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https://www.readbyqxmd.com/read/27905365/-gait-disorders-and-postural-instability-in-patients-with-an-essential-tremor
#1
S V Vasichkin, O S Levin
AIM: To study gait disorders and postural instability in patients with essential tremor (ET). MATERIAL AND METHODS: Forty patients with ET, aged from 29 to 82 years, (mean 64.2±13.0) were examined. Tandem walk, tremor, stability and stabilometry were studied. RESULTS AND CONCLUSION: A half of the patients had gait disorders and postural instability. Though these disorders were mild to moderate, they caused significant subjective discomfort and influenced quality of life...
2016: Zhurnal Nevrologii i Psikhiatrii Imeni S.S. Korsakova
https://www.readbyqxmd.com/read/27901517/ideomotor-limb-apraxia-as-a-staging-tool-in-individuals-with-alzheimer-s-disease-iliad
#2
William D Soulsby, Nezar El-Ruwie, Shravan Gatla, Katelyn Anderson Zimmer, Safa Najmi, Alexander Chen, John T Chibnall, George T Grossberg
BACKGROUND: Ideomotor apraxia (IMA) is known to affect individuals with Alzheimer's disease (AD). Combined with impaired cognitive function, IMA can support evidence of probable AD. However, apraxia is a condition that is difficult to diagnose. The Postural Knowledge Test (PKT), developed by Mozaz et al, was designed to easily identify limb apraxia in multiple sclerosis yet demonstrated potential utility for AD. ILIAD is a pilot study to investigate correlation between the PKT and Mini-Mental State Examination (MMSE)...
November 2016: Annals of Clinical Psychiatry: Official Journal of the American Academy of Clinical Psychiatrists
https://www.readbyqxmd.com/read/27901041/bainbridge-ropers-syndrome-caused-by-loss-of-function-variants-in-asxl3-a-recognizable-condition
#3
Alma Kuechler, Johanna Christina Czeschik, Elisabeth Graf, Ute Grasshoff, Ulrike Hüffmeier, Tiffany Busa, Stefanie Beck-Woedl, Laurence Faivre, Jean-Baptiste Rivière, Ingrid Bader, Johannes Koch, André Reis, Ute Hehr, Olaf Rittinger, Wolfgang Sperl, Tobias B Haack, Thomas Wieland, Hartmut Engels, Holger Prokisch, Tim M Strom, Hermann-Josef Lüdecke, Dagmar Wieczorek
Truncating ASXL3 mutations were first identified in 2013 by Bainbridge et al. as a cause of syndromic intellectual disability in four children with similar phenotypes using whole-exome sequencing. The clinical features - postulated by Bainbridge et al. to be overlapping with Bohring-Opitz syndrome - were developmental delay, severe feeding difficulties, failure to thrive and neurological abnormalities. This condition was included in OMIM as 'Bainbridge-Ropers syndrome' (BRPS, #615485). To date, a total of nine individuals with BRPS have been published in the literature in four reports (Bainbridge et al...
November 30, 2016: European Journal of Human Genetics: EJHG
https://www.readbyqxmd.com/read/27852372/-evaluating-the-electrophysiological-features-of-tremor-in-parkinson-s-disease-and-essential-tremor-using-accelerometry
#4
C Y Xu, H M Yin, B R Zhang
Objective: To investigate the electrophysiological features of tremor intensity, frequency and frequency dispersion of Parkinsonian (PT group) and essential (ET group) tremors using accelerometry. Methods: The amplitude, frequency and frequency dispersion of rest tremor, postural tremor and the influence of weight on tremor of 35 PT patients and 40 ET patients in Department of Neurology, the Second Affiliated Hospital Zhejiang University School of Medicine from May 2015 to April 2016 were retrospectively analyzed and compared...
November 8, 2016: Zhonghua Yi Xue za Zhi [Chinese medical journal]
https://www.readbyqxmd.com/read/27835783/analysis-of-the-tremor-in-juvenile-myoclonic-epilepsy
#5
Zeynep Aydin-Özemir, Zeliha Matur, Betul Baykan, Başar Bilgic, Pınar Tekturk, Nerses Bebek, Candan Gurses, Hasmet Hanagasi, Ali Emre Oge
PURPOSE: We aimed to investigate juvenile myoclonic epilepsy (JME) patients complaining of tremor unrelated to valproate (VPA) treatment and evaluate if there were differences between JME patients with and without tremor and essential tremor (ET) patients to exclude comorbidity. METHODS: Fifteen JME cases with the complaint of tremor, 14 JME patients without tremor, 14 patients with ET and 14 healthy subjects (HS) were included. Regularity, frequency and amplitude of the tremor and superimposed myoclonia were assessed by accelerometric analysis...
