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developmental coordination disorders

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https://www.readbyqxmd.com/read/28533023/the-rna-modification-n-6-methyladenosine-and-its-implications-in-human-disease
#1
REVIEW
Pedro J Batista
Impaired gene regulation lies at the heart of many disorders, including developmental diseases and cancer. Furthermore, the molecular pathways that control gene expression are often the target of cellular parasites, such as viruses. Gene expression is controlled through multiple mechanisms that are coordinated to ensure the proper and timely expression of each gene. Many of these mechanisms target the life cycle of the RNA molecule, from transcription to translation. Recently, another layer of regulation at the RNA level involving RNA modifications has gained renewed interest of the scientific community...
May 19, 2017: Genomics, Proteomics & Bioinformatics
https://www.readbyqxmd.com/read/28512766/mental-health-outcomes-of-developmental-coordination-disorder-in-late-adolescence
#2
Ian Harrowell, Linda Hollén, Raghu Lingam, Alan Emond
AIM: To assess the relationship between developmental coordination disorder (DCD) and mental health outcomes in late adolescence. METHOD: Data were analyzed from the Avon Longitudinal Study of Parents and Children. Moderate-to-severe DCD was defined at 7 to 8 years according to the DSM-IV-TR criteria. Mental health was assessed at 16 to 18 years using self-reported questionnaires: Strengths and Difficulties Questionnaire, Short Moods and Feelings Questionnaire, and the Warwick-Edinburgh Mental Well-being Scale...
May 16, 2017: Developmental Medicine and Child Neurology
https://www.readbyqxmd.com/read/28484035/intersectin-1-is-a-component-of-the-reelin-pathway-to-regulate-neuronal-migration-and-synaptic-plasticity-in-the-hippocampus
#3
Burkhard Jakob, Gaga Kochlamazashvili, Maria Jäpel, Aziz Gauhar, Hans H Bock, Tanja Maritzen, Volker Haucke
Brain development and function depend on the directed and coordinated migration of neurons from proliferative zones to their final position. The secreted glycoprotein Reelin is an important factor directing neuronal migration. Loss of Reelin function results in the severe developmental disorder lissencephaly and is associated with neurological diseases in humans. Reelin signals via the lipoprotein receptors very low density lipoprotein receptor (VLDLR) and apolipoprotein E receptor 2 (ApoER2), but the exact mechanism by which these receptors control cellular function is poorly understood...
May 8, 2017: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/28481145/lack-of-motor-inhibition-as-a-marker-of-learning-difficulties-of-bimanual-coordination-in-teenagers-with-developmental-coordination-disorder
#4
Mélody Blais, Charlène Baly, Maëlle Biotteau, Jean-Michel Albaret, Yves Chaix, Jessica Tallet
This study tested the learning of a new bimanual coordination in teenagers with and without Developmental Coordination Disorder (DCD). Both groups improved accuracy of the new coordination. No difference was found on stability. But DCD teenagers exhibited an overall higher number of additional taps, suggesting a persistent lack of motor inhibition during learning. Moreover, teenagers with the lowest scores of motor abilities present the highest number of additional taps. All these results suggest that this number of additional taps (rather than traditional measures of accuracy and stability) could be a good marker of perceptual-motor learning deficit in DCD...
May 8, 2017: Developmental Neuropsychology
https://www.readbyqxmd.com/read/28465073/developmental-coordination-disorder-and-its-cause-the-road-less-travelled
#5
David Sugden
No abstract text is available yet for this article.
April 29, 2017: Human Movement Science
https://www.readbyqxmd.com/read/28444245/can-a-community-of-practice-improve-physical-therapists-self-perceived-practice-in-developmental-coordination-disorder
#6
Chantal Camden, Lisa M Rivard, Karen Hurtubise, Léa Héguy, Jade Berbari
Background: Communities of practice (CoP ) are useful knowledge translation (KT) strategies but little is known about their impact on physical therapists' (PTs) self-perceived practice. Purpose: We evaluated the impact of a CoP on PTs' self-perceived practice, and explored factors influencing changes in self-perceived knowledge, skills, and practice related to developmental coordination disorder (DCD). Design: We used an explanatory sequential mixed-methods design, guided by The Theory of Reasoned Action and Theory of Planned Behavior...
