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https://www.readbyqxmd.com/read/28530204/in-bed-vital-signs-monitoring-system-based-on-unobtrusive-magnetic-induction-method-with-a-concentric-planar-gradiometer
#1
Hadiseh Mahdavi, Javier Rosell-Ferrer
SIGNIFICANCE: Unobtrusive vital signs monitoring is of major importance for various medical areas such as detection and treatment of sleep disorders, monitoring neonates and burned victims, home health care and smart home applications and wearables among others. Such applications call for monitoring methods in which the patient's natural state is less interfered with. An ideal device would be non-invasive, minimally restrictive, robust enough to compensate movements of the patients, and would operate without relying on the patient's full cooperation...
June 2017: Physiological Measurement
https://www.readbyqxmd.com/read/28529870/symptom-specific-amygdala-hyperactivity-modulates-motor-control-network-in-conversion-disorder
#2
Thomas Hassa, Alexandra Sebastian, Joachim Liepert, Cornelius Weiller, Roger Schmidt, Oliver Tüscher
Initial historical accounts as well as recent data suggest that emotion processing is dysfunctional in conversion disorder patients and that this alteration may be the pathomechanistic neurocognitive basis for symptoms in conversion disorder. However, to date evidence of direct interaction of altered negative emotion processing with motor control networks in conversion disorder is still lacking. To specifically study the neural correlates of emotion processing interacting with motor networks we used a task combining emotional and sensorimotor stimuli both separately as well as simultaneously during functional magnetic resonance imaging in a well characterized group of 13 conversion disorder patients with functional hemiparesis and 19 demographically matched healthy controls...
2017: NeuroImage: Clinical
https://www.readbyqxmd.com/read/28529829/connecting-ca-2-and-lysosomes-to-parkinson-disease
#3
Bethan S Kilpatrick
The neurodegenerative movement disorder Parkinson disease (PD) is prevalent in the aged population. However, the underlying mechanisms that trigger disease are unclear. Increasing work implicates both impaired Ca(2+) signalling and lysosomal dysfunction in neuronal demise. Here I aim to connect these distinct processes by exploring the evidence that lysosomal Ca(2+) signalling is disrupted in PD. In particular, I highlight defects in lysosomal Ca(2+) content and signalling through NAADP-regulated two-pore channels in patient fibroblasts harbouring mutations in the PD-linked genes, GBA1 and LRRK2...
June 1, 2016: Messenger
https://www.readbyqxmd.com/read/28529667/motor-problems-in-children-with-neurofibromatosis-type-1
#4
André B Rietman, Rianne Oostenbrink, Sanne Bongers, Eddy Gaukema, Sandra van Abeelen, Jos G Hendriksen, Caspar W N Looman, Pieter F A de Nijs, Marie-Claire de Wit
BACKGROUND: Children with the neurogenetic disorder neurofibromatosis type 1 (NF1) often have problems with learning and behaviour. In both parent reports and neuropsychological assessment, motor problems are reported in approximately one third to one half of the children with NF1. Studies using broad motor performance test batteries with relatively large groups of children with NF1 are limited. The aim of this cross-sectional observational study was to describe the severity of motor problems in children with NF1 and to explore the predictive value of demographics, intelligence, and behavioural problems...
2017: Journal of Neurodevelopmental Disorders
https://www.readbyqxmd.com/read/28529496/treatment-of-the-mal-de-debarquement-syndrome-a-1-year-follow-up
#5
Mingjia Dai, Bernard Cohen, Catherine Cho, Susan Shin, Sergei B Yakushin
The mal de debarquement syndrome (MdDS) is a movement disorder, occurring predominantly in women, is most often induced by passive transport on water or in the air (classic MdDS), or can occur spontaneously. MdDS likely originates in the vestibular system and is unfamiliar to many physicians. The first successful treatment was devised by Dai et al. (1), and over 330 MdDS patients have now been treated. Here, we report the outcomes of 141 patients (122 females and 19 males) treated 1 year or more ago. We examine the patient's rocking frequency, body drifting, and nystagmus...
