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https://www.readbyqxmd.com/read/28537784/the-dangerousness-of-mountain-recreation-a-quantitative-overview-of-fatal-and-non-fatal-accidents-in-france
#1
Bastien Soulé, Brice Lefèvre, Eric Boutroy
In France, there is a growing enthusiasm for outdoor sports and recreation. In the meantime, the risk of both severe and frequent injury associated with active pursuits in mountain areas is acknowledged. This paper tackles accidents related to mountain sports, with a focus on three critical activities: hiking, mountaineering and ski touring. The aim consists of estimating the actual number of accidents (whether they entailed deaths or injuries) in the three above-mentioned activities. In order to align the information collected, then provide estimations based on the reasoned crossing of these secondary data, we consulted and summarised all the databases available on the French territory...
May 24, 2017: European Journal of Sport Science
https://www.readbyqxmd.com/read/28535277/sensory-impairments-and-cognitive-function-in-middle-aged-adults
#2
Carla R Schubert, Karen J Cruickshanks, Mary E Fischer, Yanjun Chen, Barbara E K Klein, Ronald Klein, A Alex Pinto
Background: Hearing, visual, and olfactory impairments have been associated with cognitive impairment in older adults but less is known about associations with cognitive function in middle-aged adults. Methods: Sensory and cognitive functions were measured on participants in the baseline examination (2005-2008) of the Beaver Dam Offspring Study. Cognitive function was measured with the Trail Making tests A (TMTA) and B (TMTB) and the Grooved Peg Board test. Pure-tone audiometry, Pelli-Robson letter charts, and the San Diego Odor Identification test were used to measure hearing, contrast sensitivity, and olfaction, respectively...
May 23, 2017: Journals of Gerontology. Series A, Biological Sciences and Medical Sciences
https://www.readbyqxmd.com/read/28534428/clinimetric-validity-of-the-trail-making-test-czech-version-in-parkinson-s-disease-and-normative-data-for-older-adults
#3
Ondrej Bezdicek, Hana Stepankova, Bradley N Axelrod, Tomas Nikolai, Zdenek Sulc, Robert Jech, Evžen Růžička, Miloslav Kopecek
OBJECTIVE: The influence of demographic variables on the Trail Making Test (TMT) performance in older individuals and empirical findings on clinical validity in predementia states, such as Parkinson's disease mild cognitive impairment (PD-MCI), are limited. The principal aim of this study was to add normative data for the Czech population of older adults and explore the clinimetric properties between PD-MCI and PD patients with normal cognition (PD-NC). METHOD: The study included 125 PD patients classified as 77 PD-MCI and 48 PD-NC and 528 older individuals (60-74 years, further subdivided for normative tables into 60-64, 65-69 and 70-74 age groups) and very old individuals (aged 75-96, further subdivided into 75-79, 80-84, 85-96) cognitively intact Czech adults...
May 23, 2017: Clinical Neuropsychologist
https://www.readbyqxmd.com/read/28533517/vortioxetine-reduces-bold-signal-during-performance-of-the-n-back-working-memory-task-a-randomised-neuroimaging-trial-in-remitted-depressed-patients-and-healthy-controls
#4
J Smith, M Browning, S Conen, R Smallman, J Buchbjerg, K G Larsen, C K Olsen, S R Christensen, G R Dawson, J F Deakin, P Hawkins, R Morris, G Goodwin, C J Harmer
Cognitive dysfunction is common in depression during both acute episodes and remission. Vortioxetine is a novel multimodal antidepressant that has improved cognitive function including executive function in depressed patients in randomised placebo-controlled clinical trials. However, it is unclear whether vortioxetine is able to target directly the neural circuitry implicated in the cognitive deficits in depression. Remitted depressed (n=48) and healthy volunteers (n=48) were randomised to receive 14 days treatment with 20 mg vortioxetine or placebo in a double-blind design...
May 23, 2017: Molecular Psychiatry
https://www.readbyqxmd.com/read/28531132/effects-of-%C3%AE-carotene-and-its-cleavage-products-in-primary-pneumocyte-type-ii-cells
#5
Cornelia Haider, Franziska Ferk, Ekramije Bojaxhi, Giuseppe Martano, Hanno Stutz, Nikolaus Bresgen, Siegfried Knasmüller, Avdulla Alija, Peter M Eckl
β-Carotene has been shown to increase the risk of developing lung cancer in smokers and asbestos workers in two large scale trails, the Beta-Carotene and Retinol Efficacy Trial (CARET) and the Alpha-Tocopherol Beta-carotene Cancer Prevention Trial (ATBC). Based on this observation, it was proposed that genotoxic oxidative breakdown products may cause this effect. In support of this assumption, increased levels of sister chromatid exchanges, micronuclei, and chromosomal aberrations were found in primary hepatocyte cultures treated with a mixture of cleavage products (CPs) and the major product apo-8'carotenal...
