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https://www.readbyqxmd.com/read/28444329/the-eye-drop-preservative-benzalkonium-chloride-potently-induces-mitochondrial-dysfunction-and-preferentially-affects-lhon-mutant-cells
#1
Sandipan Datta, Christophe Baudouin, Francoise Brignole-Baudouin, Alexandre Denoyer, Gino A Cortopassi
Purpose: Benzalkonium chloride (BAK) is the most commonly used eye drop preservative. Benzalkonium chloride has been associated with toxic effects such as "dry eye" and trabecular meshwork degeneration, but the underlying biochemical mechanism of ocular toxicity by BAK is unclear. In this study, we propose a mechanistic basis for BAK's adverse effects. Method: Mitochondrial O2 consumption rates of human corneal epithelial primary cells (HCEP), osteosarcoma cybrid cells carrying healthy (control) or Leber hereditary optic neuropathy (LHON) mutant mtDNA [11778(G>A)], were measured before and after acute treatment with BAK...
April 1, 2017: Investigative Ophthalmology & Visual Science
https://www.readbyqxmd.com/read/28442688/ocular-surface-and-external-filtration-surgery-mutual-relationships
#2
Christophe Baudouin
There is a large body of evidence from clinical and experimental studies indicating that the long-term use of topical drugs may induce ocular surface changes, causing ocular discomfort, dry eye, conjunctival inflammation, subconjunctival fibrosis, corneal surface impairment, and, as a consequence of chronic ocular surface changes, the potential risk of failure for further glaucoma surgery. Subclinical inflammation has also been widely described in patients receiving antiglaucoma treatments for long periods of time, with inflammatory cell infiltration and fibroblast activation in the conjunctiva and subconjunctival space...
2017: Developments in Ophthalmology
https://www.readbyqxmd.com/read/28442380/incidence-and-risk-factors-of-symptomatic-dry-eye-disease-in-asian-malays-from-the-singapore-malay-eye-study
#3
Ryan E K Man, Anuradha R Veerappan, Shu-Pei Tan, Eva K Fenwick, Charumathi Sabanayagam, Jacqueline Chua, Yuan-Yuh Leong, Tien Yin Wong, Ecosse L Lamoureux, Ching-Yu Cheng, Louis Tong
PURPOSE: To evaluate the incidence of symptomatic dry eye disease (SDED) and associated risk factors in a well-characterized cohort of ethnic Malays in Singapore. METHODS: We included 1682 participants (mean age [SD]: 57 [10]years; 55.4% female) without SDED from the Singapore Malay Eye Study (SiMES), a population-based longitudinal study with baseline examination (SiMES-1) conducted between 2004 and 2006, and follow-up examination (SiMES-2) conducted between 2010 and 2013...
April 22, 2017: Ocular Surface
https://www.readbyqxmd.com/read/28441413/langerhans-cells-prevent-subbasal-nerve-damage-and-upregulate-neurotrophic-factors-in-dry-eye-disease
#4
Eun Young Choi, Hyun Goo Kang, Chul Hee Lee, Areum Yeo, Hye Mi Noh, Nayeong Gu, Myoung Joon Kim, Jong Suk Song, Hyeon Chang Kim, Hyung Keun Lee
The functional role of Langerhans cells (LCs) in ocular surface inflammation and nerve damage in dry eye (DE) disease has yet to be determined. This study was performed to investigate this relationship through both clinical study on DE patients and in vivo mouse models with induced DE disease. In a cross-sectional case-control study (54 eyes of DE patients; 34 eyes of control patients), average cell density, area, and process length of LCs were measured using confocal microscopy. Data were analyzed to determine whether changes in LCs are correlated with subbasal nerve plexus (SNP) parameters (nerve density, beading, and tortuosity)...
2017: PloS One
https://www.readbyqxmd.com/read/28441078/comparison-of-0-3-hypotonic-and-isotonic-sodium-hyaluronate-eye-drops-in-the-treatment-of-experimental-dry-eye
#5
Ying Li, Lian Cui, Hyo Seok Lee, Yeon Soo Kang, Won Choi, Kyung Chul Yoon
PURPOSE: To compare the efficacy of 0.3% hypotonic and isotonic sodium hyaluronate (SH) eye drops in the treatment of experimental dry eye. METHODS: Experimental dry eye was established in female C57BL/6 mice by subcutaneous scopolamine injection and an air draft. The mice were divided into three groups (n = 15): control, preservative-free 0.3% isotonic SH, and preservative-free 0.3% hypotonic SH. The tear volume, tear film break-up time, and corneal fluorescein staining scores were measured 5 and 10 days after treatment...
