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https://www.readbyqxmd.com/read/28822206/prevalence-and-molecular-characterisation-of-schistosoma-haematobium-among-primary-school-children-in-kebbi-state-nigeria
#1
Shuaibu Umar, Saadatu Haruna Shinkafi, Shuaibu Abdullahi Hudu, Vasanthakumari Neela, Kumar Suresh, Syafinaz Amin Nordin, Osman Malina
Schistosomiasis is the major source of morbidity in Sub-Saharan Africa and Asia. It is estimated that 207 million people are infected, of which 97% are in Africa. The aim of this study was the determining of prevalence as well as the phylogeny of S. haematobium among school children in Argungu Emirate, Kebbi State Nigeria. A total of 325 urine samples was collected from school children between 7 to 14 years. S. heamatobium eggs was examined under dissecting microscope and DNA was extracted from urine sample and COX1 gene was amplified by nested PCR...
2017: Annals of Parasitology
https://www.readbyqxmd.com/read/28821719/neural-physiological-and-behavioral-correlates-of-visuomotor-cognitive-load
#2
S M Hadi Hosseini, Jennifer L Bruno, Joseph M Baker, Andrew Gundran, Lene K Harbott, J Christian Gerdes, Allan L Reiss
Visuomotor ability is quite crucial for everyday functioning, particularly in driving and sports. While there is accumulating evidence regarding neural correlates of visuomotor transformation, less is known about the brain regions that accommodate visuomotor mapping under different cognitive demands. We concurrently measured cortical activity and pupillary response, using functional near infrared spectroscopy (fNIRS) and eye-tracking glasses, to examine the neural systems linked to pupil dilation under varying cognitive demands...
August 18, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28819627/pharmacokinetics-and-pharmacodynamics-evaluation-of-tramadol-in-thermoreversible-gels
#3
Juliana Zampoli Boava Papini, Cíntia Maria Saia Cereda, José Pedrazzoli Júnior, Silvana Aparecida Calafatti, Daniele Ribeiro de Araújo, Giovana Radomille Tofoli
We evaluated pharmacokinetics (PK) and pharmacodynamics (PD) induced by new formulations of tramadol (TR) in thermoreversible gels. The poloxamer- (PL-) tramadol systems were prepared by direct dispersion of the drug in solutions with PL 407 and PL 188. The evaluated formulations were as follows: F1: TR 2% in aqueous solution and F2: PL 407 (20%) + PL 188 (10%) + TR 2%; F3: PL 407 (25%) + PL 188 (5%) + TR 2%; F4: PL 407 (20%) + TR 2%. New Zealand White rabbits were divided into four groups (n = 6) and treated by subcutaneous route with F1, F2, F3, or F4 (10 μg·kg(-1))...
2017: BioMed Research International
https://www.readbyqxmd.com/read/28817751/a-peaked-pupil
#4
Swarup S Swaminathan, Carol L Karp
No abstract text is available yet for this article.
August 17, 2017: JAMA Ophthalmology
https://www.readbyqxmd.com/read/28816865/liquid-crystal-spatial-light-modulators-for-simulating-zonal-multifocal-lenses
#5
Yiyu Li, Arthur Bradley, Renfeng Xu, Pete S Kollbaum
SIGNIFICANCE: To maximize efficiency of the normally lengthy and costly multizone lens design and testing process, it is advantageous to evaluate the potential efficacy of a design as thoroughly as possible prior to lens fabrication and on-eye testing. The current work describes an ex vivo approach of optical design testing. PURPOSE: The aim of this study was to describe a system capable of examining the optical characteristics of multizone bifocal and multifocal optics by subaperture stitching using liquid crystal technologies...
August 14, 2017: Optometry and Vision Science: Official Publication of the American Academy of Optometry
https://www.readbyqxmd.com/read/28816817/a-novel-surgical-technique-for-ahmed-valves-in-refractory-glaucoma-with-silicone-oil-endotamponade
#6
Juan Maria Davo-Cabrera, Aitor Lanzagorta-Aresti, Pablo Alcocer Yuste
PURPOSE: The purpose of the study is to describe a novel technique to implant Ahmed valves in patients with refractory glaucoma because of silicone oil (SO) endotamponade PATIENTS:: Three patients with glaucoma without SO removal were used as an example for this technique. METHODS: Technique report. RESULTS AND CONCLUSIONS: We introduce a standard technique modification for Ahmed valves in patients with SO. This modification consists on locating the Ahmed valve more tangential to the limbus curvature instead of the usual perpendicular position and inserting the tube in the posterior chamber...
August 14, 2017: Journal of Glaucoma
https://www.readbyqxmd.com/read/28815298/the-interaction-of-pupil-response-with-the-vergence-system
#7
Moritz Feil, Barbara Moser, Mathias Abegg
PURPOSE: A gaze shift from a target at distance to a target at near leads to pupillary constriction. The regulation of this pupillary near response is ill known. We investigated the impact of accommodation, convergence, and proximity on the pupillary diameter. METHODS: We recorded pupil size and vergence eye movements with the use of an infrared eye tracker. We determined the pupillary response in four conditions: (1) after a gaze shift from far to near without accommodation, (2) after a gaze shift from far to near with neither accommodation nor convergence, (3) after accommodation alone, and (4) after accommodation with convergence without a gaze shift to near...
