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Acute retina necrosis

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https://www.readbyqxmd.com/read/30025145/tumor-necrosis-factor-inhibition-in-the-acute-management-of-traumatic-optic-neuropathy
#1
Brian C Tse, Galina Dvoriantchikova, Wensi Tao, Ryan A Gallo, John Y Lee, Steven Pappas, Roberta Brambilla, Dmitry Ivanov, David T Tse, Daniel Pelaez
Purpose: To determine the effectiveness of etanercept, a tumor necrosis factor (TNF) inhibitor, in conferring neuroprotection to retinal ganglion cells (RGCs) and improving visual outcomes after optic nerve trauma with either optic nerve crush (ONC) or sonication-induced traumatic optic neuropathy (SI-TON) in mice. Methods: Mouse optic nerves were unilaterally subjected to ONC (n = 20) or SI-TON (n = 20). TNF expression was evaluated by using immunohistochemistry and quantitative RT-PCR (qRT-PCR) in optic nerves harvested 6 and 24 hours post ONC (n = 10) and SI-TON (n = 10)...
June 1, 2018: Investigative Ophthalmology & Visual Science
https://www.readbyqxmd.com/read/29802245/zika-virus-infection-causes-persistent-chorioretinal-lesions
#2
Mohanraj Manangeeswaran, Jennifer L Kielczewski, H Nida Sen, Biying C Xu, Derek D C Ireland, Ian L McWilliams, Chi-Chao Chan, Rachel R Caspi, Daniela Verthelyi
Zika-infected patients can have eye involvement ranging from mild conjunctivitis to severe chorioretinal lesions, however the possible long-term sequelae of infection and timeline to recovery remain unknown. Here we describe the partial recovery of chorioretinal lesions in an immunocompetent patient diagnosed with bilateral posterior uveitis associated with Zika infection and show that some lesions resolved with focal atrophy evident as pigmentary changes on funduscopy. To better understand the progression of the lesions and correlate the changes in fundus imaging with local viral load, immune responses, and retinal damage, we developed a symptomatic mouse model of ocular Zika virus infection...
May 25, 2018: Emerging Microbes & Infections
https://www.readbyqxmd.com/read/29747369/-the-relationship-between-optical-coherence-tomography-performance-and-visual-acuity-of-acute-retinal-necrosis
#3
Y Di, J J Ye, D H Li
Objective: To analyze the relationship between optical coherence tomography(OCT) performance and visual acuity of patients with acute retinal necrosis (ARN). Methods: Retrospective analysis was performed on the patients diagnosed with ARN at the ophthalmology department of Peking union hospital during October 2011 and May 2016. Fourteen patients (15 eyes), 9 males and 5 females, whose anterior and posterior inflammation disappeared and the retinal necrosis lesion in the fundus of the eye subsided were included...
May 11, 2018: [Zhonghua Yan Ke za Zhi] Chinese Journal of Ophthalmology
https://www.readbyqxmd.com/read/29452101/cytokine-signaling-protein-3-deficiency-in-myeloid-cells-promotes-retinal-degeneration-and-angiogenesis-through-arginase-1-up-regulation-in-experimental-autoimmune-uveoretinitis
#4
Mei Chen, Jiawu Zhao, Imran H A Ali, Stephen Marry, Josy Augustine, Mohajeet Bhuckory, Aisling Lynch, Adrien Kissenpfennig, Heping Xu
The suppressor of cytokine signaling protein 3 (SOCS3) critically controls immune cell activation, although its role in macrophage polarization and function remains controversial. Using experimental autoimmune uveoretinitis (EAU) as a model, we show that inflammation-mediated retinal degeneration is exaggerated and retinal angiogenesis is accelerated in mice with SOCS3 deficiency in myeloid cells (LysMCre/+ SOCS3fl/fl ). At the acute stage of EAU, the population of infiltrating neutrophils was increased and the population of macrophages decreased in LysMCre/+ SOCS3fl/fl mice compared with that in wild-type (WT) mice...
April 2018: American Journal of Pathology
https://www.readbyqxmd.com/read/29336491/effect-of-sex-steroid-hormone-fluctuations-in-the-pathophysiology-of-male-retinal-pigment-epithelial-cells
#5
Carlo Astarita, Barbara D'Angelo-Maansson, Mina Massaro-Giordano, Maria P Alba, Silvia Boffo, Ilaria Macchi, Antonio Giordano, Marcella Macaluso
Gender-based differences may influence the occurrence of several ocular conditions suggesting the possibility that fluctuations in sex steroid homeostasis may have direct effects on the eye physiology. Here, we evaluated the effect of sex steroid hormone fluctuations in male retinal pigment epithelial cells, RPEs (ARPE-19). To mimic hormonal fluctuations occurring during aging, we exposed ARPE-19 to acute, prolonged or chronic estradiol, and progesterone challenges. We found that chronic estradiol treatment promotes a remarkable necrosis of RPE cells, and does not affect pRb2/p130 or PAI-2 sub-cellular localization...
