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https://www.readbyqxmd.com/read/29342439/review-of-ophthalmology-medical-professional-liability-claims-in-the-united-states-from-2006-through-2015
#1
Atalie C Thompson, P Divya Parikh, Eleonora M Lad
PURPOSE: To describe characteristics of closed medical professional liability (MPL) claims against ophthalmologists in the United States. DESIGN: Retrospective analysis of MPL claims from 2006-2015. Data were obtained from the Physician Insurers Association of America (PIAA) Data Sharing Project (DSP). Comparison was made between ophthalmology and all healthcare specialties for physician demographics, prevalence and costs associated with closed claims, and resolution of claims...
January 13, 2018: Ophthalmology
https://www.readbyqxmd.com/read/29342267/safety-of-single-dose-primaquine-in-g6pd-deficient-and-g6pd-normal-males-in-mali-without-malaria-an-open-label-phase-1-dose-adjustment-trial
#2
Ingrid Chen, Halimatou Diawara, Almahamoudou Mahamar, Koualy Sanogo, Sekouba Keita, Daouda Kone, Kalifa Diarra, Moussa Djimde, Mohamed Keita, Joelle Brown, Michelle E Roh, Jimee Hwang, Helmi Pett, Maxwell Murphy, Mikko Niemi, Bryan Greenhouse, Teun Bousema, Roly Gosling, Alassane Dicko
Background: The World Health Organization recommendation on the use of single low-dose primaquine (SLD-PQ) to reduce Plasmodium falciparum malaria transmission requires more safety data. Methods: We conducted an open-label, non-randomized, dose-adjustment trial of the safety of three single doses of primaquine in glucose-6-phosphate dehydrogenase (G6PD)-deficient adult males in Mali, followed by an assessment of safety in G6PD-deficient boys ages 11-17 years, and 5-10 years, including G6PD-normal control groups...
January 12, 2018: Journal of Infectious Diseases
https://www.readbyqxmd.com/read/29341931/bioinspired-capsules-based-on-nanocellulose-xyloglucan-and-pectin-the-influence-of-capsule-wall-composition-on-permeability-properties
#3
T Paulraj, A V Riazanova, A J Svagan
Materials based on renewable biopolymers, selective permeability and stimuli-responsive release/loading properties play an important role in biomedical applications. Here, in order to mimic the plant primary cell-wall, microcapsules have been fabricated using cell wall polysaccharides, namely pectin, xyloglucan and cellulose nanofibers. For the first time, a large amount of xyloglucan was successfully included in such capsules. These capsules demonstrated stimuli-responsive (ON/OFF) permeability and biocompatibility...
January 13, 2018: Acta Biomaterialia
https://www.readbyqxmd.com/read/29341922/sustained-release-timolol-maleate-loaded-ocusert-based-on-biopolymer-composite
#4
Revathy V Nair, Shefrin S, Akhil Suresh, Anoop K R, Sreeja C Nair
In the present investigation, the effect of timolol maleate loaded ocuserts was studied as an alternative for conventional anti-glaucoma formulation. Ocuserts were prepared using natural polymer sodium alginate and ethyl cellulose. Physico-chemical properties along with drug entrapment efficiency (94-98%), content uniformity (93.1% ± 0.264-98.00% ± 0.321), in vitro drug release (83.42% ± 0.35 at end of 12 hours), ex vivo permeation all showed satisfactory results, which was found to follow zero order kinetics...
January 13, 2018: International Journal of Biological Macromolecules
https://www.readbyqxmd.com/read/29341879/mechanisms-of-mitochondrial-toxicity-of-the-kinase-inhibitors-ponatinib-regorafenib-and-sorafenib-in-human-hepatic-hepg2-cells
#5
Franziska Paech, Cécile Mingard, David Grünig, Vanessa F Abegg, Jamal Bouitbir, Stephan Krähenbühl
Previous studies have shown that certain kinase inhibitors are mitochondrial toxicants. In the current investigation, we determined the mechanisms of mitochondrial impairment by the kinase inhibitors ponatinib, regorafenib, and sorafenib in more detail. In HepG2 cells cultured in galactose and exposed for 24 hours, all three kinase inhibitors investigated depleted the cellular ATP pools at lower concentrations than cytotoxicity occurred, compatible with mitochondrial toxicity. The kinase inhibitors impaired the activity of different complexes of the respiratory chain in HepG2 cells exposed to the toxicants for 24 hours and in isolated mouse liver mitochondria exposed acutely...