October 26, 2016: Epilepsy Research
https://www.readbyqxmd.com/read/27832609/postural-threat-influences-vestibular-evoked-muscular-responses
#6
Shannon B Lim, Taylor W Cleworth, Brian C Horslen, Jean-Sebastien Blouin, J Timothy Inglis, Mark Gregory Carpenter
Standing balance is significantly influenced by postural threat. While this effect has been well-established, the underlying mechanisms of the effect are less understood. The involvement of the vestibular system is under current debate and recent studies that investigate the effects of height-induced postural threat on vestibular-evoked responses provide conflicting results based on kinetic (Horlsen et al. 2014) and kinematic (Osler et al. 2013) data. We examined the effect of threat of perturbation, a different form of postural threat, on coupling (cross-correlation, coherence and gain) of the vestibulo-muscular relationship in 25 participants who maintained standing balance...
November 9, 2016: Journal of Neurophysiology
https://www.readbyqxmd.com/read/27831542/a-late-cretaceous-diversification-of-asian-oviraptorid-dinosaurs-evidence-from-a-new-species-preserved-in-an-unusual-posture
#7
Junchang Lü, Rongjun Chen, Stephen L Brusatte, Yangxiao Zhu, Caizhi Shen
Oviraptorosaurs are a bizarre group of bird-like theropod dinosaurs, the derived forms of which have shortened, toothless skulls, and which diverged from close relatives by developing peculiar feeding adaptations. Although once among the most mysterious of dinosaurs, oviraptorosaurs are becoming better understood with the discovery of many new fossils in Asia and North America. The Ganzhou area of southern China is emerging as a hotspot of oviraptorosaur discoveries, as over the past half decade five new monotypic genera have been found in the latest Cretaceous (Maastrichtian) deposits of this region...
November 10, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27723716/-gait-disorders-and-postural-instability-in-patients-with-an-essential-tremor
#8
S V Vasichkin, O S Levin
AIM: To study gait disorders and postural instability in patients with essential tremor (ET). MATERIAL AND METHODS: Forty patients with ET, aged from 29 to 82 years, (mean 64.2±13.0) were examined. Tandem walk, tremor, stability and stabilometry were studied. RESULTS AND CONCLUSION: A half of the patients had gait disorders and postural instability. Though these disorders were mild to moderate, they caused significant subjective discomfort and influenced quality of life...
2016: Zhurnal Nevrologii i Psikhiatrii Imeni S.S. Korsakova
https://www.readbyqxmd.com/read/27676987/what-is-the-relation-between-unilateral-spatial-neglect-and-verticality-perception-biases-after-stroke
#9
Marie Jaeger, Eve Dupierrix, Céline Piscicelli, Anne Chrispin, Patrice Davoine, Dominic Pérennou
OBJECTIVE: Unilateral spatial neglect (USN) and verticality perception biases are frequently associated after right hemispheric cerebral stroke (Pérennou et al., 2006). These troubles in spatial cognition have also in common to present different clinical types, according to the space considered: personal (PN) and extra-personal neglect (EPN), and biases in the visual (VV) or the postural (PV) vertical. Here, we hypothesized that PN is specially related to a biased PV, and that EPN could be more related to a biased VV...
September 2016: Annals of Physical and Rehabilitation Medicine
https://www.readbyqxmd.com/read/27676727/subjects-with-fibromyalgia-syndrome-have-a-reduction-of-balance-performance
#10
Jacques Vaillant, Sophie Pissety, Silvia Martinez, Robert Juvin
OBJECTIVE: If subjects with fibromyalgia syndrome (FMS) firstly describe painful and fatigue syndromes, secondly some of them described latent postural disorders or frailty. If decrease of postural performance has been described on osteoarthritis diseases of lower limb, it is unknown on fibromyalgia. The aim of this study was to assess clinical perform on balance and gait of patients with FMS. MATERIAL/PATIENTS AND METHODS: The sample was selected in-patients or in consultation in the rheumatology department and from those patients participating in a programme of rehabilitation...