September 2018: Journal of Cellular Physiology
https://www.readbyqxmd.com/read/29258454/atypical-acute-retinal-necrosis-accompanied-by-terson-s-syndrome-a-case-report
#6
Jong Young Lee, Dong Yoon Kim, Hye Jin Lee, Jin Ho Jeong, Sung Pyo Park, Jin Young Kim
BACKGROUND: Acute retinal necrosis (ARN) has characterized by panuveitis, vitritis, severe vaso-occlusive vasculitis, and diffuse necrotizing retinitis. There are no case reports on atypical ARN combined with Terson's syndrome. Herein, we report a case of ARN with atypical clinical features combined with Terson's syndrome that we successfully treated by intravitreal ganciclovir injection. CASE PRESENTATION: A 64-year-old man visited our eye clinic with a complaint of decreased visual acuity in his right eye...
December 19, 2017: BMC Ophthalmology
https://www.readbyqxmd.com/read/29062764/gastrodin-protects-retinal-ganglion-cells-through-inhibiting-microglial-mediated-neuroinflammation-in-an-acute-ocular-hypertension-model
#7
Jia-Wei Wang, Yao-Ming Liu, Xiao-Fei Zhao, Han Zhang
AIM: To investigate the neuroprotective effect of gastrodin on retinal ganglion cells (RGCs) in an acute ocular hypertension (AOH) rat model and to identify its possible mechanism. METHODS: AOH rat model was performed in a randomly selected eye by anterior chamber perfusion and either received an intraperitoneal injection with various concentrations of gastrodin or normal saline. After 2wk, the rats were sacrificed. FluoroGold was used to label survival RGCs. Immunostaining with anti-Iba1 in the retinal flat mounts to calculate the microglia density in the ganglion cell layer (GCL)...
2017: International Journal of Ophthalmology
https://www.readbyqxmd.com/read/28885615/necroptosis-in-microglia-contributes-to-neuroinflammation-and-retinal-degeneration-through-tlr4-activation
#8
Zijing Huang, Tian Zhou, Xiaowei Sun, Yingfeng Zheng, Bing Cheng, Mei Li, Xialin Liu, Chang He
Inflammation has emerged to be a critical mechanism responsible for neural damage and neurodegenerative diseases. Microglia, the resident innate immune cells in retina, are implicated as principal components of the immunological insult to retinal neural cells. The involvement of microglia in retinal inflammation is complex and here we propose for the first time that necroptosis in microglia triggers neuroinflammation and exacerbates retinal neural damage and degeneration. We found microglia experienced receptor-interacting protein kinase 1 (RIP1)- and RIP3-dependent necroptosis not only in the retinal degenerative rd1 mice, but also in the acute retinal neural injury mice...
January 2018: Cell Death and Differentiation
https://www.readbyqxmd.com/read/28501392/acute-retinal-necrosis-presenting-characteristics-and-clinical-outcomes-in-a-cohort-of-polymerase-chain-reaction-positive-patients
#9
Nicholas J Butler, Ahmadreza Moradi, Sherveen S Salek, Bryn M Burkholder, Theresa G Leung, James P Dunn, Jennifer E Thorne
PURPOSE: To identify determinants of adverse outcomes in acute retinal necrosis (ARN), presenting characteristics and incidence rates of vision loss and ocular complications in a cohort of polymerase chain reaction (PCR)-positive eyes were analyzed. DESIGN: Retrospective observational cohort study. METHODS: Forty-one eyes of 36 patients with clinically diagnosed ARN, PCR-positive for herpes simplex virus or varicella zoster virus and evaluated between January 2002 and June 2013, were included...
July 2017: American Journal of Ophthalmology
https://www.readbyqxmd.com/read/28498303/varicella-zoster-virus-associated-necrotizing-retinitis-after-chickenpox-in-a-10-year-old-female-a-case-report
#10
Yong Un Shin, Jihong Kim, Eun Hee Hong, Jieun Kim, Joo Hyun Sohn, Heeyoon Cho
A necrotizing retinitis in children is a rare but vision-threatening ocular complication of chickenpox. We report a 10-year-old girl who developed chickenpox 1 month before presenting with panuveitis and necrotizing retinitis. After prompt antiviral treatment, her inflammatory signs were resolved. Early detection and treatment of varicella zoster-associated necrotizing retinitis after chickenpox can achieve good visual outcome.
