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https://www.readbyqxmd.com/read/29786830/blue-light-filtering-intraocular-lenses-iols-for-protecting-macular-health
#1
REVIEW
Laura E Downie, Ljoudmila Busija, Peter R Keller
BACKGROUND: An intraocular lens (IOL) is a synthetic lens that is surgically implanted within the eye following removal of the crystalline lens, during cataract surgery. While all modern IOLs attenuate the transmission of ultra-violet (UV) light, some IOLs, called blue-blocking or blue-light filtering IOLs, also reduce short-wavelength visible light transmission. The rationale for blue-light filtering IOLs derives primarily from cell culture and animal studies, which suggest that short-wavelength visible light can induce retinal photoxicity...
May 22, 2018: Cochrane Database of Systematic Reviews
https://www.readbyqxmd.com/read/29785414/topical-nasal-decongestant-oxymetazoline-0-05-provides-relief-of-nasal-symptoms-for-12-hours
#2
H M Druce, D L Ramsey, S Karnati, A N Carr
BACKGROUND: Nasal congestion, often referred to as stuffy nose or blocked nose is one of the most prevalent and bothersome symptoms of an upper respiratory tract infection. Oxymetazoline, a widely used intranasal decongestant, offers fast symptom relief, but little is known about the duration of effect. METHODOLOGY: The results of 2 randomized, double-blind, vehicle-controlled, single-dose, parallel, clinical studies (Study 1, n=67; Study 2, n=61) in which the efficacy of an oxymetazoline (0...
May 22, 2018: Rhinology
https://www.readbyqxmd.com/read/29784431/-continuous-quadratus-lumborum-type-ii-block-in-partial-nephrectomy
#3
Rita Graça, Pilar Miguelez, José Miguel Cardoso, Miguel Sá, Joana Brandão, Célia Pinheiro, Duarte Machado
BACKGROUND AND OBJECTIVES: Quadratus lumborum block was first described in 2007 and currently there are descriptions of its achievement through four different injection points. This blockage provides abdominal wall and visceral analgesia, and one of its mechanisms is the dispersion of the local anesthetic into the paravertebral space. We describe the performance of a continuous quadratus lumborum type II block for postoperative analgesia in a partial nephrectomy. CASE REPORT: A 64-year-old woman, scheduled for partial left laparoscopic nephrectomy...
May 18, 2018: Revista Brasileira de Anestesiologia
https://www.readbyqxmd.com/read/29782453/a-robust-approach-to-implementing-fascia-iliaca-compartment-nerve-blocks-in-hip-fracture-patients
#4
Mark G Williams, Zachary Jeffery, Henry W Corner, John Charity, Marina Quantick, Natalie Sartin
BACKGROUND: A clear imperative exists to optimize the preoperative pain management of hip fracture patients. Increasingly, fascia iliaca compartment blocks (FICBs) are being effectively utilized as an adjunct to oral analgesia in the emergency department. PURPOSE: We investigated the feasibility, safety, and delivery rate when junior doctors and specialist nurses are trained in FICBs delivery, alongside the introduction of a step-by-step proforma. METHODS: We conducted a retrospective study of hip fractures patients presenting preinterventions (n = 138) between October and December 2014 and postinterventions (n = 246) between April and August 2015...
May 2018: Orthopaedic Nursing
https://www.readbyqxmd.com/read/29782224/efficacy-and-safety-of-dupilumab-in-glucocorticoid-dependent-severe-asthma
#5
Klaus F Rabe, Parameswaran Nair, Guy Brusselle, Jorge F Maspero, Mario Castro, Lawrence Sher, Hongjie Zhu, Jennifer D Hamilton, Brian N Swanson, Asif Khan, Jingdong Chao, Heribert Staudinger, Gianluca Pirozzi, Christian Antoni, Nikhil Amin, Marcella Ruddy, Bolanle Akinlade, Neil M H Graham, Neil Stahl, George D Yancopoulos, Ariel Teper
Background Dupilumab is a fully human anti-interleukin-4 receptor α monoclonal antibody that blocks both interleukin-4 and interleukin-13 signaling. Its effectiveness in reducing oral glucocorticoid use in patients with severe asthma while maintaining asthma control is unknown. Methods We randomly assigned 210 patients with oral glucocorticoid-treated asthma to receive add-on dupilumab (at a dose of 300 mg) or placebo every 2 weeks for 24 weeks. After a glucocorticoid dose-adjustment period before randomization, glucocorticoid doses were adjusted in a downward trend from week 4 to week 20 and then maintained at a stable dose for 4 weeks...