September 2016: Annals of Physical and Rehabilitation Medicine
https://www.readbyqxmd.com/read/27635315/a-jurassic-pterosaur-from-patagonia-and-the-origin-of-the-pterodactyloid-neurocranium
#11
Laura Codorniú, Ariana Paulina Carabajal, Diego Pol, David Unwin, Oliver W M Rauhut
Pterosaurs are an extinct group of highly modified flying reptiles that thrived during the Mesozoic. This group has unique and remarkable skeletal adaptations to powered flight, including pneumatic bones and an elongate digit IV supporting a wing-membrane. Two major body plans have traditionally been recognized: the primitive, primarily long-tailed paraphyletic "rhamphorhynchoids" (preferably currently recognized as non-pterodactyloids) and the derived short-tailed pterodactyloids. These two groups differ considerably in their general anatomy and also exhibit a remarkably different neuroanatomy and inferred head posture, which has been linked to different lifestyles and behaviours and improved flying capabilities in these reptiles...
2016: PeerJ
https://www.readbyqxmd.com/read/27601251/the-direction-of-the-postural-response-to-a-vestibular-perturbation-is-mediated-by-the-cerebellar-vermis
#12
Chris K Lam, Craig D Tokuno, W Richard Staines, Leah R Bent
When an electrical stimulus is applied to perturb the vestibular system, a postural response is generated orthogonal to head orientation. It has previously been shown that there is a convergence of neck proprioceptive and vestibular input within the cerebellum to provide a head-on-body reference frame (Manzoni et al. in Neuroscience 93:1095-1107, 1999). The objective of this experiment was to determine whether the direction of the postural response to a vestibular perturbation is modulated when function of the cerebellar vermis is temporarily depressed...
September 6, 2016: Experimental Brain Research. Experimentelle Hirnforschung. Expérimentation Cérébrale
https://www.readbyqxmd.com/read/27514458/leg-lift-valsalva-maneuver-for-treatment-of-supraventricular-tachycardias
#13
Allison Michaud, Eddy Lang
Clinical question Can conversion to sinus rhythm for a supraventricular tachycardia be enhanced by a postural modification to the Valsalva maneuver? Article chosen Appelboam A, Reuben A, Mann C, et al. Postural modification of the standard Valsalva manoeuvre for emergency treatment of supraventricular tachycardias (REVERT): a randomised controlled trial. Lancet 2015;386(10005):1747-53. 1 OBJECTIVE: To determine effectiveness of a postural modification of the Valsalva involving leg elevation and supine positioning...
August 12, 2016: CJEM
https://www.readbyqxmd.com/read/27511464/clinical-validation-of-a-precision-electromagnetic-tremor-measurement-system-in-participants-receiving-deep-brain-stimulation-for-essential-tremor
#14
Thushara Perera, Shivanthan A C Yohanandan, Wesley Thevathasan, Mary Jones, Richard Peppard, Andrew H Evans, Joy L Tan, Colette M McKay, Hugh J McDermott
Tremor is characterized commonly through subjective clinical rating scales. Accelerometer-based techniques for objective tremor measurement have been developed in the past, yet these measures are usually presented as an unintuitive dimensionless index without measurement units. Here we have developed a tool (TREMBAL) to provide quantifiable and objective measures of tremor severity using electromagnetic motion tracking. We aimed to compare TREMBAL's objective measures with clinical tremor ratings and determine the test-retest reliability of our technique...
September 2016: Physiological Measurement
https://www.readbyqxmd.com/read/27481909/the-use-of-neck-support-pillows-and-postural-exercises-in-the-management-of-chronic-neck-pain
#15
Alisha N Jamal, Brian M Feldman, Eleanor Pullenayegum
OBJECTIVE: Chronic neck pain is a common problem with a profound effect on quality of life. Identifying evidence-based management strategies is fundamental in improving patient outcomes. This study is a reanalysis of the data from Helewa, et al to further characterize the effects of postural exercises and neck support pillows on neck pain. METHODS: A full factorial model was used. All interactions were analyzed adjusting for the Northwick Park Neck Pain Questionnaire (NPQ) at baseline...
