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Herpes keratitis

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https://www.readbyqxmd.com/read/28903153/colony-stimulating-factor-1-receptor-expressing-cells-infiltrating-the-cornea-control-corneal-nerve-degeneration-in-response-to-hsv-1-infection
#1
Ana J Chucair-Elliott, Hem R Gurung, Meghan M Carr, Daniel J J Carr
Purpose: Herpes simplex virus type-1 (HSV-1) is a leading cause of neurotrophic keratitis, characterized by decreased or absent corneal sensation due to damage to the sensory corneal innervation. We previously reported the elicited immune response to infection contributes to the mechanism of corneal nerve regression/damage during acute HSV-1 infection. Our aim is to further establish the involvement of infiltrated macrophages in the mechanism of nerve loss upon infection. Methods: Macrophage Fas-Induced Apoptosis (MAFIA) transgenic C57BL/6 mice were systemically treated with AP20187 dimerizer or vehicle (VEH), and their corneas, lymph nodes, and blood were assessed for CD45+CD11b+GFP+ cell depletion by flow cytometry (FC)...
September 1, 2017: Investigative Ophthalmology & Visual Science
https://www.readbyqxmd.com/read/28892949/corneal-collagen-cross-linking-for-treatment-of-bacterial-and-herpetic-keratitis
#2
Mohammad Reza Khalili, Hamid Reza Jahadi, Mashaallah Karimi, Masoud Yasemi
INTRODUCTION: Optimal management of infective keratitis is a formidable challenge and subject of ongoing studies. Recently, Collagen Cross-Linking (CXL) of the cornea has been considered to be a new effective therapeutic approach for resistant infectious keratitis. AIM: Aim of the study was to evaluate the effectiveness of CXL with Ultraviolet-A (UV-A) and riboflavin for treatment of the refractory bacterial and Herpes Simplex Virus (HSV) keratitis. MATERIALS AND METHODS: In this prospective interventional study, eight patients with diagnosis of infectious keratitis who were referred to Khalili Hospital eye emergency room, between 2014 and 2015 were included in the study...
July 2017: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/28852187/in-vivo-confocal-microscopy-of-posner-schlossman-syndrome-comparison-with-herpes-simplex-keratitis-hla-b27-anterior-uveitis-and-acute-attack-of-primary-angle-closure
#3
Ying Hong, Miao Wang, Lingling Wu
To investigate in vivo confocal microscopy (IVCM) findings in patients with Posner-Schlossman Syndrome (PSS), we compared the IVCM findings from the eyes of patients with: PSS (44 eyes); herpes simplex keratitis (HSK) (45 eyes); HLA-B27 anterior uveitis (B27AU) (45 eyes); and with acute attack of primary angle closure (aPAC) (43 eyes). The central Langerhans cells (LCs) grade at the level of corneal basal epithelial cells of the PSS group (2.33 ± 0.55) was similar to that of the HSK group (2.63 ± 0...
August 29, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28837183/keratitis-in-association-with-herpes-zoster-and-varicella-vaccines
#4
A P Grillo, F W Fraunfelder
The objective of this review was to collect reports of keratitis in association with herpes zoster virus (HZV) or varicella zoster virus (VZV) vaccines. HZV vaccination is intended for at-risk adult populations and VZV vaccination is intended for all pediatric patients. We reviewed the literature and reports of keratitis in association with herpes zoster or varicella vaccine from the National Registry of Drug-Induced Ocular Side Effects and the World Health Organization. Twenty-four cases of unilateral keratitis in association with VZV vaccines were collected from the adverse reaction databases and literature...
July 2017: Drugs of Today
https://www.readbyqxmd.com/read/28827297/herpes-simplex-transmission-to-chest-and-face-through-autoinoculation-in-an-infant
#5
Jeroen J van Vonderen, Kim Stol, Emmeline P Buddingh, Danielle Cm van der Kaay
A 4-month-old female infant presented with a vesicular lesion on her left hand present since 1 day. A few days prior to presentation, she had a similar lesion on the lower lip. Two days after presentation, she returned with new lesions on her thorax and upper eyelid. PCR of the vesicle was positive for herpes simplex virus type 1. The transmission to her chest and face probably resulted from autoinoculation, caused by rubbing of the hand on other parts of the body. Transmission of herpes simplex through skin-to-skin contact is a common route of infection in people engaging in contact sports...