2017: Frontiers in Neurology
https://www.readbyqxmd.com/read/28528492/sagittal-plane-kinematics-of-the-jaw-and-hyolingual-apparatus-during-swallowing-in-macaca-mulatta
#6
Yuki Nakamura, Jose Iriarte-Diaz, Fritzie Arce-McShane, Courtney P Orsbon, Kevin A Brown, McKenna Eastment, Limor Avivi-Arber, Barry J Sessle, Makoto Inoue, Nicholas G Hatsopoulos, Callum F Ross, Kazutaka Takahashi
Studies of mechanisms of feeding behavior are important in a society where aging- and disease-related feeding disorders are increasingly prevalent. It is important to evaluate the clinical relevance of animal models of the disease and the control. Our present study quantifies macaque hyolingual and jaw kinematics around swallowing cycles to determine the extent to which macaque swallowing resembles that of humans. One female and one male adult Macaca mulatta were trained to feed in a primate chair. Videofluoroscopy was used to record kinematics in a sagittal view during natural feeding on solid food, and the kinematics of the hyoid bone, thyroid cartilage, mandibular jaw, and anterior-, middle-, and posterior-tongue...
May 20, 2017: Dysphagia
https://www.readbyqxmd.com/read/28528196/a-review-of-psychiatric-co-morbidity-described-in-genetic-and-immune-mediated-movement-disorders
#7
REVIEW
K J Peall, M S Lorentzos, I Heyman, M A J Tijssen, M J Owen, R C Dale, M A Kurian
Psychiatric symptoms are an increasingly recognised feature of movement disorders. Recent identification of causative genes and autoantibodies has allowed detailed analysis of aetiologically homogenous subgroups, thereby enabling determination of the spectrum of psychiatric symptoms in these disorders. This review evaluates the incidence and type of psychiatric symptoms encountered in patients with movement disorders. A broad spectrum of psychiatric symptoms was identified across all subtypes of movement disorder, with depression, generalised anxiety disorder and obsessive-compulsive disorder being most common...
May 17, 2017: Neuroscience and Biobehavioral Reviews
https://www.readbyqxmd.com/read/28526878/a-data-mining-approach-using-cortical-thickness-for-diagnosis-and-characterization-of-essential-tremor
#8
J Ignacio Serrano, Juan P Romero, Ma Dolores Del Castillo, Eduardo Rocon, Elan D Louis, Julián Benito-León
Essential tremor (ET) is one of the most prevalent movement disorders. Being that it is a common disorder, its diagnosis is considered routine. However, misdiagnoses may occur regularly. Over the past decade, several studies have identified brain morphometric changes in ET, but these changes remain poorly understood. Here, we tested the informativeness of measuring cortical thickness for the purposes of ET diagnosis, applying feature selection and machine learning methods to a study sample of 18 patients with ET and 18 age- and sex-matched healthy control subjects...
May 19, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28526642/-asleep-deep-brain-stimulation-surgery-a-critical-review-of-the-literature
#9
REVIEW
Tsinsue Chen, Zaman Mirzadeh, Francisco A Ponce
OBJECTIVE: Although performing deep brain stimulation (DBS) with the patient under general anesthesia without microelectrode recording (MER) or intraoperative test stimulation (ITS) for movement disorders ("asleep" DBS) has become increasingly popular, its feasibility is based on the untested assumption that stereotactic accuracy correlates with positive clinical outcomes. To investigate outcomes after asleep DBS without MER or neurophysiological testing, we reviewed the medical literature on the topic...
May 16, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28526280/an-overview-of-medical-risk-factors-for-childhood-psychosis-implications-for-research-and-treatment
#10
REVIEW
Marianna Giannitelli, Angèle Consoli, Marie Raffin, Renaud Jardri, Douglas F Levinson, David Cohen, Claudine Laurent-Levinson
OBJECTIVE: Psychotic disorders in childhood and early adolescence often progress to chronic schizophrenia, but in many cases there are diagnosable medical and genetic causes or risk factors. We reviewed our clinical experience and the relevant literature to identify these factors and to define their clinical features, appropriate work-up and treatment. METHOD: We reviewed the results of comprehensive medical evaluations of 160 psychotic children and adolescents in our center...
