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Pervasive Developmental disorder

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https://www.readbyqxmd.com/read/28540549/the-association-between-air-pollutants-and-autism-spectrum-disorders
#1
Chunyan Yang, Weiwei Zhao, Kui Deng, Vanessa Zhou, Xiaohua Zhou, Yan Hou
Autism spectrum disorders are a member of the pervasive developmental disorders (PDDs) that have been increasing dramatically since described by Leo Kanner in 1943. In the past decade, the number of epidemiological publications addressing air pollution exposures and autism has grown correspondingly, but the association is still unclear. Whether air pollutants play a causal role and which substances are related with autism requires further study. We systematically reviewed the literature from 2005 to 2016 in MEDLINE (National Library of Medicine), Web of Science, and PubMed and summarized the association between different air pollutants and autism...
May 24, 2017: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/28538871/what-do-cochrane-systematic-reviews-say-about-interventions-for-autism-spectrum-disorders
#2
Larissa Lyra, Luiz Eduardo Rizzo, Camila Sá Sunahara, Daniela Vianna Pachito, Carolina de Oliveira Cruz Latorraca, Ana Luiza Cabrera Martimbianco, Rachel Riera
CONTEXT AND OBJECTIVE: Autism spectrum disorders (ASDs) include autistic disorder, Asperger's disorder and pervasive developmental disorder. The manifestations of ASDs can have an important impact on learning and social functioning that may persist during adulthood. The aim here was to summarize the evidence from Cochrane systematic reviews on interventions for ASDs. DESIGN AND SETTING: Review of systematic reviews, conducted within the Discipline of Evidence-Based Medicine, Escola Paulista de Medicina, Universidade Federal de São Paulo...
March 2017: São Paulo Medical Journal, Revista Paulista de Medicina
https://www.readbyqxmd.com/read/28536874/-genetic-findings-in-autism-spectrum-disorders
#3
REVIEW
C M Freitag
Autism spectrum disorders (ASD) are pervasive developmental disorders comprising problems in social interaction, communication, and stereotyped behavior and interests. They show a prevalence of around 0.8% in children, adolescents, and adults, and a skewed sex distribution (about 4:1 = male:female). ASD are predominantly genetically determined disorders. Heritability estimates from twin studies range between 64 and 91%. Recurrence risk in siblings is 20-fold elevated. De novo and inherited monogenetic disorders, mutations, sex chromosomal abnormalities, cytogenetic and imprinting disorders as well as common variants are associated with ASD...
May 23, 2017: Der Nervenarzt
https://www.readbyqxmd.com/read/28536274/mapping-22q11-2-gene-dosage-effects-on-brain-morphometry
#4
Amy Lin, Christopher R K Ching, Ariana Vajdi, Daqiang Sun, Rachel K Jonas, Maria Jalbrzikowski, Leila Kushan-Wells, Laura Pacheco Hansen, Emma Krikorian, Boris Gutman, Deepika Dokoru, Gerhard Helleman, Paul M Thompson, Carrie E Bearden
Reciprocal chromosomal rearrangements at the 22q11.2 locus are associated with elevated risk of neurodevelopmental disorders. The 22q11.2 deletion confers the highest known genetic risk for schizophrenia, but a duplication in the same region is strongly associated with autism and is less common in schizophrenia cases than in the general population. Here we conducted the first study of 22q11.2 gene dosage effects on brain structure in a sample of 143 human subjects: 66 with 22q11.2 deletions (22q-del; 32 males), 21 with 22q11...
May 23, 2017: Journal of Neuroscience: the Official Journal of the Society for Neuroscience
https://www.readbyqxmd.com/read/28524230/the-etiology-of-autistic-traits-in-preschoolers-a-population-based-twin-study
#5
Eveline L de Zeeuw, Catharina E M van Beijsterveldt, Rosa A Hoekstra, Meike Bartels, Dorret I Boomsma
BACKGROUND: Autism Spectrum Disorders (ASD) are highly heritable, but the exact etiological mechanisms underlying the condition are still unclear. METHODS: Using a multiple rater twin design in a large sample of general population preschool twins, this study aimed to (a) estimate the contribution of genetic and environmental factors to autistic traits, controlling for the possible effects of rater bias, (b) to explore possible sex differences in etiology and (c) to investigate the discordance in autistic traits in monozygotic and same-sex dizygotic twin pairs...