August 21, 2017: BMJ Case Reports
https://www.readbyqxmd.com/read/28700252/modified-allogenic-simple-limbal-epithelial-transplantation-followed-by-keratoplasty-as-treatment-for-total-limbal-stem-cell-deficiency
#6
Alfonso Vasquez-Perez, Mayank A Nanavaty
PURPOSE: To describe a modified allogenic simple limbal epithelial transplant (SLET) technique with large donor tissue explants followed by keratoplasty. METHODS: A 69-year-old with conjunctival melanoma on her left eye developed total limbal stem cell deficiency (LSCD) after multiple cycles of topical mitomycin. She also had herpes stromal keratitis while on treatment with mitomycin. She underwent modified allogenic SLET with large donor limbal tissue explants glued on the cornea directly and the amniotic membrane placed over the limbal explants...
July 12, 2017: Ocular Immunology and Inflammation
https://www.readbyqxmd.com/read/28666730/risk-factors-for-secondary-glaucoma-in-herpetic-anterior-uveitis
#7
Lisette Hoeksema, Nomdo M Jansonius, Leonoor I Los
PURPOSE: To determine the incidence of elevated intraocular pressure (IOP) and secondary glaucoma in herpetic anterior uveitis (AU), owing to either herpes simplex or varicella zoster virus, by using the Standardization of Uveitis Nomenclature (SUN) criteria, and to identify risk factors for the development of glaucoma. DESIGN: Retrospective observational cohort study. METHODS: Patients with herpetic AU presenting themselves between 2001 and 2013 at the ophthalmology department of the University Medical Center Groningen were included...
September 2017: American Journal of Ophthalmology
https://www.readbyqxmd.com/read/28660128/medical-and-surgical-management-of-pasteurella-canis-infectious-keratitis
#8
Ankit Shah, Mansi Talati, Thomas Mauger
INTRODUCTION: We describe a case of refractory Pasteurella Canis keratitis that initially failed antimicrobial treatment but was successfully treated with a conjunctival flap followed by a penetrating keratoplasty. CASE DISCUSSION: A 70-year-old male had persistent corneal edema related to previous herpes zoster keratouveitis with visual acuity of 20/400. An endothelial keratoplasty was performed with improvement in vision to 20/25. Several months after this surgery the patient developed a corneal infiltrate and cultures grew Pasturella canis...
2017: IDCases
https://www.readbyqxmd.com/read/28637763/analysis-of-herpes-simplex-virus-reactivation-in-explant-reveals-a-method-dependent-difference-in-measured-timing-of-reactivation
#9
Jessica R Doll, Nancy M Sawtell
Herpes simplex virus (HSV) infection is widespread in the human population. Following orofacial infection, HSV establishes latency in innervating sensory neurons, primarily located in the trigeminal ganglia. A central feature of HSV pathogenesis is the ability to periodically reactivate in those neurons and be transported back to the body surface. Both transmission and disease, such as keratitis, encephalitis, and neurodegeneration, have been linked to reactivation. Despite invaluable insights obtained from model systems, interactions between viral and host functions that regulate reactivation are still incompletely understood...
August 15, 2017: Journal of Virology
https://www.readbyqxmd.com/read/28591279/detection-of-herpes-simplex-1-and-2-and-varicella-zoster-virus-by-quantitative-real-time-polymerase-chain-reaction-in-corneas-from-patients-with-bacterial-keratitis
#10
Heloisa Nascimento, Aripuanã Watanabe, Ana Carolina Cabreira Vieira, Andrea Pelegrini, Maria Cecília Yu, Paulo José Martins Bispo, Celso Francisco Hernandes Granato, Ana Luisa Höfling-Lima
Objective: Bacterial keratitis occurs worldwide, and despite recent developments, it remains a potentially blinding condition. This study assesses the presence of herpes simplex virus (HSV-1 and -2) and varicella zoster virus (VZV) by quantitative real-time polymerase chain reaction (qPCR) in corneal scrapings from patients with bacterial keratitis. Methods: A total of 65 patients with clinical diagnoses of infectious corneal ulcers prospectively underwent clinical eye examinations...
