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https://www.readbyqxmd.com/read/28109072/assessment-of-acute-kidney-injury-and-renal-fibrosis-after-renal-ischemia-protocols-in-cats
#1
Vanna M
In an attempt to identify a feline model of acute or chronic kidney disease, this study was designed to evaluate the effects of 15 or 30 min of bilateral renal ischemia (RI) and 60 min of unilateral RI with delayed contralateral nephrectomy as models of acute kidney injury and chronic interstitial fibrosis in cats. Adult, purpose-bred, USDA Class A cats (n = 14) were randomly assigned to receive bilateral RI for 15 min (n = 3) or 30 min (n = 3), unilateral RI for 60 min with a delayed (2 wk) contralateral nephrectomy (n = 5), or sham unilateral RI with a delayed contralateral nephrectomy (n = 3)...
January 20, 2017: Comparative Medicine
https://www.readbyqxmd.com/read/28106500/cortical-plasticity-of-motor-eloquent-areas-measured-by-navigated-transcranial-magnetic-stimulation-in-patients-with-glioma
#2
Neal Conway, Noémie Wildschuetz, Tobias Moser, Lucia Bulubas, Nico Sollmann, Noriko Tanigawa, Bernhard Meyer, Sandro M Krieg
OBJECTIVE The goal of this study was to obtain a better understanding of the mechanisms underlying cerebral plasticity. Coupled with noninvasive detection of its occurrence, such an understanding has huge potential to improve glioma therapy. The authors aimed to demonstrate the frequency of plastic reshaping, find clues to the patterns behind it, and prove that it can be recognized noninvasively using navigated transcranial magnetic stimulation (nTMS). METHODS The authors used nTMS to map cortical motor representation in 22 patients with gliomas affecting the precentral gyrus, preoperatively and 3-42 months postoperatively...
January 20, 2017: Journal of Neurosurgery
https://www.readbyqxmd.com/read/28104695/infectious-disease-risk-and-international-tourism-demand
#3
Jaume Rosselló, Maria Santana-Gallego, Waqas Awan
CONTEXT:  For some countries, favourable climatic conditions for tourism are often associated with favourable conditions for infectious diseases, with the ensuing development constraints on the tourist sectors of impoverished countries where tourism's economic contribution has a high potential. This paper evaluates the economic implications of eradication of Malaria, Dengue, Yellow Fever and Ebola on the affected destination countries focusing on the tourist expenditures. METHODS:  A gravity model for international tourism flows is used to provide an estimation of the impact of each travel-related disease on international tourist arrivals...
January 18, 2017: Health Policy and Planning
https://www.readbyqxmd.com/read/28102960/nine-degrees-of-freedom-flexmap-for-a-cone-beam-computed-tomography-imaging-device-with-independently-movable-source-and-detector
#4
Peter Keuschnigg, Daniel Kellner, Karl Fritscher, Andrea Zechner, Ulrich Mayer, Philipp Huber, Felix Sedlmayer, Heinz Deutschmann, Philipp Steininger
PURPOSE: Couch-mounted cone-beam computed tomography (CBCT) imaging devices with independently rotatable x-ray source and flat-panel detector arms for acquisitions of arbitrary regions of interest (ROI) have recently been introduced in image-guided radiotherapy (IGRT). This work analyzes mechanical limitations and gravity-induced effects influencing the geometric accuracy of images acquired with arbitrary angular constellations of source and detector in nonisocentric trajectories, which is considered essential for IGRT...
January 2017: Medical Physics
https://www.readbyqxmd.com/read/28102701/the-effect-of-pre-crash-velocity-reduction-on-occupant-response-using-a-human-body-finite-element-model
#5
B Guleyupoglu, J Schap, K D Kusano, F S Gayzik
OBJECTIVE: The objective of this study is to use a validated finite element model of the human body and a certified model of an ATD to evaluate the effect of simulated pre-crash braking on driver kinematics, restraint loads, body loads and computed injury criteria in four commonly-injured body regions. METHODS: The Global Human Body Models Consortium (GHBMC) 50th percentile male occupant (M50-O) and the Humanetics Hybrid-III 50(th) percentile models were gravity settled in the driver position of a generic interior equipped with an advanced three point belt and driver airbag...