April 25, 2017: Current Eye Research
https://www.readbyqxmd.com/read/28441068/a-controlled-randomized-double-blind-study-to-evaluate-the-safety-and-efficacy-of-chitosan-n-acetylcysteine-for-the-treatment-of-dry-eye-syndrome
#6
Doreen Schmidl, René Werkmeister, Semira Kaya, Angelika Unterhuber, Katarzyna J Witkowska, Renate Baumgartner, Sonja Höller, Maria O'Rourke, Ward Peterson, Annika Wolter, Martin Prinz, Leopold Schmetterer, Gerhard Garhöfer
PURPOSE: This study was designed to evaluate the effect of chitosan-N-acetylcysteine (C-NAC) eye drops on tear film thickness (TFT) in patients with dry eye syndrome (DES). METHODS: This was a controlled, randomized, double-blind clinical investigation with patients assigned to 2 cohorts. In Cohort I, 21 patients were randomized to receive 1 instillation of C-NAC eye drops in 1 eye and placebo (normal saline solution) in the contralateral eye. In Cohort II, 17 patients were randomized to receive C-NAC eye drops once (QD) or twice (BID) daily for 5 days...
April 25, 2017: Journal of Ocular Pharmacology and Therapeutics
https://www.readbyqxmd.com/read/28440253/evaluation-of-meibomian-gland-and-tear-film-changes-in-patients-with-pterygium
#7
Fen Ye, Fen Zhou, Yuan Xia, Xiaomin Zhu, Yan Wu, Zhenping Huang
BACKGROUND: Recent studies have demonstrated that pterygium has a close relationship with dry eye disease. This study is to determine abnormalities in meibomian gland and tear function in patients with pterygium and to assess the relationship between the variables. MATERIALS AND METHODS: Forty eyes from forty patients with primary nasal pterygium and forty eyes from forty volunteers without ocular pathologies were enrolled in this study. Ocular surface disease index scores, meibomian gland expression scores, lid margin abnormality scores, meiboscore, tear film breakup time (BUT), Schirmer test (SIT) value, and the lower tear meniscus height (TMH), tear meniscus depth (TMD), and tear meniscus area (TMA) using Fourier domain optical coherence were performed...
March 2017: Indian Journal of Ophthalmology
https://www.readbyqxmd.com/read/28437595/natural-history-and-predictors-of-progression-to-sj%C3%A3-gren-s-syndrome-among-participants-of-the-sicca-registry
#8
Caroline H Shiboski, Alan N Baer, Stephen C Shiboski, Mi Lam, Stephen Challacombe, Hector E Lanfranchi, Morten Schiødt, Penelope Shirlaw, Muthiah Srinivasan, Hisanori Umehara, Frederick B Vivino, Esen Akpek, Vatinee Bunya, Cristina F Vollenweider, John S Greenspan, Troy E Daniels, Lindsey A Criswell
BACKGROUND/PURPOSE: To explore changes in the phenotypic features of Sjoögren's syndrome (SS), and in SS status among participants in the Sjoögren's International Collaborative Clinical Alliance (SICCA) registry over a 2 to 3-year interval. METHODS: All participants in the SICCA registry who were found to have any objective measures of salivary hypofunction, dry eye, focal lymphocytic sialadenitis in minor salivary gland biopsy, or anti-SSA/B antibodies, were recalled over a window of 2 to 3 years after their baseline examinations to repeat all clinical examinations and specimen collections to determine whether there was any change in phenotypic features and in SS status...
April 24, 2017: Arthritis Care & Research
https://www.readbyqxmd.com/read/28435213/comparison-of-0-2-and-0-18-hyaluronate-eye-drops-in-patients-with-moderate-to-severe-dry-eye-with-keratitis-or-keratoconjunctivitis
#9
Dorothea Groß, Marc Childs, Jean-Marie Piaton
PURPOSE: Comparison of efficacy and safety of 0.2% and 0.18% hyaluronic acid (HA) eye drops three times a day (tid) in patients with moderate to severe dry eye disease, related to keratitis or keratoconjunctivitis. PATIENTS AND METHODS: Prospective, multicenter, randomized, single-masked, phase IIIb, noninferiority study (0.2% HA vs 0.18% HA) in two parallel groups over a period of 84 days. N=70 patients were evaluated. Primary efficacy outcome was ocular surface (OS) staining change on day 35 (D35), compared to baseline...
