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https://www.readbyqxmd.com/read/28449405/the-impact-of-lesion-location-on-dysphagia-incidence-pattern-and-complications-in-acute-stroke-part-2-oropharyngeal-residue-swallow-and-cough-response-and-pneumonia
#1
S Suntrup-Krueger, A Kemmling, T Warnecke, C Hamacher, S Oelenberg, T Niederstadt, W Heindel, H Wiendl, R Dziewas
BACKGROUND AND PURPOSE: Dysphagia is a well-known complication of acute stroke. Given the complexity of cerebral swallowing control it is still difficult to predict which patients are likely to develop swallowing dysfunction based on their neuroimaging. In Part 2 of a comprehensive voxel-based imaging study, whether the location of a stroke lesion can be correlated with further dysfunctional swallowing patterns, pulmonary protective reflexes and pneumonia was evaluated. METHODS: In all, 200 acute stroke cases were investigated applying flexible endoscopic evaluation of swallowing within 96 h from admission...
April 27, 2017: European Journal of Neurology: the Official Journal of the European Federation of Neurological Societies
https://www.readbyqxmd.com/read/28449277/expertise-shapes-domain-specific-functional-cerebral-asymmetry-during-mental-imagery-the-case-of-culinary-arts-and-music
#2
Moustafa Bensafi, Arnaud Fournel, Pauline Joussain, Johan Poncelet, Lauranne Przybylski
Mental imagery in experts has been documented in visual arts, music and dance. Here, we examined this issue in an understudied art domain, namely culinary arts. Previous research investigating mental imagery in experts has reported either a stronger involvement of the right hemisphere or bilateral brain activation. The first aim of our study was to examine whether culinary arts also recruit such a hemispheric pattern specifically during odor mental imagery. In a second aim, we investigated whether expertise effects observed in a given sensory domain transfer to another modality...
April 27, 2017: European Journal of Neuroscience
https://www.readbyqxmd.com/read/28449112/phenotypic-variability-of-the-amazonian-species-rhodnius-brethesi-hemiptera-reduviidae
#3
A C Souza, S Catalá, A L Carbajal de la Fuente, A C V Junqueira
The wild species Rhodnius brethesi (Matta, 1919) (Hemiptera: Reduviidae) is found in areas of piassabais in microregion of Rio Negro, Amazonas, Brazil. Its geographical distribution overlaps the areas of Leopoldinia piassaba palm. In areas where palm trees are found, transmission cycle of Trypanosoma cruzi is related to the extractive activity of the palm fiber, exposing workers to wild vector transmission of this parasite. The close association with the palm tree L. piassaba suggests that this wild triatomine has special features in its sensory system allowing specificity of ecotope...
April 25, 2017: Journal of Medical Entomology
https://www.readbyqxmd.com/read/28448704/-retrograde-intramedullary-nail-fixation-for-charcot-neuroarthropathy
#4
E López-Gavito, N A Gómez-Fuentes, P Parra-Téllez, M Lezama-Peniche, J Vázquez-Escamilla, S R León-Hernández
Charcot arthropathy is defined as an articular degenerative, chronic, progressive disease that affects one or more peripheral joints, develops as a result of a failure in the normal sensory perception (pain and proprioception) in the innervation of joints located in the foot and ankle, is characterized by destructive bone lesions without the presence of infection. Neuropathy is directly associated with diabetes mellitus type 1 and 2. Surgery is indicated when there is severe involvement of soft tissue, foot joints are unstable, at the presence of chronic or recurrent ulcers or when the foot and ankle can not fit to a normal shoe, and had limitation to perform activities of daily living...
September 2016: Acta Ortopédica Mexicana
https://www.readbyqxmd.com/read/28448263/zinc-and-wound-healing-a-review-of-zinc-physiology-and-clinical-applications
#5
Samuel Kogan, Aditya Sood, Mark S Garnick
Our understanding of the role of zinc in normal human physiology is constantly expanding, yet there are major gaps in our knowledge with regard to the function of zinc in wound healing. This review aims to provide the clinician with sufficient understanding of zinc biology and an up-to-date perspective on the role of zinc in wound healing. Zinc is an essential ion that is crucial for maintenance of normal physiology, and zinc deficiency has many manifestations ranging from delayed wound healing to immune dysfunction and impairment of multiple sensory systems...
