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https://www.readbyqxmd.com/read/29781834/ocular-findings-in-exfoliation-syndrome
#1
Robert Ritch
Exfoliation syndrome (XFS) is characterized by numerous ocular manifestations, the most important of these being glaucoma and cataract. Its ocular manifestations affect all of the structures of the anterior segment as well as conjunctiva and orbital structures. Exfoliation material is seen most prominently as characteristic white deposits on the anterior surface of the lens and the pupillary border of the iris. Both open-angle and angle-closure glaucoma are intimately associated with XFS. Other findings include zonular disruption, iris sphincter fibrosis, keratopathy, ocular surface disease, and retinal vein occlusion...
May 17, 2018: Journal of Glaucoma
https://www.readbyqxmd.com/read/29778883/hyaluronic-acid-modified-lipid-polymer-hybrid-nanoparticles-as-an-efficient-ocular-delivery-platform-for-moxifloxacin-hydrochloride
#2
Dan Liu, Yunfei Lian, Qiuyu Fang, Lu Liu, Jundong Zhang, Juan Li
To improve the ocular bioavailability of the strongly hydrophilic moxifloxacin hydrochloride, hyaluronic-acid-modified lipid-polymer hybrid nanoparticles (HA-LCS-NPs) were designed and characterized. An in vivo precorneal retention study in rabbits showed that the mean residence time (MRT) and area under the curve (AUC0-6h ) of HA-LCS-NPs were up to 6.74-fold and 4.29-fold higher than those of the commercial product. An in vitro corneal penetration study in rabbits demonstrated that the apparent permeability coefficient (Papp) of HA-LCS-NPs was increased by 3...
May 17, 2018: International Journal of Biological Macromolecules
https://www.readbyqxmd.com/read/29777984/lc-ms-analysis-to-determine-the-biodistribution-of-a-polymer-coated-ilomastat-ocular-implant
#3
Abeer H A Mohamed-Ahmed, Alastair Lockwood, Hala Fadda, Shivam Madaan, Peng T Khaw, Steve Brocchini, Kersti Karu
Ilomastat is a matrix metalloproteinase inhibitor (MMPi) that has shown the potential to inhibit scarring (fibrosis) by mediating healing after injury or surgery. A long lasting ocular implantable pharmaceutical formulation of ilomastat is being developed to mediate the healing process to prevent scarring after glaucoma filtration surgery. The ilomastat implant was coated with water permeable and biocompatible phosphoryl choline polymer (PC1059) displayed extended slow release of ilomastat in vitro and in vivo...
May 16, 2018: Journal of Pharmaceutical and Biomedical Analysis
https://www.readbyqxmd.com/read/29777856/ocular-irritation-and-cyclosporine-a-distribution-in-the-eye-tissues-after-administration-of-solid-lipid-microparticles-in-the-rabbit-model
#4
Eliza Wolska, Małgorzata Sznitowska, Juliusz Chorążewicz, Oliwia Szerkus, Aleksandra Radwańska, Michał J Markuszewski, Roman Kaliszan, Krystyna Raczyńska
The aim of this study was to investigate the in vivo effect of Solid Lipid Microparticles (SLM), proposed for topical ocular administration of cyclosporine, on the rabbit eye. SLM carrier is an aqueous dispersion of lipid microparticles (20% w/w) with a size up to 15 μm. Cyclosporine was dissolved in the formulation in the concentration of 0.5 or 2.0% (w/w). Ocular tolerance of microsphere dispersion was assessed in rabbit model by the Draize eye test (SLM was compared with emulsion and oily solution), and cyclosporine distribution in ocular tissues was evaluated after multiple application of tested formulations (SLM dispersions, emulsions and oily solution) for 7 days...
May 16, 2018: European Journal of Pharmaceutical Sciences
https://www.readbyqxmd.com/read/29776761/-pterygium-surgery-by-conjunctiva-autograft-with-autologous-blood-fixation
#5
C G F Nganga Ngabou, C Makita, S S Ndalla, F Nkokolo, R Messe Ambia Koulimaya, B Diatewa
INTRODUCTION: Pterygium surgery is marked by the possibility of recurrences; one of the techniques which results in the least recurrences is conjunctival autograft. Fixation of the conjunctiva had traditionally been accomplished with sutures. In recent years, conjunctival grafting has also been performed with fibrin glue. Even more recently, with a view towards improving the quality of postoperative results, some surgeons recommend the use of autologous blood. This study aims to evaluate the stability of this latest method of graft fixation, while assessing its postoperative results...
