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https://www.readbyqxmd.com/read/28527386/gait-patterns-of-children-and-adolescents-with-charcot-marie-tooth-disease
#1
Elizabeth Wojciechowski, Amy Sman, Kayla Cornett, Jacqueline Raymond, Kathryn Refshauge, Manoj P Menezes, Joshua Burns
Gait abnormalities reported in childhood Charcot-Marie-Tooth disease (CMT) include foot-drop, reduced ankle power at push-off and increased knee and hip flexion for swing clearance ('steppage-gait'). The purpose of this study was to describe the gait patterns of 60 children aged 6-17 years with CMT (CMTall) and distinguish differences based on functional weakness using the CMT Pediatric Scale (CMTPedS). Data were captured using Vicon Nexus system and compared to 50 healthy norms. Data were subdivided into three groups denoting increasing severity of dorsiflexion and plantarflexion weakness from the CMTPedS: no difficulty heel or toe walking (CMTND), difficulty heel walking (CMTDH), difficulty toe and heel walking (CMTDTH)...
May 8, 2017: Gait & Posture
https://www.readbyqxmd.com/read/28527369/prolonged-epileptiform-eeg-runs-are-associated-with-persistent-seizures-in-juvenile-myoclonic-epilepsy
#2
Vibeke Arntsen, Trond Sand, Marte R Syvertsen, Eylert Brodtkorb
OBJECTIVE: In juvenile myoclonic epilepsy (JME), various EEG characteristics have been suggested as poor prognostic signs, but their significance is unclear. The aim of this study was to assess the influence of EEG variables on seizure and psychosocial outcome after a follow-up exceeding 20 years. METHODS: 396 EEG recordings were available for assessment in 40 patients (42 complete digital, 330 paper segments and 24 written reports only). Mean follow-up was 31 years (range 20-68)...
May 8, 2017: Epilepsy Research
https://www.readbyqxmd.com/read/28527348/the-thermal-neutron-facility-hotnes-theoretical-design
#3
R Bedogni, A Pietropaolo, J M Gomez-Ros
HOTNES (HOmogeneous Thermal NEutron Source) is a thermal neutron irradiation facility with extended and very uniform irradiation area. A (241)Am-B radionuclide neutron source with nominal strenght 3.5×10(6) s(-1) is located on bottom of a large cylindrical cavity (30cm diameter, 70cm in height) delimited by polyethylene walls. The upper part of this volume (30cm diameter, 40cm in height) is used to irradiate samples. A polyethylene cylinder, acting as shadowing object, prevents fast neutrons to directly reach the irradiation volume...
May 4, 2017: Applied Radiation and Isotopes
https://www.readbyqxmd.com/read/28527343/engineering-genetically-encoded-tools-for-optogenetic-control-of-protein-activity
#4
REVIEW
Qi Liu, Chandra L Tucker
Optogenetic tools offer fast and reversible control of protein activity with subcellular spatial precision. In the past few years, remarkable progress has been made in engineering photoactivatable systems regulating the activity of cellular proteins. In this review, we discuss general strategies in designing and optimizing such optogenetic tools and highlight recent advances in the field, with specific focus on applications regulating protein catalytic activity.
May 17, 2017: Current Opinion in Chemical Biology
https://www.readbyqxmd.com/read/28527312/low-energy-electron-potentiometry
#5
Johannes Jobst, Jaap Kautz, Maria Mytiliniou, Rudolf M Tromp, Sense Jan van der Molen
In a lot of systems, charge transport is governed by local features rather than being a global property as suggested by extracting a single resistance value. Consequently, techniques that resolve local structure in the electronic potential are crucial for a detailed understanding of electronic transport in realistic devices. Recently, we have introduced a new potentiometry method based on low-energy electron microscopy (LEEM) that utilizes characteristic features in the reflectivity spectra of layered materials [1]...
May 13, 2017: Ultramicroscopy
https://www.readbyqxmd.com/read/28527304/additive-effect-of-non-alcoholic-fatty-liver-disease-on-the-development-of-diabetes-in-individuals-with-metabolic-syndrome
#6
Ji Cheol Bae, Soo Kyoung Kim, Ji Min Han, Sam Kwon, Da Young Lee, Jihyun Kim, Se Eun Park, Cheol-Young Park, Won-Young Lee, Ki-Won Oh, Sung-Woo Park, Eun Jung Rhee
INTRODUCTION: Non-alcoholic fatty liver disease (NAFLD) is considered as the hepatic manifestation of the metabolic syndrome (MetS), with insulin resistance as the common pathophysiology. In a current longitudinal cohort study, we evaluated the separate and combined effects of MetS and NAFLD on incident diabetes risk. METHODS: Participants were categorized into four groups on the basis of the presence of NAFLD and MetS at baseline (i.e., with NAFLD, with MetS, with both, or without either)...