January 13, 2018: Toxicology
https://www.readbyqxmd.com/read/29341837/ocular-permeation-of-topical-tazocin-and-its-effectiveness-in-the-treatment-of-pseudomonas-aeruginosa-induced-keratitis-in-rabbits
#6
Sujaya Singh, Renu Agarwal, Zulhilmi Abdul Razak, Robin Ngu, Lwin L Nyein, Sushil Vasudevan, Marina Kapitonova, Azida Juana Kadir, Subrayan Visvaraja
PURPOSE: Pseudomonas aeruginosa is the most common causative organism for contact lens-associated corneal ulcer and is commonly treated with fluoroquinolones. With the emergence of resistant strains, it is important to investigate alternative therapies. Despite well-established efficacy of tazocin against systemic Pseudomonas infections, its topical use for the treatment of Pseudomonas keratitis has not been described, hence this study was aimed to find the ocular permeation of Tazocin and its efficacy in treating keratitis in rabbit eyes...
January 17, 2018: Journal of Ocular Pharmacology and Therapeutics
https://www.readbyqxmd.com/read/29341665/can-hail-and-rain-nucleate-cloud-droplets
#7
Prasanth Prabhakaran, Stephan Weiss, Alexei Krekhov, Alain Pumir, Eberhard Bodenschatz
We present results from moist convection in a mixture of pressurized sulfur hexafluoride (liquid and vapor), and helium (gas) to model the wet and dry components of the Earth's atmosphere. To allow for homogeneous nucleation, we operate the experiment close to critical conditions. We report on the nucleation of microdroplets in the wake of large cold liquid drops falling through the supersaturated atmosphere and show that the homogeneous nucleation is caused by isobaric cooling of the saturated sulfur hexafluoride vapor...
September 22, 2017: Physical Review Letters
https://www.readbyqxmd.com/read/29341026/trends-and-correlates-of-frequency-of-fruit-and-vegetable-consumption-2007-to-2014
#8
Cynthia K Colapinto, John Graham, Sylvie St-Pierre
BACKGROUND: Eating fruit and vegetables is recommended as part of a healthy diet. This study describes trends in the frequency of fruit and vegetable consumption in Canada, the contribution of fruit juice to these trends, and correlates of the frequency of fruit and vegetable consumption. DATA AND METHODS: The data are from the annual Canadian Community Health Survey for the 2007-to-2014 period and pertain to the household population aged 12 or older. Weighted frequencies and cross-tabulations were used to estimate the average frequency of fruit and vegetable consumption by socio-demographic characteristics and body mass index, age-standardized to the 2014 Canadian population...
January 17, 2018: Health Reports
https://www.readbyqxmd.com/read/29340853/do-bioresorbable-polyesters-have-antimicrobial-properties
#9
Lukas Gritsch, Christopher Lovell, Wolfgang H Goldmann, Aldo R Boccaccini
Biodegradable and bioresorbable polyesters (BBPEs) are a widespread class of aliphatic polymers with a plethora of applications in the medical field. Some reports speculate that these polymers have intrinsic antibacterial activity as a consequence of their acidic degradation by-products. The release of organic acids as a result of the hydrolytic degradation of BBPEs in vivo and the resulting pH drop could be an effective inhibitor of the growth of pathogens in the local environment adjacent to BBPE-based devices...
January 16, 2018: Journal of Materials Science. Materials in Medicine
https://www.readbyqxmd.com/read/29340606/leaves-not-roots-or-floral-tissue-are-the-main-site-of-rapid-external-pressure-induced-aba-biosynthesis-in-angiosperms
#10
Feng-Ping Zhang, Frances Sussmilch, David S Nichols, Amanda A Cardoso, Timothy J Brodribb, Scott A M McAdam
Rapid biosynthesis of abscisic acid (ABA) in the leaf, triggered by a decrease in cell volume, is essential for a functional stomatal response to vapour pressure deficit (VPD) in angiosperms. However, it is not known whether rapid biosynthesis of ABA is triggered in other plant tissues as well. Through the application of external pressure to flower, root and leaf tissues, we test whether a reduction in cell volume can trigger rapid increases in ABA levels across plant body in two species Solanum lycopersicum and Passiflora tarminiana...