October 2017: Pediatric Infectious Disease Journal
https://www.readbyqxmd.com/read/28409025/the-impact-of-the-menstrual-cycle-on-perioperative-bleeding-in-vitreoretinal-surgery
#11
Zhong Lin, Nived Moonasar, Rong Han Wu, Robin R Seemongal-Dass
Purpose. To investigate the effect of menstrual cycle on perioperative bleeding of primary vitreoretinal surgery. Methods. Data on female patients who had vitrectomy surgery was retrospectively collected. Exclusion criteria were history of trauma, vitreous hemorrhage, previous vitreoretinal surgery, diabetic retinopathy, endophthalmitis, acute retinal necrosis, single vitreous opacity, and use of antiplatelet agents. Perioperative bleeding was defined as hemorrhage in the iris, vitreous, choroidal, retina, or subretina during surgery or up to one day postoperatively...
2017: Journal of Ophthalmology
https://www.readbyqxmd.com/read/28221421/cytomegalovirus-retinitis-in-a-patient-with-non-hodgkins-lymphoma-a-diagnostic-dilemma
#12
R Chawla, P Venkatesh, S P Garg, S Mandal, H K Tewari
PURPOSE: Patients with lymphoma can rarely develop cytomegalovirus (CMV) retinitis. Clinically it is difficult to distinguish from intraocular lymphoma. Also, in such cases the CD4+ count may be high. The authors report a rare case of bilateral CMV retinitis in a patient with non-Hodgkins lymphoma with high CD4+ counts. METHODS: Observational case report with review of literature. RESULTS: CMV retinitis was clinically suspected due to the presence of large areas of retinal necrosis and hemorrhages in one eye and a demarcation line with white mottled retina in the other eye...
January 2005: European Journal of Ophthalmology
https://www.readbyqxmd.com/read/27809288/mmp-3-deficiency-alleviates-endotoxin-induced-acute-inflammation-in-the-posterior-eye-segment
#13
Inge Van Hove, Evy Lefevere, Lies De Groef, Jurgen Sergeys, Manuel Salinas-Navarro, Claude Libert, Roosmarijn Vandenbroucke, Lieve Moons
Matrix metalloproteinase-3 (MMP-3) is known to mediate neuroinflammatory processes by activating microglia, disrupting blood-central nervous system barriers and supporting neutrophil influx into the brain. In addition, the posterior part of the eye, more specifically the retina, the retinal pigment epithelium (RPE) and the blood-retinal barrier, is affected upon neuroinflammation, but a role for MMP-3 during ocular inflammation remains elusive. We investigated whether MMP-3 contributes to acute inflammation in the eye using the endotoxin-induced uveitis (EIU) model...
November 1, 2016: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/27799744/%C3%AE-aminoadipic-acid-protects-against-retinal-disruption-through-attenuating-m%C3%A3-ller-cell-gliosis-in-a-rat-model-of-acute-ocular-hypertension
#14
Xiaolei Wang, Jier Su, Jingwen Ding, Song Han, Wei Ma, Hong Luo, Guy Hughes, Zhaoyang Meng, Yi Yin, Yanling Wang, Junfa Li
OBJECTIVE: Ocular hypertension is an important risk factor for glaucoma. The purpose of this study was to investigate the gliotoxic effects of α-aminoadipic acid (AAA) in a rat model of AOH and its underlying mechanisms. MATERIALS AND METHODS: In the rat model of acute ocular hypertension (AOH), intraocular pressure was increased to 110 mmHg for 60 minutes. Animals were divided into four groups: sham operation (Ctrl), AOH, AOH + phosphate-buffered saline (PBS), and AOH + AAA...
2016: Drug Design, Development and Therapy
https://www.readbyqxmd.com/read/27715365/rate-of-retinal-detachment-after-early-prophylactic-vitrectomy-for-acute-retinal-necrosis
#15
COMPARATIVE STUDY
Jason Mingyi Huang, Patrick Callanan, David Callanan, Robert C Wang
PURPOSE: To compare the rate of retinal detachment after acute retinal necrosis in eyes that underwent early vitrectomy versus no early vitrectomy. METHODS: Charts of patients (61 eyes) who presented to Texas Retina Associates between January 1, 2006 and December 30, 2014 for acute retinal necrosis were reviewed. Charts with incomplete documentation or follow-up less than 6 months were excluded. Twenty-nine remaining eyes were divided into two groups: early vitrectomy and no early vitrectomy...