May 21, 2017: Antioxidants (Basel, Switzerland)
https://www.readbyqxmd.com/read/28530483/carotidynia-in-high-altitude-travelers
#6
Andrea Parra, Tamuru Okada, Peter H Lin
Background Carotidynia is characterized by focal pain and tenderness of the carotid artery without associated hemodynamic or structural abnormalities. Carotid artery pathology has also been known to occur in high altitude due to aberrant baroreceptor response in the carotid bulb. Case Presentation We herein report two cases of high altitude-related idiopathic carotidynia. The first patient was a geologist who performed oil reserve survey in the Alaska Mountain, while the second patient was hiking in a mountain trail in Peru...
January 1, 2017: Vascular
https://www.readbyqxmd.com/read/28529838/large-scale-energy-budget-of-impulsive-magnetic-reconnection-theory-and-simulation
#7
S A Kiehas, N N Volkonskaya, V S Semenov, N V Erkaev, I V Kubyshkin, I V Zaitsev
We evaluate the large-scale energy budget of magnetic reconnection utilizing an analytical time-dependent impulsive reconnection model and a numerical 2-D MHD simulation. With the generalization to compressible plasma, we can investigate changes in the thermal, kinetic, and magnetic energies. We study these changes in three different regions: (a) the region defined by the outflowing plasma (outflow region, OR), (b) the region of compressed magnetic fields above/below the OR (traveling compression region, TCR), and (c) the region trailing the OR and TCR (wake)...
March 2017: Journal of Geophysical Research. Space Physics
https://www.readbyqxmd.com/read/28529641/multifunctional-nucleus-targeting-nanoparticles-with-ultra-high-gene-transfection-efficiency-for-in-vivo-gene-therapy
#8
Ling Li, Xia Li, Yuzhe Wu, Linjiang Song, Xi Yang, Tao He, Ning Wang, Suleixin Yang, Yan Zeng, Qinjie Wu, Zhiyong Qian, Yuquan Wei, Changyang Gong
Cancer stem cell-like cells (CSCL) are responsible for tumor recurrence associated with conventional therapy (e.g. surgery, radiation, and chemotherapy). Here, we developed a novel multifunctional nucleus-targeting nanoparticle-based gene delivery system which is capable of targeting and eradicating CSCL. These nanoparticles can facilitate efficient endosomal escape and spontaneously penetrate into nucleus without additional nuclear localization signal. They also induced extremely high gene transfection efficiency (>95%) even in culture medium containing 30% serum, which significantly surpassed that of some commercial transfection reagents, such as Lipofectamine 2000 and Lipofectamine 3000 etc...
2017: Theranostics
https://www.readbyqxmd.com/read/28529596/andrographolide-induces-apoptotic-and-non-apoptotic-death-and-enhances-tumor-necrosis-factor-related-apoptosis-inducing-ligand-mediated-apoptosis-in-gastric-cancer-cells
#9
Sung-Chul Lim, Ho Jong Jeon, Keun Hong Kee, Mi Ja Lee, Ran Hong, Song Iy Han
Andrographolide, a natural compound isolated from Andrographis paniculata, has been reported to possess antitumor activity. In the present study, the effect of andrographolide in human gastric cancer (GC) cells was investigated. Andrographolide induced cell death with apoptotic and non-apoptotic features. At a low concentration, andrographolide potentiated apoptosis and reduction of clonogenicity triggered by recombinant human tumor necrosis factor-related apoptosis-inducing ligand (rhTRAIL). Exposure of GC cells to andrographolide altered the expression level of several growth-inhibiting and apoptosis-regulating proteins, including death receptors...
May 2017: Oncology Letters
https://www.readbyqxmd.com/read/28529384/the-pelskin-project-part-v-towards-the-control-of-the-flow-around-aerofoils-at-high-angle-of-attack-using-a-self-activated-deployable-flap
#10
Marco E Rosti, Laura Kamps, Christoph Bruecker, Mohammad Omidyeganeh, Alfredo Pinelli
During the flight of birds, it is often possible to notice that some of the primaries and covert feathers on the upper side of the wing pop-up under critical flight conditions, such as the landing approach or when stalking their prey (see Fig. 1) . It is often conjectured that the feathers pop up plays an aerodynamic role by limiting the spread of flow separation . A combined experimental and numerical study was conducted to shed some light on the physical mechanism determining the feathers self actuation and their effective role in controlling the flow field in nominally stalled conditions...