August 16, 2017: Graefe's Archive for Clinical and Experimental Ophthalmology
https://www.readbyqxmd.com/read/28814824/cataract-surgery-in-patients-with-pseudoex-foliation-syndrome-current-updates
#8
REVIEW
Luigi Fontana, Marco Coassin, Alfonso Iovieno, Antonio Moramarco, Luca Cimino
Pseudoexfoliation is a ubiquitous syndrome of multifactorial origin affecting elderly people by increasing the risk of cataract and secondary glaucoma development. Despite modern techniques and technologies for cataract surgery, pseudoexfoliation syndrome represents a challenge for surgeons because of the increased weakness of the zonular apparatus and limited pupil dilation. Due to the inherent difficulties during surgery, the risk of vitreous loss in these patients is several times higher than in cataract patients without pseudoexfoliation...
2017: Clinical Ophthalmology
https://www.readbyqxmd.com/read/28811796/visual-outcome-after-phacoemulsification-with-lens-implant-in-diabetic-and-non-diabetic-patients-a-comparative-study
#9
Abdul Rashid Shaikh, Abdul Haleem Mirani, Muhammad Saleh Memon, Muhammad Faisal Fahim
OBJECTIVE: To compare the visual outcomes of phacoemulsification surgery with intraocular lens (IOL) in persons with and without diabetes at end of follow-up. METHODS: This was a comparative, cross sectional, observational study with Non-probability, purposive sampling. After approval from "Research Ethical Committee of Isra Post-graduate Institute of Ophthalmology Karachi, 92 patients with cataract in one eye were selected. Patients were divided into two groups...
May 2017: Pakistan Journal of Medical Sciences Quarterly
https://www.readbyqxmd.com/read/28811624/pupil-size-tracks-attentional-performance-in-attention-deficit-hyperactivity-disorder
#10
G Wainstein, D Rojas-Líbano, N A Crossley, X Carrasco, F Aboitiz, T Ossandón
Attention-deficit/hyperactivity disorder (ADHD) diagnosis is based on reported symptoms, which carries the potential risk of over- or under-diagnosis. A biological marker that helps to objectively define the disorder, providing information about its pathophysiology, is needed. A promising marker of cognitive states in humans is pupil size, which reflects the activity of an 'arousal' network, related to the norepinephrine system. We monitored pupil size from ADHD and control subjects, during a visuo-spatial working memory task...
August 15, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28810812/are-perceptions-of-social-norms-regarding-peer-alcohol-and-other-drug-use-associated-with-personal-use-in-danish-adolescents
#11
Lotte Vallentin-Holbech, Birthe Marie Rasmussen, Christiane Stock
AIMS: This study aims to describe norm perceptions among Danish pupils aged 13-17 years related to the prevalence of personal lifetime use of alcohol and other drugs (AODs). Further we examined if norm perceptions were associated with personal lifetime AOD use. METHOD: The data were collected as baseline data in the trial The GOOD Life. A total of 2601 pupils from 42 public schools in the Region of Southern Denmark completed an online questionnaire measuring personal lifetime AOD use and personal approval of use...
August 1, 2017: Scandinavian Journal of Public Health
https://www.readbyqxmd.com/read/28808605/fatal-cerebral-swelling-immediately-after-cranioplasty-a-case-report
#12
Yuta Kaneshiro, Keiji Murata, Shigeru Yamauchi, Yumiko Urano
BACKGROUND: Cranioplasty is a standard neurosurgical procedure which is performed after decompressive craniotomy. Fatal complications associated with this procedure are not well documented. Here, we report a case of fatal cerebral swelling after cranioplasty and discuss the possible mechanism of this complication. CASE DESCRIPTION: A 64-year-old man was admitted with the diagnosis of cerebral hemorrhage, and emergency surgery for hemorrhage removal and decompressive craniotomy were performed...
2017: Surgical Neurology International
https://www.readbyqxmd.com/read/28807904/no-clinically-relevant-drug-drug-interactions-between-methadone-or-buprenorphine-naloxone-and-anti-viral-combination-glecaprevir-and-pibrentasvir
#13
Matthew Kosloski, Weihan Zhao, Armen Asatryan, Jens Kort, Pierre Geoffroy, Wei Liu
The combination of glecaprevir (formerly ABT-493), a nonstructural (NS) protein 3/4A protease inhibitor, and pibrentasvir (formerly ABT-530), a NS5A protein inhibitor, is being developed as treatment for HCV genotype 1-6 infection. The pharmacokinetics, pharmacodynamics, safety, and tolerability of methadone or buprenorphine/naloxone when coadministered with the glecaprevir and pibrentasvir combination in HCV-negative subjects on stable opioid maintenance therapy were investigated in a Phase 1, single-center, two-arm, multiple-dose, open-label sequential study...