March 2017: Arquivos Brasileiros de Oftalmologia
https://www.readbyqxmd.com/read/28584076/frontline-science-aspirin-triggered-resolvin-d1-controls-herpes-simplex-virus-induced-corneal-immunopathology
#11
Naveen K Rajasagi, Siddheshvar Bhela, Siva Karthik Varanasi, Barry T Rouse
Stromal keratitis (SK) is a chronic immunopathological lesion of the eye, caused by HSV-1 infection, and a common cause of vision impairment in humans. The inflammatory lesions in the cornea are primarily caused by neutrophils with the active participation of CD4(+) T cells. Therefore, the targeting of these immune cell types and their products represents a potentially valuable form of therapy to reduce the severity of disease. Resolvin D1 (RvD1) and its epimer aspirin-triggered RvD1 (AT-RvD1) are lipid mediators derived from docosahexaenoic acid (DHA) and were shown to promote resolution in several inflammatory disease models...
June 5, 2017: Journal of Leukocyte Biology
https://www.readbyqxmd.com/read/28582374/management-of-corneal-scarring-secondary-to-herpes-zoster-keratitis
#12
Omar M Hassan, Asim V Farooq, Ketki Soin, Ali R Djalilian, Joshua H Hou
PURPOSE: To review the management of visually significant corneal scarring secondary to herpes zoster keratitis (HZK). METHODS: Literature review. RESULTS: Management options for visually significant corneal scarring secondary to HZK include scleral contact lenses, photorefractive or phototherapeutic keratectomy, lamellar keratoplasty, penetrating keratoplasty, and keratoprosthesis. Many authors recommend tarsorrhaphy in at-risk patients at the time of corneal transplantation...
June 2, 2017: Cornea
https://www.readbyqxmd.com/read/28559714/practice-patterns-for-herpes-simplex-keratitis-a-survey-of-ophthalmologists-in-gulf-coast-countries
#13
Mashael A Alkhayyal, Donald U Stone
PURPOSE: Herpes simplex is a common cause of visual disability, and there are published evidence-based guidelines for therapy. This survey aims to determine the preferred practice patterns of ophthalmologists in Gulf Coast Countries regarding herpetic eye disease, as well as identify areas of controversy or barriers to acceptance of evidence-based protocols. METHODS: Anonymous web-based survey of ophthalmologists in Saudi Arabia, Bahrain, the United Arab Emirates, and Oman...
April 2017: Saudi Journal of Ophthalmology: Official Journal of the Saudi Ophthalmological Society
https://www.readbyqxmd.com/read/28520594/amplivue-is-a-practical-and-timely-test-for-the-detection-of-hsv-from-keratitis-specimens
#14
Regis P Kowalski, Lisa M Karenchak, Deepinder K Dhaliwal, Alex Mammen
OBJECTIVE: The laboratory diagnostic detection of herpes simplex virus (HSV) from eye samples must be practical, timely, and definitive for appropriate therapy. Although polymerase chain reaction (PCR) and/or cell culture can be definitive, HSV results can be delayed. Enzyme Linked Virus Inducible System (ELVIS) is a test that can provide results within 24 to 48 hr. We evaluated "AmpliVue HSV 1+2 Assay" as a molecular colorimetric test that can detect HSV (1 or 2) DNA within 1 hr. METHODS: Cornea/conjunctival samples were tested retrospectively with AmpliVue against 53 true-positive and 20 true-negative specimens collected in chlamydial transport medium...
May 16, 2017: Eye & Contact Lens
https://www.readbyqxmd.com/read/28513490/coexistence-of-herpes-simplex-virus-infection-in-microsporidial-stromal-keratitis-associated-with-granulomatous-inflammation
#15
Ruchi Mittal, Praveen K Balne, Srikant Sahu, Sujata Das, Savitri Sharma
BACKGROUND: Microsporidial stromal keratitis poses several diagnostic challenges. Patients may present with corneal ulceration, marked stromal thinning, or even as a quite corneal scar. The presentation of microsporidial stromal keratitis commonly mimics viral keratitis. Microbiology scrapings are usually helpful; however, scraping and culture-negative cases pose a significant diagnostic dilemma. Histopathological examination is diagnostic but shows varying degree of inflammation, predominantly composed of polymorphonuclear leukocytes...
