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Lisa S Robison, Mala Ananth, Michael Hadjiargyrou, David E Komatsu, Panayotis K Thanos
Previously, we created an 8-h limited-access dual bottle drinking paradigm to deliver methylphenidate (MP) to rats at two dosages that result in a pharmacokinetic profile similar to patients treated for attention deficit hyperactivity disorder. Chronic treatment resulted in altered behavior, with some effects persisting beyond treatment. In the current study, adolescent male Sprague-Dawley rats were split into three groups at four weeks of age: control (water), low-dose MP (LD), and high-dose MP (HD). Briefly, 4 mg/kg (low dose; LD) or 30 mg/kg (high dose; HD) MP was consumed during the first hour, and 10 mg/kg (LD) or 60 mg/kg (HD) MP during hours two through eight...
January 23, 2017: Journal of Neural Transmission
Sarah E Harris, Saskia P Hagenaars, Gail Davies, W David Hill, David C M Liewald, Stuart J Ritchie, Riccardo E Marioni, Cathie L M Sudlow, Joanna M Wardlaw, Andrew M McIntosh, Catharine R Gale, Ian J Deary
BACKGROUND: Poorer self-rated health (SRH) predicts worse health outcomes, even when adjusted for objective measures of disease at time of rating. Twin studies indicate SRH has a heritability of up to 60% and that its genetic architecture may overlap with that of personality and cognition. METHODS: We carried out a genome-wide association study (GWAS) of SRH on 111 749 members of the UK Biobank sample. Univariate genome-wide complex trait analysis (GCTA)-GREML analyses were used to estimate the proportion of variance explained by all common autosomal single nucleotide polymorphisms (SNPs) for SRH...
November 17, 2016: International Journal of Epidemiology
Jamie Valis, Michelle Gonzalez
BACKGROUND: Previous literature suggests that individuals with disabilities have increased rates of obesity and decreased participation in physical activity contributing to overall higher incidence of secondary health conditions compared to the general population without disabilities. OBJECTIVE/HYPOTHESIS: The purpose of this research study was to examine the differences in physical activity rates for college students with Attention Deficit Hyperactivity Disorder (ADHD) and Learning Disabilities (LD)...
January 2017: Disability and Health Journal
Christel M Middeldorp, Anke R Hammerschlag, Klaasjan G Ouwens, Maria M Groen-Blokhuis, Beate St Pourcain, Corina U Greven, Irene Pappa, Carla M T Tiesler, Wei Ang, Ilja M Nolte, Natalia Vilor-Tejedor, Jonas Bacelis, Jane L Ebejer, Huiying Zhao, Gareth E Davies, Erik A Ehli, David M Evans, Iryna O Fedko, Mònica Guxens, Jouke-Jan Hottenga, James J Hudziak, Astanand Jugessur, John P Kemp, Eva Krapohl, Nicholas G Martin, Mario Murcia, Ronny Myhre, Johan Ormel, Susan M Ring, Marie Standl, Evie Stergiakouli, Camilla Stoltenberg, Elisabeth Thiering, Nicholas J Timpson, Maciej Trzaskowski, Peter J van der Most, Carol Wang, Dale R Nyholt, Sarah E Medland, Benjamin Neale, Bo Jacobsson, Jordi Sunyer, Catharina A Hartman, Andrew J O Whitehouse, Craig E Pennell, Joachim Heinrich, Robert Plomin, George Davey Smith, Henning Tiemeier, Danielle Posthuma, Dorret I Boomsma
OBJECTIVE: The aims of this study were to elucidate the influence of common genetic variants on childhood attention-deficit/hyperactivity disorder (ADHD) symptoms, to identify genetic variants that explain its high heritability, and to investigate the genetic overlap of ADHD symptom scores with ADHD diagnosis. METHOD: Within the EArly Genetics and Lifecourse Epidemiology (EAGLE) consortium, genome-wide single nucleotide polymorphisms (SNPs) and ADHD symptom scores were available for 17,666 children (<13 years of age) from nine population-based cohorts...
October 2016: Journal of the American Academy of Child and Adolescent Psychiatry
Fang Huang, Li Sun, Ying Qian, Lu Liu, Quan-Gang Ma, Li Yang, Jia Cheng, Qing-Jiu Cao, Yi Su, Qian Gao, Zhao-Min Wu, Hai-Mei Li, Qiu-Jin Qian, Yu-Feng Wang
BACKGROUND: The cognitive function of children with either attention deficit hyperactivity disorder (ADHD) or learning disabilities (LDs) is known to be impaired. However, little is known about the cognitive function of children with comorbid ADHD and LD. The present study aimed to explore the cognitive function of children and adolescents with ADHD and learning difficulties in comparison with children with ADHD and healthy controls in different age groups in a large Chinese sample. METHODS: Totally, 1043 participants with ADHD and learning difficulties (the ADHD + learning difficulties group), 870 with pure ADHD (the pure ADHD group), and 496 healthy controls were recruited...