May 15, 2018: Journal Français D'ophtalmologie
https://www.readbyqxmd.com/read/29776735/coculture-of-conjunctiva-derived-mesenchymal-stem-cells-cjmscs-and-corneal-epithelial-cells-to-reconstruct-the-corneal-epithelium
#6
Fatemeh Soleimanifar, Yousef Mortazavi, Samad Nadri, Maryam Islami, Saeid Vakilian
Coculture systems are widely used in tissue engineering to mimic cell-cell interactions between different populations. This study aimed to find an improved and convenient system for the corneal epithelial differentiation of conjunctiva derived mesenchymal stem cells (CJMSCs). Thus, the cells were used to reconstruct corneal epithelial cells. Obtained by flow cytometry data, 51.9% of isolated CJMSCs were immune reactive for SSEA4+ antibody which are more potent to differentiate into corneal epithelial cells...
May 15, 2018: Biologicals: Journal of the International Association of Biological Standardization
https://www.readbyqxmd.com/read/29772229/polybacterial-community-analysis-in-human-conjunctiva-through-16s-rrna-gene-libraries
#7
Deepthi KrishnanNair Geetha, Jayasudha Rajagopalaboopathi, Girish Rameshan Nair, Manikandan Palanisamy, Ram Rammohan, Narendran Venkatapathy, Prabagaran Solai Ramatchandirane
The conjunctival sac of healthy human harbours a variety of microorganisms. When the eye is compromised, an occasional inadvertent spread happens to the adjacent tissue, resulting in bacterial ocular infections. Microbiological investigation of the conjunctival swab is one of the broadly used modality to study the aetiological agent of conjunctiva. However, most of the time such methods yield unsatisfactory results. Hence, the present study intends to identify the bacterial community in human conjunctiva of pre-operative subjects through 16S rRNA gene libraries...
May 14, 2018: Experimental Eye Research
https://www.readbyqxmd.com/read/29765955/pediatric-multiple-endocrine-neoplasia-type-2b-clinicopathological-correlation-of-perilimbal-mucosal-neuromas-and-treatment-of-secondary-open-angle-glaucoma
#8
Ta Chen Chang, Kingsley C Okafor, Kara M Cavuoto, Sander R Dubovy, Carol L Karp
Ocular findings of multiple endocrine neoplasia type 2B (MEN 2B) include prominent corneal nerves, mucosal neuromas of the conjunctiva, glaucoma, and dry eyes. A 15-year-old girl with MEN 2B presents with advanced secondary open-angle glaucoma and bilateral perilimbal masses. High-resolution optical coherence tomography (HR-OCT) of the perilimbal lesions showed normal epithelial thickness and subepithelial lobular areas of mixed reflectivity, which correlates well with histopathologic findings of benign mucosal neuromas...
April 2018: Ocular Oncology and Pathology
https://www.readbyqxmd.com/read/29765945/atypical-fibroxanthoma-of-the-bulbar-conjunctiva-a-unique-case-describing-the-pathology-clinical-presentation-and-management
#9
Justin Kuiper, Ankit Shah, Rebecca Kuennen, Lynn Schoenfield
Background/Aims: Atypical fibroxanthoma is an uncommon tumor that usually occurs in the skin of the head and neck of the elderly with significant sun exposure. We describe a unique case featuring a rare ocular surface conjunctival tumor (atypical fibroxanthoma) and provide insight on its characteristic clinical features, surgical management, and histology. Methods: A 71-year-old male fisherman with no pertinent ocular history presented to an academic center with a rapidly enlarging bulbar conjunctival mass in the right perilimbal region for the past several months...
April 2018: Ocular Oncology and Pathology
https://www.readbyqxmd.com/read/29758979/developmental-screening-tool-accuracy-and-feasibility-of-non-invasive-anaemia-estimation
#10
Raja Muthalagu, Vijayan Thulasi Bai, Doreen Gracias, Sheila John
Anaemia is predicted as one of the serious communal health issue in the world. The deficiency exists most common among children and women. A substantial issue prevails in providing quality healthcare services to rural communities, which remains a challenge to health service providers throughout the world. Traditionally physician and health workers recognized anaemia from certain clinical findings, such as pallor of the conjunctivae, nail beds, lips, tongue, and oral mucosa. Confirmation of anaemic condition through physical examination of Dorsum of a tongue or lower bulbar conjunctiva is a subjective analysis...