January 11, 2018: Journal of Experimental Botany
https://www.readbyqxmd.com/read/29340500/respiratory-evaluation-through-volumetric-capnography-among-grade-iii-obese-and-eutrophic-individuals-a-comparative-study
#11
Débora Aparecida Oliveira Modena, Marcos Mello Moreira, Ilma Aparecida Paschoal, Mônica Corso Pereira, Luiz Cláudio Martins, Everton Cazzo, Elinton Adami Chaim
BACKGROUND: Excess trunk body fat in obese individuals influences respiratory physiological function. The aims of this study were to compare volumetric capnography findings (VCap) between severely obese patients and normal-weight subjects and to assess whether there is any association between neck circumference (NC), waist-hip ratio (WHR) and VCap among grade III obese individuals. DESIGN AND SETTING: Analytical observational case-matched cross-sectional study, University of Campinas...
January 15, 2018: São Paulo Medical Journal, Revista Paulista de Medicina
https://www.readbyqxmd.com/read/29340166/withdrawal-of-antihypertensive-therapy-in-people-with-dementia-feasibility-study
#12
Veronika van der Wardt, Jennifer K Burton, Simon Conroy, Tomas Welsh, Pip Logan, Jaspal Taggar, Lukasz Tanajewski, John Gladman
Background: This study explored the feasibility of a randomised controlled withdrawal trial of antihypertensive medication in normotensive people with dementia. Feasibility aspects included response, recruitment, exclusion and drop-out rates, suitability of outcome measures, acceptability of study procedures and an indicative economic evaluation for a randomised controlled trial. Methods: A cohort study attempting the withdrawal of antihypertensive drugs where appropriate and a feasibility study of home-based blood pressure monitoring, in people with dementia treated for hypertension, was undertaken...
2018: Pilot and Feasibility Studies
https://www.readbyqxmd.com/read/29340005/comparison-of-aerobic-performance-testing-protocols-in-elite-male-wheelchair-basketball-players
#13
Bartosz Molik, Andrzej Kosmol, Natalia Morgulec-Adamowicz, Judit Lencse-Mucha, Anna Mróz, Karol Gryko, Jolanta Marszałek
In wheelchair sports, aerobic performance is commonly assessed with the use of an arm crank ergometer (ACE), a wheelchair ergometer (WCE) or a wheelchair treadmill (WCT). There are different protocols to identify peak oxygen uptake in wheelchair sports; however, only a few protocols have been applied to evaluate these conditions in wheelchair basketball players. The purpose of this study was to compare physiological responses during maximal exercise testing with the use of ACE and WCT in wheelchair basketball players...
December 2017: Journal of Human Kinetics
https://www.readbyqxmd.com/read/29339771/etiology-of-language-network-changes-during-recovery-of-aphasia-after-stroke
#14
Casper A M M van Oers, H Bart van der Worp, L Jaap Kappelle, Mathijs A H Raemaekers, Willem M Otte, Rick M Dijkhuizen
Knowledge of spatiotemporal patterns of language network changes may help in predicting outcome in aphasic stroke patients. Here we assessed language function and performed functional MRI four times during one year to measure language network activation and cerebrovascular reactivity (with breath-holding) in twelve left-hemispheric stroke patients, of whom two dropped out before the final measurement, and eight age-matched controls. Language outcome was related to increase of activation in left and right posterior inferior temporal gyrus over the first year, while activation increase in right inferior frontal gyrus was inversely correlated to language recovery...
January 16, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29339129/systemic-reactions-in-pediatric-patients-receiving-standardized-allergen-subcutaneous-immunotherapy-with-and-without-seasonal-dose%C3%A2-adjustment
#15
Sultan Albuhairi, Tatyana Sare, Paul Lakin, Kristel El Khoury, Elena Crestani, Lynda C Schneider, Rocco Anzaldi, Al Patterson, Rima Rachid
BACKGROUND: The 2003 Joint Task Force on Practice Parameters recommended standardizing allergen subcutaneous immunotherapy (SCIT). Data from longitudinal surveillance survey in North America reported a systemic reaction (SR) rate of 0.1% to 0.2% of injection visits. The rate of SR to standardized SCIT in pediatric patients has not been well evaluated. OBJECTIVE: The objective of this study was to evaluate the rate of SRs to standardized SCIT in pediatric patients aged 5 to 18 years in a single tertiary care center in the United States...