August 20, 2016: Chinese Medical Journal
Grant L Iverson, Magdalena Wojtowicz, Brian L Brooks, Bruce A Maxwell, Joseph E Atkins, Ross Zafonte, Paul D Berkner
OBJECTIVE: Examine lifetime history of concussions in adolescents who have developmental problems in comparison with those with no developmental problems. METHOD: Thirty-two thousand four hundred eighty-seven adolescent athletes completed baseline/pre-season evaluations. Based on self-reported histories, athletes were divided into four groups: ADHD only, ADHD and learning difficulties (LD), LD only, and controls. RESULTS: Athletes with ADHD, LD, or ADHD plus LD reported a greater prevalence of prior concussions than athletes without these developmental conditions (ps < ...
July 18, 2016: Journal of Attention Disorders
Esther Y Chin, Lindsay D Nelson, William B Barr, Paul McCrory, Michael A McCrea
BACKGROUND: The Sport Concussion Assessment Tool-3 (SCAT3) facilitates sideline clinical assessments of concussed athletes. Yet, there is little published research on clinically relevant metrics for the SCAT3 as a whole. PURPOSE: We documented the psychometric properties of the major SCAT3 components (symptoms, cognition, balance) and derived clinical decision criteria (ie, reliable change score cutoffs and normative conversation tables) for clinicians to apply to cases with and without available preinjury baseline data...
September 2016: American Journal of Sports Medicine
Francesco Craig, Francesca Felicia Operto, Andrea De Giacomo, Lucia Margari, Alessandro Frolli, Massimiliano Conson, Sara Ivagnes, Marianna Monaco, Francesco Margari
In recent years, studies have shown that parents of children with Neurodevelopmental Disorders (NDDs) experience more parenting stress than parents of typically developing children, but the relation between the type of disorders and parenting stress is far from clear. The purpose of this study was to compare the parenting stress experienced by parents of 239 children with Specific Learning Disorders (SpLD), Language Disorders (LD), Autism Spectrum Disorder (ASD), Attention Deficit Hyperactivity Disorder (ADHD), and typical development (TD)...
August 30, 2016: Psychiatry Research
Laura A Schieve, Lin H Tian, Kristin Rankin, Michael D Kogan, Marshalyn Yeargin-Allsopp, Susanna Visser, Deborah Rosenberg
PURPOSE: Although previous studies demonstrate associations between adverse perinatal outcomes and developmental disabilities (DDs), study of population impacts is limited. METHODS: We computed relative risks adjusted (aRRs) for sociodemographic factors and component and summary population attributable fractions (PAFs) for associations between very low birth weight (VLBW, all preterm births), moderately low birth weight (MLBW) + Preterm, MLBW at term, and normal birth weight (NBW) + Preterm and seven DDs (cerebral palsy [CP], autism spectrum disorder [ASD], intellectual disability [ID], behavioral-conduct disorders, attention-deficit-hyperactivity disorder [ADHD], learning disability [LD], and other developmental delay) among children aged 3-17 years in the 2011-2012 National Survey of Children's Health...
April 2016: Annals of Epidemiology
Michal Al-Yagon
This study examined the role of adolescents' perceived close relationships with significant others (attachment relationships with mothers/fathers, appraisal of homeroom teacher as secure base, and quality of peer friendship) in explaining differences in their socioemotional and behavioral functioning (peer-network/peer-dyadic loneliness, positive/negative affect, and externalizing/internalizing problems), among adolescents with learning disabilities (LD), with comorbid LD and attention-deficit/hyperactivity disorder (ADHD), or with typical development (TD)...
January 13, 2016: Journal of Learning Disabilities
Virginia Berninger, Robert Abbott, Clayton R Cook, William Nagy
Relationships between attention/executive functions and language learning were investigated in students in Grades 4 to 9 (N = 88) with and without specific learning disabilities (SLDs) in multiword syntax in oral and written language (OWL LD), word reading and spelling (dyslexia), and subword letter writing (dysgraphia). Prior attention-deficit/hyperactivity disorder (ADHD) diagnosis was correlated only with impaired handwriting. Parental ratings of inattention, but not hyperactivity, correlated with measures of written language but not oral language...
January 8, 2016: Journal of Learning Disabilities
George J DuPaul, Trevor D Pinho, Brittany L Pollack, Matthew J Gormley, Seth D Laracy
Students with attention-deficit/hyperactivity disorder (ADHD) and/or learning disabilities (LD) experience significant challenges in making the transition from high school to college. This study examined the ways first-year college students with ADHD, LD, ADHD+LD, and comparison peers differ in engagement, core self-evaluation, high school preparation behaviors, and goals/expectations. Participants were from the 2010 Cooperative Institutional Research Program Freshman Survey, including students with ADHD (n = 5,511), LD (n = 2,626), ADHD+LD (n = 1,399), or neither disability (n = 5,737)...