April 2017: Indian Journal of Ophthalmology
https://www.readbyqxmd.com/read/28495905/long-term-outcomes-of-the-boston-type-i-keratoprosthesis-in-eyes-with-previous-herpes-simplex-virus-keratitis
#16
Melinda Fry, Carolina Aravena, Fei Yu, Jaffer Kattan, Anthony J Aldave
PURPOSE: To report the long-term outcomes of the Boston type I keratoprosthesis (Kpro) in eyes with prior herpes simplex virus (HSV) keratitis. METHODS: Retrospective review of all Kpro procedures performed by a single surgeon from 1 May 2004 to 1 January 2015. RESULTS: 13 of 173 Kpro procedures were performed in 11 eyes with prior HSV keratitis. There was not a significant difference in the percentage of eyes with and without prior HSV keratitis with preoperative (9% vs 8%, p=1...
May 11, 2017: British Journal of Ophthalmology
https://www.readbyqxmd.com/read/28491875/understanding-the-role-of-chemokines-and-cytokines-in-experimental-models-of-herpes-simplex-keratitis
#17
REVIEW
Tayaba N Azher, Xiao-Tang Yin, Patrick M Stuart
Herpes simplex keratitis is a disease of the cornea caused by HSV-1. It is a leading cause of corneal blindness in the world. Underlying molecular mechanism is still unknown, but experimental models have helped give a better understanding of the underlying molecular pathology. Cytokines and chemokines are small proteins released by cells that play an important proinflammatory or anti-inflammatory role in modulating the disease process. Cytokines such as IL-17, IL-6, IL-1α, and IFN-γ and chemokines such as MIP-2, MCP-1, MIP-1α, and MIP-1β have proinflammatory role in the destruction caused by HSV including neutrophil infiltration and corneal inflammation, and other chemokines and cytokines such as IL-10 and CCL3 can have a protective role...
2017: Journal of Immunology Research
https://www.readbyqxmd.com/read/28489722/bilateral-herpetic-keratitis-after-bilateral-intravitreal-bevacizumab-for-exudative-macular-degeneration
#18
Angeline M Derham, Eric Chen, Vatinee Y Bunya, Ronan E OʼMalley
PURPOSE: To report a case of bilateral herpetic epithelial keratitis after bilateral intravitreal bevacizumab injections for the treatment of exudative age-related macular degeneration. METHODS: A 66-year-old man with diabetes and an extensive history of bilateral anti-vascular endothelial growth factor treatments for exudative age-related macular degeneration received an intravitreal bevacizumab injection in the right eye and triple therapy (bevacizumab, photodynamic therapy, and triamcinolone acetonide) in the left eye...
July 2017: Cornea
https://www.readbyqxmd.com/read/28451758/the-evaluation-of-diagnostic-efficiency-for-stromal-herpes-simplex-keratitis-by-the-combination-of-tear-hsv-siga-and-hsv-dna
#19
Jini Qiu, Feifei Huang, Zhujian Wang, Jianjiang Xu, Chaoran Zhang
PURPOSE: To assess the differential diagnostic values for stromal herpes simplex keratitis (HSK) by using tear HSV-sIgA, tear HSV-DNA, and the combination. METHODS: Tear samples for both eyes and the paired serum were collected from 187 stromal HSK and 56 controls. Enzyme-linked immune sorbent assay (ELISA) was used to analyze the tear HSV-sIgA and serum IgG/IgM/IgA. The levels of tear HSV-DNA were measured by polymerase chain reaction (PCR). RESULTS: The positive rates for tear HSV-sIgA and HSV-DNA were 36...
July 2017: Graefe's Archive for Clinical and Experimental Ophthalmology
https://www.readbyqxmd.com/read/28434069/herpes-zoster-keratitis-development-after-acute-retinal-necrosis
#20
Waseem H Ansari, Francesco Pichi, Paula E Pecen, Careen Y Lowder, Sunil K Srivistava
PURPOSE: To report a case of herpes zoster keratitis in a patient undergoing treatment for herpetic acute retinal necrosis. METHODS: Case report. RESULTS: A 71 year old male presented with acute retinal necrosis of the left eye due to herpes zoster and was treated with intravitreal foscarnet and oral valcyclovir. He developed a retinal detachment and underwent surgical repair. After four weeks, he developed an ipsilateral herpetic zoster keratitis demonstrated by Rose-Bengal staining that was responsive to topical ganciclovir gel...
April 22, 2017: International Ophthalmology
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