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https://www.readbyqxmd.com/read/28534656/early-development-in-rett-syndrome-the-benefits-and-difficulties-of-a-birth-cohort-approach
#1
Peter B Marschik, Sanne Lemcke, Christa Einspieler, Dajie Zhang, Sven Bölte, Gillian S Townend, Marlene B Lauritsen
PURPOSES: Typically, early (pre-diagnostic) development in individuals later diagnosed with Rett syndrome (RTT) has been investigated retrospectively using parent reports, medical records and analysis of home videos. In recent years, prospective research designs have been increasingly applied to the investigation of early development in individuals with late phenotypical onset disorders, for example, autism spectrum disorder. METHODS: In this study, data collected by the Danish National Birth Cohort lent itself to prospective exploration of the early development of RTT, in particular early motor-, speech-language, and socio-communicative behaviors, mood, and sleep...
May 23, 2017: Developmental Neurorehabilitation
https://www.readbyqxmd.com/read/28534003/new-pharmacological-approaches-to-treating-non-motor-symptoms-of-parkinson-s-disease
#2
Michael A Kelberman, Elena M Vazey
PURPOSE OF REVIEW: Non-motor symptoms in patients with Parkinson's Disease (PD) are better predictors of quality of life changes, caregiver burden, and mortality than motor symptoms. Levodopa has limited, and sometimes detrimental, effects on these symptoms. In this review we discuss recent evidence on pharmacological treatments for non-motor symptoms. RECENT FINDINGS: Breakthroughs have been made in the treatment of psychosis and sleep dysfunction. Pimavanserin has become the first FDA approved drug for PD psychosis...
December 2016: Current Pharmacology Reports
https://www.readbyqxmd.com/read/28533743/neonatal-hypoxia-ischaemia-mechanisms-models-and-therapeutic-challenges
#3
REVIEW
Lancelot J Millar, Lei Shi, Anna Hoerder-Suabedissen, Zoltán Molnár
Neonatal hypoxia-ischaemia (HI) is the most common cause of death and disability in human neonates, and is often associated with persistent motor, sensory, and cognitive impairment. Improved intensive care technology has increased survival without preventing neurological disorder, increasing morbidity throughout the adult population. Early preventative or neuroprotective interventions have the potential to rescue brain development in neonates, yet only one therapeutic intervention is currently licensed for use in developed countries...
2017: Frontiers in Cellular Neuroscience
https://www.readbyqxmd.com/read/28533741/adulthood-exposure-to-lipopolysaccharide-exacerbates-the-neurotoxic-and-inflammatory-effects-of-rotenone-in-the-substantia-nigra
#4
Chun Huang, Li Zhu, Huan Li, Fu-Guo Shi, Guo-Qing Wang, Yi-Zheng Wei, Jie Liu, Feng Zhang
Parkinson's disease (PD) is the second most neurodegenerative disorder with a regional decrease of dopamine (DA) neurons in the substantia nigra (SN). Despite intense exploration, the etiology of PD progressive process remains unclear. This study was to investigate the synergistic effects of systemic inflammation of lipopolysaccharide (LPS) and neurotoxicity of rotenone (ROT) on exacerbating DA neuron lesion. Male SD adulthood rats received a single intraperitoneal injection of LPS. Seven months later, rats were subcutaneously given ROT five times a week for consecutive 4 weeks...
2017: Frontiers in Molecular Neuroscience
https://www.readbyqxmd.com/read/28532905/choreatic-side-effects-of-deep-brain-stimulation-of-the-anteromedial-subthalamic-nucleus-for-treatment-resistant-obsessive-compulsive-disorder-a-case-report
#5
A E P Mulders, A F G Leentjens, K Schruers, A Duits, L Ackermans, Y Temel
BACKGROUND: Patients with treatment-resistant obsessive-compulsive disorder (OCD) are potential candidates for deep brain stimulation (DBS). The anteromedial subthalamic nucleus (STN) is amongst the most commonly used targets for DBS in OCD. CASE DESCRIPTION: We present a patient with a 30-year history of treatment-resistant OCD who underwent anteromedial STN-DBS. Despite a clear mood-enhancing effect, stimulation caused motor side-effects including bilateral hyperkinesia, dyskinesias and sudden large amplitude choreatic movements of arms and legs when stimulating at voltages above circa 1...
