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autism and epidemiology

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https://www.readbyqxmd.com/read/28733900/the-putative-role-of-environmental-mercury-in-the-pathogenesis-and-pathophysiology-of-autism-spectrum-disorders-and-subtypes
#1
REVIEW
G Morris, B K Puri, R E Frye, M Maes
Exposure to organic forms of mercury has the theoretical capacity to generate a range of immune abnormalities coupled with chronic nitro-oxidative stress seen in children with autism spectrum disorder (ASD). The paper discusses possible mechanisms explaining the neurotoxic effects of mercury and possible associations between mercury exposure and ASD subtypes. Environmental mercury is neurotoxic at doses well below the current reference levels considered to be safe, with evidence of neurotoxicity in children exposed to environmental sources including fish consumption and ethylmercury-containing vaccines...
July 22, 2017: Molecular Neurobiology
https://www.readbyqxmd.com/read/28709821/the-mandarin-version-of-the-kiddie-schedule-for-affective-disorders-and-schizophrenia-epidemiological-version-for-dsm-5-a-psychometric-study
#2
Yi-Lung Chen, Lih-Jong Shen, Susan Shur-Fen Gau
BACKGROUND/PURPOSE: Changes of diagnostic coverage and criteria for psychiatric disorders in the fifth edition of the Diagnostic and Statistical Manual of Mental Disorders (DSM-5) published in 2013 cause a need for updating the Kiddie-Schedule for Affective Disorders and Schizophrenia-Epidemiological version (K-SADS-E). This study examined the preliminary psychometric properties, including inter-rater reliability, and convergent and divergent validity of the modified K-SADS-E for DSM-5...
July 11, 2017: Journal of the Formosan Medical Association, Taiwan Yi Zhi
https://www.readbyqxmd.com/read/28700580/infant-viewing-of-social-scenes-is-under-genetic-control-and-is-atypical-in-autism
#3
John N Constantino, Stefanie Kennon-McGill, Claire Weichselbaum, Natasha Marrus, Alyzeh Haider, Anne L Glowinski, Scott Gillespie, Cheryl Klaiman, Ami Klin, Warren Jones
Long before infants reach, crawl or walk, they explore the world by looking: they look to learn and to engage, giving preferential attention to social stimuli, including faces, face-like stimuli and biological motion. This capacity-social visual engagement-shapes typical infant development from birth and is pathognomonically impaired in children affected by autism. Here we show that variation in viewing of social scenes, including levels of preferential attention and the timing, direction and targeting of individual eye movements, is strongly influenced by genetic factors, with effects directly traceable to the active seeking of social information...
July 12, 2017: Nature
https://www.readbyqxmd.com/read/28699102/-the-concept-of-schizoidia-in-psychiatry-from-schizoidia-to-schizotypy-and-cluster%C3%A2-a-personality-disorders
#4
REVIEW
Hans-Peter Kapfhammer
From a perspective of conceptual evolution schizoidia was initially considered to describe features both of the premorbid personality of schizophrenic patients and of the personalities of non-psychotic family members (Bleuler, Kahlbaum, Kraepelin). On a psychopatholocial level a close link to the complex basic symptom of autism was stressed. From the very beginnings of modern psychiatry schizoidia was discussed within a conceptual frame of schizophrenia spectrum disorders (Kretschmer, Hoch, Polatin). Approaches to operationalize these conceptual works laid the basis for the cluster A personalities in DSM-III...
July 11, 2017: Neuropsychiatrie: Klinik, Diagnostik, Therapie und Rehabilitation
https://www.readbyqxmd.com/read/28685996/are-autistic-traits-associated-with-suicidality-a-test-of-the-interpersonal-psychological-theory-of-suicide-in-a-non-clinical-young-adult-sample
#5
M K Pelton, S A Cassidy
Autism spectrum conditions (ASC) has recently been associated with increased risk of suicidality. However, no studies have explored how autistic traits may interact with current models of suicidal behavior in a non-clinical population. The current study therefore explored how self-reported autistic traits interact with perceived burdensomeness and thwarted belongingness in predicting suicidal behavior, in the context of the Interpersonal-Psychological Theory of Suicide (IPTS). 163 young adults (aged 18-30 years) completed an online survey including measures of thwarted belonging and perceived burdensomeness (Interpersonal Needs Questionnaire), self-reported autistic traits (Autism Spectrum Quotient), current depression (Centre for Epidemiological Studies Depression Scale), and lifetime suicidality (Suicide Behavior Questionnaire-Revised)...
