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Cognitive impairment in children

Paul C Knox, Ian J C MacCormick, Emme Mbale, Macpherson Malewa, Gabriela Czanner, Simon P Harding
Paediatric cerebral malaria is the most serious complication of Plasmodium falciparum infection. While the majority recover, long-term cognitive impairment has been highlighted as a significant and neglected problem. Persistent or serious deficits in processes such as attention or behavioural inhibition should be manifest in changes to performance on oculomotor tasks. Therefore we investigated the impact of cerebral malaria on the development of reflexive pro-saccades and antisaccades. In a longitudinal study, 47 children previously admitted with retinopathy-confirmed cerebral malaria (mean age at admission 54 months), were compared with 37 local healthy controls (mean ages at first study visit 117 and 110 months respectively)...
2016: PloS One
Madhuri S Kurdi, Sindhu Priya Muthukalai
BACKGROUND AND AIMS: Melatonin (MT), a naturally occurring pituitary hormone has a sleep promoting effect. There are very few studies on pre-operative oral MT (0.2-0.5 mg/kg) in children. We planned a study to assess the efficacy of oral MT in two doses and compare it with oral midazolam and placebo for pre-operative anxiolysis, sedation, maintenance of cognition and psychomotor skills, parental separation behaviour and venepuncture compliance. METHODS: This prospective double-blind randomised study was conducted after ethical committee approval on 100 children aged 5-15 years, American Society of Anaesthesiologists physical status I and II undergoing elective surgery at our hospital from January 1, 2014, to December 31, 2014...
October 2016: Indian Journal of Anaesthesia
Shannon Dorsey, Katie A McLaughlin, Suzanne E U Kerns, Julie P Harrison, Hilary K Lambert, Ernestine C Briggs, Julia Revillion Cox, Lisa Amaya-Jackson
Child and adolescent trauma exposure is prevalent, with trauma exposure-related symptoms, including posttraumatic stress, depressive, and anxiety symptoms often causing substantial impairment. This article updates the evidence base on psychosocial treatments for child and adolescent trauma exposure completed for this journal by Silverman et al. (2008). For this review, we focus on 37 studies conducted during the seven years since the last review. Treatments are grouped by overall treatment family (e.g., cognitive behavioral therapy), treatment modality (e...
October 19, 2016: Journal of Clinical Child and Adolescent Psychology
Anne Synnes, Thuy Mai Luu, Diane Moddemann, Paige Church, David Lee, Michael Vincer, Marilyn Ballantyne, Annette Majnemer, Dianne Creighton, Junmin Yang, Reginald Sauve, Saroj Saigal, Prakesh Shah, Shoo K Lee
OBJECTIVES: Identify determinants of neurodevelopmental outcome in preterm children. METHODS: Prospective national cohort study of children born between 2009 and 2011 at <29 weeks gestational age, admitted to one of 28 Canadian neonatal intensive care units and assessed at a Canadian Neonatal Follow-up Network site at 21 months corrected age for cerebral palsy (CP), visual, hearing and developmental status using the Bayley Scales of Infant and Toddler Development-Third Edition (Bayley-III)...
October 6, 2016: Archives of Disease in Childhood. Fetal and Neonatal Edition
Robyn M Amos-Kroohs, Laurie L Davenport, Nina Atanasova, Zuhair I Abdulla, Matthew R Skelton, Charles V Vorhees, Michael T Williams
Manganese (Mn) is an essential element but neurotoxic at higher exposure levels. The effects of Mn overexposure (MnOE) on hippocampal and striatal-dependent learning and memory in rats were tested in combination with iron deficiency (FeD) and developmental stress that often co-occur with MnOE. Moderate FeD affects up to 15% of U.S. children and developmental stress is common in lower socio-economic areas where MnOE occurs. Pregnant Sprague-Dawley rats and their litters were housed in cages with or without (barren cage (BAR)) standard bedding from embryonic day (E)7 to postnatal day (P)28...
October 15, 2016: Neurotoxicology and Teratology
Xiao-Ying Liu, Tao Shi, Wei-Na Yin, Zhen-Yu Ren, Yu-Lei Deng, Sheng-Di Chen
OBJECTIVE: Cognitive impairment is one of the major consequences of epilepsy and has been shown to reduce quality of life. Interictal epileptiform discharges (IEDs) were associated with poorer cognitive performance in children, and the aim of this study was to determine whether there was a similar association in adults. METHODS: A prospective cohort of 167 seizure-free adult patients underwent EEG recording and extensive cognitive evaluations. Global cognition was evaluated using Addenbrooke's Cognitive Examination-Revised (ACE-R), while sub-dimensions of cognition were evaluated using the Auditory Verbal Learning Test (AVLT), Trial Making Test (TMT)-A and -B, and the 5 constitutive subscales of ACE-R...