May 5, 2017: Diabetes Research and Clinical Practice
https://www.readbyqxmd.com/read/28527298/enhanced-adsorption-performance-of-mos2-nanosheet-coated-mil-101-hybrids-for-the-removal-of-aqueous-rhodamine-b
#7
Cao Yang, Jianhua Cheng, Yuancai Chen, Yongyou Hu
A MoS2 nanosheet-coated chromium terephthalate MIL-101 octahedron hybrid (denoted as MoS2/MIL-101) was prepared via a simple hydrothermal reaction. The obtained MoS2/MIL-101 hybrid exhibited a significantly enhanced adsorption ability toward rhodamine B (RhB) as compared with pure MoS2, MIL-101, and the physical mixture of the two. The results demonstrate that the MoS2/MIL-101 hybrid had a high uptake capacity (Qm ≈ 344.8mgg(-1)) and fast adsorption rate for the removal of aqueous RhB. The excellent adsorption performance is likely related to the synergism of hydrogen bonding, π-π stacking interactions, and direct coordination between the MIL-101 substrate and RhB, as well as electrostatic interactions between MoS2 nanosheets and RhB...
May 10, 2017: Journal of Colloid and Interface Science
https://www.readbyqxmd.com/read/28527280/-pperformance-of-led-fluorescence-microscopy-for-the-detection-of-acid-fast-bacilli-from-respiratory-samples-in-peripheral-laboratories-in-argentina
#8
María Imaz, Sonia Allassia, Mónica Aranibar, Alba Gunia, Susana Poggi, Ana Togneri, Lidia Wolff, Group Of Implementation Of Fluorescence
INTRODUCTION: Light-emitting diode fluorescence microscopy (LED-FM) has been endorsed by the World Health Organization (WHO) for tuberculosis diagnosis, but its accuracy in HIV-infected patients remains controversial, and only some few studies have explored procedural factors that may affect its performance. OBJECTIVE: To evaluate the performance of LED-FM for tuberculosis diagnosis in patients with and without HIV infection using a newer, less expensive LED lamp...
June 1, 2017: Biomédica: Revista del Instituto Nacional de Salud
https://www.readbyqxmd.com/read/28527236/a-weighted-difference-of-l1-and-l2-on%C3%A2-the%C3%A2-gradient-minimization-based-on%C3%A2-alternating-direction-method-for%C3%A2-circular%C3%A2-computed-tomography
#9
Wanli Lu, Lei Li, Ailong Cai, Hanming Zhang, Linyuan Wang, Bin Yan
Iterative reconstruction algorithms for computed tomography (CT) through total variation (TV) regularization can provide accurate and stable reconstruction results. TV minimization is the L1-norm of gradient-magnitude images and can be regarded as a convex relaxation method to replace the L0 norm. In this study, a fast and efficient algorithm, which is named a weighted difference of L1 and L2 (L1 - αL2) on the gradient minimization, was proposed and investigated. The new algorithm provides a better description of sparsity for the optimization-based algorithms than TV minimization algorithms...
May 15, 2017: Journal of X-ray Science and Technology
https://www.readbyqxmd.com/read/28527234/impaired-postural-balance-correlates-with-complex-walking-performance-in-mildly-disabled-persons-with-multiple-sclerosis
#10
John Brincks, Elisabeth Due Andersen, Henrik Sørensen, Ulrik Dalgas
BACKGROUND: It is relevant to understand the possible influence of impaired postural balance on walking performance in multiple sclerosis (MS) gait rehabilitation. OBJECTIVE: We expected associations between impaired postural balance and complex walking performance in mildly disabled persons with MS, but not in healthy controls. METHODS: Thirteen persons with MS (Expanded Disability Status Scale = 2.5) and 13 healthy controls' walking performance were measured at fast walking speed, Timed Up & Go and Timed 25 Feet Walking...