April 2017: Wounds: a Compendium of Clinical Research and Practice
https://www.readbyqxmd.com/read/28448025/novel-assay-for-cold-nociception-in-drosophila-larvae
#6
Heather N Turner, Christian Landry, Michael J Galko
How organisms sense and respond to noxious temperatures is still poorly understood. Further, the mechanisms underlying sensitization of the sensory machinery, such as in patients experiencing peripheral neuropathy or injury-induced sensitization, are not well characterized. The genetically tractable Drosophila model has been used to study the cells and genes required for noxious heat detection, which has yielded multiple conserved genes of interest. Little is known however about the cells and receptors important for noxious cold sensing...
April 3, 2017: Journal of Visualized Experiments: JoVE
https://www.readbyqxmd.com/read/28448016/zebrafish-in-situ-spinal-cord-preparation-for-electrophysiological-recordings-from-spinal-sensory-and-motor-neurons
#7
Rosa L Moreno, Megan Josey, Angeles B Ribera
Zebrafish, first introduced as a developmental model, have gained popularity in many other fields. The ease of rearing large numbers of rapidly developing organisms, combined with the embryonic optical clarity, served as initial compelling attributes of this model. Over the past two decades, the success of this model has been further propelled by its amenability to large-scale mutagenesis screens and by the ease of transgenesis. More recently, gene-editing approaches have extended the power of the model. For neurodevelopmental studies, the zebrafish embryo and larva provide a model to which multiple methods can be applied...
April 18, 2017: Journal of Visualized Experiments: JoVE
https://www.readbyqxmd.com/read/28447850/links-between-temporal-acuity-and-multisensory-integration-across-life-span
#8
Ryan A Stevenson, Sarah H Baum, Juliane Krueger, Paul A Newhouse, Mark T Wallace
The temporal relationship between individual pieces of information from the different sensory modalities is one of the stronger cues to integrate such information into a unified perceptual gestalt, conveying numerous perceptual and behavioral advantages. Temporal acuity, however, varies greatly over the life span. It has previously been hypothesized that changes in temporal acuity in both development and healthy aging may thus play a key role in integrative abilities. This study tested the temporal acuity of 138 individuals ranging in age from 5 to 80...
April 27, 2017: Journal of Experimental Psychology. Human Perception and Performance
https://www.readbyqxmd.com/read/28447661/the-nonsystemic-vasculitic-neuropathies
#9
REVIEW
Michael P Collins, Robert D Hadden
Nonsystemic vasculitic neuropathy (NSVN) is an under-recognized single-organ vasculitis of peripheral nerves that can only be diagnosed with a nerve biopsy. A Peripheral Nerve Society guideline group published consensus recommendations on the classification, diagnosis and treatment of NSVN in 2010, and new diagnostic criteria for vasculitic neuropathy were developed by the Brighton Collaboration in 2015. In this Review, we provide an update on the classification, diagnosis and treatment of NSVN. NSVN subtypes include Wartenberg migratory sensory neuropathy and postsurgical inflammatory neuropathy...
April 27, 2017: Nature Reviews. Neurology
https://www.readbyqxmd.com/read/28447609/spatial-working-memory-alters-the-efficacy-of-input-to-visual-cortex
#10
Yaser Merrikhi, Kelsey Clark, Eddy Albarran, Mohammadbagher Parsa, Marc Zirnsak, Tirin Moore, Behrad Noudoost
Prefrontal cortex modulates sensory signals in extrastriate visual cortex, in part via its direct projections from the frontal eye field (FEF), an area involved in selective attention. We find that working memory-related activity is a dominant signal within FEF input to visual cortex. Although this signal alone does not evoke spiking responses in areas V4 and MT during memory, the gain of visual responses in these areas increases, and neuronal receptive fields expand and shift towards the remembered location, improving the stimulus representation by neuronal populations...
April 27, 2017: Nature Communications
https://www.readbyqxmd.com/read/28447566/pain-sensory-disturbances-and-psychological-distress-are-common-sequelae-after-treatment-of-ductal-carcinoma-in-situ-a-cross-sectional-study
#11
Birgitte Goldschmidt Mertz, Helle Molter Duriaud, Niels Kroman, Kenneth Geving Andersen
Sequelae such as pain, sensory disturbances and psychological distress are well known after treatment for invasive breast cancer (IBC). Patients treated for ductal carcinoma in situ (DCIS) receive a similar treatment as low-risk IBC. The aim of this cross-sectional study was to describe prevalence of postoperative pain, sensory disturbances, psychological distress and rehabilitation needs among Danish women with DCIS. METHODS: A total of 574 women treated for DCIS in Denmark in 2013 and 2014 were enrolled and 473 (82%) completed a detailed questionnaire on demographic factors, pain, sensory disturbances, psychological aspects and rehabilitation needs 1-3 years after surgery...
