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https://www.readbyqxmd.com/read/29777505/a-fingertip-force-prediction-model-for-grasp-patterns-characterised-from-the-chaotic-behaviour-of-eeg
#1
Rinku Roy, Debdeep Sikdar, Manjunatha Mahadevappa, C S Kumar
A stable grasp is attained through appropriate hand preshaping and precise fingertip forces. Here, we have proposed a method to decode grasp patterns from motor imagery and subsequent fingertip force estimation model with a slippage avoidance strategy. We have developed a feature-based classification of electroencephalography (EEG) associated with imagination of the grasping postures. Chaotic behaviour of EEG for different grasping patterns has been utilised to capture the dynamics of associated motor activities...
May 19, 2018: Medical & Biological Engineering & Computing
https://www.readbyqxmd.com/read/29777101/supramolecularly-directed-rotary-motion-in-a-photoresponsive-receptor
#2
Sander J Wezenberg, Ben L Feringa
Stimuli-controlled motion at the molecular level has fascinated chemists already for several decades. Taking inspiration from the myriad of dynamic and machine-like functions in nature, a number of strategies have been developed to control motion in purely synthetic systems. Unidirectional rotary motion, such as is observed in ATP synthase and other motor proteins, remains highly challenging to achieve. Current artificial molecular motor systems rely on intrinsic asymmetry or a specific sequence of chemical transformations...
May 18, 2018: Nature Communications
https://www.readbyqxmd.com/read/29776864/putaminal-dopamine-depletion-in-de-novo-parkinson-s-disease-predicts-future-development-of-wearing-off
#3
Su Jin Chung, Yoonju Lee, Jungsu S Oh, Jae Seung Kim, Phil Hyu Lee, Young H Sohn
INTRODUCTION: The present study aimed to investigate whether the level of presynaptic dopamine neuronal loss predicts future development of wearing-off in de novo Parkinson's disease. METHODS: This retrospective cohort study included a total of 342 non-demented patients with de novo Parkinson's disease who underwent dopamine transporter positron emission tomography scans at their initial evaluation and received dopaminergic medications for 24 months or longer. Onset of wearing-off was determined based on patients' medical records at their outpatient clinic visits every 3-6 months...
May 10, 2018: Parkinsonism & related Disorders
https://www.readbyqxmd.com/read/29776520/commercial-truck-crash-injury-severity-analysis-using-gradient-boosting-data-mining-model
#4
Zijian Zheng, Pan Lu, Brenda Lantz
INTRODUCTION: Truck crashes contribute to a large number of injuries and fatalities. This study seeks to identify the contributing factors affecting truck crash severity using 2010 to 2016 North Dakota and Colorado crash data provided by the Federal Motor Carrier Safety Administration. METHOD: To fulfill a gap of previous studies, broad considerations of company and driver characteristics, such as company size and driver's license class, along with vehicle types and crash characteristics are researched...
June 2018: Journal of Safety Research
https://www.readbyqxmd.com/read/29775564/the-antibody-rhigm22-facilitates-hippocampal-remyelination-and-ameliorates-memory-deficits-in-the-cuprizone-mouse-model-of-demyelination
#5
Charlene Cui, Jing Wang, Ariana P Mullin, Anthony O Caggiano, Tom J Parry, Raymond W Colburn, Elias Pavlopoulos
Multiple sclerosis (MS) is a chronic, inflammatory demyelinating disease of the CNS. In addition to motor, sensory and visual deficits, MS is also characterized by hippocampal demyelination and memory impairment. We recently demonstrated that a recombinant human-derived monoclonal IgM antibody, which is designated rHIgM22 and currently in clinical development for people with MS, accelerates remyelination of the corpus callosum in the brains of cuprizone-treated mice. Here, we investigated the effects of rHIgM22 in the hippocampus and on hippocampal-dependent learning and memory in the same mouse model of cuprizone-induced demyelination and spontaneous remyelination...