May 13, 2017: NeuroRehabilitation
https://www.readbyqxmd.com/read/28527211/alzheimer-s-disease-in-the-latino-community-intersection-of-genetics-and-social-determinants-of-health
#11
Irving E Vega, Laura Y Cabrera, Cassandra M Wygant, Daniel Velez-Ortiz, Scott E Counts
Alzheimer's disease (AD) is the most common type of dementia among individuals 65 or older. There are more than 5 million diagnosed cases in the US alone and this number is expected to triple by 2050. Therefore, AD has reached epidemic proportions with significant socioeconomic implications. While aging in general is the greatest risk factor for AD, several additional demographic factors that have contributed to the rise in AD in the US are under study. One such factor is associated with the relatively fast growth of the Latino population...
May 17, 2017: Journal of Alzheimer's Disease: JAD
https://www.readbyqxmd.com/read/28527199/the-value-of-contrast-enhanced-ultrasound-ceus-using-a-high-end-ultrasound-system-in-the-characterization-of-endoleaks-after-endovascular-aortic-repair-evar
#12
J Rübenthaler, M Reiser, V Cantisani, D Rjosk-Dendorfer, D A Clevert
PURPOSE: To evaluate the value of contrast-enhanced ultrasound (CEUS) using a high-end ultrasound system in the characterization of endoleaks after endovascular aortic repair (EVAR). MATERIAL AND METHODS: In this mono-center study, 41 patients were retrospectively analyzed after being examined using a modern high-end ultrasound system (RS80A with Prestige, Samsung Medison Co., Ltd., Seoul, Korea). The maximum diameters of the aneurysms were measured in two planes (right-left and ventral-dorsal)...
May 18, 2017: Clinical Hemorheology and Microcirculation
https://www.readbyqxmd.com/read/28527155/status-of-laparoscopic-sleeve-gastrectomy-in-china-a-national-survey
#13
Shibo Lin, Wei Guan, Pankaj Hans, Hui Liang
BACKGROUND: Laparoscopic sleeve gastrectomy (LSG) is a favorable bariatric procedure. This study evaluated the status of LSG in China. METHODS: During the 4(th) International Forum of Bariatric and Metabolic Surgery in May 2016, Nanjing China, an on-the-spot questionnaire was filled out by 105 attending surgeons with experience of LSG. The feedback data was collected and analyzed. RESULTS: For preoperative preparations, surgeons preferred blood glucose control with insulin (61...
May 19, 2017: Obesity Surgery
https://www.readbyqxmd.com/read/28527105/association-between-lumbar-bone-mineral-density-and-serum-uric-acid-in-postmenopausal-women-a-cross-sectional-study-of-healthy-chinese-population
#14
Wen Han, Xiaojuan Bai, Nan Wang, Lulu Han, Xuefeng Sun, Xiangmei Chen
Partial correlation and regression analyses were used in this study. We showed that there is a linear relationship between bone mineral density and serum uric acid within the normal physiologic range, and higher serum uric acid levels had a protective effect on bone loss in postmenopausal osteoporosis. PURPOSE: The significance of the relationship between lumbar bone mineral density (()BMD) and serum uric acid (SUA) levels is unclear. The aims of this study were to investigate on a population-level the association between lumbar BMD and SUA within the normal physiologic range and to determine whether SUA plays a protective role in bone loss in healthy postmenopausal Chinese women...
December 2017: Archives of Osteoporosis
https://www.readbyqxmd.com/read/28527055/cluster-headache-present-and-future-therapy
#15
Massimo Leone, Alessandro Giustiniani, Alberto Proietti Cecchini
Cluster headache is characterized by severe, unilateral headache attacks of orbital, supraorbital or temporal pain lasting 15-180 min accompanied by ipsilateral lacrimation, rhinorrhea and other cranial autonomic manifestations. Cluster headache attacks need fast-acting abortive agents because the pain peaks very quickly; sumatriptan injection is the gold standard acute treatment. First-line preventative drugs include verapamil and carbolithium. Other drugs demonstrated effective in open trials include topiramate, valproic acid, gabapentin and others...