July 7, 2017: Autism Research: Official Journal of the International Society for Autism Research
https://www.readbyqxmd.com/read/28656175/epidemiological-and-serological-investigation-into-the-role-of-gestational-maternal-influenza-virus-infection-and-autism-spectrum-disorders
#6
Milada Mahic, Xiaoyu Che, Ezra Susser, Bruce Levin, Ted Reichborn-Kjennerud, Per Magnus, Camilla Stoltenberg, Lokendrasingh Chauhan, Thomas Briese, Michaeline Bresnahan, Pål Surén, Mady Hornig, Siri Mjaaland, W Ian Lipkin
The literature concerning gestational maternal influenza virus infection and risk of autism spectrum disorders (ASD) is inconclusive. To address this uncertainty, we obtained information from questionnaires and samples from the Autism Birth Cohort, a prospective birth cohort comprising mothers, fathers, and offspring recruited in Norway in 1999 to 2008. Through questionnaires, referrals, and linkages to the Norwegian National Patient Registry, we identified 338 mothers of children with ASD and 348 frequency-matched controls for whom plasma samples that had been collected midpregnancy and after delivery were available for influenza virus serology via luciferase immunoprecipitation and hemagglutinin inhibition assays for influenza virus strains circulating during the study period...
May 2017: MSphere
https://www.readbyqxmd.com/read/28655626/differential-effects-of-perinatal-exposure-to-antidepressants-on-learning-and-memory-acoustic-startle-anxiety-and-open-field-activity-in-sprague-dawley-rats
#7
Jenna L N Sprowles, Jillian R Hufgard, Arnold Gutierrez, Rebecca A Bailey, Sarah A Jablonski, Michael T Williams, Charles V Vorhees
Most antidepressants inhibit monoamine reuptake. Selective serotonin (5-HT) reuptake inhibitors (SSRIs) act on the 5-HT transporter (SERT) whereas norepinephrine-dopamine reuptake inhibitors (NDRIs) act on the norepinephrine and dopamine transporters. Epidemiological reports link SSRI use during pregnancy to an increased prevalence of autism spectrum disorder (ASD). We previously showed that perinatal exposure to the SSRI citalopram (CIT) results in rodent offspring that exhibit a number of behaviors consistent with an ASD-like phenotype...
June 24, 2017: International Journal of Developmental Neuroscience
https://www.readbyqxmd.com/read/28641213/measurement-properties-of-screening-and-diagnostic-tools-for-autism-spectrum-adults-of-mean-normal-intelligence-a-systematic-review
#8
A Baghdadli, F Russet, L Mottron
BACKGROUND: The autism spectrum (AS) is a multifaceted neurodevelopmental variant associated with lifelong challenges. Despite the relevant importance of identifying AS in adults for epidemiological, public health, and quality of life issues, the measurement properties of the tools currently used to screen and diagnose adults without intellectual disabilities (ID) have not been assessed. OBJECTIVES: This systematic review addresses the accuracy, reliability, and validity of the reported AS screening and diagnostic tools used in adults without ID...
May 17, 2017: European Psychiatry: the Journal of the Association of European Psychiatrists
https://www.readbyqxmd.com/read/28620294/gestational-exposure-to-air-pollution-alters-cortical-volume-microglial-morphology-and-microglia-neuron-interactions-in-a-sex-specific-manner
#9
Jessica L Bolton, Steven Marinero, Tania Hassanzadeh, Divya Natesan, Dominic Le, Christine Belliveau, S N Mason, Richard L Auten, Staci D Bilbo
Microglia are the resident immune cells of the brain, important for normal neural development in addition to host defense in response to inflammatory stimuli. Air pollution is one of the most pervasive and harmful environmental toxicants in the modern world, and several large scale epidemiological studies have recently linked prenatal air pollution exposure with an increased risk of neurodevelopmental disorders such as autism spectrum disorder (ASD). Diesel exhaust particles (DEP) are a primary toxic component of air pollution, and markedly activate microglia in vitro and in vivo in adult rodents...
2017: Frontiers in Synaptic Neuroscience
https://www.readbyqxmd.com/read/28608249/retinoic-acid-related-orphan-receptor-alpha-rora-variants-are-associated-with-autism-spectrum-disorder
#10
Arezou Sayad, Rezvan Noroozi, Mir Davood Omrani, Mohammad Taheri, Soudeh Ghafouri-Fard
Autism spectrum disorder (ASD) is a neurodevelopmental disorder with various epidemiologic, genetic, epigenetic, and environmental factors being associated with it. The observed sex bias in ASD towards male has prompted investigators to propose sex-dependent mechanisms for ASD. Retinoic acid-related orphan receptor-alpha (RORA) is a new autism candidate gene that has been shown to be differentially regulated by male and female hormones. Previous studies have shown deregulation of its expression in the prefrontal cortex and the cerebellum of ASD patients...
June 12, 2017: Metabolic Brain Disease
https://www.readbyqxmd.com/read/28595786/increased-risk-for-an-atypical-autism-diagnosis-following-thimerosal-containing-vaccine-exposure-in-the-united-states-a-prospective-longitudinal-case-control-study-in-the-vaccine-safety-datalink
#11
David A Geier, Janet K Kern, Mark R Geier
BACKGROUND: Thimerosal is an organic-mercury (Hg)-containing compound (49.55% Hg by weight) historically added to many multi-dose vials of vaccine as a preservative and still added to some vaccines today. Concerns about the toxic effects from Thimerosal-containing childhood vaccines and the risk of an atypical autism diagnosis were evaluated in this study. METHODS: A hypothesis-testing, prospective longitudinal, case-control study assessed exposure to Hg from Thimerosal-containing hepatitis B vaccines (TM-HepB) among cases diagnosed with atypical autism (n=164) and controls (n=15,216)...