December 28, 2015: Journal of Learning Disabilities
Watfa S Al-Mamari, Mahmoud M Emam, Amna M Al-Futaisi, Ali M Kazem
OBJECTIVES: The estimated worldwide prevalence of learning disorders (LDs) is approximately 2-10% among school-aged children. LDs have variable clinical features and are often associated with other disorders. This study aimed to examine the comorbidity of LDs and attention deficit hyperactivity disorder (ADHD) among a sample of schoolchildren in Oman. METHODS: This study was conducted between January 2014 and January 2015 at the Sultan Qaboos University, Muscat, Oman...
November 2015: Sultan Qaboos University Medical Journal
Yantong Fang, Ning Ji, Qingjiu Cao, Yi Su, Min Chen, Yufeng Wang, Li Yang
OBJECTIVE: Atomoxetine is the most widely used nonstimulant for the treatment of attention-deficit/hyperactivity disorder (ADHD). It selectively acts on the norepinephrine (NE) system. Dopamine beta hydroxylase (DBH) regulates the synthesis of NE. This study aimed to investigate whether variants in the DBH gene have an effect on the differential response to atomoxetine. METHODS: Children and adolescents with ADHD were enrolled in a prospective, open-label study of atomoxetine for 8-12 weeks...
October 2015: Journal of Child and Adolescent Psychopharmacology
Kerri L Tang, Kevin M Antshel, Wanda P Fremont, Wendy R Kates
22q11.2 Deletion syndrome (22q11.2DS) is a chromosomal microdeletion that affects approximately 40 to 50 genes and affects various organs and systems throughout the body. Detection is typically achieved by fluorescence in situ hybridization after diagnosis of one of the major features of the deletion or via chromosomal microarray or noninvasive prenatal testing. The physical phenotype can include congenital heart defects, palatal and pharyngeal anomalies, hypocalcemia/hypoparathyroidism, skeletal abnormalities, and cranial/brain anomalies, although prevalence rates of all these features are variable...
October 2015: Journal of Developmental and Behavioral Pediatrics: JDBP
Lynn A Stewart, Geoff Wilton, Jeremy Sapers
Impaired cognitive function has been associated with criminal behavior. In Canada it is unknown the extent to which this disorder affects federal inmates or its impact on key correctional outcomes. In this study, 488 incoming male offenders were assessed on the Cognistat, a neuropsychological screening tool. Twenty-five percent of offenders were found to have some level of cognitive deficit. Lower levels of educational achievement, unstable employment history, learning disability, serious alcohol problems, and symptoms of Attention Deficit Hyperactivity Disorder (ADHD) were significantly associated with the presence of cognitive deficits in this sample...
January 2016: International Journal of Law and Psychiatry
Akira Midorikawa
This article reviews the relationship between developmental disorders and dementia with ageing. Persons with autistic spectrum disorder (ASD) are vulnerable to life events, even in their old age. In certain cases, senile persons with undiagnosed ASD, who developed maladaptive behaviors after negative life events, were considered as having a behavioral variant of frontotemporal dementia (bvFTD). However, to our knowledge, there are no reports on the relationships between ASD and bvFTD. Alternatively, there are only a limited number of reports, which address the relationships between developmental disorders and dementia...
September 2015: Brain and Nerve, Shinkei Kenkyū No Shinpo
Laura A Janzen, Dana David, Darlene Walker, Johann Hitzler, Sue Zupanec, Heather Jones, Brenda J Spiegler
BACKGROUND: Not all children with acute lymphoblastic leukemia (ALL) were developing in a typical manner prior to diagnosis. Pre-existing developmental vulnerabilities (DV) may be related to long-term neuropsychological sequelae following ALL treatment, yet little is known about the prevalence or nature of prior DV in this population. PROCEDURE: Children with newly diagnosed ALL aged 2-18 years (n = 115) were screened for DV by asking parents about the child's prior developmental history and with the Developmental Profile-3 (DP-3)...
December 2015: Pediatric Blood & Cancer
Jie Hu, Jun Liao, Malini Sathanoori, Sally Kochmar, Jessica Sebastian, Svetlana A Yatsenko, Urvashi Surti
BACKGROUND: Neurodevelopmental disorders are impairments of brain function that affect emotion, learning, and memory. Copy number variations of contactin genes (CNTNs), including CNTN3, CNTN4, CNTN5, and CNTN6, have been suggested to be associated with these disorders. However, phenotypes have been reported in only a handful of patients with copy number variations involving CNTNs. METHODS: From January 2009 to January 2013, 3724 patients ascertained through the University of Pittsburgh Medical Center were referred to our laboratory for clinical array comparative genomic hybridization testing...
2015: Journal of Neurodevelopmental Disorders
Dana Brabcová, Jana Zárubová, Jiří Kohout, Jiří Jošt, Pavel Kršek
Academic self-concept could significantly affect academic achievement and self-confidence in children with epilepsy. However, limited attention has been devoted to determining factors influencing academic self-concept of children with epilepsy. We aimed to analyze potentially significant variables (gender, frequency of seizures, duration of epilepsy, intellectual disability, learning disability and attention deficit hyperactivity disorder) in relation to academic self-concept in children with epilepsy and to additional domains of their quality of life...
October 2015: Research in Developmental Disabilities
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