May 21, 2018: New England Journal of Medicine
https://www.readbyqxmd.com/read/29780936/clinical-and-pathological-correlation-of-cotton-wool-spots-in-secondary-angle-closure-glaucoma
#6
Anand Bhatt, Christine Nguyen, Sameh Mosaed, Don Minckler
Purpose: Cotton Wool Spots (CWS) are a commonly described retinal finding in the posterior segment associated with an extensive number of systemic diseases. The appearance of a CWS in the setting of glaucoma has rarely been reported and has not been correlated with pathology to localized loss of the nerve fiber layer previously. In this case report, we augment a previous report of an 18 year old female with a diagnosis of low grade ciliary body melanoma. This patient experienced eventual mechanical angle closure with a CWS appearing in the posterior pole in the setting of acute elevation of intraocular pressure (IOP)...
June 2018: American Journal of Ophthalmology Case Reports
https://www.readbyqxmd.com/read/29779893/a-new-risk-score-for-ventricular-tachyarrhythmia-in-acute-myocardial-infarction-with-preserved-left-ventricular-ejection-fraction
#7
Seung Hun Lee, Myung Ho Jeong, Ju Han Kim, Min Chul Kim, Doo Sun Sim, Young Joon Hong, Youngkeun Ahn, Shung Chull Chae, In Whan Seong, Jong Sun Park, Jei Keon Chae, Seung Ho Hur, Kwang-Soo Cha, Hyo-Soo Kim, Hyeon Cheol Gwon, Ki Bae Seung, Seung Woon Rha
BACKGROUND: Ventricular tachycardia or fibrillation (VT/VF) is a major cause of sudden cardiac death after acute myocardial infarction (AMI). This study aims to investigate the clinical characteristics and outcomes of VT/VF, to identify the variables associated with VT/VF, and to construct a new scoring system. METHODS: Patients with relatively preserved left ventricular ejection fraction (LVEF) (≥40%) included in the Korea Acute Myocardial Infarction Registry-National Institutes of Health registry were enrolled in this study...
May 17, 2018: Journal of Cardiology
https://www.readbyqxmd.com/read/29778460/wnt-2b-in-the-intermediate-hyperpallium-apicale-of-the-telencephalon-is-critical-for-the-thyroid-hormone-mediated-opening-of-the-sensitive-period-for-filial-imprinting-in-domestic-chicks-gallus-gallus-domesticus
#8
Shinji Yamaguchi, Naoya Aoki, Toshiya Matsushima, Koichi J Homma
Filial imprinting is the behavior observed in chicks during the sensitive or critical period of the first 2-3 days after hatching; however, after this period they cannot be imprinted when raised in darkness. Our previous study showed that temporal augmentation of the endogenous thyroid hormone 3,5,3'-triiodothyronine (T3 ) in the telencephalon, by imprinting training, starts the sensitive period just after hatching. Intravenous injection of T3 enables imprinting of chicks on days 4 or 6 post-hatching, even when the sensitive period has ended...
May 17, 2018: Hormones and Behavior
https://www.readbyqxmd.com/read/29776484/corticotropin-releasing-factor-in-the-brain-and-blocking-spinal-descending-signals-induce-hyperalgesia-in-the-latent-sensitization-model-of-chronic-pain
#9
Wenling Chen, Yvette Taché, Juan Carlos Marvizón
Latent sensitization is a model of chronic pain in which an injury triggers a period of hyperalgesia followed by an apparent recovery, but in which pain sensitization persists but is suppressed by opioid and adrenergic receptors. One important characteristic of latent sensitization is that hyperalgesia can be triggered by acute stress. To determine whether the effect of stress is mimicked by the activation of corticotropin-releasing factor (CRF) signaling in the brain, rats with latent sensitization induced by injecting complete Freund's adjuvant (CFA, 50 μl) in one hind paw were given an intracerebroventricular (i...
June 15, 2018: Neuroscience
https://www.readbyqxmd.com/read/29775312/limits-of-directed-self-assembly-in-block-copolymers
#10
Karim Raafat Gadelrab, Yi Ding, Ricardo Pablo-Pedro, Hsieh Chen, Kevin W Gotrik, David G Tempel, Caroline A Ross, Alfredo Alexander-Katz
Understanding the conditions under which defects appear in self-assembling soft-matter systems is of great importance, for example, in the development of block-copolymer (BCP) nanolithography. Here, we explore the limits of directed self-assembly of BCPs by deliberately adding random imperfections in the template. Our results show that defects emerge due to local "shear-like" distortions of the polymer-template system, a new mechanism that is fundamentally different from canonical mechanisms of 2D melting...
May 18, 2018: Nano Letters
https://www.readbyqxmd.com/read/29774901/hierarchical-nanopores-formed-by-block-copolymer-lithography-on-the-surfaces-of-different-materials-pre-patterned-by-nanosphere-lithography
#11
Katharina Brassat, Daniel Kool, Julius Bürger, Jörg K N Lindner
Bottom-up patterning techniques allow for the creation of surfaces with ordered arrays of nanoscale features on large areas. Two bottom-up techniques suitable for the formation of regular nanopatterns on different length scales are nanosphere lithography (NSL) and block copolymer (BCP) lithography. In this paper it is shown that NSL and BCP lithography can be combined to easily design hierarchically nanopatterned surfaces of different materials. Nanosphere lithography is used for the pre-patterning of surfaces with antidots, i...