January 19, 2017: Traffic Injury Prevention
https://www.readbyqxmd.com/read/28102358/model-for-large-area-monolayer-coverage-of-polystyrene-nanospheres-by-spin-coating
#6
Abhishek Chandramohan, Nikolai V Sibirev, Vladimir G Dubrovskii, Michael C Petty, Andrew J Gallant, Dagou A Zeze
Nanosphere lithography, an inexpensive and high throughput technique capable of producing nanostructure (below 100 nm feature size) arrays, relies on the formation of a monolayer of self-assembled nanospheres, followed by custom-etching to produce nanometre size features on large-area substrates. A theoretical model underpinning the self-ordering process by centrifugation is proposed to describe the interplay between the spin speed and solution concentration. The model describes the deposition of a dense and uniform monolayer by the implicit contribution of gravity, centrifugal force and surface tension, which can be accounted for using only the spin speed and the solid/liquid volume ratio...
January 19, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28093734/yap-is-essential-for-3d-organogenesis-withstanding-gravity
#7
REVIEW
Yoichi Asaoka, Hiroshi Nishina, Makoto Furutani-Seiki
Cells of our body are constantly exposed to physical forces such as tissue tension. In recent years, it has been shown that such mechanical signals greatly influence a number of cellular processes, including proliferation, differentiation, and migration. Conversely, cells maintain the mechanical properties of tissues by remodeling their own extracellular environment. To date, however, it is unclear about the molecular mechanisms to maintain the mechanical environment ("mechano-homeostasis") in which extracellular mechanical cues are integrated with cell proliferation and differentiation to ensure tissue, organ and body form...
January 16, 2017: Development, Growth & Differentiation
https://www.readbyqxmd.com/read/28092926/effect-of-gravity-and-microgravity-on-intracranial-pressure
#8
Justin S Lawley, Lonnie G Petersen, Erin J Howden, Satyam Sarma, William K Cornwell, Rong Zhang, Louis A Whitworth, Michael A Williams, Benjamin D Levine
Astronauts have recently been discovered to have impaired vision, with a presentation that resembles syndromes of elevated intracranial pressure (ICP). This syndrome is considered the most mission critical medical problem identified in the past decade of manned spaceflight. We recruited five men and three women who had an Ommaya reservoir inserted for the delivery of prophylactic central nervous system chemotherapy, but were free of their malignant disease for at least 1 year. ICP was assessed by placing a fluid-filled 25 ga butterfly needle into the Ommaya reservoir...
January 16, 2017: Journal of Physiology
https://www.readbyqxmd.com/read/28091930/non-equilibrium-molecular-dynamics-simulations-of-the-transient-ludwig-soret-effect-in-a-binary-lennard-jones-spline-mixture
#9
Bjørn Hafskjold
A binary isotope mixture of Lennard-Jones/spline particles at equilibrium was perturbed by a sudden change in the system's boundary temperatures. The system's response was determined by non-equilibrium molecular dynamics (NEMD). Three transient processes were studied: 1) The propagation of a pressure (shock) wave, 2) heat diffusivity and conduction, and 3) thermal diffusion (the Ludwig-Soret effect). These three processes occur at different time scales, which makes it possible to separate them in one single NEMD run...
January 2017: European Physical Journal. E, Soft Matter
https://www.readbyqxmd.com/read/28091440/nocturnal-enuresis-in-school-aged-children-with-sickle-cell-anemia-any-relationship-with-hyposthenuria
#10
C I Eneh, A N Ikefuna, H U Okafor, S N Uwaezuoke
BACKGROUND: Reports show that children with sickle-cell anemia (SCA) have a tendency for nocturnal enuresis when compared with their counterparts with normal hemoglobin. Although nocturnal enuresis in SCA has been attributed to several factors including tubular and even bladder dysfunction, its relationship with hyposthenuria has been questioned in some studies. AIM: The study aims to determine the relationship of hyposthenuria with nocturnal enuresis seen in school-aged children with SCA...