April 21, 2017: Physical Therapy
https://www.readbyqxmd.com/read/28440058/atypical-inter-hemispheric-communication-correlates-with-altered-motor-inhibition-during-learning-of-a-new-bimanual-coordination-pattern-in-developmental-coordination-disorder
#7
Mélody Blais, David Amarantini, Jean-Michel Albaret, Yves Chaix, Jessica Tallet
Impairment of motor learning skills in developmental coordination disorder (DCD) has been reported in several studies. Some hypotheses on neural mechanisms of motor learning deficits in DCD have emerged but, to date, brain-imaging investigations are scarce. The aim of the present study is to assess possible changes in communication between brain areas during practice of a new bimanual coordination task in teenagers with DCD (n = 10) compared to matched controls (n = 10). Accuracy, stability and number of mirror movements were computed as behavioural variables...
April 25, 2017: Developmental Science
https://www.readbyqxmd.com/read/28409696/collaborative-occupational-therapy-teachers-impressions-of-the-partnering-for-change-p4c-model
#8
A L Wilson, S R Harris
AIMS: Occupational therapists (OTs) often face barriers when trying to collaborate with teachers in school-based settings. Partnering for change (P4C), a collaborative practice model designed to support children with developmental coordination disorder, could potentially support all students with special needs. Therefore, the aim of this study was to explore how teachers experience OT services delivered using the P4C model to support children with a variety of special needs. METHODS: P4C was implemented at one elementary school in Courtenay, British Columbia...
April 14, 2017: Physical & Occupational Therapy in Pediatrics
https://www.readbyqxmd.com/read/28407444/familial-18q12-2-deletion-supports-the-role-of-rna-binding-protein-celf4-in-autism-spectrum-disorders
#9
Rita Barone, Marco Fichera, Mariaclara De Grandi, Marta Battaglia, Valeria Lo Faro, Teresa Mattina, Renata Rizzo
Deletion of 18q12.2 is an increasingly recognized condition with a distinct neuropsychiatric phenotype. Twenty-two patients have been described with overlapping neurobehavioral disturbances including developmental delay, intellectual disability of variable degree, seizures, motor coordination disorder, behavioral/emotional disturbances, and autism spectrum disorders. The CUGBP Elav-like family member 4 (CELF4) gene at 18q12.2 encodes a RNA-binding protein that links to RNA subsets involved in pre- and postsynaptic neurotransmission including almost 30% of potential autism-related genes...
April 13, 2017: American Journal of Medical Genetics. Part A
https://www.readbyqxmd.com/read/28404643/the-beach-containing-protein-wdr81-coordinates-p62-and-lc3c-to-promote-aggrephagy
#10
Xuezhao Liu, Yang Li, Xin Wang, Ruxiao Xing, Kai Liu, Qiwen Gan, Changyong Tang, Zhiyang Gao, Youli Jian, Shouqing Luo, Weixiang Guo, Chonglin Yang
Autophagy-dependent clearance of ubiquitinated and aggregated proteins is critical to protein quality control, but the underlying mechanisms are not well understood. Here, we report the essential role of the BEACH (beige and Chediak-Higashi) and WD40 repeat-containing protein WDR81 in eliminating ubiquitinated proteins through autophagy. WDR81 associates with ubiquitin (Ub)-positive protein foci, and its loss causes accumulation of Ub proteins and the autophagy cargo receptor p62. WDR81 interacts with p62, facilitating recognition of Ub proteins by p62...