April 30, 2018: Technology and Health Care: Official Journal of the European Society for Engineering and Medicine
https://www.readbyqxmd.com/read/29757849/ocular-surface-findings-in-patients-with-lichen-planopilaris
#11
Mehdi Gheisari, Sahar Dadkhahfar, Kaveh Fadakar, Reza Mahmoud Robati, Hamideh Moravvej, Mohammad Soleimani, Reza Mirshahi
PURPOSE: Lichen planopilaris (LPP) is a chronic lymphocytic- mediated disorder that selectively involves hair follicles, leading to cicatricial alopecia. The eyelash follicle and meibomian gland (MG) might also be involved in the disease process leading to ocular surface problems. METHODS: In this Cross-sectional case -control study, twenty-three patients with histologically confirmed LPP and 23 healthy controls were recruited in this controlled study. To quantify the signs and symptoms of LPP, we used the Lichen Planopilaris Activity Index...
May 10, 2018: Cornea
https://www.readbyqxmd.com/read/29757552/-the-influence-of-sublingual-immunotherapy-on-quality-of-life-in-children-with-allergic-rhinitis
#12
Gui Yang, Shu Qi Qiu, Peng Wang, Dan Chen, Sheng Li, Tian Yong Hu, Li Ma, Zhi Qiang Liu
Objective: To analyze the impact of sublingual immunotherapy(SLIT)on the quality of life in children with allergic rhinitis. Method: Fifty children with allergic rhinitis who have received sublingual immunotherapy were enrolled in this study.Quality of life was evaluated via measurement of VAS score and rhinoconjunctivitis quality of life questionnaire(RQLQ)before and after treatment. Result: Twenty patients after treatment had complete remission,13 cases were partly alleviated and 17 cases had no response...
January 20, 2018: Journal of Clinical Otorhinolaryngology, Head, and Neck Surgery
https://www.readbyqxmd.com/read/29751365/the-interplay-between-risk-and-preventive-factors-explains-why-some-children-develop-allergies-to-certain-foods-and-others-show-tolerance
#13
REVIEW
Sami Remes, Petri Kulmala
AIM: A number of studies have clarified the tolerance mechanisms and risk factors for food allergies. Our aim was to explore food allergy symptoms by target organs, together with the risk factors and how to prevent food allergies and induce tolerance. METHODS: We carried out a thorough review of studies on paediatric food allergies published in the last decade. RESULTS: Food allergy symptoms may affect the skin, nasal and oral mucosa, conjunctivae, gastrointestinal tract, or, in severe cases, the respiratory tract and cardiovascular organs...
May 11, 2018: Acta Paediatrica
https://www.readbyqxmd.com/read/29741149/case-report-probable-case-of-spontaneous-encephalopathy-due-to-loiasis-and-dramatic-reduction-of-loa-loa-microfilariaemia-with-prolonged-repeated-courses-of-albendazole
#14
Divine B Arrey-Agbor, Hugues C Nana-Djeunga, Aude E Mogoung-Wafo, Mirabelle Mafo, Christian Danwe, Joseph Kamgno
Loiasis is a vector-borne parasitic disease caused by the filarial nematode Loa loa and transmitted by the tabanid vectors from the genus Chrysops . Loa loa infection is associated with clinical manifestations such as pruritus, migratory transient edema, passage of adult worm in the bulbar conjunctiva, retinal damage, glomerular damage, albuminuria, pleural effusion, hydrocele, and endomyocardial fibrosis. Data reporting the occurrence of spontaneous encephalopathy associated with loiasis are very scanty. Severe adverse events occurring post-ivermectin administered in the framework of the fight against onchocerciasis and/or lymphatic filariasis in loiasis co-endemic areas have been closely associated with very high L...
May 7, 2018: American Journal of Tropical Medicine and Hygiene
https://www.readbyqxmd.com/read/29738013/atypical-posterior-scleritis-mimicking-choroidal-melanoma
#15
Heba M Alsharif, Saad A Al-Dahmash
We report a case of atypical posterior scleritis mimicking amelanotic choroidal melanoma. A 30-year-old healthy Filipino man, with a history of painless subacute loss of vision in his left eye over 5 months, was referred to our institute for further workup and management. On examination, visual acuity of the left eye was 20/200. Anterior segment examination yielded unremarkable results, with injected conjunctiva and quiet episcleral blood vessels, while fundus examination revealed non-pigmented nasal choroidal mass, with significant subretinal fluid resembling amelanotic choroidal melanoma...