February 2017: Nigerian Journal of Clinical Practice
https://www.readbyqxmd.com/read/28088930/adherence-of-older-people-with-instability-in-vestibular-rehabilitation-programmes-prediction-criteria
#11
A Soto-Varela, A Faraldo-García, M Del-Río-Valeiras, M Rossi-Izquierdo, I Vaamonde-Sánchez-Andrade, P Gayoso-Diz, A Lirola-Delgado, S Santos-Pérez
OBJECTIVE: To determine whether demographic characteristics or balance examination findings can predict the adherence of older people with instability to a vestibular rehabilitation programme. METHODS: A prospective case-control study was conducted of 120 patients aged 65 years or more (mean age, 77.3 ± 6.33 years). Two groups were classified according to patients' adherence with the follow-up post-rehabilitation protocol. Analysed variables included: age, sex, body mass index, Timed Up and Go test findings, computerised dynamic posturography, Dizziness Handicap Inventory scores and Short Falls Efficacy Scale - International questionnaire results, number of falls, and type of vestibular rehabilitation...
January 16, 2017: Journal of Laryngology and Otology
https://www.readbyqxmd.com/read/28088539/the-dna-damage-response-of-c-elegans-affected-by-gravity-sensing-and-radiosensitivity-during-the-shenzhou-8-spaceflight
#12
Ying Gao, Dan Xu, Lei Zhao, Yeqing Sun
Space radiation and microgravity are recognized as primary and inevitable risk factors for humans traveling in space, but the reports regarding their synergistic effects remain inconclusive and vary across studies due to differences in the environmental conditions and intrinsic biological sensitivity. Thus, we studied the synergistic effects on transcriptional changes in the global genome and DNA damage response (DDR) by using dys-1 mutant and ced-1 mutant of C. elegans, which respectively presented microgravity-insensitivity and radiosensitivity when exposure to spaceflight condition (SF) and space radiation (SR)...
January 7, 2017: Mutation Research
https://www.readbyqxmd.com/read/28080911/evaluation-of-in-house-urine-dipstick-reference-laboratory-urinalysis-and-urine-protein-creatinine-ratio-from-a-colony-of-callimicos-callimico-goeldii
#13
Sarah A Cannizzo, Jennifer N Langan, Mark Warneke, Matthew Allender
This study evaluated results from an in-house (IH) laboratory dipstick, a reference laboratory (RL) urinalysis, and urine protein : creatinine (UPC) ratios from callimicos ( Callimico goeldii ). Urine was collected from 25 individuals comprising a single colony under professional care in North America and compared based on laboratory, sex, age class, and presence or absence of a normal urinalysis. Urine specific gravity and pH between laboratories were statistically different. Overall, 56% to 100% of animals had at least a trace amount of protein in their urine...
December 2016: Journal of Zoo and Wildlife Medicine: Official Publication of the American Association of Zoo Veterinarians
https://www.readbyqxmd.com/read/28077235/drivers-of-poor-medical-care
#14
REVIEW
Vikas Saini, Sandra Garcia-Armesto, David Klemperer, Valerie Paris, Adam G Elshaug, Shannon Brownlee, John P A Ioannidis, Elliott S Fisher
The global ubiquity of overuse and underuse of health-care resources and the gravity of resulting harms necessitate an investigation of drivers to inform potential solutions. We describe the network of influences that contribute to poor care and suggest that it is driven by factors that fall into three domains: money and finance; knowledge, bias, and uncertainty; and power and human relationships. In each domain the drivers operate at the global, national, regional, and individual level, and are modulated by the specific contexts within which they act...
January 6, 2017: Lancet
https://www.readbyqxmd.com/read/28075437/comparison-of-irrigation-times-using-gravity-and-high-pressure-lavage
#15
Stefano Muscatelli, Andrea Howe, Nathan N O'Hara, Robert V O'Toole, Sheila A Sprague, Gerard P Slobogean
The benefits of high-pressure pulsatile lavage for open fracture irrigation have been controversial based on conflicting experimental animal research. Recently published data definitively demonstrated that irrigation pressure does not affect the incidence of reoperation for the treatment of open fractures. However, proponents of pulsatile lavage argue a faster irrigation time is an important benefit of the high-pressure treatment. The purpose of this study was to determine the difference in irrigation time between gravity and high-pressure lavage...