January 12, 2018: Journal of Allergy and Clinical Immunology in Practice
https://www.readbyqxmd.com/read/29338859/renal-function-and-outcome-after-heart-transplantation
#16
Oscar Kolsrud, Kristjan Karason, Erik Holmberg, Sven-Erik Ricksten, Marie Felldin, Ola Samuelsson, Göran Dellgren
OBJECTIVES: To investigate whether measured glomerular filtration rate (mGFR) is a risk factor for death and/or end-stage renal disease (ESRD) after heart transplantation (HTx). METHODS: All adult patients (n = 416) who underwent HTx between 1988 and 2010 were included. mGFR was performed both preoperatively and postoperatively as annual follow-up. Eight patients received a concomitant kidney transplant (KTx), and 15 underwent late KTx due to chronic renal failure after HTx...
December 14, 2017: Journal of Thoracic and Cardiovascular Surgery
https://www.readbyqxmd.com/read/29338821/factors-influencing-regional-cerebral-oxygen-saturation-during-one-lung-ventilation-in-thoracic-surgery
#17
Ya Hong Gong, Wei Jia Wang, Wei Wei, Yu Guang Huang
Objective To identify factors influencing regional cerebral oxygen saturation (rScO2) during one-lung ventilation (OLV) in thoracic surgery. Methods Totally 33 patients with an ASA physical status of 1-3 scheduled for elective thoracic surgery with one-lung ventilation under general anesthesia were recruited. After anesthesia was induced with propofol,fentanyl/sufentanil,and rocuronium. All patients received balanced anesthesia using sevoflurane. During OLV,volume-controlled ventilation was used with a tidal volume of 6-7 ml/kg and an inspiration:expiration ratio of 1:1...
December 20, 2017: Zhongguo Yi Xue Ke Xue Yuan Xue Bao. Acta Academiae Medicinae Sinicae
https://www.readbyqxmd.com/read/29338331/the-impact-of-hiv-diagnosis-on-length-of-hospital-stay-in-new%C3%A2-york-city-ny-usa
#18
Tawandra L Rowell-Cunsolo, Jianfang Liu, Yanhan Shen, Amber Britton, Elaine Larson
While hospitalizations among people living with human immunodeficiency virus (PLWH) have been elevated in the past compared to their uninfected counterparts, the introduction of antiretroviral therapy (ART) has resulted in great strides in controlling symptomatic infection. However, research largely overlooks important differences among HIV-infected individuals, primarily PLWH who are symptomatic versus those who are asymptomatic. We conducted a retrospective study assessing the length of hospital stay among 717,237 admissions from three hospitals in the New York City area...
January 17, 2018: AIDS Care
https://www.readbyqxmd.com/read/29338124/conservative-therapy-for-chalazia-is-it-really-effective
#19
Albert Y Wu, Kalla A Gervasio, Kellie N Gergoudis, Chen Wei, James H Oestreicher, John T Harvey
PURPOSE: To assess the within-treatment efficacy of hot compresses (HC), HC plus tobramycin (Tobrex) and HC plus tobramycin/dexamethasone (Tobradex) for chalazia treatment. METHODS: Design: Multicentre, randomized clinical trial (ClinicalTrials.gov identifier, NCT01230593). SETTING: Two clinical sites in New York and two clinical sites in Ontario. STUDY POPULATION: A total of 149 patients with one or more chalazia on separate eyelids randomly assigned to receive HC (n = 50), HC plus tobramycin (n = 50) or HC plus tobramycin/dexamethasone (n = 49)...
January 16, 2018: Acta Ophthalmologica
https://www.readbyqxmd.com/read/29337554/light-induced-deformation-of-azobenzene-containing-colloidal-spheres-calculation-and-measurement-of-opto-mechanical-stresses
#20
Sarah Loebner, Nino Lomadze, Alexey Kopyshev, Markus Koch, Olga Guskova, Marina Grenzer Saphiannikova, Svetlana A Santer
We report on light induced deformation of colloidal spheres consisting of azobenzene containing polymers. The colloids of the size between 60nm and 2m in diameter were drop casted on a glass surface and irradiated with linearly polarized light. It was found that colloidal particles can be deformed up to ca. 6 times of their initial diameter. The maximum degree of deformation depends on the irradiation wavelength and intensity, as well as on colloidal particles size. Based on recently proposed theory [V. Toshchevikov et al...
January 16, 2018: Journal of Physical Chemistry. B
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