May 2017: Acta Oncologica
https://www.readbyqxmd.com/read/28447472/four-year-reciprocal-relationships-between-personality-and-functional-ability-in-older-adults-with-and-without-sensory-impairment-focus-on-neuroticism-and-agreeableness
#12
Markus Wettstein, Hans-Werner Wahl, Vera Heyl
OBJECTIVES: Personality traits have been found to influence health and functional ability (FA) via multiple pathways. However, personality traits may also change in reaction to constraints in FA, particularly in more vulnerable individuals with high risk of decline in independent functioning in daily life (e.g. older adults with sensory impairment). Therefore, conceptually anchored in the World Health Organization's International Classification of Functioning, Disability and Health (ICF model), this study investigated reciprocal relationships between personality, focusing on neuroticism and agreeableness, and indicators of FA (i...
April 27, 2017: Aging & Mental Health
https://www.readbyqxmd.com/read/28447245/neuroanatomical-variations-as-a-function-of-experience-in-a-complex-daily-task-a-vbm-and-dti-study-on-driving-experience
#13
Alberto Megías, D Petrova, J F Navas, A Cándido, A Maldonado, A Catena
Complex tasks require the learning and integration of multiple cognitive, sensory, and psychomotor skills for correct execution. Driving-related skills are developed step by step through the increase of mileage driven and the accumulation of practice in different traffic situations. The acquisition of these skills should be reflected in the brain structure. However, no previous studies have explored brain structural variations associated with driving experience. The aim of the present study was to investigate whether driving frequency, defined as average annual driving mileage, is related to neuroanatomical variations in gray matter (GM) volume and white matter (WM) integrity using voxel-based morphometry (VBM) and DTI-based fractional anisotropy (FA), respectively...
April 26, 2017: Brain Imaging and Behavior
https://www.readbyqxmd.com/read/28447211/paclitaxel-induced-sensory-peripheral-neuropathy-is-associated-with-an-abcb1-single-nucleotide-polymorphism-and-older-age-in-japanese
#14
Yuko Tanabe, Chikako Shimizu, Akinobu Hamada, Kenji Hashimoto, Kazutaka Ikeda, Daisuke Nishizawa, Junko Hasegawa, Akihiko Shimomura, Yukinori Ozaki, Nobuko Tamura, Harukaze Yamamoto, Mayu Yunokawa, Kan Yonemori, Toshimi Takano, Hidetaka Kawabata, Kenji Tamura, Yasuhiro Fujiwara
PURPOSE: Whether age and inter-individual variability of pharmacogenetics are risk factors for paclitaxel-induced peripheral neuropathy (PIPN) is inconclusive. This study was conducted to evaluate the influence of previously investigated single nucleotide polymorphisms (SNPs) and age, using genotype data from a prospective study of paclitaxel-related toxicity in Japanese patients with breast cancer. METHODS: Peripheral blood mononuclear cells from 127 Japanese women with breast cancer who received weekly adjuvant paclitaxel were used to genotypes SLCO1B3 T334G (rs4149117), CYP2C8 A1196G (rs10509681), ABCB1 C1236T (rs1128503), ABCB1 G2677T/A (rs2032582), and ABCB1 C3435T (rs1045642)...
April 26, 2017: Cancer Chemotherapy and Pharmacology
https://www.readbyqxmd.com/read/28447086/ultrasound-neuro-modulation-chip-activation-of-sensory-neurons-in-caenorhabditis-elegans-by-surface-acoustic-waves
#15
Wei Zhou, Jingjing Wang, Kaiyue Wang, Bin Huang, Lili Niu, Fei Li, Feiyan Cai, Yan Chen, Xin Liu, Xiaoyan Zhang, Hankui Cheng, Lijun Kang, Long Meng, Hairong Zheng
Ultrasound neuro-modulation has gained increasing attention as a non-invasive method. In this paper, we present an ultrasound neuro-modulation chip, capable of initiating reversal behaviour and activating neurons of C. elegans under the stimulation of a single-shot, short-pulsed ultrasound. About 85.29% ± 6.17% of worms respond to the ultrasound stimulation exhibiting reversal behaviour. Furthermore, the worms can adapt to the ultrasound stimulation with a lower acoustic pulse duration of stimulation. In vivo calcium imaging shows that the activity of ASH, a polymodal sensory neuron in C...