January 11, 2017: Orthopedics
https://www.readbyqxmd.com/read/28074938/sprayable-superhydrophobic-nano-chains-coating-with-continuous-self-jumping-of-dew-and-melting-frost
#16
Shanlin Wang, Wenwen Zhang, Xinquan Yu, Caihua Liang, Youfa Zhang
Spontaneous movement of condensed matter provides a new insight to efficiently improve condensation heat transfer on superhydrophobic surface. However, very few reports have shown the jumping behaviors on the sprayable superhydrophobic coatings. Here, we developed a sprayable silica nano-porous coating assembled by fluorinated nano-chains to survey the condensates' dynamics. The dewdrops were continuously removed by self- and/or trigger-propelling motion due to abundant nano-pores from random multilayer stacking of nano-chains...
January 11, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28074740/what-goes-around-can-come-around-an-unexpected-deleterious-effect-of-using-mouse-running-wheels-for-environmental-enrichment
#17
Renee Y
Environmental enrichment items such as running wheels can promote the wellbeing of laboratory mice. Growing evidencesuggests that wheel running simulates exercise effects in many mouse models of human conditions, but this activityalso might change other aspects of mouse behavior. In this case study, we show that the presence of running wheels leadsto pronounced and permanent circling behavior with route-tracing in a proportion of the male mice of a genetically distinctcohort. The genetic background of this cohort includes a mutation in Arhgap19, but genetic crosses showed that an unknownsecond-site mutation likely caused the induced circling behavior...
January 10, 2017: Journal of the American Association for Laboratory Animal Science: JAALAS
https://www.readbyqxmd.com/read/28073433/misperceptions-and-parkinson-s-disease
#18
REVIEW
Joseph H Friedman
Most of the neurobehavioral aspects of Parkinson's disease have been well established and studied, but many are not well known, and hardly studied. This article focuses on several behavioral abnormalities that are common, and frequently cause difficulty for the patient and family due to lack of recognition as part of the disease. While it is well known that L-Dopa dyskinesias are frequently not recognized or under appreciated by patients, a similar lack of recognition may affect the patient's own speech volume, where their center of gravity is located, whether they are tilted to one side, and their under-recognition of others' emotional displays...
January 4, 2017: Journal of the Neurological Sciences
https://www.readbyqxmd.com/read/28070408/new-approaches-to-divorce-with-children-a-problem-of-public-health
#19
REVIEW
Vittorio Carlo Vezzetti
This broad review elaborates on the most up-to-date knowledge on biochemical and psychobiological aspects of parental loss and other childhood adversities during divorce involving minor children. So far, divorce involving minor children was unfortunately considered by authorities only as a purely juridical problem, and this approach has often allowed a completely different approach according to the Courts. Now, scientific research, also making use of animal models, is demonstrating the biological basis of the problem and the indisputable consequences on the well-being and health of children...
July 2016: Health Psychology Open
https://www.readbyqxmd.com/read/28065699/evaluation-of-mlc-performance-in-vmat-and-dynamic-imrt-by-log-file-analysis
#20
José Olasolo-Alonso, Alejandro Vázquez-Galiñanes, Santiago Pellejero-Pellejero, José Fernando Pérez-Azorín
PURPOSE: This multi-institution study assessed the positioning accuracy of multileaf collimators (MLC) by analyzing log files. It determined the main machine parameters that affect MLC positioning errors for pre-TrueBeam (Clinac) and TrueBeam linacs. METHODS: Around 30,000 dIMRT and VMAT log files belonging to 6 linacs from 4 different centers were analyzed. An in-house software was used to calculate 95th percentile and RMS error values and their correlation with certain parameters such as maximum leaf speed, mean leaf speed and gantry angle...
January 5, 2017: Physica Medica: PM
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