2017: Meccanica
https://www.readbyqxmd.com/read/28529383/the-pelskin-project-part-ii-investigating-the-physical-coupling-between-flexible-filaments-in-an-oscillating-flow
#11
Alistair Revell, Joseph O'Connor, Abhishek Sarkar, Cuicui Li, Julien Favier, Laura Kamps, Christoph Brücker
The fluid-structure interaction mechanisms of a coating composed of flexible flaps immersed in a periodically oscillating channel flow is here studied by means of numerical simulation, employing the Euler-Bernoulli equations to account for the flexibility of the structures. A set of passively actuated flaps have previously been demonstrated to deliver favourable aerodynamic impact when attached to a bluff body undergoing periodic vortex shedding. As such, the present configuration is identified to provide a useful test-bed to better understand this mechanism, thought to be linked to experimentally observed travelling waves...
2017: Meccanica
https://www.readbyqxmd.com/read/28528238/effects-of-grab-bar-on-utilized-friction-and-dynamic-stability-when-elderly-people-enter-the-bathtub
#12
Yusuke Sekiguchi, Tomohisa Kato, Keita Honda, Hiroyasu Kanetaka, Shin-Ichi Izumi
BACKGROUND: The effect of the grab bar on dynamic stability when elderly people enter the bathtub remains unclear. The purpose of the present study is to examine the age-related effect of the grab bar on dynamic stability during lateral stepping over an obstacle when entering bathtub. METHODS: Sixteen young, healthy adults and sixteen elderly adults participated. The subjects performed lateral stepping over an obstacle with and without vertical and horizontal bars...
May 10, 2017: Clinical Biomechanics
https://www.readbyqxmd.com/read/28527207/beyond-a-differential-diagnosis-cognitive-and-morphometric-decoding-of-information-processing-speed-in-senior-adults-with-dsm-5-mild-neurocognitive-disorders
#13
Hanna Lu, Sandra S M Chan, Ada W T Fung, Linda C W Lam
BACKGROUND: Processing speed has been highlighted as a diagnostic item for neurocognitive disorders (NCD) in DSM-5. The utility of information processing speed (IPS) enclosed with multiscale constructs in the diagnosis of NCD warrants exploration. OBJECTIVE: We aimed to investigate the IPS with two types of measurements in the patients with NCD due to vascular disease (NCD-vascular) and NCD due to Alzheimer's disease (NCD-AD), and examine the associations between IPS measures and morphometric features...
May 13, 2017: Journal of Alzheimer's Disease: JAD
https://www.readbyqxmd.com/read/28526295/large-scale-exploratory-genetic-analysis-of-cognitive-impairment-in-parkinson-s-disease
#14
Ignacio F Mata, Catherine O Johnson, James B Leverenz, Daniel Weintraub, John Q Trojanowski, Vivianna M Van Deerlin, Beate Ritz, Rebecca Rausch, Stewart A Factor, Cathy Wood-Siverio, Joseph F Quinn, Kathryn A Chung, Amie L Peterson-Hiller, Alberto J Espay, Fredy J Revilla, Johnna Devoto, Dora Yearout, Shu-Ching Hu, Brenna A Cholerton, Thomas J Montine, Karen L Edwards, Cyrus P Zabetian
Cognitive impairment is a common and disabling problem in Parkinson's disease (PD). Identification of genetic variants that influence the presence or severity of cognitive deficits in PD might provide a clearer understanding of the pathophysiology underlying this important nonmotor feature. We genotyped 1105 PD patients from the PD Cognitive Genetics Consortium for 249,336 variants using the NeuroX array. Participants underwent assessments of learning and memory (Hopkins Verbal Learning Test-Revised [HVLT-R]), working memory/executive function (Letter-Number Sequencing and Trail Making Test [TMT] A and B), language processing (semantic and phonemic verbal fluency), visuospatial abilities (Benton Judgment of Line Orientation [JoLO]), and global cognitive function (Montreal Cognitive Assessment)...
April 20, 2017: Neurobiology of Aging
https://www.readbyqxmd.com/read/28524007/the-proinflammatory-cytokine-gitrl-contributes-to-trail-mediated-neurotoxicity-in-the-hcn-2-human-neuronal-cell-line
#15
Giulia Di Benedetto, Salvatore Saccone, Laurence Lempereur, Nicole Ronsisvalle, Giuseppe Nocentini, Rodolfo Bianchini, Carlo Riccardi, Renato Bernardini, Giuseppina Cantarella
Cytokines belonging to the TNF superfamily play a relevant role in neurodegenerative processes. Tumor Necrosis Factor-Related Apoptosis-Inducing Ligand (TRAIL), released during neuronal injury, has proven to potently mediate and sustain neurotoxic processes leading to neuronal death. Similarly to TRAIL, the cytokine Glucocorticoid-induced TNF receptor ligand (GITRL) is able to transduce proapoptotic signals. In spite of the array of reports suggesting relationships between TRAIL and other cytokines, scanty data are, so far, available about a GITRL/TRAIL crosstalk...