2017: Clinical Ophthalmology
https://www.readbyqxmd.com/read/28433820/effects-of-punctal-occlusion-on-global-tear-proteins-in-patients-with-dry-eye
#10
Louis Tong, Lei Zhou, Roger Beuerman, Susan Simonyi, David A Hollander, Michael E Stern
PURPOSE: To investigate effects of punctal occlusion on global tear protein levels in patients with dry eye. METHODS: In this prospective, longitudinal, single-center study, nonabsorbable punctal plugs were inserted bilaterally into the lower punctum of 30 patients with moderate dry eye. Dry eye symptoms, fluorescein corneal staining, Schirmer I test, tear film break-up time, and safety were assessed in the more severe eye. Tear proteins at weeks 1 and 3 were quantified by iTRAQ relative to baseline preocclusion levels...
April 19, 2017: Ocular Surface
https://www.readbyqxmd.com/read/28431436/enhanced-tearing-by-electrical-stimulation-of-the-anterior-ethmoid-nerve
#11
Mark Brinton, Andrea L Kossler, Zara M Patel, James Loudin, Manfred Franke, Christopher N Ta, Daniel Palanker
Purpose: Electrical neurostimulation enhances tear secretion, and can be applied to treatment of dry eye disease. Using a chronic implant, we evaluate the effects of stimulating the anterior ethmoid nerve on the aqueous, lipid, and protein content of secreted tears. Methods: Neurostimulators were implanted beneath the nasal mucosa in 13 New Zealand white rabbits. Stimulations (2.3-2.8 mA pulses of 75-875 μs in duration repeated at 30-100 Hz for 3 minutes) were performed daily, for 3 weeks to measure changes in tear volume (Schirmer test), osmolarity (TearLab osmometer), lipid (Oil-Red-O staining), and protein (BCA assay, mass spectrometry)...
April 1, 2017: Investigative Ophthalmology & Visual Science
https://www.readbyqxmd.com/read/28428095/sjogren-s-syndrome-clinical-aspects
#12
Frederick B Vivino
Sjogren's syndrome (SS) is the 2nd most common chronic autoimmune rheumatic disease and associated with a high burden of illness. Morbidity arises not only from untreated xerostomia and keratoconjunctivitis sicca but also from extra-glandular manifestations and the development of non-Hodgkin's B cell lymphomas. Proper diagnosis of SS requires objective evidence of dry eyes and/or objective evidence of dry mouth and proof of autoimmunity. The recent development of new international classification criteria and clinical practice guidelines for SS should not only enhance the existing standards of care but also facilitate further studies to improve future diagnosis and management...
April 17, 2017: Clinical Immunology: the Official Journal of the Clinical Immunology Society
https://www.readbyqxmd.com/read/28427352/point-of-sampling-detection-of-zika-virus-within-a-multiplexed-kit-capable-of-detecting-dengue-and-chikungunya
#13
Ozlem Yaren, Barry W Alto, Priyanka V Gangodkar, Shatakshi R Ranade, Kunal N Patil, Kevin M Bradley, Zunyi Yang, Nikhil Phadke, Steven A Benner
BACKGROUND: Zika, dengue, and chikungunya are three mosquito-borne viruses having overlapping transmission vectors. They cause diseases having similar symptoms in human patients, but requiring different immediate management steps. Therefore, rapid (< one hour) discrimination of these three viruses in patient samples and trapped mosquitoes is needed. The need for speed precludes any assay that requires complex up-front sample preparation, such as extraction of nucleic acids from the sample...
April 20, 2017: BMC Infectious Diseases
https://www.readbyqxmd.com/read/28426869/expression-profiling-of-nonpolar-lipids-in-meibum-from-patients-with-dry-eye-a-pilot-study
#14
Jianzhong Chen, Jeremy K Keirsey, Kari B Green, Kelly K Nichols
Purpose: The purpose of this investigation was to characterize differentially expressed lipids in meibum samples from patients with dry eye disease (DED) in order to better understand the underlying pathologic mechanisms. Methods: Meibum samples were collected from postmenopausal women with DED (PW-DED; n = 5) and a control group of postmenopausal women without DED (n = 4). Lipid profiles were analyzed by direct infusion full-scan electrospray ionization mass spectrometry (ESI-MS)...