May 19, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28532674/cytokine-expression-levels-in-als-a-potential-link-between-inflammation-and-bmaa-triggered-protein-misfolding
#6
Nara Michaelson, Dominic Facciponte, Walter Bradley, Elijah Stommel
Recently, it has been shown that proinflammatory cytokines play a complex and important role in the pathogenesis of many neurological disorders, including amyotrophic lateral sclerosis (ALS). To help facilitate future discoveries and more effective treatment strategies, we highlight the role that both innate and adaptive immune systems play in ALS and summarize the main observations that relate to cytokine expression levels in this disease. Furthermore, we propose a mechanism by which a known neurotoxin, β-N-methylamino-l-alanine (BMAA), may trigger this cytokine expression profile through motor neuron protein misfolding and subsequent NLRP3 (nucleotide-binding domain (NOD)-like receptor protein 3) inflammasome activation...
May 10, 2017: Cytokine & Growth Factor Reviews
https://www.readbyqxmd.com/read/28532169/impact-of-metoprolol-treatment-on-cardiac-function-and-exercise-tolerance-in-heart-failure-patients-with-neuropsychiatric-disorders
#7
Jingjing Huang, Ran Zhang, Xuelu Liu, Yong Meng
OBJECTIVE: To investigate the impact of neuropsychiatric disorders on the effect of metoprolol on cardiac and motor function in chronic heart failure (CHF) patients. METHODS: From February 2013 to April 2016, CHF patients with clinical mental disorders, received metoprolol (23.75 or 47.5 mg, once daily, p.o) at the Second Affiliated Hospital of Kunming Medical University. Mental status was confirmed by means of hospital anxiety and depression scale (HADS) and Copenhagen burnout inventory (CBI) scale...
May 22, 2017: Current Medical Research and Opinion
https://www.readbyqxmd.com/read/28531191/exogenous-expression-of-drp1-plays-neuroprotective-roles-in-the-alzheimer-s-disease-in-the-a%C3%AE-42-transgenic-drosophila-model
#8
Fengshou Lv, Xiaopeng Yang, Chuanju Cui, Chunhe Su
BACKGROUND: Alzheimer's disease (AD) is one of the most common neurodegenerative disorders. Recent studies have shown that mitochondrial dysfunction is a causative factor of AD. Drp1 (Dynamin-related protein 1), a regulator of mitochondrial fission, shows neuroprotective effects on Parkinson's disease. In this study, we investigate the effect and mechanism of Drp1 on Aβ42 transgenic Drosophila. METHODS: Elav-gal4/UAS>Aβ42 transgenic Drosophila model was constructed using Elav-gal4 promoter...
2017: PloS One
https://www.readbyqxmd.com/read/28530766/right-ring-finger-volar-mass-in-a-14-year-old-boy
#9
Mary P Fox, Jack E McKay, Randall D Craver, Nicholas D Pappas
A trigger digit is relatively uncommon in adolescents and often has a different etiology in that age group vs adults. In the pediatric population, trigger digits frequently arise from a variety of underlying anatomic situations, including thickening of the flexor digitorum superficialis or flexor digitorum profundus tendons, an abnormal relationship between the flexor digitorum superficialis and flexor digitorum profundus tendons, a proximal flexor digitorum superficialis decussation, or constriction of the pulleys...
May 20, 2017: Orthopedics
https://www.readbyqxmd.com/read/28529878/neuroimaging-in-pre-motor-parkinson-s-disease
#10
REVIEW
Thomas R Barber, Johannes C Klein, Clare E Mackay, Michele T M Hu
The process of neurodegeneration in Parkinson's disease begins long before the onset of clinical motor symptoms, resulting in substantial cell loss by the time a diagnosis can be made. The period between the onset of neurodegeneration and the development of motoric disease would be the ideal time to intervene with disease modifying therapies. This pre-motor phase can last many years, but the lack of a specific clinical phenotype means that objective biomarkers are needed to reliably detect prodromal disease...
2017: NeuroImage: Clinical
https://www.readbyqxmd.com/read/28529870/symptom-specific-amygdala-hyperactivity-modulates-motor-control-network-in-conversion-disorder
#11
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/28529667/motor-problems-in-children-with-neurofibromatosis-type-1
#12
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/28529318/neurodegenerative-disorders-ataxin-2-reduction-rescues-motor-defects
#13
Sarah Crunkhorn
No abstract text is available yet for this article.
May 19, 2017: Nature Reviews. Drug Discovery
https://www.readbyqxmd.com/read/28529068/adverse-outcome-pathways-application-to-enhance-mechanistic-understanding-of-neurotoxicity
#14
REVIEW
Anna Bal-Price, M E Meek
Recent developments have prompted the transition of empirically based testing of late stage toxicity in animals for a range of different endpoints including neurotoxicity to more efficient and predictive mechanistically based approaches with greater emphasis on measurable key events early in the progression of disease. The adverse outcome pathway (AOP) has been proposed as a simplified organizational construct to contribute to this transition by linking molecular initiating events and earlier (more predictive) key events at lower levels of biological organization to disease outcomes...