May 19, 2017: Journal of Child Psychology and Psychiatry, and Allied Disciplines
https://www.readbyqxmd.com/read/28506122/examining-transitions-from-youth-to-adult-services-for-young-persons-with-autism
#6
Mathew T Milen, David B Nicholas
Autism Spectrum Disorder (ASD) presents pervasive challenges for individuals throughout their lifetime. Although some financial, community, and individual supports are available for children, there are fewer resources available for adults with ASD, their families, and/or caregivers. It is important to understand the multidimensional shifts associated with the transition from adolescence to adulthood for individuals with ASD. METHODS: To better understand the transitional process, a qualitative study comprised 11 semi-structured interviews with individuals with ASD and their families...
May 16, 2017: Social Work in Health Care
https://www.readbyqxmd.com/read/28476693/oxytocin-administration-during-spontaneous-labor-guidelines-for-clinical-practice-chapter%C3%A2-6-fetal-neonatal-and-pediatric-risks-and-adverse-effects-of-using-oxytocin-augmentation-during-spontaneous-labor
#7
https://www.readbyqxmd.com/read/28464876/prenatal-chlorpyrifos-leads-to-autism-like-deficits-in-c57bl6-j-mice
#8
Anat Lan, Michal Kalimian, Benjamin Amram, Ora Kofman
BACKGROUND: Children are at daily risk for exposure to organophosphate insecticides, of which the most common is chlorpyrifos (CPF). Exposure of pregnant women to CPF was linked to decreased birth weight, abnormal reflexes, reduction in IQ, as well as increased maternal reports of signs of pervasive developmental disorder. The aim of current study was to examine the long term effects of prenatal exposure to CPF in C57BL/6 J (B6) mice with specific focus on social and repetitive behavior...
May 2, 2017: Environmental Health: a Global Access Science Source
https://www.readbyqxmd.com/read/28462601/neonatal-factors-among-subjects-diagnosed-with-a-pervasive-developmental-disorder-in-the-us
#9
David A Geier, Janet K Kern, Mark R Geier
PURPOSE: Contradictory studies suggest that some neonatal factors may be associated with a pervasive developmental disorder (PDD) diagnosis, but limited data is available from longitudinal, prospective medical record assessments. MATERIALS AND METHODS: The present hypothesis-testing longitudinal, case-control study evaluated birth characteristics among cases diagnosed with a PDD in comparison to controls by examining prospectively collected automated medical records within the Vaccine Safety Datalink (VSD) database...
May 2, 2017: Journal of Maternal-fetal & Neonatal Medicine
https://www.readbyqxmd.com/read/28452080/autism-a-transdiagnostic-dimensional-construct-of-reasoning
#10
REVIEW
Bodil Aggernaes
The concept of autism has changed across time, from the Bleulerian concept, which defined it as one of several symptoms of dementia praecox, to the present-day concept representing a pervasive development disorder. The present theoretical contribution to this special issue of EJN on autism introduces new theoretical ideas and discusses them in light of selected prior theories, clinical examples, and recent empirical evidence. The overall aim is to identify some present challenges of diagnostic practice and autism research and to suggest new pathways that may help direct future research...
April 27, 2017: European Journal of Neuroscience
https://www.readbyqxmd.com/read/28443736/brain-resting-state-functional-connectivity-is-preserved-under-sevoflurane-anesthesia-in-patients-with-pervasive-developmental-disorders-a-pilot-study
#11
Lakshmikumar Venkatraghavan, Suparna Bharadwaj, Vincent Wourms, Audrey Tan, Michael T Jurkiewicz, David J Mikulis, Adrian P Crawley
Functional connectivity studies play a huge role in understanding the relationship between the network connections and the behavioral phenotype of patients with pervasive developmental disorders (PDD). Some patients with PDD may not be able to tolerate the imaging procedure while they are awake, and, hence, they often need general anesthesia. General anesthesia is a confounding factor in functional imaging studies due to its effect on the functional connectivity. The objective of this study is to look at the resting-state functional connectivity (RS-FC) under sevoflurane anesthesia in patients with PDDs...