May 18, 2018: Nanoscale
https://www.readbyqxmd.com/read/29774348/a-new-series-of-co-ni-zn-and-cd-metal-organic-architectures-driven-by-an-unsymmetrical-biphenyl-tricarboxylic-acid-hydrothermal-assembly-structural-features-and-properties
#12
Jin-Zhong Gu, Yan Cai, Zi-Yue Qian, Min Wen, Zi-Fa Shi, Dong-Yu Lv, Alexander M Kirillov
This study reports the hydrothermal synthesis of a novel series of twelve coordination compounds, namely, {[Cd(μ-Hnbtc)(H2O)4]·H2O}n (1), [Zn2(μ-Hnbtc)2(phen)2]·2H2O (2), [Zn(Hnbtc)(phen)2(H2O)]·4.5H2O (3), [Ni(Hnbtc)(phen)2(H2O)]·6H2O (4), [Zn2(μ-Hnbtc)2(2,2'-bipy)2]·2H2O (5), [Cd3(μ5-nbtc)(μ6-nbtc)(2,2'-bipy)2(H2O)]n (6), {[Zn3(μ3-nbtc)2(phen)3(H2O)2]·4H2O} (7), [Co(H2O)6][Co2(nbtc)2(μ-4,4'-bipy)(4,4'-bipy)2(H2O)6]·8H2O (8), {[Ni3(μ4-nbtc)2(μ-4,4'-bipy)2.5(μ-H2O)(H2O)3]·4H2O}n (9), {[Cd2(μ4-nbtc)(μ-OH)(2,2'-bipy)2]·H2O}n (10), [Cd2(μ4-nbtc)(μ-OH)(phen)2(H2O)]n (11), and {[Zn2(μ5-nbtc)(μ3-OH)(μ-4,4'-bipy)]·4,4'-bipy·H2O}n (12), which are derived from 3'-nitro-biphenyl-2,4,4'-tricarboxylic acid (H3nbtc) as a virtually unexplored building block...
May 18, 2018: Dalton Transactions: An International Journal of Inorganic Chemistry
https://www.readbyqxmd.com/read/29774208/long-term-outcome-of-transcatheter-device-closure-of-perimembranous-ventricular-septal-defects
#13
Krishna D Mandal, Danyan Su, Yusheng Pang
Background: Ventricular septal defect is a common congenital heart defect. Transcatheter closure of perimembranous ventricular septal defect (pmVSD) is an effective method alternative to surgical closure. The aim of the study is to evaluate the procedural result, early and long-term follow-up outcome of transcatheter closure of pmVSD. Methods: From January 2005 to December 2016, we retrospectively identified the patients who underwent transcatheter device closure of pmVSD. All patients underwent transthoracic echocardiography (TTE) and electrocardiogram (ECG) before and after the procedure...
2018: Frontiers in Pediatrics
https://www.readbyqxmd.com/read/29773995/hypoxia-reoxygenation-of-rat-renal-arteries-impairs-vasorelaxation-via-modulation-of-endothelium-independent-sgc-cgmp-pkg-signaling
#14
Diana Braun, Christa Zollbrecht, Stefanie Dietze, Rudolf Schubert, Stefan Golz, Holger Summer, Pontus B Persson, Mattias Carlström, Marion Ludwig, Andreas Patzak
Ischemia/reperfusion injury holds a key position in many pathological conditions such as acute kidney injury and in the transition to chronic stages of renal damage. We hypothesized that besides a reported disproportional activation of vasoconstrictor response, hypoxia/reoxygenation (H/R) adversely affects endothelial dilatory systems and impairs relaxation in renal arteries. Rat renal interlobar arteries were studied under isometric conditions. Hypoxia was induced by application of 95% N2 , 5% CO2 for 60 min to the bath solution, followed by a 10 min period of reoxygenation (95% O2 , 5% CO2 )...
2018: Frontiers in Physiology
https://www.readbyqxmd.com/read/29773947/efficacy-safety-and-pharmacokinetics-of-budesonide-formoterol-fumarate-delivered-via-metered-dose-inhaler-using-innovative-co-suspension-delivery-technology-in-patients-with-moderate-to-severe-copd
#15
Edward M Kerwin, Thomas M Siler, Samir Arora, Patrick Darken, Earl Rose, Colin Reisner
Purpose: This study investigated the efficacy, safety, and pharmacokinetics of the inhaled corticosteroid/long-acting β2 -agonist fixed-dose combination budesonide/formoterol fumarate (BFF) metered dose inhaler (MDI), compared with the monocomponents budesonide (BD) MDI and formoterol fumarate (FF) MDI, in patients with moderate-to-severe COPD. Materials and methods: In this Phase IIb, randomized, double-blind, four-period, five-treatment, incomplete-block, crossover study (NCT02196077), all patients received BFF MDI 320/9...