May 18, 2017: Pharmacology & Therapeutics
https://www.readbyqxmd.com/read/28528232/a-mathematical-and-biological-plausible-model-of-decision-execution-regulation-in-go-no-go-tasks-focusing-on-the-fronto-striatal-thalamic-pathway
#15
Golnaz Baghdadi, Farzad Towhidkhah, Reza Rostami
Discovering factors influencing the speed and accuracy of responses in tasks such as "Go/No-Go" is one of issues which have been raised in neurocognitive studies. Mathematical models are considered as tools to identify and to study decision making procedure from different aspects. In this paper, a mathematical model has been presented to show several factors can alter the output of decision making procedure before execution in a "Go/No-Go" task. The dynamic of this model has two stable fixed points, each of them corresponds to the "Press" and "Not-press" responses...
May 13, 2017: Computers in Biology and Medicine
https://www.readbyqxmd.com/read/28528196/a-review-of-psychiatric-co-morbidity-described-in-genetic-and-immune-mediated-movement-disorders
#16
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/28527958/treadmill-exercise-produces-neuroprotective-effects-in-a-murine-model-of-parkinson-s-disease-by-regulating-the-tlr2-myd88-nf-%C3%AE%C2%BAb-signaling-pathway
#17
Jung-Hoon Koo, Yong-Chul Jang, Dong-Ju Hwang, Hyun-Seob Um, Nam-Hee Lee, Jae-Hoon Jung, Joon-Yong Cho
Parkinson's disease (PD) is characterized by progressive dopamine depletion and a loss of dopaminergic neurons in the substantia nigra pars compacta (SNpc). Treadmill exercise is a promising non-pharmacological approach for reducing the risk of PD and other neuroinflammatory disorders, such as Alzheimer's disease. The goal of this study was to investigate the effects of treadmill exercise on α-synuclein-induced neuroinflammation and neuronal cell death in 1-methyl-4-phenyl-1,2,3,6-tetrahydropyridine (MPTP)-induced mouse model of PD...
May 17, 2017: Neuroscience
https://www.readbyqxmd.com/read/28527784/phrenic-and-hypoglossal-nerve-activity-during-respiratory-response-to-hypoxia-in-6-ohda-unilateral-model-of-parkinson-s-disease
#18
Kryspin Andrzejewski, Krystyna Budzińska, Katarzyna Kaczyńska
AIMS: Parkinson's disease (PD) patients apart from motor dysfunctions exhibit respiratory disturbances. Their mechanism is still unknown and requires investigation. Our research was designed to examine the activity of phrenic (PHR) and hypoglossal (HG) nerves activity during a hypoxic respiratory response in the 6-hydroxydopamine (6-OHDA) model of PD. MAIN METHODS: Male adult Wistar rats were injected unilaterally with 6-OHDA (20μg) or the vehicle into the right medial forebrain bundle (MFB)...
May 17, 2017: Life Sciences
https://www.readbyqxmd.com/read/28527315/longitudinal-decline-in-speech-production-in-parkinson-s-disease-spectrum-disorders
#19
Sharon Ash, Charles Jester, Collin York, Olga L Kofman, Rachel Langey, Amy Halpin, Kim Firn, Sophia Dominguez Perez, Lama Chahine, Meredith Spindler, Nabila Dahodwala, David J Irwin, Corey McMillan, Daniel Weintraub, Murray Grossman
We examined narrative speech production longitudinally in non-demented (n=15) and mildly demented (n=8) patients with Parkinson's disease spectrum disorder (PDSD), and we related increasing impairment to structural brain changes in specific language and motor regions. Patients provided semi-structured speech samples, describing a standardized picture at two time points (mean±SD interval=38±24months). The recorded speech samples were analyzed for fluency, grammar, and informativeness. PDSD patients with dementia exhibited significant decline in their speech, unrelated to changes in overall cognitive or motor functioning...
May 17, 2017: Brain and Language
https://www.readbyqxmd.com/read/28527272/-does-corticosteroid-treatment-during-the-pre-and-postnatal-periods-affect-the-neurodevelopmental-outcome-of-premature-newborns
#20
Marita Lardón, José Uberos, Eduardo Narbona
INTRODUCTION: Glucocorticoids, widely used in the perinatal period, may be associated with adverse neurodevelopmental effects. OBJECTIVES: To analyze neurodevelopmental outcomes in a cohort of very low birth weight newborns treated with antenatal and/or postnatal corticosteroids. MATERIALS AND METHODS: This was a prospective cohort study in which we included all very low birth weight babies admitted to the neonatal intensive care unit of a tertiary hospital between 2008 and 2013...
April 1, 2017: Biomédica: Revista del Instituto Nacional de Salud
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