May 1, 2017: Journal of Cell Biology
https://www.readbyqxmd.com/read/28368272/consensus-statement-of-the-indian-academy-of-pediatrics-on-evaluation-and-management-of-autism-spectrum-disorder
#11
Samir Dalwai, Shabina Ahmed, Vrajesh Udani, Nandini Mundkur, S S Kamath, M K C Nair
JUSTIFICATION: Autism Spectrum Disorder (ASD) is a clinically heterogenous condition with a wide range of etiological factors and causing significant public health burden. ASD poses a serious developmental disadvantage to the child in the form of poor schooling, social function and adult productivity. Thus, framing evidence-based national guidelines is a pressing need. PROCESS: The meeting on formulation of national consensus guidelines on neurodevelopmental disorders was organized by Indian Academy of Paediatrics in Mumbai on 18th and 19th December 2015...
March 29, 2017: Indian Pediatrics
https://www.readbyqxmd.com/read/28361657/attention-deficit-hyperactivity-disorder-and-motor-impairment
#12
Juliana B Goulardins, Juliana C B Marques, Jorge A De Oliveira
Attention deficit hyperactivity disorder (ADHD) is the most common neurobehavioral disorder during childhood, affecting approximately 3-6% of school-aged children; its cardinal symptoms of high activity, impulsivity, and behavioral distractibility might be assumed to have close relationships to interferences with motor skills. A separate body of literature attests to ways that motor problems can severely impact children's daily lives, as motor problems may occur in 30-50% of children with ADHD. This article critically reviews research on motor impairment in children with ADHD, notable differences in motor performance of individuals with ADHD compared with age-matched controls, and possible neural underpinnings of this impairment...
April 2017: Perceptual and Motor Skills
https://www.readbyqxmd.com/read/28360874/online-control-of-prehension-predicts-performance-on-a-standardized-motor-assessment-test-in-8-to-12-year-old-children
#13
Caroline C V Blanchard, Hannah L McGlashan, Blandine French, Rachel J Sperring, Bianca Petrocochino, Nicholas P Holmes
Goal-directed hand movements are guided by sensory information and may be adjusted 'online,' during the movement. If the target of a movement unexpectedly changes position, trajectory corrections can be initiated in as little as 100 ms in adults. This rapid visual online control is impaired in children with developmental coordination disorder (DCD), and potentially in other neurodevelopmental conditions. We investigated the visual control of hand movements in children in a 'center-out' double-step reaching and grasping task, and examined how parameters of this visuomotor control co-vary with performance on standardized motor tests often used with typically and atypically developing children...
2017: Frontiers in Psychology
https://www.readbyqxmd.com/read/28349640/developmental-trajectories-for-young-children-with-16p11-2-copy-number-variation
#14
Raphael Bernier, Caitlin M Hudac, Qixuan Chen, Chubing Zeng, Arianne Stevens Wallace, Jennifer Gerdts, Rachel Earl, Jessica Peterson, Anne Wolken, Alana Peters, Ellen Hanson, Robin P Goin-Kochel, Stephen Kanne, LeeAnne Green Snyder, Wendy K Chung
Copy number variation at 16p11.2 is associated with diverse phenotypes but little is known about the early developmental trajectories and emergence of the phenotype. This longitudinal study followed 56 children with the 16p11.2 BP4-BP5 deletion or duplication between the ages of 6 months and 8 years with diagnostic characterization and dimensional assessment across cognitive, adaptive, and behavioral domains. Linear mixed modeling revealed distinct developmental trajectories with deletions showing VIQ gains but declines in motor and social abilities while duplications showed VIQ gains and steady development across other domains...
March 27, 2017: American Journal of Medical Genetics. Part B, Neuropsychiatric Genetics
https://www.readbyqxmd.com/read/28333997/learning-better-by-repetition-or-variation-is-transfer-at-odds-with-task-specific-training
#15
Emmanuel Bonney, Lemke Dorothee Jelsma, Gillian D Ferguson, Bouwien C M Smits-Engelsman
OBJECTIVE: Transfer of motor skills is the ultimate goal of motor training in rehabilitation practice. In children with Developmental Coordination Disorder (DCD), very little is known about how skills are transferred from training situations to real life contexts. In this study we examined the influence of two types of practice on transfer of motor skills acquired in a virtual reality (VR) environment. METHOD: One hundred and eleven children with DCD and their typically developing (TD) peers, aged 6-10 years (M = 8...