May 16, 2017: Schizophrenia Research
https://www.readbyqxmd.com/read/28525812/clinical-characteristics-and-prrt2-gene-mutation-analysis-of-sporadic-patients-with-paroxysmal-kinesigenic-dyskinesia-in-china
#11
Yu Zhang, Lin Li, Wei Chen, Jing Gan, Zhen Guo Liu
OBJECTIVE: As a rare type of movement disorder, paroxysmal kinesigenic dyskinesia mainly affects children and is associated with PRRT2 gene mutation. The objective of our study is to identify whether the sporadic patients share the same genotype-phenotype correlations as familial patients in China. PATIENTS AND METHODS: We investigated the clinical characteristics and PRRT2 gene mutations of 15 sporadic patients with paroxysmal kinesigenic dyskinesia in china. The clinical and investigational data of our patients was recorded and analyzed meticulously...
May 8, 2017: Clinical Neurology and Neurosurgery
https://www.readbyqxmd.com/read/28525628/modulation-of-the-muscle-activity-during-sleep-in-cervical-dystonia
#12
E Antelmi, R Ferri, F Provini, C Scaglione, F Mignani, F Rundo, S Vandi, M Fabbri, F Pizza, G Plazzi, P Martinelli, R Liguori
Introduction: Impaired sleep has been reported as an important non-motor feature in dystonia, but so far, subjective complaints have never been compared with nocturnal video-polysomnographic recording, which is the gold standard to assess sleep-related disorders. Methods: Twenty patients with idiopathic isolated cervical dystonia and 22 healthy controls underwent extensive clinical investigations, neurological examination and questionnaires screening for excessive daytime sleepiness and sleep-related disorders...
May 19, 2017: Sleep
https://www.readbyqxmd.com/read/28524218/-autoimmune-pathology-in-neuropaediatrics-what-aspects-have-really-undergone-a-change
#13
V Cantarin-Extremera
Autoimmune neurological diseases are an important group of pathologies in neuropaediatrics. The central nervous system was considered to be an immunologically privileged organ, as it protects itself from the surroundings by means of the blood-brain barrier. In recent years, however, reports have been published of a growing number of disorders produced by antibodies that react against neuronal or glial proteins and give rise to a wide variety of clinical conditions (epilepsy, encephalopathy, movement disorders, etc...
May 17, 2017: Revista de Neurologia
https://www.readbyqxmd.com/read/28524102/sleep-promoting-effects-and-possible-mechanisms-of-action-associated-with-a-standardized-rice-bran-supplement
#14
Hyejin Yang, Minseok Yoon, Min Young Um, Jaekwang Lee, Jonghoon Jung, Changho Lee, Yun-Tai Kim, Sangoh Kwon, Boknam Kim, Suengmok Cho
Natural sleep aids are becoming more popular due to the widespread occurrence of sleep disorders. The objective of this study was to assess the sleep-promoting effects of rice bran-a product that is considered as a functional ingredient. To evaluate the sleep-promoting effects of a standardized rice bran supplement (RBS), we employed a pentobarbital-induced sleep test and conducted analyses of sleep architecture. In addition, the effect of RBS on a caffeine-induced sleep disturbance was investigated. Oral administration of RBS (500 and 1000 mg/kg) produced a significant decrease in sleep latency and increase in sleep duration in pentobarbital-induced sleep in mice...
May 18, 2017: Nutrients
https://www.readbyqxmd.com/read/28523978/closed-loop-neuromodulation-systems-next-generation-treatments-for-psychiatric-illness
#15
Meng-Chen Lo, Alik S Widge
Despite deep brain stimulation's positive early results in psychiatric disorders, well-designed clinical trials have yielded inconsistent clinical outcomes. One path to more reliable benefit is closed-loop therapy: stimulation that is automatically adjusted by a device or algorithm in response to changes in the patient's electrical brain activity. These interventions may provide more precise and patient-specific treatments. This article first introduces the available closed-loop neuromodulation platforms, which have shown clinical efficacy in epilepsy and strong early results in movement disorders...
April 2017: International Review of Psychiatry
https://www.readbyqxmd.com/read/28521606/can-video-self-modeling-improve-affected-limb-reach-and-grasp-ability-in-stroke-patients
#16
Kylie Ann Steel, Kurt Mudie, Remi Sandoval, David Anderson, Sera Dogramaci, Mohammad Rehmanjan, Ingvars Birznieks
The authors examined whether feedforward video self-modeling (FF VSM) would improve control over the affected limb, movement self-confidence, movement self-consciousness, and well-being in 18 stroke survivors. Participants completed a cup transport task and 2 questionnaires related to psychological processes pre- and postintervention. Pretest video footage of the unaffected limb performing the task was edited to create a best-of or mirror-reversed training DVD, creating the illusion that patients were performing proficiently with the affected limb...