May 2017: Brain Connectivity
https://www.readbyqxmd.com/read/28433088/parental-age-and-offspring-psychopathology-in-the-philadelphia-neurodevelopmental-cohort
#12
Alison K Merikangas, Monica E Calkins, Warren B Bilker, Tyler M Moore, Ruben C Gur, Raquel E Gur
OBJECTIVE: Increasing evidence implicates advanced paternal age at offspring birth in neuropsychiatric disorders. Advanced maternal age has also been associated with schizophrenia and other neurodevelopmental disorders, whereas younger maternal age has been linked with behavioral disorders. Few studies have considered the specificity of the associations with respect to comorbidity. In addition, most prior studies have been conducted in clinical samples or registries that may reflect more severe forms of psychopathology...
May 2017: Journal of the American Academy of Child and Adolescent Psychiatry
https://www.readbyqxmd.com/read/28395532/age-of-diagnosis-of-autism-spectrum-disorder-in-latino-children-the-case-of-venezuelan-children
#13
Cecilia Montiel-Nava, José A Chacín, Zoila González-Ávila
Latino children are diagnosed with autism spectrum disorder later in life, usually with more severe symptoms, and lower IQs, compared with non-Latino children. Possible reasons for such disparities could be due to lower levels of parent education, lower socioeconomic status, limited knowledge of parents about autism spectrum disorder, and diminished health-care knowledge. The goal of the study was to describe the age of parental concerns and at first autism spectrum disorder diagnosis, and factors associated with age at the first diagnosis in a sample of Venezuelan children...
April 1, 2017: Autism: the International Journal of Research and Practice
https://www.readbyqxmd.com/read/28377256/temporary-internal-fixation-using-c1-lateral-mass-screw-and-c2-pedicle-screw-goel-harms-technique-without-bone-grafting-for-chronic-atlantoaxial-rotatory-fixation
#14
Yoshihisa Matsumoto, Jun Mizutani, Nobuyuki Suzuki, Seiji Otsuka, Kazuo Hayakawa, Muneyoshi Fukuoka, Ikuo Wada
BACKGROUND: The primary treatment strategy for chronic atlantoaxial rotatory fixation (chro-AARF) is traction followed by bracing or application of a halo device. However, to complete these conservative therapies, patient cooperation is mandatory. If conservative therapy fails, surgery is required for reduction and prevention of recurrence. It has been considered that surgery for atlantoaxial rotatory fixation necessitates solid bony fusion. However, once bony fusion is achieved, loss of range of motion is problematic...
April 2, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28368141/perceptual-and-response-dependent-profiles-of-attention-in-children-with-adhd
#15
Ida Dyhr Caspersen, Anders Petersen, Signe Vangkilde, Kerstin Jessica Plessen, Thomas Habekost
OBJECTIVE: Attention-deficit hyperactivity disorder (ADHD) is a complex developmental neuropsychiatric disorder, characterized by inattentiveness, impulsivity, and hyperactivity. Recent literature suggests a potential core deficit underlying these behaviors may involve inefficient processing when contextual stimulation is low. In order to specify this inefficiency, the aim of the present study was to disentangle perceptual and response-based deficits of attention by supplementing classic reaction time (RT) measures with an accuracy-only test...
April 3, 2017: Neuropsychology
https://www.readbyqxmd.com/read/28319814/time-specific-and-cumulative-effects-of-exposure-to-parental-externalizing-behavior-on-risk-for-young-adult-alcohol-use-disorder
#16
Alexis C Edwards, Sara L Lönn, Katherine J Karriker-Jaffe, Jan Sundquist, Kenneth S Kendler, Kristina Sundquist
BACKGROUND: Previous studies indicate that parental externalizing behavior (EB) is a robust risk factor for alcohol use disorder (AUD) in their children, and that this is due to both inherited genetic liability and environmental exposure. However, it remains unclear whether the effects of exposure to parental EB vary as a function of timing and/or chronicity. METHODS: We identified biological parents with an alcohol use disorder, drug abuse, or criminal behavior, during different periods of their child's upbringing, using Swedish national registries...
