingra, Desiree Alexander, A. Bragin, N. Philp, K. Boesze-Battaglia   +5 more
semanticscholar   +1 more source

Benchmarking Ploidy Estimation Methods for Bulk and Single‐Cell Whole Genome Sequencing

Advanced Science, EarlyView.
It comprehensively benchmarks computational tools for ploidy estimation from bulk and single‐cell whole‐genome sequencing data. The results highlight the strengths and limitations of each method under different conditions and identify PURPLE and SeCNV show top performance in bulk and single‐cell settings, respectively.
Yawei Song, Zilv Mei, Qijie Zheng, Qingqing Yuan, Yu Liang, Jiaqi Gao, Lang Zhou, Shuheng Wu, Wei Wu   +8 more
wiley   +1 more source

JAPANESE QUAIL (COTURNIX JAPONICA) AS A MODEL OF ACCELERATED AGING OF HUMAN RETINAL PROCESSES. REPORT 1. ASSESSMENT OF THE AGE RPE LIPOFUSCIN ACCUMULATION DEPENDING ON THE RETINAL AMOUNT OF OXYCAROTENOIDS

Офтальмохирургия, 2015
Purpose. Using the eyes of quails C. japonic as a model system to evaluate age-related accumulation of lipofuscin granules in the cells of the retinal pigment epithelium depending on the level of oxycarotenoids content in the retina and in the retinal ...
P. P. Zak, A. V. Zykova, N. N. Trofimova, M. A. Ostrovsky   +3 more
doaj  

Associations Between Retinal Pigment Epithelium and Drusen Volume Changes During the Lifecycle of Large Drusenoid Pigment Epithelial Detachments

Investigative Ophthalmology and Visual Science, 2016
Purpose Drusenoid pigment epithelial detachments (PEDs) are a defined path to atrophy in age-related macular degeneration (AMD). We analyzed the relationships between retinal pigment epithelium (RPE) and drusen volume changes during the PED lifecycle ...
Chandrakumar Balaratnasingam, L. Yannuzzi, C. Curcio, William H. Morgan, G. Querques, V. Capuano, E. Souied, Jesse J. Jung, K. Freund   +8 more
semanticscholar   +1 more source

PDZK1 Protects Against RPE Senescence by Targeting the 14‐3‐3ε‐mTOR Axis to Attenuate Early Diabetic Retinopathy

Advanced Science, EarlyView.
PDZK1 down‐regulation couples high‐glucose stress to RPE senescence via a PDZK1–14‐3‐3ε–mTOR axis. Restoring PDZK1 or clearing senescent cells rescues retinal homeostasis and mitigates early diabetic retinopathy (DR). This study provides direct evidence linking RPE cell senescence to DR pathogenesis and reveals a promising therapeutic strategy for DR ...
Jian Zhao, Junbiao Zhang, Yanli Liu, Lili Wang, Chunxi Huang, Wei Chi, Meixia An   +6 more
wiley   +1 more source

Near-infrared fundus autoflorescence imaging in solar retinopathy

GMS Ophthalmology Cases, 2017
Solar retinopathy is a rare clinical entity caused by photochemical damage to the retinal pigment epithelium layer and photoreceptors of the fovea. Here we describe a case of a 33-year-old female patient diagnosed by near-infrared fundus autofluorescence
Czepita, Maciej, Machalińska, Anna, Czepita, Damian   +2 more
doaj   +1 more source

Norbixin Protects Retinal Pigmented Epithelium Cells and Photoreceptors against A2E-Mediated Phototoxicity In Vitro and In Vivo. [PDF]

PLoS ONE, 2016
The accumulation of N-retinylidene-N-retinylethanolamine (A2E, a toxic by-product of the visual pigment cycle) in the retinal pigment epithelium (RPE) is a major cause of visual impairment in the elderly.
Valérie Fontaine, Elodie Monteiro, Elena Brazhnikova, Laëtitia Lesage, Christine Balducci, Louis Guibout, Laurence Feraille, Pierre-Paul Elena, José-Alain Sahel, Stanislas Veillet, René Lafont   +10 more
doaj   +1 more source

Phagocytosed photoreceptor outer segments activate mTORC1 in the retinal pigment epithelium

Science Signaling, 2018
The metabolic regulator mTORC1 is activated every morning in the retinal pigment epithelium. Activating mTORC1 with phagocytosis Every morning, photoreceptor outer segments in the retina are shed, phagocytosed by the retinal pigment epithelium, and ...
Bo Yu, Anuoluwapo Egbejimi, Rachayata Dharmat, Pei-Min Xu, Zhenyang Zhao, Bo Long, Hongyu Miao, Rui Chen, T. Wensel, Jiyang Cai, Yan Chen   +10 more
semanticscholar   +1 more source

Retinitis Pigmentosa‐Associated Gene TRIM49 Regulates ULK1‐Mediated Autophagy and Photoreceptor Phagocytosis by the Retinal Pigment Epithelium

Advanced Science, EarlyView.
Based on next‐generation sequencing data of retinitis pigmentosa (RP) patients and controls, this study identifies TRIM49 as a novel gene for autosomal recessive RP. TRIM49 is specifically expressed in the retinal pigment epithelium (RPE) of human retina.
Zhen Yi, Chaojuan Wen, Han Du, Yingwei Wang, Shuowei Chen, Jie Liu, Shuhan Zhang, Junwen Wang, Xueshan Xiao, Shiqiang Li, Xiaoyun Jia, Yi Jiang, Jiamin Ouyang, Panfeng Wang, James Fielding Hejtmancik, Wenmin Sun, Huangxuan Shen, Qingjiong Zhang   +17 more
wiley   +1 more source