26 research outputs found
Unilateral presentation of Vogt-Koyanagi-Harada syndrome
Purpose: To report a case of acute Vogt-Koyanagi-Harada (VKH) disease with unilateral clinical manifestations followed by late fellow eye involvement. Case Report: This case report reviews the 12-month follow-up observation of a 44-year old woman who presented to the emergency department with unilateral progressive and painless visual blurring. Ophthalmoscopic findings, best-corrected visual acuity (BCVA), fluorescein angiography (FAG), enhanced-depth optical coherence tomography (EDI-OCT), indocyanine green angiography, and response to treatment were evaluated. Her BCVA was 20/50 (logMAR: 0.4) in the right eye and 20/20 (logMAR: 0) in the left eye. Eye examination revealed optic disc swelling and multiple serous retinal detachments in the right eye and a normal left eye. She had headache, dysacusia, and mild hearing problem. Her past ocular and drug histories were unremarkable. Retinal imaging revealed characteristic features of VKH in the right eye. All laboratory testing results were inconclusive. VA and OCT findings significantly improved following the treatment with methylprednisolone 1 g/day continued by tapering dose of oral prednisolone. Two months after the presentation and during prednisolone tapering, VA of the left eye decreased and fundus examination revealed multiple serous retinal detachments in this eye. Conclusion: Ophthalmologists should recognize unilateral and asymmetrical VKH disease with subtle systemic involvement. © 2020 JOURNAL OF OPHTHALMIC AND VISION RESEARCH | PUBLISHED BY KNOWLEDGE
Enhanced optical properties due to indium incorporation in zinc oxide nanowires
Indium-doped zinc oxide nanowires grown by vapor-liquid-solid technique with 1.6 at. % indium
content show intense room temperature photoluminescence (PL) that is red shifted to 20 meV from
band edge. We report on a combination of nanowires and nanobelts-like structures with enhanced
optical properties after indium doping. The near band edge emission shift gives an estimate for the
carrier density as high as 5.5 1019 cm3 for doped nanowires according to Mott’s critical density
theory. Quenching of the visible green peak is seen for doped nanostructures indicating lesser oxygen
vacancies and improved quality. PL and transmission electron microscopy measurements con-
firm indium doping into the ZnO lattice, whereas temperature dependent PL data give an
estimation of the donor and acceptor binding energies that agrees well with indium doped nanowires.
This provides a non-destructive technique to estimate doping for 1D structures as compared
to the traditional FET approach. Furthermore, these indium doped nanowires can be a potential
candidate for transparent conducting oxides applications and spintronic devices with controlled growth mechanism
The Consumption of Synbiotic Bread Containing Lactobacillus sporogenes and Inulin Affects Nitric Oxide and Malondialdehyde in Patients with Type 2 Diabetes Mellitus: Randomized, Double-Blind, Placebo-Controlled Trial
Objectives: To our knowledge, no reports are available indicating the effects of synbiotic bread consumption on nitric oxide (NO), biomarkers of oxidative stress, and liver enzymes among patients with type 2 diabetes mellitus (T2DM). This study was performed to determine the effects of the daily consumption of synbiotic bread on NO, biomarkers of oxidative stress, and liver enzymes in patients with T2DM. Methods: This randomized, double-blind, placebo-controlled trial was performed among 81 patients with diabetes, aged 35�70 years old. After a 2-week run-in period, patients were randomly divided into 3 groups: group A (n = 27) received synbiotic bread containing viable and the heat-resistant probiotic Lactobacillus sporogenes (1 � 108 CFU) and 0.07 g inulin per 1 g, group B (n = 27) received probiotic bread containing Lactobacillus sporogenes (1 � 108 CFU), and group C (n = 27) received control bread for 8 weeks. Patients were asked to consume the synbiotic, probiotic, or control breads 3 times a day in 40 g packages for a total of 120 g/day. Fasting blood samples were taken at baseline and after an 8-week intervention for quantificationof related markers. Results: After 8 weeks, the consumption of synbiotic bread compared to the probiotic and control breads resulted in a significant rise in plasma NO (40.6 ± 34.4 vs 18.5 ± 36.2 and �0.8 ± 24.5 µmol/L, respectively, p < 0.001) and a significant reduction in malondialdehyde (MDA) levels (�0.7 ± 0.7 vs 0.6 ± 1.7 and 0.5 ± 1.5 µmol/L, respectively, p = 0.001). We did not find any significant effect of the synbiotic bread consumption on plasma total antioxidant capacity (TAC), plasma glutathione (GSH), catalase, serum liver enzymes, calcium, iron, magnesium levels, and blood pressure compared to the probiotic and control breads. Conclusion: In conclusion, consumption of the synbiotic bread for 8 weeks among patients with T2DM had beneficial effects on plasma NO and MDA levels; however, it did not affect plasma TAC, GSH, catalase levels, serum liver enzymes, calcium, iron, magnesium levels, and blood pressure. © 2016, © American College of Nutrition Published by Taylor & Francis Group, LLC
Electrified falling film flow over topography in the presence of a finite electrode
The effect of an electric field on a liquid film flowing down an inclined wall is examined. The liquid film is treated as a perfect conductor and the air above the film is treated as a perfect dielectric. The electric field is created by a single or periodically repeated electrode of arbitrary shape charged to establish a prescribed potential difference between itself and the liquid-film surface. The steady deformation of the free surface in the presence of the electric field is computed first on the assumption of a thin film and next within the Stokes-flow regime. Calculations are performed for flow over a plane wall and over a step of asymptotically small height. In the latter case, the focused electric field obtained by positioning a circular electrode directly above the step is found to eliminate the capillary ridge identified by previous authors without significantly disrupting the flow away from the step. This result is confirmed numerically for Stokes flow over a step of arbitrary height using the boundary-element method