2018: International Journal of Chronic Obstructive Pulmonary Disease
https://www.readbyqxmd.com/read/29773275/periodic-fever-syndromes
#16
REVIEW
Helen J Lachmann
Periodic fever syndromes are autoinflammatory diseases. The majority present in infancy or childhood and are characterised by recurrent episodes of fever and systemic inflammation that occur in the absence of autoantibody production or identifiable infection. The best recognised disorders include CAPS, FMF, TRAPS and MKD. Understanding the molecular pathogenesis of these disorders provides unique insights into the regulation of innate immunity. Diagnosis relies on clinical acumen and is supported by genetic testing...
August 2017: Best Practice & Research. Clinical Rheumatology
https://www.readbyqxmd.com/read/29772899/honeycomb-like-plga-b-peg-structure-creation-with-t-junction-micro-droplets
#17
Merve Gultekinoglu, Xinyue Jiang, Cem Bayram, Kezban Ulubayram, Mohan Edirisinghe
Amphiphilic block copolymers are widely used in science owing to their versatile properties. In this study, amphiphilic block copolymer poly(lactic-co-glycolic acid)-block-poly(ethylene glycol) (PLGA-b-PEG) was used to create micro droplets in a T-junction microfluidic device with a well-defined geometry. In order to compare interfacial characteristics of micro droplets, dichloromethane (DCM) and chloroform were used to prepare PLGA-b-PEG solution as an oil phase. In the T-junction device water and oil phases were manipulated at variable flow rates from 50 µL/min to 300 µL/min by increments of 50 µL/min...
May 18, 2018: Langmuir: the ACS Journal of Surfaces and Colloids
https://www.readbyqxmd.com/read/29772721/the-effect-of-rod-shaped-long-period-stacking-ordered-phases-evolution-on-corrosion-behavior-of-mg-95-33-zn%C3%A2-y-2-67-alloy
#18
Jingfeng Wang, Weiyan Jiang, Shengfeng Guo, Yang Li, Yao Ma
The morphology evolution of long-period stacking ordered (LPSO) phases on corrosion behavior of Mg95.33 Zn₂Y2.67 alloy is investigated systematically during as-cast, pre-extrusion heat-treated, as-extruded and post-extrusion heat-treated conditions. The second phases in the as-cast alloy are only LPSO phases with a few Y particles. The pre-extrusion heat treatment changed LPSO phases from blocks into a rudimentary rod shape with lamellar structure, subsequently into fine fragments by extrusion, and then into a regular rod shape with lamellar structure followed by post-extrusion heat treatment...
May 16, 2018: Materials
https://www.readbyqxmd.com/read/29771804/preemptive-analgesia-decreases-pain-following-anorectal-surgery-a-prospective-randomized-double-blinded-placebo-controlled-trial
#19
Justin T Van Backer, Matthew R Jordan, Danielle T Leahy, Jesse S Moore, Peter Callas, Timothy Dominick, Peter A Cataldo
BACKGROUND: Postoperative pain is a frequent cause for delayed discharge following outpatient procedures, including anorectal surgery. Both central and peripheral pain receptor sensitization are thought to contribute to postoperative pain. Blocking these receptors and preempting sensitization prevents hyperalgesia leading to lower pain medication requirements. Studies in the orthopedic, urologic, and gynecologic literature support this practice, but the use of preemptive analgesia in anorectal surgery is understudied...
May 15, 2018: Diseases of the Colon and Rectum
https://www.readbyqxmd.com/read/29769505/efficacy-of-0-5-hyperbaric-bupivacaine-with-dexamethasone-versus-0-5-hyperbaric-bupivacaine-alone-in-spinal-anaesthesia-for-patient-undergoing-lower-abdominal-urological-and-lower-limb-orthopedic-surgeries
#20
M M Haque, M A Aleem, F H Haque, A B Siddique, R Afrose
Spinal anaesthesia with local anaesthetics has limited duration. Different additives have been used to prolong spinal anaesthesia. The aim of this study was to determine the efficacy of adding dexamethasone to bupivacaine in spinal anaesthesia specially whether it would prolong the duration of sensory block/ surgical analgesia and post-operative analgesia/pain free period or not. This randomized, prospective, double-blind, clinical study was conducted in the Department of Anaesthesia, Analgesia and Critical Care of Combined Military Hospital, Chittagong from October 2016 to August 2017...
April 2018: Mymensingh Medical Journal: MMJ
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