March 8, 2017: Addictive Behaviors
https://www.readbyqxmd.com/read/28230711/asperger-syndrome-and-early-onset-schizophrenia-associated-with-a-novel-mecp2-deleterious-missense-variant
#17
Aurore Curie, Gaëtan Lesca, Gérald Bussy, Sabine Manificat, Valérie Arnaud, Sibylle Gonzalez, Olivier Revol, Alain Calender, Daniel Gérard, Vincent des Portes
Methyl-CpG-binding protein 2 (MECP2) deleterious variants, which are responsible for Rett syndrome in girls, are involved in a wide spectrum of developmental disabilities in males. A neuropsychiatric phenotype without intellectual disability is uncommon in patients with MECP2 deleterious variants. We report on two dizygotic twins with an MECP2-related psychiatric disorder without intellectual disability. Neuropsychological and psychiatric phenotype assessments were performed, and a genetic analysis was carried out...
June 2017: Psychiatric Genetics
https://www.readbyqxmd.com/read/28213805/an-overview-of-autism-spectrum-disorder-heterogeneity-and-treatment-options
#18
REVIEW
Anne Masi, Marilena M DeMayo, Nicholas Glozier, Adam J Guastella
Since the documented observations of Kanner in 1943, there has been great debate about the diagnoses, the sub-types, and the diagnostic threshold that relates to what is now known as autism spectrum disorder (ASD). Reflecting this complicated history, there has been continual refinement from DSM-III with 'Infantile Autism' to the current DSM-V diagnosis. The disorder is now widely accepted as a complex, pervasive, heterogeneous condition with multiple etiologies, sub-types, and developmental trajectories. Diagnosis remains based on observation of atypical behaviors, with criteria of persistent deficits in social communication and restricted and repetitive patterns of behavior...
April 2017: Neuroscience Bulletin
https://www.readbyqxmd.com/read/28181411/infant-muscle-tone-and-childhood-autistic-traits-a-longitudinal-study-in-the-general-population
#19
Fadila Serdarevic, Akhgar Ghassabian, Tamara van Batenburg-Eddes, Tonya White, Laura M E Blanken, Vincent W V Jaddoe, Frank C Verhulst, Henning Tiemeier
In a longitudinal population-based study of 2,905 children, we investigated if infants' neuromotor development was associated with autistic traits in childhood. Overall motor development and muscle tone were examined by trained research assistants with an adapted version of Touwen's Neurodevelopmental Examination between ages 2 and 5 months. Tone was assessed in several positions and items were scored as normal, low, or high tone. Parents rated their children's autistic traits with the Social Responsiveness Scale (SRS) and the Pervasive Developmental Problems (PDP) subscale of the Child Behavior Checklist at 6 years...
May 2017: Autism Research: Official Journal of the International Society for Autism Research
https://www.readbyqxmd.com/read/28114601/risk-of-psychiatric-disorders-among-individuals-with-the-22q11-2-deletion-or-duplication-a-danish-nationwide-register-based-study
#20
Louise K Hoeffding, Betina B Trabjerg, Line Olsen, Wiktor Mazin, Thomas Sparsø, Anders Vangkilde, Preben B Mortensen, Carsten B Pedersen, Thomas Werge
Importance: Microdeletions and duplications have been described at the 22q11.2 locus. However, little is known about the clinical and epidemiologic consequences at the population level. Objective: To identify indicators of deletions or duplications at the 22q11.2 locus and estimate the incidence rate ratios (IRRs) and absolute risk for psychiatric disorders in clinically identified individuals with 22q11.2 deletion or duplication. Design, Setting, and Participants: A Danish nationwide register study including all individuals recorded in the Danish Cytogenetic Central Register with a 22q11...
March 1, 2017: JAMA Psychiatry
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