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https://www.readbyqxmd.com/read/29777676/cognitive-effects-of-rhythmic-auditory-stimulation-in-parkinson-s-disease-a-p300-study
#1
Juan Lei, Nadine Conradi, Cornelius Abel, Stefan Frisch, Alla Brodski-Guerniero, Marcel Hildner, Christian A Kell, Jochen Kaiser, Maren Schmidt-Kassow
Rhythmic auditory stimulation (RAS) may compensate dysfunctions of the basal ganglia (BG), involved with intrinsic evaluation of temporal intervals and action initiation or continuation. In the cognitive domain, RAS containing periodically presented tones facilitates young healthy participants' attention allocation to anticipated time points, indicated by better performance and larger P300 amplitudes to periodic compared to random stimuli. Additionally, active auditory-motor synchronization (AMS) leads to a more precise temporal encoding of stimuli via embodied timing encoding than stimulus presentation adapted to the participants' actual movements...
May 16, 2018: Brain Research
https://www.readbyqxmd.com/read/29775702/abnormal-sleep-architecture-and-hippocampal-circuit-dysfunction-in-a-mouse-model-of-fragile-x-syndrome
#2
Christine E Boone, Heydar Davoudi, Jon B Harrold, David J Foster
Fragile X syndrome (FXS) is the most common heritable cause of intellectual disability and single-gene cause of autism spectrum disorder. The Fmr1 null mouse models much of the human disease including hyperarousal, sensory hypersensitivity, seizure activity, and hippocampus-dependent cognitive impairment. Sleep architecture is disorganized in FXS patients, but has not been examined in Fmr1 knockout (Fmr1-KO) mice. Hippocampal neural activity during sleep, which is implicated in memory processing, also remains uninvestigated in Fmr1-KO mice...
May 15, 2018: Neuroscience
https://www.readbyqxmd.com/read/29774960/alteration-of-nociceptive-integration-in-the-spinal-cord-of-a-rat-model-of-parkinson-s-disease
#3
Keri-Ann Charles, Frédéric Naudet, Rabia Bouali-Benazzouz, Marc Landry, Philippe De Deurwaerdère, Pascal Fossat, Abdelhamid Benazzouz
BACKGROUND: Pain is a major non motor symptom that contributes to impaired quality of life in PD. However, its mechanism is unknown. OBJECTIVES AND METHODS: We sought to identify the pain phenotypes and parallel changes in spinal integration of peripheral stimuli in a rat model of PD induced by lesions of SN dopamine neurons, using behavioral plantar and von Frey tests as well as electrophysiology of the dorsal horn. RESULTS: We show that dopamine depletion by 6-OHDA induced hypersensitivity to mechanical and thermal stimuli...
May 18, 2018: Movement Disorders: Official Journal of the Movement Disorder Society
https://www.readbyqxmd.com/read/29774424/lingual-and-jaw-kinematic-abnormalities-precede-speech-and-swallowing-impairments-in-als
#4
Bridget J Perry, Rosemary Martino, Yana Yunusova, Emily K Plowman, Jordan R Green
Early identification of bulbar involvement in persons with ALS is critical for improving diagnosis and prognosis; however, efficacious diagnostic markers have not yet been identified. The purpose of this study was to determine whether kinematic changes of the tongue and jaw during swallowing, measured using 3D electromagnetic articulography (EMA), predate clinically identifiable symptoms of speech and swallowing impairment in persons diagnosed with ALS. Data were collected from 16 adults diagnosed with ALS and 18 neurotypical controls...
May 17, 2018: Dysphagia
https://www.readbyqxmd.com/read/29773651/usp25m-protease-regulates-ubiquitin-like-processing-of-tug-proteins-to-control-glut4-glucose-transporter-translocation-in-adipocytes
#5
Estifanos N Habtemichael, Don T Li, Abel Alcázar-Román, Xavier O Westergaard, Muyi Li, Max C Petersen, Hanbing Li, Stephen G DeVries, Eric Li, Omar Julca-Zevallos, Joseph S Wolenski, Jonathan S Bogan
Insulin stimulates the exocytic translocation of specialized vesicles in adipocytes, which inserts GLUT4 glucose transporters into the plasma membrane to enhance glucose uptake.  Previous results support a model in which TUG proteins trap these GLUT4 storage vesicles at the Golgi matrix, and in which insulin triggers endoproteolytic cleavage of TUG to translocate GLUT4.  Here, we identify Usp25m as a protease required for insulin-stimulated TUG cleavage and GLUT4 translocation in adipocytes.  Usp25m is expressed in adipocytes, binds TUG and GLUT4, dissociates from TUG-bound vesicles after insulin addition, and colocalizes with TUG and insulin-responsive cargoes in unstimulated cells...