September 30, 2016: Epilepsy Research
Emma Sumner, Samuel B Hutton, Gustav Kuhn, Elisabeth L Hill
Children with Developmental Coordination Disorder (DCD) fail to acquire adequate motor skill, yet surprisingly little is known about the oculomotor system in DCD. Successful completion of motor tasks is supported by accurate visual feedback. The purpose of this study was to determine whether any oculomotor differences can distinguish between children with and without a motor impairment. Using eye tracking technology, visual fixation, smooth pursuit, and pro- and anti-saccade performance were assessed in 77 children that formed three groups: children with DCD (aged 7-10), chronologically age (CA) matched peers, and a motor-match (MM) group (aged 4-7)...
October 17, 2016: Developmental Science
Carmen Brankaer, Pol Ghesquière, Anke De Wel, Ann Swillen, Bert De Smedt
Cross-syndrome comparisons offer an important window onto understanding heterogeneity in mathematical learning disabilities or dyscalculia. The present study therefore investigated symbolic numerical magnitude processing in two genetic syndromes that are both characterized by mathematical learning disabilities: Turner syndrome and 22q11.2 deletion syndrome (22q11DS). We further verified whether the phenotypic outcomes of these syndromes emerged from the same or different cognitive processes and therefore examined whether numerical impairments were related to working memory deficits, often observed in these syndromes...
October 17, 2016: Developmental Science
Laurens Holmes, Joshua Tworig, Joseph Casini, Isabel Morgan, Kathleen O'Brien, Patricia Oceanic, Kirk Dabney
BACKGROUND: Sports-related concussion remains a public health challenge due to its morbidity and mortality. One of the consequences of concussion is cognitive impairment (CI) and cognitive-related symptoms (CRS) which determine, to some extent, physical and behavioral functioning of children who sustain concussion. Despite the high prevalence of CI and CRS associated with concussion, the risk factors are not fully understood. We aimed to characterize CRS and to examine its relationship with race, ethnicity, age, insurance, and sex in a pediatric population...
December 2016: Sports Medicine—Open
Barbara Nussbaumer-Streit, Berlinda Yeoh, Ursula Griebler, Lisa M Pfadenhauer, Laura K Busert, Stefan K Lhachimi, Szimonetta Lohner, Gerald Gartlehner
BACKGROUND: Lead poisoning is associated with physical, cognitive and neurobehavioural impairment in children, and trials have tested many household interventions to prevent lead exposure. This is an update of the original review, first published in 2008. OBJECTIVES: To assess the effects of household interventions for preventing or reducing lead exposure in children, as measured by improvements in cognitive and neurobehavioural development, reductions in blood lead levels and reductions in household dust lead levels...
October 16, 2016: Cochrane Database of Systematic Reviews
T Perez-Roche, I Altemir, G Giménez, E Prieto, I González, J L Peña-Segura, O Castillo, V Pueyo
BACKGROUND: Prematurity and low birth weight are known risk factors for cognitive and developmental impairments, and school failure. Visual perceptual and visual motor skills seem to be among the most affected cognitive domains in these children. AIMS: To assess the influence of prematurity and low birth weight in visual cognitive skills and school performance. METHODS: We performed a prospective cohort study, which included 80 boys and girls in an age range from 5 to 13...
October 13, 2016: Research in Developmental Disabilities
Yu-Shu Huang, Christian Guilleminault, Fang-Ming Hwang, Chuan Cheng, Cheng-Hui Lin, Hsueh-Yu Li, Li-Ang Lee
Pediatric obstructive sleep apnea (OSA) is associated with chronic systemic inflammation and with cognitive impairments. This study aimed to investigate the status of proinflammatory cytokines, particularly interleukin 17 (IL-17) and interleukin 23 (IL-23) and cognition in pediatric OSA.Controls and OSA children participated in the study. Exclusion criteria were adenotonsillectomy, heart, neurological and severe psychiatric diseases, craniofacial syndromes, and obesity. Polysomnogram was followed by serum testing for inflammatory markers and neurocognitive tests such as continuous performance task (CPT) and Wisconsin card sorting test, questionnaires, analyses of plasma high-sensitivity C-reactive protein (HS-CRP), tumor necrosis factor alpha (TNF-α), interleukin 1 (IL-1), interleukin 6 (IL-6), IL-17, and IL-23...
October 2016: Medicine (Baltimore)
A S Parent, A Pinson, N Woods, C Chatzi, C E Vaaga, A Bensen, A Gérard, J P Thome, J P Bourguignon, G L Westbrook
Neurogenesis in the dentate gyrus is sensitive to endogenous and exogenous factors that influence hippocampal function. Ongoing neurogenesis and the integration of these new neurons throughout life thus may provide a sensitive indicator of environmental stress. We examined the effects of Aroclor 1254 (A1254), a mixture of polychlorinated biphenyls (PCBs), on the development and function of newly-generated dentate granule cells. Early exposure to A1254 has been associated with learning impairment in children, suggesting potential impact on the development of hippocampus and/or cortical circuits...