May 15, 2018: Brain Research
https://www.readbyqxmd.com/read/29774500/thalamocortical-dysconnectivity-in-premenstrual-syndrome
#6
Peng Liu, Ying Wei, Hai Liao, Yingying Fan, Ru Li, Nana Feng, Gaoxiong Duan, Demao Deng, Wei Qin
Premenstrual syndrome (PMS) is a menstrual cycle-related disorder. Although the precise pathophysiology is not fully understood, it is increasingly believed that the central nervous system plays a vital role in the development of PMS. The aim of this study is to elucidate specific functional connectivity between the thalamus and cerebral cortex. Resting-state functional magnetic resonance imaging (fMRI) data were obtained from 20 PMS patients and 21 healthy controls (HCs). Seed-based functional connectivity between the thalamus and six cortical regions of interest, including the prefrontal cortex (PFC), posterior parietal cortex, somatosensory cortex, motor cortex/supplementary motor area, temporal and occipital lobe, was adopted to identify specific thalamocortical connectivity in the two groups...
May 17, 2018: Brain Imaging and Behavior
https://www.readbyqxmd.com/read/29774475/neuropsychological-profiles-of-breast-cancer-and-brain-tumor-cohorts-in-northeast-ontario-canada
#7
Matias Mariani, Mark William Glister Collins
PURPOSE: As developments in cancer treatment have improved outcomes, research has increasingly focused on the role of cancer-related cognitive impairment (CRCI) in quality of life for cancer survivors. Impairment profiles have been heterogeneous across studies, necessitating the study of these effects across different cohorts. The purpose of this preliminary study is to compare the memory profiles of Northeast Ontario breast and CNS cancer patients, as there is no literature which exists for profiling CRCI within this largely rural region...
May 17, 2018: Supportive Care in Cancer: Official Journal of the Multinational Association of Supportive Care in Cancer
https://www.readbyqxmd.com/read/29774058/the-role-of-dopaminergic-immune-cell-signalling-in-poststroke-inflammation
#8
REVIEW
Daniela Talhada, Monika Rabenstein, Karsten Ruscher
Upon ischaemic stroke, brain-resident and peripheral immune cells accumulate in the central nervous system (CNS). Interestingly, these cells express pattern specific to neurotransmitter receptors and, therefore, seem to be susceptible to neurotransmitter stimulation, potentially modulating their properties and functions. One of the principal neurotransmitters in the CNS, dopamine, is involved in the regulation of processes of brain development, motor control and higher brain functions. It is constantly released in the brain and there is experimental and clinical evidence that dopaminergic signalling is involved in recovery of lost neurological function after stroke...
2018: Therapeutic Advances in Neurological Disorders
https://www.readbyqxmd.com/read/29774002/on-the-drive-specificity-of-freudian-drives-for-the-generation-of-seeking-activities-the-importance-of-the-underestimated-imperative-motor-factor
#9
Michael Kirsch, Wolfgang Mertens
Doubters of Freud's theory of drives frequently mentioned that his approach is outdated and therefore cannot be useful for solving current problems in patients with mental disorders. At present, many scientists believe that affects rather than drives are of utmost importance for the emotional life and the theoretical framework of affective neuroscience, developed by Panksepp, strongly underpinned this view. Panksepp evaluated seven so-called command systems and the SEEKING system is therein of central importance...
2018: Frontiers in Psychology
https://www.readbyqxmd.com/read/29773203/validation-of-semiautomatic-scoring-of-rem-sleep-without-atonia-in-patients-with-rbd
#10
D Guttowski, G Mayer, W H Oertel, K Kesper, T Rosenberg
OBJECTIVE/BACKGROUND: To evaluate REM sleep without atonia (RSWA) in REM sleep behavior disorder (RBD) several automatic algorithms have been developed. We aimed to validate our algorithm (Mayer et al., 2008) in order to assess the following: (1). capability of the algorithm to differentiate between RBD, night terror (NT), somnambulism (SW), Restless legs syndrome (RLS), and obstructive sleep apnea (OSA), (2). the cut-off values for short (SMI) and long muscle activity (LMI), (3). which muscles qualify best for differential diagnosis, and (4)...