May 17, 2018: Journal of Biological Chemistry
https://www.readbyqxmd.com/read/29773570/hdna2-nuclease-helicase-promotes-centromeric-dna-replication-and-genome-stability
#6
Zhengke Li, Bochao Liu, Weiwei Jin, Xiwei Wu, Mian Zhou, Vincent Wenzhe Liu, Ajay Goel, Zhiyuan Shen, Li Zheng, Binghui Shen
DNA2 is a nuclease/helicase that is involved in Okazaki fragment maturation, replication fork processing, and end resection of DNA double-strand breaks. Similar such helicase activity for resolving secondary structures and structure-specific nuclease activity are needed during DNA replication to process the chromosome-specific higher order repeat units present in the centromeres of human chromosomes. Here, we show that DNA2 binds preferentially to centromeric DNA The nuclease and helicase activities of DNA2 are both essential for resolution of DNA structural obstacles to facilitate DNA replication fork movement...
May 17, 2018: EMBO Journal
https://www.readbyqxmd.com/read/29772957/brain-machine-interfaces-powerful-tools-for-clinical-treatment-and-neuroscientific-investigations
#7
Marc W Slutzky
Brain-machine interfaces (BMIs) have exploded in popularity in the past decade. BMIs, also called brain-computer interfaces, provide a direct link between the brain and a computer, usually to control an external device. BMIs have a wide array of potential clinical applications, ranging from restoring communication to people unable to speak due to amyotrophic lateral sclerosis or a stroke, to restoring movement to people with paralysis from spinal cord injury or motor neuron disease, to restoring memory to people with cognitive impairment...
May 1, 2018: Neuroscientist: a Review Journal Bringing Neurobiology, Neurology and Psychiatry
https://www.readbyqxmd.com/read/29772496/vibrotactile-feedback-alters-dynamics-of-static-postural-control-in-persons-with-parkinson-s-disease-but-not-older-adults-at-high-fall-risk
#8
Carleigh M High, Hannah F McHugh, Stephen C Mills, Shinichi Amano, Jane E Freund, Srikant Vallabhajosula
BACKGROUND: Aging and Parkinson's disease are often associated with impaired postural control. Providing extrinsic feedback via vibrotactile sensation could supplement intrinsic feedback to maintain postural control. RESEARCH QUESTION: We investigated the postural control response to vibrotactile feedback provided at the trunk during challenging stance conditions in older adults at high fall risk and individuals with Parkinson's disease compared to healthy older adults...
May 8, 2018: Gait & Posture
https://www.readbyqxmd.com/read/29771368/restless-sleep-disorder-in-children-a-pilot-study-on-a-tentative-new-diagnostic-category
#9
Lourdes M DelRosso, Oliviero Bruni, Raffaele Ferri
Study Objectives: A group of children with "restless sleep" who do not fit the criteria for any other sleep disorder but with daytime impairment are studied to identify restless sleep disorder (RSD) clinically and polysomnographically and to differentiate it from other sleep disorders of childhood. Methods: A pilot study of 15 school aged children with restless sleep and 15 sex and age matched children with restless leg syndrome (RLS) and 37 normal controls were included...
May 16, 2018: Sleep
https://www.readbyqxmd.com/read/29767814/inborn-errors-of-coenzyme-a-metabolism-and-neurodegeneration
#10
Ivano Di Meo, Miryam Carecchio, Valeria Tiranti
Two inborn errors of coenzyme A (CoA) metabolism are responsible for distinct forms of neurodegeneration with brain iron accumulation (NBIA), a heterogeneous group of neurodegenerative diseases having as a common denominator iron accumulation mainly in the inner portion of globus pallidus. Pantothenate kinase-associated neurodegeneration (PKAN), an autosomal recessive disorder with progressive impairment of movement, vision and cognition, is the most common form of NBIA and is caused by mutations in the pantothenate kinase 2 gene (PANK2), coding for a mitochondrial enzyme, which phosphorylates vitamin B5 in the first reaction of the CoA biosynthetic pathway...