2017: PloS One
https://www.readbyqxmd.com/read/28327918/developmental-coordination-disorder-in-children-experimental-work-and-data-annotation
#16
Lukas Vareka, Petr Bruha, Roman Moucek, Pavel Mautner, Ladislav Cepicka, Irena Holeckova
Background: Developmental coordination disorder (DCD) is described as a motor skill disorder characterized by a marked impairment in the development of motor coordination abilities that significantly interferes with performance of daily activities and/or academic achievement. Since some electrophysiological studies suggest differences between children with/without motor development problems, we prepared an experimental protocol and performed electrophysiological experiments with the aim to make a step towards a possible diagnosis of this disorder using the event-related potentials (ERP) technique...
February 24, 2017: GigaScience
https://www.readbyqxmd.com/read/28289224/patterns-of-coordinated-cortical-remodeling-during-adolescence-and-their-associations-with-functional-specialization-and-evolutionary-expansion
#17
Aristeidis Sotiras, Jon B Toledo, Raquel E Gur, Ruben C Gur, Theodore D Satterthwaite, Christos Davatzikos
During adolescence, the human cortex undergoes substantial remodeling to support a rapid expansion of behavioral repertoire. Accurately quantifying these changes is a prerequisite for understanding normal brain development, as well as the neuropsychiatric disorders that emerge in this vulnerable period. Past accounts have demonstrated substantial regional heterogeneity in patterns of brain development, but frequently have been limited by small samples and analytics that do not evaluate complex multivariate imaging patterns...
March 28, 2017: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/28282530/effect-of-early-intervention-on-functional-outcome-at-school-age-follow-up-and-process-evaluation-of-a-randomised-controlled-trial-in-infants-at-risk
#18
Elisa G Hamer, Tjitske Hielkema, Arend F Bos, Tineke Dirks, Siebrigje J Hooijsma, Heleen A Reinders-Messelink, Rivka F Toonen, Mijna Hadders-Algra
BACKGROUND: The long-term effect of early intervention in infants at risk for developmental disorders is unclear. The VIP project (n=46, originally) evaluated by means of a randomised controlled trial the effect of the family centred early intervention programme COPCA (Coping with and Caring for infants with special needs) in comparison to that of traditional infant physiotherapy (TIP). AIMS: To evaluate the effect of early intervention on functional outcome at school age...
March 2017: Early Human Development
https://www.readbyqxmd.com/read/28251337/when-an-object-appears-unexpectedly-anticipatory-movement-and-object-circumvention-in-individuals-with-and-without-developmental-coordination-disorder
#19
K Wilmut, A L Barnett
Obstacles often appear unexpectedly in our pathway and these require us to make adjustments to avoid collision. Previous research has demonstrated that healthy adults will make anticipatory adjustments to gait where they have been told there is the possibility of an obstacle appearing. One population that may find this type of anticipatory movement difficult is individuals with Developmental Coordination Disorder (DCD). The current study considered how individuals with and without DCD adjust to the possibility of an obstacle appearing which would require circumvention...
May 2017: Experimental Brain Research. Experimentelle Hirnforschung. Expérimentation Cérébrale
https://www.readbyqxmd.com/read/28250050/a-novel-mouse-model-of-anterior-segment-dysgenesis-asd-conditional-deletion-of-tsc1-disrupts-ciliary-body-and-iris-development
#20
Anna-Carin Hägglund, Iwan Jones, Leif Carlsson
Development of the cornea, lens, ciliary body and iris within the anterior segment of the eye involves coordinated interaction between cells originating from the ciliary margin of the optic cup, the overlying periocular mesenchyme and the lens epithelium. Anterior segment dysgenesis (ASD) encompasses a spectrum of developmental syndromes that affect these anterior segment tissues. ASD conditions arise as a result of dominantly inherited genetic mutations and result in both ocular-specific and systemic forms of dysgenesis that are best exemplified by aniridia and Axenfeld-Rieger syndrome, respectively...
March 1, 2017: Disease Models & Mechanisms
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