June 2018: Sleep Medicine
https://www.readbyqxmd.com/read/29772450/understanding-one-s-body-and-movements-from-the-perspective-of-young-adults-with-autism-a-mixed-methods-study
#11
Ingrid Bertilsson, Amanda Lundvik Gyllensten, Arve Opheim, Gunvor Gard, Catharina Sjödahl Hammarlund
BACKGROUND: There are but a few studies of how persons with autism perceive their bodies and movements. Difficulties in perceiving the surrounding world along with disturbed motor coordination and executive functions may affect physical and psychological development. AIMS: To explore the experiences of body and movements in young adults with autism and how two physiotherapeutic instruments may capture these experiences. PROCEDURES: Eleven young adults (16-22 years) with autism were interviewed and assessed using Bruininks-Oseretsky Test of Motor Proficiency (BOT2) and Body Awareness Scale Movement Quality and Experience (BAS MQ-E)...
May 14, 2018: Research in Developmental Disabilities
https://www.readbyqxmd.com/read/29772247/internode-length-is-reduced-during-myelination-and-remyelination-by-neurofilament-medium-phosphorylation-in-motor-axons
#12
Eric Villalón, Devin M Barry, Nathan Byers, Katie Frizzi, Maria R Jones, Dan S Landayan, Jeffrey M Dale, Natalie L Downer, Nigel A Calcutt, Michael L Garcia
The distance between nodes of Ranvier, referred to as internode length, positively correlates with axon diameter, and is optimized during development to ensure maximal neuronal conduction velocity. Following myelin loss, internode length is reestablished through remyelination. However, remyelination results in short internode lengths and reduced conduction rates. We analyzed the potential role of neurofilament phosphorylation in regulating internode length during remyelination and myelination. Following ethidium bromide induced demyelination, levels of neurofilament medium (NF-M) and heavy (NF-H) phosphorylation were unaffected...
May 14, 2018: Experimental Neurology
https://www.readbyqxmd.com/read/29772246/preterm-birth-disrupts-cerebellar-development-by-affecting-granule-cell-proliferation-program-and-bergmann-glia
#13
Igor Y Iskusnykh, Randal K Buddington, Victor V Chizhikov
Preterm birth is a leading cause of long-term motor and cognitive deficits. Clinical studies suggest that some of these deficits result from disruption of cerebellar development, but the mechanisms that mediate cerebellar abnormalities in preterm infants are largely unknown. Furthermore, it remains unclear whether preterm birth and precocious exposure to the ex-utero environment directly disrupt cerebellar development or indirectly by increasing the probability of cerebellar injury, including that resulting from clinical interventions and protocols associated with the care of preterm infants...
May 14, 2018: Experimental Neurology
https://www.readbyqxmd.com/read/29771342/recent-progress-in-structural-biology-lessons-from-our-research-history
#14
Ryo Nitta, Tsuyoshi Imasaki, Eriko Nitta
The recent 'resolution revolution' in structural analyses of cryo-electron microscopy (cryo-EM) has drastically changed the research strategy for structural biology. In addition to X-ray crystallography and nuclear magnetic resonance spectroscopy, cryo-EM has achieved the structural analysis of biological molecules at near-atomic resolution, resulting in the Nobel Prize in Chemistry 2017. The effect of this revolution has spread within the biology and medical science fields affecting everything from basic research to pharmaceutical development by visualizing atomic structure...
May 16, 2018: Microscopy
https://www.readbyqxmd.com/read/29770998/maternal-depressive-symptoms-are-negatively-associated-with-child-growth-and-development-evidence-from-rural-india
#15
Phuong Hong Nguyen, Jed Friedman, Mohini Kak, Purnima Menon, Harold Alderman
Maternal depression has been suggested as a risk factor for both poor child growth and development in many low- and middle-income countries, but the validity of many studies is hindered by small sample sizes, varying cut-offs used in depression diagnostics, and incomplete control of confounding factors. This study examines the association between maternal depressive symptoms (MDSs) and child physical growth and cognitive development in Madhya Pradesh, India, where poverty, malnutrition, and poor mental health coexist...