May 16, 2018: Journal of Inherited Metabolic Disease
https://www.readbyqxmd.com/read/29767295/violation-of-expectations-about-movement-and-goal-achievement-leads-to-sense-of-agency-reduction
#11
Riccardo Villa, Emmanuele Tidoni, Giuseppina Porciello, Salvatore Maria Aglioti
The control of one's own movements and of their impact on the external world generates a feeling of control referred to as Sense of Agency (SoA). SoA is experienced when actions match predictions and is reduced by unpredicted events. The present study investigated the contribution of monitoring two fundamental components of action-movement execution and goal achievement-that have been most often explored separately in previous research. We have devised a new paradigm in which participants performed goal-directed actions while viewing an avatar's hand in a mixed-reality scenario...
May 16, 2018: Experimental Brain Research. Experimentelle Hirnforschung. Expérimentation Cérébrale
https://www.readbyqxmd.com/read/29766748/medical-cannabis-for-pediatric-moderate-to-severe-complex-motor-disorders
#12
Stephanie Libzon, Lihi Bar-Lev Schleider, Naama Saban, Luda Levit, Yulia Tamari, Ilan Linder, Tally Lerman-Sagie, Lubov Blumkin
A complex motor disorder is a combination of various types of abnormal movements that are associated with impaired quality of life (QOL). Current therapeutic options are limited. We studied the efficacy, safety, and tolerability of medical cannabis in children with complex motor disorder. This pilot study was approved by the institutional ethics committee. Two products of cannabidiol (CBD) enriched 5% oil formulation of cannabis were compared: one with 0.25% δ-9-tetrahydrocannabinol (THC) 20:1 group, the other with 0...
January 1, 2018: Journal of Child Neurology
https://www.readbyqxmd.com/read/29766672/ribcage-deformity-and-the-altered-breathing-pattern-in-children-with-osteogenesis-imperfecta
#13
Antonella LoMauro, Paolo Fraschini, Simona Pochintesta, Marianna Romei, Maria G D'Angelo, Andrea Aliverti
AIM: Osteogenesis Imperfecta (OI) is a genetic disease characterized by bones fragility and progressive deformity. Life expectancy is reduced in the non-lethal most severe type III form before the age of 10 years. The main cause of death in OI is respiratory insufficiency resulting from impaired thoracic function worsened by ribcage deformity and scoliosis. METHODS: We used opto-electronic plethysmography to study chest geometry, the ventilatory, and the thoraco-abdominal pattern at rest in supine position in children younger than 10 years...
May 15, 2018: Pediatric Pulmonology
https://www.readbyqxmd.com/read/29764825/sudden-hemichorea-and-frontal-lobe-syndrome-a-rare-presentation-of-unbalanced-polycythaemia-vera
#14
Carmen García-Cabo, Jessica Fernandez-Dominguez, Valentín Mateos
Polycythaemia vera (PV) is an haematological neoplasm that frequently presents neurological symptoms. However, chorea is a rare complication of this disease, occurring in less than 5% of the patients. Cognitive impairment related to PV unbalanced is also a rare complication, and it can improve with proper treatment. We present a 96-year-old-man with acute-onset hemichorea and frontal lobe syndrome with no vascular pathology in the basal ganglia or frontal region. A clear relationship was observed between the onset of involuntary movements and the cognitive impairment and worsening of haematological parameters in the patient...
May 14, 2018: BMJ Case Reports
https://www.readbyqxmd.com/read/29764460/benign-and-severe-early-life-seizures-a-round-in-the-first-year-of-life
#15
REVIEW
Piero Pavone, Giovanni Corsello, Martino Ruggieri, Silvia Marino, Simona Marino, Raffaele Falsaperla
At the onset, differentiation between abnormal non-epileptic movements, and epileptic seizures presenting in early life is difficult as is clinical diagnosis and prognostic evaluation of the various seizure disorders presenting at this age. Seizures starting in the first year of life including the neonatal period might have a favorable course, such as in infants presenting with benign familial neonatal epilepsy, febrile seizures simplex or acute symptomatic seizures. However, in some cases, the onset of seizures at birth or in the first months of life have a dramatic evolution with severe cerebral impairment...
May 15, 2018: Italian Journal of Pediatrics
https://www.readbyqxmd.com/read/29763510/trihexyphenidyl-for-dystonia-in-cerebral-palsy
#16
REVIEW
Adrienne R Harvey, Louise B Baker, Dinah Susan Reddihough, Adam Scheinberg, Katrina Williams
BACKGROUND: Cerebral palsy occurs in up to 2.1 of every 1000 live births and encompasses a range of motor problems and movement disorders. One commonly occurring movement disorder amongst those with cerebral palsy is dystonia: sustained or intermittent involuntary muscle spasms and contractions that cause twisting, repetitive movements and abnormal postures. The involuntary contractions are often very painful and distressing and cause significant limitations to activity and participation...