October 2016: Journal of Rheumatology
https://www.readbyqxmd.com/read/27423573/reduction-in-dbs-frequency-improves-balance-difficulties-after-thalamic-dbs-for-essential-tremor
#16
Adolfo Ramirez-Zamora, Hans Boggs, Julie G Pilitsis
Essential tremor (ET) is a syndrome characterized by the presence of symmetric, moderate to high frequency postural and action tremors of the limbs. Additionally, increasing evidence indicates the occurrence of associated cerebellar features in ET patients including impaired gait and balance. Deep brain stimulation (DBS) of the ventralis intermedius (VIM) nucleus of the thalamus has been shown to be an effective treatment for medically-refractory ET tremor but its effects on balance remain unclear with conflicting results reported...
August 15, 2016: Journal of the Neurological Sciences
https://www.readbyqxmd.com/read/27352396/re-emergent-tremor-of-parkinson-s-disease-masquerading-as-essential-tremor
#17
Sarah Morgan, Elan D Louis
BACKGROUND: The re-emergent tremor of Parkinson's disease (PD) is generally recognized as a postural tremor. PHENOMENOLOGY SHOWN: A PD patient with a re-emergent tremor occurring during a task (spiral drawing), which on the surface produced a tremor that resembled that of essential tremor (ET). EDUCATIONAL VALUE: Researchers and clinicians should be aware of features of this re-emergent tremor to help distinguish it from that of ET.
2016: Tremor and Other Hyperkinetic Movements
https://www.readbyqxmd.com/read/27292926/orthostatic-intolerance-and-autonomic-dysfunction-following-bariatric-surgery-a-retrospective-study-and-review-of-the-literature
#18
REVIEW
Vanessa Ponnusamy, Andrew P Owens, Sanjay Purkayastha, Valeria Iodice, Christopher J Mathias
The prevalence and costs of the obesity epidemic and obesity-related conditions, including diabetes mellitus, is consistently increasing worldwide. Bariatric medicine is attempting to address this with weight loss and exercise programmes, and with increasing frequency, various forms of bariatric surgery. There has been considerable success reported after bariatric surgery but not without. We describe 14 patients with orthostatic intolerance (OI) post bariatric surgery. We report on OI (postural dizziness, palpitations and fainting), the results of cardiovascular autonomic testing and the associated and/or causative findings as well as reviewing the literature to consider the possible mechanisms...
July 2016: Autonomic Neuroscience: Basic & Clinical
https://www.readbyqxmd.com/read/27252984/adolescent-idiopathic-scoliosis-ais-a-multifactorial-cascade-concept-for-pathogenesis-and-embryonic-origin
#19
REVIEW
R Geoffrey Burwell, Emma M Clark, Peter H Dangerfield, Alan Moulton
This paper formulates a novel multifactorial Cascade Concept for the pathogenesis of adolescent idiopathic scoliosis (AIS). This Concept stems from the longitudinal findings of Clark et al. (J Bone Miner Res 29(8):1729-36, 2014) who identified leptin body composition factors at 10 years of age associated with a scoliosis deformity found at 15 years. We interpret these findings in the light of some concepts for AIS pathogenesis. In particular, we speculate that the leptin body composition effect is linked to central nervous system development and the initiation of the asynchronous neuro-osseous growth mechanism that involves the creation of a neuraxis tether of relative anterior vertebral overgrowth...
2016: Scoliosis and Spinal Disorders
https://www.readbyqxmd.com/read/27252095/ontogenetic-scaling-of-fore-limb-and-hind-limb-joint-posture-and-limb-bone-cross-sectional-geometry-in-vervets-and-baboons
#20
M Loring Burgess, Daniel Schmitt, Angel Zeininger, Shannon C McFarlin, Adrienne L Zihlman, John D Polk, Christopher B Ruff
OBJECTIVES: Previous studies suggest that the postures habitually adopted by an animal influence the mechanical loading of its long bones. Relatively extended limb postures in larger animals should preferentially reduce anteroposterior (A-P) relative to mediolateral (M-L) bending of the limb bones and therefore decrease A-P/M-L rigidity. We test this hypothesis by examining growth-related changes in limb bone structure in two primate taxa that differ in ontogenetic patterns of joint posture...
September 2016: American Journal of Physical Anthropology
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