May 19, 2017: Journal of Motor Behavior
https://www.readbyqxmd.com/read/28521136/dopamine-depletion-impairs-bilateral-sensory-processing-in-the-striatum-in-a-pathway-dependent-manner
#17
M Ketzef, G Spigolon, Y Johansson, A Bonito-Oliva, G Fisone, G Silberberg
Parkinson's disease (PD) is a movement disorder caused by the loss of dopaminergic innervation, particularly to the striatum. PD patients often exhibit sensory impairments, yet the underlying network mechanisms are unknown. Here we examined how dopamine (DA) depletion affects sensory processing in the mouse striatum. We used the optopatcher for online identification of direct and indirect pathway projection neurons (MSNs) during in vivo whole-cell recordings. In control mice, MSNs encoded the laterality of sensory inputs with larger and earlier responses to contralateral than ipsilateral whisker deflection...
May 17, 2017: Neuron
https://www.readbyqxmd.com/read/28520803/multiple-modality-biomarker-prediction-of-cognitive-impairment-in-prospectively-followed-de-novo-parkinson-disease
#18
Chelsea Caspell-Garcia, Tanya Simuni, Duygu Tosun-Turgut, I-Wei Wu, Yu Zhang, Mike Nalls, Andrew Singleton, Leslie A Shaw, Ju-Hee Kang, John Q Trojanowski, Andrew Siderowf, Christopher Coffey, Shirley Lasch, Dag Aarsland, David Burn, Lana M Chahine, Alberto J Espay, Eric D Foster, Keith A Hawkins, Irene Litvan, Irene Richard, Daniel Weintraub
OBJECTIVES: To assess the neurobiological substrate of initial cognitive decline in Parkinson's disease (PD) to inform patient management, clinical trial design, and development of treatments. METHODS: We longitudinally assessed, up to 3 years, 423 newly diagnosed patients with idiopathic PD, untreated at baseline, from 33 international movement disorder centers. Study outcomes were four determinations of cognitive impairment or decline, and biomarker predictors were baseline dopamine transporter (DAT) single photon emission computed tomography (SPECT) scan, structural magnetic resonance imaging (MRI; volume and thickness), diffusion tensor imaging (mean diffusivity and fractional anisotropy), cerebrospinal fluid (CSF; amyloid beta [Aβ], tau and alpha synuclein), and 11 single nucleotide polymorphisms (SNPs) previously associated with PD cognition...
2017: PloS One
https://www.readbyqxmd.com/read/28520211/aging-and-parkinson-s-disease-different-sides-of-the-same-coin
#19
REVIEW
Timothy J Collier, Nicholas M Kanaan, Jeffrey H Kordower
Despite abundant epidemiological evidence in support of aging as the primary risk factor for PD, biological correlates of a connection have been elusive. In this article, we address the following question: does aging represent biology accurately characterized as pre-PD? We present evidence from our work on midbrain dopamine neurons of aging nonhuman primates that demonstrates that markers of known correlates of dopamine neuron degeneration in PD, including impaired proteasome/lysosome function, oxidative/nitrative damage, and inflammation, all increase with advancing age and are exaggerated in the ventral tier substantia nigra dopamine neurons most vulnerable to degeneration in PD...
May 18, 2017: Movement Disorders: Official Journal of the Movement Disorder Society
https://www.readbyqxmd.com/read/28520167/kmt2b-rare-missense-variants-in-generalized-dystonia
#20
Michael Zech, Robert Jech, Petra Havránková, Anna Fečíková, Riccardo Berutti, Dušan Urgošík, David Kemlink, Tim M Strom, Jan Roth, Evžen Růžička, Juliane Winkelmann
BACKGROUND: Recently a novel syndrome of childhood-onset generalized dystonia originating from mutations in lysine-specific methyltransferase 2B (KMT2B) has been reported. METHODS: We sequenced the exomes of 4 generalized dystonia-affected probands recruited from a Prague movement disorders center (Czech Republic). Bioinformatics analyses were conducted to select candidate causal variants in described dystonia-mutated genes. After cosegregation testing, checklists from the American College of Medical Genetics and Genomics were adopted to judge variant pathogenicity...
May 18, 2017: Movement Disorders: Official Journal of the Movement Disorder Society
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