May 17, 2018: Maternal & Child Nutrition
https://www.readbyqxmd.com/read/29770797/correlation-of-the-predisposition-of-chinese-children-to-cerebral-palsy-with-nucleotide-variation-in-pri-mir-124-that-alters-the-non-canonical-apoptosis-pathway
#16
Hui Li, Xiu-Li Wang, Yan-Qiu Wu, Xiu-Mei Liu, Ai-Min Li
Cerebral palsy is a group of non-progressive motor impairment syndromes caused by brain lesions during development. Herein, we investigated the relationship between nucleotide variations in a miRNA coding region and the predisposition of Chinese children to cerebral palsy. A total of 233 CP patients and 256 healthy participants were enrolled, and 60 children were selected from each group for plasma miRNA detection. We screened the coding regions of pri-miR-124-1, -2, and -3 using PCR and sequencing. The expression of miR-124 was determined by qRT-PCR...
May 17, 2018: Acta Pharmacologica Sinica
https://www.readbyqxmd.com/read/29770150/effect-of-cathodal-transcranial-direct-current-stimulation-on-a-child-with-involuntary-movement-after-hypoxic-encephalopathy
#17
Mayumi Nagai, Naofumi Tanaka, Yutaka Oouchida, Shin-Ichi Izumi
The aim of the study was to investigate the effect of cathodal transcranial direct current stimulation to the supplementary motor area to inhibit involuntary movements of a child. An 8-year-old boy who developed hypoxic encephalopathy after asphyxia at the age of 2 had difficulty in remaining standing without support because of involuntary movements. He was instructed to remain standing with his plastic ankle-foot orthosis for 10 s at three time points by leaning forward with his forearms on a desk. He received cathodal or sham transcranial direct current stimulation to the supplementary motor area at 1 mA for 10 min...
2018: Case Reports in Medicine
https://www.readbyqxmd.com/read/29770116/peripheral-glial-cells-in-the-development-of-diabetic-neuropathy
#18
REVIEW
Nádia Pereira Gonçalves, Christian Bjerggaard Vægter, Lone Tjener Pallesen
The global prevalence of diabetes is rapidly increasing, affecting more than half a billion individuals within the next few years. As diabetes negatively affects several physiological systems, this dramatic increase represents not only impaired quality of life on the individual level but also a huge socioeconomic challenge. One of the physiological consequences affecting up to half of diabetic patients is the progressive deterioration of the peripheral nervous system, resulting in spontaneous pain and eventually loss of sensory function, motor weakness, and organ dysfunctions...
2018: Frontiers in Neurology
https://www.readbyqxmd.com/read/29769464/-a-case-study-of-tailor-made-exercise-for-preventing-decrease-in-physical-function-analyzing-the-effect-of-tailor-made-exercise-from-a-motion-study-motor-function-test-and-questionnaire
#19
Naomichi Tani, Yoshiyuki Higuchi, Masanori Ohta, Zyunichi Akathu, Masaharu Kumashiro
OBJECTIVE: This study aimed to verify the effect of tailor-made exercise depending on the characteristics of a certain food manufacturing industry on the physical function and subjective symptoms of employees. METHODS: For the development of tailor-made exercise, work analysis was carried out at each factory to comprehend the physical burden due to work load. The motor function test and questionnaire survey for subjective symptoms were conducted before and after exercise during 3 months...
May 16, 2018: Sangyō Eiseigaku Zasshi, Journal of Occupational Health
https://www.readbyqxmd.com/read/29768519/influence-of-growth-hormone-replacement-on-neurological-and-psychomotor-development-case-report
#20
Felipe Motta, Adriana Pasmanik Eisencraft, Lindiane Gomes Crisostomo
The height response to the use of growth hormone in short height cases has already been confirmed in the literature. The influence of the insulin-like growth factor 1 (GH-IGF1) axis components on development, function, regeneration, neuroprotection, cognition, and motor functions has been evaluated in experimental studies and in adults with central nervous system lesions. However, there is still little research on the clinical impact of hormone replacement on neurological and psychomotor development. This report presents the case of a patient with excellent weight-height recovery and, even more surprisingly, neurological and psychomotor development in response to use of growth hormone...
May 14, 2018: Einstein
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