April 27, 2017: Lab on a Chip
https://www.readbyqxmd.com/read/28446872/a-neurocomputational-model-of-goal-directed-navigation-in-insect-inspired-artificial-agents
#16
Dennis Goldschmidt, Poramate Manoonpong, Sakyasingha Dasgupta
Despite their small size, insect brains are able to produce robust and efficient navigation in complex environments. Specifically in social insects, such as ants and bees, these navigational capabilities are guided by orientation directing vectors generated by a process called path integration. During this process, they integrate compass and odometric cues to estimate their current location as a vector, called the home vector for guiding them back home on a straight path. They further acquire and retrieve path integration-based vector memories globally to the nest or based on visual landmarks...
2017: Frontiers in Neurorobotics
https://www.readbyqxmd.com/read/28446588/hierarchical-differences-in-population-coding-within-auditory-cortex
#17
Joshua David Downer, Mamiko Niwa, Mitchell L Sutter
Most models of auditory cortical (AC) population coding have focused on primary auditory cortex (A1). Thus, our understanding of how neural coding for sounds progresses along the cortical hierarchy remains obscure. To illuminate this, we recorded from AC fields, A1 and middle-lateral belt (ML) of rhesus macaques. We presented amplitude-modulated (AM) noise during both passive listening and while the animals performed an AM detection task ("Active" condition). In both fields, neurons exhibit monotonic AM-depth tuning, with A1 neurons mostly exhibiting increasing rate-depth functions and ML neurons ~evenly distributed between increasing and decreasing functions...
April 26, 2017: Journal of Neurophysiology
https://www.readbyqxmd.com/read/28446583/a-shared-neural-integrator-for-human-posture-control
#18
Stephanie E Haggerty, Amy R Wu, Kathleen H Sienko, Arthur D Kuo
Control of standing posture requires fusion of multiple inputs including visual, vestibular, somatosensory, and other sensors, each having distinct dynamics. The semicircular canals, for example, have a high-pass filter response to angular velocity, quickly sensing a step change in head rotational velocity followed by a decay. To stabilize gaze despite this decay, the central nervous system supplies a neural "velocity storage" integrator, a filter that extends the angular velocity signal. Similar filtering might contribute temporal dynamics to posture control, as suggested by some state estimation models...
April 26, 2017: Journal of Neurophysiology
https://www.readbyqxmd.com/read/28446581/cl-channel-is-required-for-cxcl10-induced-neuronal-activation-and-itch-response-in-a-murine-model-of-allergic-contact-dermatitis
#19
Lintao Qu, Kai Fu, Steven G Shimada, Robert H LaMotte
Persistent itch often accompanies allergic contact dermatitis (ACD), but the underlying mechanisms remain largely unexplored. We previously demonstrated that CXCL10/ CXCR3 signaling activated a subpopulation of cutaneous primary sensory neurons and mediated itch response after contact hypersensitivity (CHS), a murine model of ACD, induced by squaric acid dibutylester. The purpose of this study was to determine the ionic mechanisms underlying CXCL10-induced neuronal activation and allergic itch. In whole-cell recordings, CXCL10 triggered a current in dorsal root ganglion (DRG) neurons innervating the area of CHS...
April 26, 2017: Journal of Neurophysiology
https://www.readbyqxmd.com/read/28446579/modulation-of-long-latency-afferent-inhibition-by-the-amplitude-of-sensory-afferent-volley
#20
Claudia V Turco, Jenin El-Sayes, Hunter J Fassett, Robert Chen, Aimee Jennifer Nelson
Long-latency afferent inhibition (LAI) is the inhibition of the transcranial magnetic stimulation (TMS) motor-evoked potentials (MEP) by the sensory afferent volley following electrical stimulation of a peripheral nerve. It is unknown how the activation of sensory afferent fibres relates to the magnitude of LAI. This study investigated the relationship between LAI and the sensory nerve action potentials (SNAP) from the median nerve (MN) and the digital nerves (DN) of the second digit. LAI was obtained by delivering nerve stimulation 200 ms prior to a TMS pulse delivered over the motor cortex...
April 26, 2017: Journal of Neurophysiology
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