October 14, 2016: European Journal of Neuroscience
Robert M Nevels, Samuel T Gontkovsky, Bryman E Williams
Paroxetine, also known by the trade names Aropax, Paxil, Pexeva, Seroxat, Sereupin and Brisdelle, was first marketed in the U.S. in 1992. Effective for major depression and various anxiety disorders, it quickly gained a sizable share of the antidepressant prescription market. By the late 1990s, paroxetine frequently was being associated with serious drug interactions and medication side effects. Most significantly, in a major Canadian epidemiological study examining the relationship between antidepressants and diseases, paroxetine was associated with a 620 percent increase in the rate of breast cancer in women who had taken it over a four-year period...
March 1, 2016: Psychopharmacology Bulletin
Larissa de Souza Siqueira, Hosana Alves Gonçalves, Lilian Cristine Hübner, Rochele Paz Fonseca
Introduction: The Hayling Test assesses the components of initiation, inhibition, cognitive flexibility and verbal speed by means of a sentence completion task. This study presents the process of developing the Brazilian version of the Child Hayling Test (CHT) and reports evidence of its content validity. Methods: 139 people took part in the study. The adaptation was performed by seven translators and 12 specialist judges. An initial sample of 92 healthy children was recruited to test a selection of sentences adapted from previous adult and pediatric versions of the instrument, and a sample of 28 healthy children was recruited for pilot testing of the final version...
July 2016: Trends in Psychiatry and Psychotherapy
K Kent, K E Charlton, M Netzel, K Fanning
BACKGROUND: Preclinical evidence suggests that the anthocyanins, which comprise a subclass of dietary flavonoids providing the purple and red pigmentation in plant-based foods, may have a beneficial impact on cognitive outcomes. METHODS: A systematic review was conducted to identify the published literature on food-based anthocyanin consumption and cognitive outcomes in human intervention trials. The literature search followed PRISMA guidelines and included six databases, as well as additional hand searching...
October 11, 2016: Journal of Human Nutrition and Dietetics: the Official Journal of the British Dietetic Association
C Elaine Little, Carolyn Emery, Stephen H Scott, Willem Meeuwisse, Luz Palacios-Derflingher, Sean P Dukelow
BACKGROUND: KINARM end point robotic testing on a range of tasks evaluating sensory, motor and cognitive function in children/adolescents with no neurologic impairment has been shown to be reliable. The objective of this study was to determine whether differences in baseline performance on multiple robotic tasks could be identified between pediatric/adolescent ice hockey players (age range 10-14) with and without a history of concussion. METHODS: Three hundred and eighty-five pediatric/adolescent ice hockey players (ages 10-14) completed robotic testing (94 with and 292 without a history of concussion)...
October 12, 2016: Journal of Neuroengineering and Rehabilitation
Angelina Paolozza, Douglas P Munoz, Donald Brien, James N Reynolds
BACKGROUND: Saccades are rapid eye movements that bring an image of interest onto the retina. Previous research has found that in healthy individuals performing eye movement tasks, the location of a previous visual target can influence performance of the saccade on the next trial. This rapid behavioral adaptation represents a form of immediate neural plasticity within the saccadic circuitry. Our studies have shown that children with fetal alcohol spectrum disorder (FASD) are impaired on multiple saccade measures...
September 22, 2016: Alcoholism, Clinical and Experimental Research
Jonathan W Hennek, Ashok A Kumar, Alex B Wiltschko, Matthew R Patton, Si Yi Ryan Lee, Carlo Brugnara, Ryan P Adams, George M Whitesides
Iron deficiency anemia (IDA) is a nutritional disorder that impacts over one billion people worldwide; it may cause permanent cognitive impairment in children, fatigue in adults, and suboptimal outcomes in pregnancy. IDA can be diagnosed by detection of red blood cells (RBCs) that are characteristically small (microcytic) and deficient in hemoglobin (hypochromic), typically by examining the results of a complete blood count performed by a hematology analyzer. These instruments are expensive, not portable, and require trained personnel; they are, therefore, unavailable in many low-resource settings...
October 5, 2016: Lab on a Chip
James C Wang, Laszlo Nagy, Joshua C Demke
Syndromic craniosynostosis affects up to 1:30,000 live births with characteristic craniofacial growth restrictions, deformities, and other associated abnormalities, such as carpal-pedal anomalies and cognitive function impairment. More than 150 syndromes are associated with craniosynostosis. This article describes some commonalities and distinguishing features and management of syndromic synostosis. Also addressed is secondary synostosis, which is often found in syndromic children with problems related to microcephaly, hydrocephalus, or shunt-induced craniosynostosis, although pathophysiologically and genetically different...
November 2016: Facial Plastic Surgery Clinics of North America
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