May 15, 2018: Cochrane Database of Systematic Reviews
https://www.readbyqxmd.com/read/29761274/lower-intra-abdominal-pressure-has-no-cardiopulmonary-benefits-during-laparoscopic-colorectal-surgery-a-double-blind-randomized-controlled-trial
#17
Youn Joung Cho, Hyesun Paik, Seung-Yong Jeong, Ji Won Park, Woo Young Jo, Yunseok Jeon, Kook Hyun Lee, Jeong-Hwa Seo
BACKGROUND: Higher intra-abdominal pressure may impair cardiopulmonary functions during laparoscopic surgery. While 12-15 mmHg is generally recommended as a standard pressure, the benefits of lower intra-abdominal pressure are unclear. We thus studied whether the low intra-abdominal pressure compared with the standard pressure improves cardiopulmonary dynamics during laparoscopic surgery. METHODS: Patients were randomized according to the intra-abdominal pressure and neuromuscular blocking levels during laparoscopic colorectal surgery: low pressure (8 mmHg) with deep-block (post-tetanic count 1-2), standard pressure (12 mmHg) with deep-block, and standard pressure with moderate-block (train-of-four count 1-2) groups...
May 14, 2018: Surgical Endoscopy
https://www.readbyqxmd.com/read/29760428/generation-and-characterisation-of-a-parkin-pacrg-knockout-mouse-line-and-a-pacrg-knockout-mouse-line
#18
Sarah E M Stephenson, Timothy D Aumann, Juliet M Taylor, Jessica R Riseley, Ruili Li, Jeffrey R Mann, Doris Tomas, Paul J Lockhart
Mutations in PARK2 (parkin) can result in Parkinson's disease (PD). Parkin shares a bidirectional promoter with parkin coregulated gene (PACRG) and the transcriptional start sites are separated by only ~200 bp. Bidirectionally regulated genes have been shown to function in common biological pathways. Mice lacking parkin have largely failed to recapitulate the dopaminergic neuronal loss and movement impairments seen in individuals with parkin-mediated PD. We aimed to investigate the function of PACRG and test the hypothesis that parkin and PACRG function in a common pathway by generating and characterizing two novel knockout mouse lines harbouring loss of both parkin and Pacrg or Pacrg alone...
May 14, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29760182/alternating-modulation-of-subthalamic-nucleus-beta-oscillations-during-stepping
#19
Petra Fischer, Chiung Chu Chen, Ya Ju Chang, Chien-Hung Yeh, Alek Pogosyan, Damian M Herz, Binith Cheeran, Alexander L Green, Tipu Z Aziz, Jonathan Hyam, Simon Little, Thomas Foltynie, Patricia Limousin, Ludvic Zrinzo, Harutomo Hasegawa, Michael Samuel, Keyoumars Ashkan, Peter Brown, Huiling Tan
Gait disturbances in Parkinson's disease are commonly refractory to current treatment options and majorly impair patient's quality of life. Auditory cues facilitate gait and prevent motor blocks. We investigated how neural dynamics in the human subthalamic nucleus of Parkinsons's disease patients (14 male, 2 female) vary during stepping and whether rhythmic auditory cues enhance the observed modulation. Oscillations in the beta band were suppressed after ipsilateral heel strikes, when the contralateral foot had to be raised, and re-appeared after contralateral heel strikes, when the contralateral foot rested on the floor...
May 14, 2018: Journal of Neuroscience: the Official Journal of the Society for Neuroscience
https://www.readbyqxmd.com/read/29759825/beyond-move-more-feeling-the-rhythms-of-physical-activity-in-mid-and-later-life
#20
Cassandra Phoenix, Sarah L Bell
The last two decades have seen growing unease regarding the negative health consequences of increasing levels of physical inactivity, both in the UK and further afield. Public health initiatives and interventions aimed at increasing levels of physical activity have, therefore, become somewhat commonplace. Within the current context of demographic change, with growing numbers of older adults and evidence that inactivity increases with age, these initiatives hold particular relevance to mid and later-life adults...
May 4, 2018: Social Science & Medicine
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