April 1, 2017: Investigative Ophthalmology & Visual Science
https://www.readbyqxmd.com/read/28425227/primary-sj%C3%A3-gren-s-syndrome-in-patients-with-celiac-disease
#15
Funda Erbasan, Deniz Turgut Çoban, Uğur Karasu, Yeşim Çekin, Bayram Yeşil, Ayhan Hilmi Çekin, Dinç Süren, Mustafa Ender Terzioğlu
BACKGROUND/AIM: Many autoimmune diseases occur concomitantly with celiac disease (CD). We aimed to determine the frequency of Sjögren's syndrome (SS) in CD patients based on SS-specific serology verified by minor labial salivary biopsy. MATERIALS AND METHODS: Eight-two patients with CD were included in the study. After examination for objective evidence of sicca complex, all patients were tested for serological presence of rheumatoid factor (RF) and antinuclear antibodies (ANAs) and for ANA profile...
April 18, 2017: Turkish Journal of Medical Sciences
https://www.readbyqxmd.com/read/28424547/omega-3-fatty-acid-supplementation-can-improve-both-symptoms-and-signs-of-dry-eye-disease
#16
COMMENT
Jae-Woo Kwon, Sang Beom Han
No abstract text is available yet for this article.
2017: Clinical Interventions in Aging
https://www.readbyqxmd.com/read/28422804/a-review-of-ocular-graft-versus-host-disease
#17
Saleha Z Munir, James Aylward
: Graft-versus-host disease (GVHD) is a major complication that occurs following allogeneic hematopoietic stem cell transplantation, which is a potential curative therapy used in a variety of malignant or benign hematological diseases. Graft-versus-host disease primarily occurs in many organs, but most notably in the skin, lungs, gastrointestinal tract, liver, eyes, mucosa, and musculoskeletal system. Ocular manifestations of GVHD may precede other systemic GVHD findings, and it may be a poor prognosis for mortality...
May 2017: Optometry and Vision Science: Official Publication of the American Academy of Optometry
https://www.readbyqxmd.com/read/28422418/factors-associated-with-mucosal-dryness-in-multiple-regions-and-skin-a-web-based-study-in-women
#18
Kayoko Ito, Kiyoshi Takamatsu, Kaname Nohno, Aki Sugano, Saori Funayama, Kouji Katsura, Noboru Kaneko, Mariko Ogawa, Jukka H Meurman, Makoto Inoue
AIM: We hypothesized that feeling mucosal dryness in one body region and the skin may be associated with dryness in other regions and that there are common background factors for dryness. In an earlier web-based survey, we reported prevalence figures of dry eyes, nose, mouth, skin, and vagina. In the present study, additional analyses were made to investigate the factors associated with dryness in each region, and simultaneous dryness in multiple regions. METHODS: A web-based questionnaire was completed by 310 Japanese women...
April 19, 2017: Journal of Obstetrics and Gynaecology Research
https://www.readbyqxmd.com/read/28420926/femto-lasik-the-recent-innovation-in-laser-assisted-refractive-surgery
#19
Zubair Shahid Bashir, Muhammad Hassaan Ali, Ayesha Anwar, Muhammad Hammad Ayub, Nadeem Hafeez Butt
Femtosecond laser has been introduced in refractive surgery to create a thin-hinged corneal flap without using any blade. The current review was planned to analyse and compare femtosecond-assisted laser in-situ keratomileusis (LASIK), the latest refractive procedure, with conventional techniques in refractive surgery. The analysis showed that femtosecond-assisted LASIK yielded more predictable corneal flaps, lesser ocular aberrations, better uncorrected visual acuity, lesser variations in intraocular pressure (IOP) and fewer chances of developing dry eyes...
April 2017: JPMA. the Journal of the Pakistan Medical Association
https://www.readbyqxmd.com/read/28419396/correlation-between-mesopic-retinal-sensitivity-and-optical-coherence-tomographic-metrics-of-the-outer-retina-in-patients-with-non-atrophic-dry-age-related-macular-degeneration
#20
Tudor C Tepelus, Amir H Hariri, Mayss Al-Sheikh, SriniVas R Sadda
BACKGROUND AND OBJECTIVE: To determine the correlation between mesopic retinal sensitivity and optical coherence tomographic metrics of the outer retina in patients with intermediate age-related macular degeneration (AMD). PATIENTS AND METHODS: Participants with nonatrophic dry AMD underwent mesopic MP-3 microperimetry (Nidek, Padova, Italy) and both Nidek and Cirrus (Carl Zeiss Meditec, Dublin, CA) spectral-domain optical coherence tomography (SD-OCT). The volume of the outer retinal layers was measured on the Nidek SD-OCT scans using the automatic segmentation algorithm of Navis-EX software...
April 1, 2017: Ophthalmic Surgery, Lasers & Imaging Retina
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