May 2018: Saudi Medical Journal
https://www.readbyqxmd.com/read/29735434/-primary-uveal-lymphoma-effectively-treated-with-radiotherapy-a-case-report-and-literature-review
#16
Ruo-Xin Wu, Tao Yang, Zhu-Ping Xu
Primary uveal lymphoma is a type of intra-ocular lymphoma. Unlike the intra-ocular lymphomas involving the retina and vitreous, primary uveal lymphoma generally has a low-grade nature and an indolent clinical course. It is a relatively rare condition, and the diagnosis can be challenging. We present a rare case of primary uveal lymphoma involving the choroid, ciliary body, iris and conjunctiva that was successfully treated with radiotherapy and achieved full remission.
April 20, 2018: Nan Fang Yi Ke da Xue Xue Bao, Journal of Southern Medical University
https://www.readbyqxmd.com/read/29732557/overexpression-of-ezh2-in-conjunctival-melanoma-offers-a-new-therapeutic-target
#17
Jinfeng Cao, Kelly C S Pontes, Renier C Heijkants, Niels J Brouwer, Arwin Groenewoud, Ekaterina S Jordanova, Marina Marinkovic, Sjoerd van Duinen, Amina F A S Teunisse, Robert M Verdijk, Ewa Snaar-Jagalska, Aart G Jochemsen, Martine J Jager
Malignant melanoma of the conjunctiva (CM) is an uncommon but potentially deadly disorder. Many malignancies show an increased activity of the epigenetic modifier Enhancer of zeste homolog 2 (EZH2). We studied whether EZH2 is expressed in CM, and whether it may be a target for therapy in this malignancy. Immunohistochemical analysis showed that EZH2 protein expression was absent in normal conjunctival melanocytes and primary acquired melanosis, while EZH2 was highly expressed in 13 (50%) of 26 primary CM and seven (88%) of eight lymph node metastases...
May 7, 2018: Journal of Pathology
https://www.readbyqxmd.com/read/29719652/simultaneous-unilateral-presentation-of-three-different-ocular-manifestations-of-granulomatosis-with-polyangiitis
#18
Ali Salehi, Farzan Kianersi, Heshmatollah Ghanbari, Zahra Dastborhan, Ebrahim Gerami, Elnaz Pirmoazzen
Purpose: To report the simultaneous presentation of three ocular manifestations of granulomatosis with polyangiitis in one eye. Case Report: A 42-year-old man with a confirmed diagnosis of granulomatosis with polyangiitis was referred to the emergency room with sudden blurred vision. Eye examination showed hyperemic conjunctiva due to necrotizing scleritis in the superior nasal quadrant of the left eye, a mass in the left superior lid, as well as central retinal artery occlusion in the same eye...
April 2018: Journal of Ophthalmic & Vision Research
https://www.readbyqxmd.com/read/29719638/topical-olopatadine-hydrochloride-versus-ketotifen-fumarate-for-allergic-conjunctivitis
#19
Dharmistha Patel, N Sarala, Narendra Panduranga Datti
Purpose: Allergic conjunctivitis (AC) is associated with itching, redness, tearing, pain, and burning sensation in the eyes. The inflammatory process is caused by the mechanism of immediate hypersensitivity due to direct contact with the allergen. This process triggers mast cells in the conjunctiva to activate and release mediators. The purpose of this study was to compare topical olopatadine and ketotifen in terms of effectiveness and safety for the management of AC. Methods: Patients clinically diagnosed with AC were randomized into two groups of 60 patients each and received either topical olopatadine HCl 0...
April 2018: Journal of Ophthalmic & Vision Research
https://www.readbyqxmd.com/read/29705554/glycoprotein-340-in-mucosal-immunity-and-ocular-surface
#20
REVIEW
Kwaku A Osei, Champion Deivanayagam, Jason J Nichols
Glycoprotein 340 (Gp340) is an innate immune receptor with well-defined roles in mucosal tissues. It is a normal component of mucosal fluids such as tears, breast milk, and saliva, and it is expressed in tissues such as the vagina, gastrointestinal tract, oral cavity, lung alveoli, and pancreas. In the eye, it is expressed in the lacrimal gland, cornea, conjunctiva, and retina. Investigations of the protein in wet-surfaced epithelia of the body show that the effects of Gp340 can be beneficial or harmful depending on the conformation in which it exists...
April 26, 2018: Ocular Surface
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