May 2017: Neurological Sciences
https://www.readbyqxmd.com/read/28527002/design-and-development-of-amperometric-biosensor-for-the-detection-of-lead-and-mercury-ions-in-water-matrix-a-permeability-approach
#16
Manju Bhargavi Gumpu, Uma Maheswari Krishnan, John Bosco Balaguru Rayappan
Intake of water contaminated with lead (Pb(2+)) and mercury (Hg(2+)) ions leads to various toxic effects and health issues. In this context, an amperometric urease inhibition-based biosensor was developed to detect Pb(2+) and Hg(2+) ions in water matrix. The modified Pt/CeO2/urease electrode was fabricated by immobilizing CeO2 nanoparticles and urease using a semi-permeable adsorption layer of nafion. With urea as a substrate, urease catalytic activity was examined through cyclic voltammetry. Further, maximum amperometric inhibitive response of the modified Pt/CeO2/urease electrode was observed in the presence of Pb(2+) and Hg(2+) ions due to the urease inhibition at specific potentials of -0...
May 20, 2017: Analytical and Bioanalytical Chemistry
https://www.readbyqxmd.com/read/28526969/glycaemia-and-phosphatemia-after-oral-glucose-and-maltitol-ingestion-in-subjects-from-two-different-race-groups-preliminary-evidence-of-inter-race-differences-in-metabolism-and-possible-implications-for-urinary-stone-disease
#17
Takalani Theka, Allen Rodgers
PURPOSE: Glucose (Glu) and maltitol (Mal) ingestion affect calciuria and phosphaturia. Renal phosphate leak involving hypophosphatemia is thought to be a mechanism. Inter-race differences in carbohydrate metabolism are known. We investigated the effects of Glu and Mal ingestion on glycaemia and phosphatemia in subjects from two race groups to better understand potential implications for nephrolithiasis. METHODS: Healthy black (B) (n = 8) and white (W) (n = 8) males followed a self-selected standardized diet for 7 days and a strictly controlled standardized diet on Day 8...
May 19, 2017: International Urology and Nephrology
https://www.readbyqxmd.com/read/28526963/incorporation-of-the-time-varying-postprandial-increase-in-splanchnic-blood-flow-into-a-pbpk-model-to-predict-the-effect-of-food-on-the-pharmacokinetics-of-orally-administered-high-extraction-drugs
#18
Rachel H Rose, David B Turner, Sibylle Neuhoff, Masoud Jamei
Following a meal, a transient increase in splanchnic blood flow occurs that can result in increased exposure to orally administered high-extraction drugs. Typically, physiologically based pharmacokinetic (PBPK) models have incorporated this increase in blood flow as a time-invariant fed/fasted ratio, but this approach is unable to explain the extent of increased drug exposure. A model for the time-varying increase in splanchnic blood flow following a moderate- to high-calorie meal (TV-Q Splanch) was developed to describe the observed data for healthy individuals...
May 19, 2017: AAPS Journal
https://www.readbyqxmd.com/read/28526920/effects-of-semaglutide-on-beta-cell-function-and-glycaemic-control-in-participants-with-type-2-diabetes-a-randomised-double-blind-placebo-controlled-trial
#19
Christoph Kapitza, Kirsten Dahl, Jacob B Jacobsen, Mads B Axelsen, Anne Flint
AIMS/HYPOTHESIS: Semaglutide is a glucagon-like peptide-1 analogue in development for the treatment of type 2 diabetes. Its effects on first- and second-phase insulin secretion and other measures of beta cell function and glycaemic control were assessed. METHODS: In this single-centre, double-blind, placebo-controlled, parallel-group trial, conducted at the Profil Institut für Stoffwechselforschung, Germany, 75 adult (aged 18-64 years) participants with type 2 diabetes (eligibility: HbA1c of 6...
May 19, 2017: Diabetologia
https://www.readbyqxmd.com/read/28526893/do-we-need-3d-tube-current-modulation-information-for-accurate-organ-dosimetry-in-chest-ct-protocols-dose-comparisons
#20
Xochitl Lopez-Rendon, Guozhi Zhang, Walter Coudyzer, Wim Develter, Hilde Bosmans, Federica Zanca
OBJECTIVES: To compare the lung and breast dose associated with three chest protocols: standard, organ-based tube current modulation (OBTCM) and fast-speed scanning; and to estimate the error associated with organ dose when modelling the longitudinal (z-) TCM versus the 3D-TCM in Monte Carlo simulations (MC) for these three protocols. METHOD: Five adult and three paediatric cadavers with different BMI were scanned. The CTDIvol of the OBTCM and the fast-speed protocols were matched to the patient-specific CTDIvol of the standard protocol...
May 19, 2017: European Radiology
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