August 14, 2017: Antimicrobial Agents and Chemotherapy
https://www.readbyqxmd.com/read/28807373/usefulness-of-cocaine-drops-in-investigating-infant-anisocoria
#14
Gilles C Martin, Pierre-Antoine Aymard, Charlotte Denier, Caroline Seghir, Marc Abitbol, Nathalie Boddaert, Dominique Bremond-Gignac, Matthieu P Robert
INTRODUCTION: Whereas apraclonidine has eclipsed cocaine test in the exploration of unilateral miosis in adults, its use in infants is avoided because of the risk of central nervous system depression. This chart review evaluates the usefulness of cocaine drops in infants. METHODS: Infants under the age of one referred for unilateral miosis between November 1, 2009 and November 1, 2015, were reviewed. Patients underwent the following protocol: (1) in case of isolated miosis, cocaine test was performed...
August 4, 2017: European Journal of Paediatric Neurology: EJPN
https://www.readbyqxmd.com/read/28805589/visual-dysfunction-in-parkinson-s-disease
#15
Richard A Armstrong
This chapter describes the visual problems likely to be encountered in Parkinson's disease (PD) and whether such signs are useful in differentiating the parkinsonian syndromes. Visual dysfunction in PD may involve visual acuity, contrast sensitivity, color discrimination, pupil reactivity, saccadic and pursuit eye movements, motion perception, visual fields, and visual processing speeds. In addition, disturbance of visuospatial orientation, facial recognition problems, rapid eye movement (REM) sleep behavior disorder, and chronic visual hallucinations may be present...
2017: International Review of Neurobiology
https://www.readbyqxmd.com/read/28804247/ophthalmology-in-north-america-early-stories-1491-1801
#16
REVIEW
Christopher T Leffler, Stephen G Schwartz, Ricardo D Wainsztein, Adam Pflugrath, Eric Peterson
New World plants, such as tobacco, tomato, and chili, were held to have beneficial effects on the eyes. Indigenous healers rubbed or scraped the eyes or eyelids to treat inflammation, corneal opacities, and even eye irritation from smoke. European settlers used harsh treatments, such as bleeding and blistering, when the eyes were inflamed or had loss of vision with a normal appearance (gutta serena). In New Spain, surgery for corneal opacity was performed in 1601 and cataract couching in 1611. North American physicians knew of contralateral loss of vision after trauma or surgery (sympathetic ophthalmia), which they called "sympathy...
2017: Ophthalmology and Eye Diseases
https://www.readbyqxmd.com/read/28802461/applying-fractal-analysis-to-pupil-dilation-for-measuring-complexity-in-a-process-monitoring-task
#17
Jung Hyup Kim, Xiaonan Yang
This laboratory experiment was designed to use fractal dimension as a new method to analyze pupil dilation to evaluate the level of complexity in a multitasking environment. By using the eye-head integrated tracking system, we collected both pupil responses and head positions while participants conducted both process monitoring task and Multi-Attribute Task Battery (MATB-II) tasks. There was a significant effect of scenario complexity on a composite index of multitasking performance (Low Complexity » High Complexity)...
November 2017: Applied Ergonomics
https://www.readbyqxmd.com/read/28802450/the-effect-of-motor-task-precision-on-pupil-diameter
#18
Kingsley Fletcher, Andrew Neal, Gillian Yeo
It is well established that an increase in cognitive task demands is associated with increased pupil diameter. However, the effect of increased motor task demands on pupil diameter is less clear. Previous research indicates that higher motor task complexity increases pupil diameter but suggests that higher motor task precision demands may decrease pupil diameter during task movement. The current study investigated the effect of increased motor task precision on pupil diameter using a Fitts' Law movement task to manipulate motor response precision...
November 2017: Applied Ergonomics
https://www.readbyqxmd.com/read/28797539/risk-factors-for-poor-prognosis-in-children-with-refractory-purulent-meningitis-and-the-discharge-criteria
#19
Hai-Lun Peng, Yue Hu, Hong-Jia Chen, Pan-Pan Song, Li Jiang
This study was undertaken to investigate the relationship between cerebrospinal fluid abnormalities and prognosis in pediatric refractory purulent meningitis. Ninety cases of pediatric refractory purulent meningitis were stratified into "good" (n=33) or "poor" (n=57) prognosis groups according to the Glasgow clinical outcome scores. The symptoms, laboratory results, and prognosis were compared by using univariate and multivariate logistic regression analyses. Univariate analysis showed that poor prognosis was associated with: unequal pupil size in both eyes; positive Babinski sign; CSF-WBC >500×10(6)/L, CSF protein concentration >1...
August 7, 2017: Journal of Infection and Public Health
https://www.readbyqxmd.com/read/28796983/the-quality-of-life-among-middle-school-adolescents-in-krakow
#20
Agnieszka Magiera, Agata Sowa, Ryszard Jacek, Agnieszka Pac
AIM: The aim of the study was to describe the quality of life of Polish adolescents living in a big city and to investigate whether there are differences in this respect between girls and boys. Moreover, we would like to compare the results concerning the quality of life of the screened adolescents from Krakow with those of their European peers. MATERIAL AND METHODS: The survey was carried out in 2013-2015 in 17 middle schools in Krakow based on anonymous auditorium questionnaires...
2017: Developmental Period Medicine
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