2018: Ocular Immunology and Inflammation
https://www.readbyqxmd.com/read/27694424/ocular-lesions-in-red-tailed-hawks-buteo-jamaicensis-with-naturally-acquired-west-nile-disease
#16
A Wünschmann, A G Armién, M Khatri, L C Martinez, M Willette, A Glaser, J Alvarez, P Redig
Ocular lesions are common in red-tailed hawks with West Nile (WN) disease. These lesions consist of pectenitis, choroidal or retinal inflammation, or retinal necrosis, but detailed investigation of the ocular lesions is lacking. Postmortem examination of the eyes of 16 red-tailed hawks with naturally acquired WN disease and 3 red-tailed hawks without WN disease was performed using histopathology, immunohistochemistry for West Nile virus (WNV) antigen, glial fibrillary acid protein, cleaved caspase-3, and the terminal deoxynucleotidyl transferase-mediated dUTP nick-end labeling method...
March 2017: Veterinary Pathology
https://www.readbyqxmd.com/read/27535721/microrna-regulation-in-an-animal-model-of-acute-ocular-hypertension
#17
Jiawei Wang, Francisco J Valiente-Soriano, Francisco M Nadal-Nicolás, Giuseppe Rovere, Shida Chen, Wenbin Huang, Marta Agudo-Barriuso, Jost B Jonas, Manuel Vidal-Sanz, Xiulan Zhang
PURPOSE: To analyse miRNA regulation in a rat model of acute ocular hypertension (AOH). METHODS: Acute ocular hypertension (AOH) was induced in the left eye of adult albino rats by inserting a cannula connected with a saline container into the anterior chamber. The contralateral eye served as a control. Seven days later, animals were killed. Retinas were used either for quantitative analysis of retinal ganglion cells (RGCs) and microglial cells or for miRNA array hybridization, qRT-PCR and Western blotting...
February 2017: Acta Ophthalmologica
https://www.readbyqxmd.com/read/27434898/long-term-surgical-outcomes-of-retinal-detachment-associated-with-acute-retinal-necrosis
#18
Laura J Kopplin, Akshay S Thomas, Stephanie Cramer, Yu Hyon Kim, Steven Yeh, Andreas K Lauer, Christina J Flaxel
BACKGROUND AND OBJECTIVE: To determine the long-term visual and surgical outcomes of patients with acute retinal necrosis (ARN) associated retinal detachment (RD). PATIENTS AND METHODS: The authors conducted a single-center, retrospective chart review from 2001 to 2012 of 32 eyes from 27 patients diagnosed with ARN. The authors assessed the rates and risk factors for recurrent RD in eyes having undergone primary RD repair for ARN-related RD. RESULTS: Fifteen eyes (46...
July 1, 2016: Ophthalmic Surgery, Lasers & Imaging Retina
https://www.readbyqxmd.com/read/27421045/functional-and-structural-evaluation-of-sildenafil-in-a-rat-model-of-acute-retinal-ischemia-reperfusion-injury
#19
Raaya Ezra-Elia, Germana Alegro da Silva, Diogo Sousa Zanoni, Renée Laufer-Amorim, Andréia Vitor Couto do Amaral, José Luiz Laus, Ron Ofri
PURPOSE: Retinal ischemia is a common cause of visual impairment and blindness. Sildenafil, a PDE5 inhibitor which inhibits cGMP degradation and in turn prolongs the effect of nitric oxide, has been shown to be protective in a number of ischemia/reperfusion (I/R) injuries, as well as in neuronal damage. We hypothesized that treatment with sildenafil might be neuroprotective in a model of acute retinal I/R injury. METHODS: Anterior chamber cannulation was performed to induce unilateral I/R injury in 38 Lewis rats...
March 2017: Current Eye Research
https://www.readbyqxmd.com/read/27283853/isolation-and-confirmation-of-viral-nervous-necrosis-vnn-disease-in-golden-grey-mullet-liza-aurata-and-leaping-mullet-liza-saliens-in-the-iranian-waters-of-the-caspian-sea
#20
M E J Zorriehzahra, M Ghasemi, M Ghiasi, S Haghighi Karsidani, G Bovo, A Nazari, M Adel, V Arizza, K Dhama
The present study was conducted on 428 moribund mullet fish samples to isolate and identify the causative agent of a mysterious acute mortality which recently occurred in wild mullets in Iranian waters of Caspian Sea, suspected to be due to viral nervous necrosis (VNN) disease. Disease investigation was carried out employing various diagnostic procedures such as virology, bacteriology, parasitology, haematology, histopathology, IFAT, IHC and nested RT-PCR. Brain and eye samples of affected fishes were collected in sterile conditions and then kept at -80°C for cell culture isolation and nested RT-PCR detection of the causative agent...
July 15, 2016: Veterinary Microbiology
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