May 18, 2017: Current Alzheimer Research
https://www.readbyqxmd.com/read/28523646/phylogenetics-and-ecomorphology-of-emarginate-primary-feathers
#16
Brett Klaassen van Oorschot, Ho Kwan Tang, Bret W Tobalske
Wing tip slots are a distinct morphological trait broadly expressed across the avian clade, but are generally perceived to be unique to soaring raptors. These slots are the result of emarginations on the distal leading and trailing edges of primary feathers, and allow the feathers to behave as individual airfoils. Research suggests these emarginate feathers are an adaptation to increase glide efficiency by mitigating induced drag in a manner similar to aircraft winglets. If so, we might expect birds known for gliding and soaring to exhibit emarginate feather morphology; however, that is not always the case...
May 18, 2017: Journal of Morphology
https://www.readbyqxmd.com/read/28523229/strategy-based-reasoning-training-modulates-cortical-thickness-and-resting-state-functional-connectivity-in-adults-with-chronic-traumatic-brain-injury
#17
Kihwan Han, Rebecca A Davis, Sandra B Chapman, Daniel C Krawczyk
INTRODUCTION: Prior studies have demonstrated training-induced changes in the healthy adult brain. Yet, it remains unclear how the injured brain responds to cognitive training months-to-years after injury. METHODS: Sixty individuals with chronic traumatic brain injury (TBI) were randomized into either strategy-based (N = 31) or knowledge-based (N = 29) training for 8 weeks. We measured cortical thickness and resting-state functional connectivity (rsFC) before training, immediately posttraining, and 3 months posttraining...
May 2017: Brain and Behavior
https://www.readbyqxmd.com/read/28521465/tumor-necrosis-factor-related-apoptosis-inducing-ligand-inhibits-proliferation-and-induces-apoptosis-of-prostate-and-bladder-cancer-cells
#18
Lin Hao, Yan Zhao, Zhi-Gang Li, Hou-Guang He, Qing Liang, Zhi-Guo Zhang, Zhen-Duo Shi, Pei-Ying Zhang, Cong-Hui Han
The effect of recombinant and purified tumor necrosis factor-related apoptosis-inducing ligand (TRAIL) on the proliferation and apoptosis of PC-3 prostate cancer cells and the 5637 bladder cancer cells were investigated. We used a cell proliferation assay and flow cytometry to measure the proliferation and apoptosis of cancer cells after 24-h incubation of PC-3 and 5637 cells with different concentrations of TRAIL. PC-3 cell proliferation rate significantly decreased when TRAIL was used at concentrations of 20, 40, 80 and 160 ng/ml compared with the untreated group...
May 2017: Oncology Letters
https://www.readbyqxmd.com/read/28521307/downregulation-of-x-linked-inhibitor-of-apoptosis-protein-by-7-benzylidenenaltrexone-maleate-sensitizes-pancreatic-cancer-cells-to-trail-induced-apoptosis
#19
So Young Kim, Sojung Park, SeonA Yoo, Jin Kyung Rho, Eun Sung Jun, Suhwan Chang, Kyung Kon Kim, Song Cheol Kim, Inki Kim
Tumor necrosis factor-related apoptosis-inducing ligand (TRAIL) is a potential biological anticancer agent. However, a wide range of human primary cancers, including pancreatic cancer, display resistance to apoptosis induction by TRAIL. Therefore, this resistance needs to be overcome to allow TRAIL to be successfully used in cancer therapy. In this study, we performed a compound screen to isolate TRAIL sensitizers and found that one of the identified compounds, 7-benzylidenenaltrexone maleate (BNTX), sensitized pancreatic cancer cells to TRAIL-induced apoptotic cell death...
May 12, 2017: Oncotarget
https://www.readbyqxmd.com/read/28521297/human-menstrual-blood-derived-mesenchymal-stem-cells-as-a-cellular-vehicle-for-malignant-glioma-gene-therapy
#20
Xiao-Jun Wang, Bing-Yu Xiang, Ya-Hui Ding, Lu Chen, Hai Zou, Xiao-Zhou Mou, Charlie Xiang
Despite many advances in conventional treatment strategies, there is no effective treatment modality for malignant gliomas. Gene therapy may offer a promising option for gliomas and several gene therapy approaches have shown anti-tumor efficiency in previous studies. Mesenchymal stem cell-based gene therapies, in which stem cells are genetically engineered to express therapeutic molecules, have shown tremendous potential because of their innate homing ability. In this study, human menstrual blood-derived MSCs (MenSC), a novel type of multipotential MSCs displays tropism for human malignant glioma when used as a gene delivery vehicle for therapeutics...
May 4, 2017: Oncotarget
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