July 2017: Journal of Trace Elements in Medicine and Biology
https://www.readbyqxmd.com/read/28593620/-a-comparative-study-of-the-structural-stigmatisation-of-adhd-and-autism-spectrum-disorder-in-flemish-newspapers
#12
D Baeyens, A Moniquet, M Danckaerts, S van der Oord
Children and adults with adhd and autism spectrum disorder (asd) often find themselves being stigmatised. There is ample evidence of public stigma, but much less is known about negative coverage in the media, a phenomenon that can be regarded as a form of structural stigma.<br/> AIM: To explore the different types of structural stigma that characterise the coverage of adhd and asd in Flemish newspapers.<br/> METHOD: We used the online databases of seven Flemish newspapers in order to select articles on adhd (n=772) and asd (n=1940) published between 2010 and 2014...
2017: Tijdschrift Voor Psychiatrie
https://www.readbyqxmd.com/read/28572274/caspr2-autoantibodies-are-raised-during-pregnancy-in-mothers-of-children-with-mental-retardation-and-disorders-of-psychological-development-but-not-autism
#13
Ester Coutinho, Leslie Jacobson, Marianne Giørtz Pedersen, Michael Eriksen Benros, Bent Nørgaard-Pedersen, Preben Bo Mortensen, Paul J Harrison, Angela Vincent
BACKGROUND, METHODS AND OBJECTIVES: Maternal autoantibodies to neuronal proteins may be one cause of neurodevelopmental disorders. This exploratory study used the Danish archived midgestational sera and their nationwide registers to search for antibodies to the N-methyl-D-aspartate receptor (NMDAR) and contactin-associated protein-like 2 (CASPR2) in maternal sera, and to relate them to subsequent psychiatric diagnoses in the woman or her child. RESULTS: In a sample of 192 women, there was no association between antibody status and subsequent psychosis in the mothers...
June 1, 2017: Journal of Neurology, Neurosurgery, and Psychiatry
https://www.readbyqxmd.com/read/28571796/connecting-the-dots-overlaps-between-autism-and-cancer-suggest-possible-common-mechanisms-regarding-signaling-pathways-related-to-metabolic-alterations
#14
Ya Wen, Martha R Herbert
Common features between autism spectrum disorders (ASDs) and cancer have been discerned using methodologies from a number of disciplines, including genetics, bioinformatics and epidemiological studies. To understand such apparent overlaps between these two conditions and the mechanisms that may underlie these linkages, it is important to look at their multi-level systems context. Here we discuss ASDs and cancer linkages across levels ranging from genes to pathways and systems, as well as from the vantage points of mechanism and of clinical and epidemiological studies...
June 2017: Medical Hypotheses
https://www.readbyqxmd.com/read/28567415/neurodevelopmental-disorders-and-environmental-toxicants-epigenetics-as-an-underlying-mechanism
#15
REVIEW
Nguyen Quoc Vuong Tran, Kunio Miyake
The increasing prevalence of neurodevelopmental disorders, especially autism spectrum disorders (ASD) and attention deficit hyperactivity disorder (ADHD), calls for more research into the identification of etiologic and risk factors. The Developmental Origin of Health and Disease (DOHaD) hypothesizes that the environment during fetal and childhood development affects the risk for many chronic diseases in later stages of life, including neurodevelopmental disorders. Epigenetics, a term describing mechanisms that cause changes in the chromosome state without affecting DNA sequences, is suggested to be the underlying mechanism, according to the DOHaD hypothesis...
2017: International Journal of Genomics
https://www.readbyqxmd.com/read/28540549/the-association-between-air-pollutants-and-autism-spectrum-disorders
#16
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...
July 2017: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/28473303/gapmap-enabling-comprehensive-autism-resource-epidemiology
#17
Nikhila Albert, Jena Daniels, Jessey Schwartz, Michael Du, Dennis P Wall
BACKGROUND: For individuals with autism spectrum disorder (ASD), finding resources can be a lengthy and difficult process. The difficulty in obtaining global, fine-grained autism epidemiological data hinders researchers from quickly and efficiently studying large-scale correlations among ASD, environmental factors, and geographical and cultural factors. OBJECTIVE: The objective of this study was to define resource load and resource availability for families affected by autism and subsequently create a platform to enable a more accurate representation of prevalence rates and resource epidemiology...
May 4, 2017: JMIR Public Health and Surveillance
https://www.readbyqxmd.com/read/28417440/developmental-neurotoxicity-of-traffic-related-air-pollution-focus-on-autism
#18
REVIEW
Lucio G Costa, Yu-Chi Chang, Toby B Cole
PURPOSE OF REVIEW: Epidemiological and animal studies suggest that air pollution may negatively affect the central nervous system (CNS) and contribute to CNS diseases. Traffic-related air pollution is a major contributor to global air pollution, and diesel exhaust (DE) is its most important component. RECENT FINDINGS: Several studies suggest that young individuals may be particularly susceptible to air pollution-induced neurotoxicity and that perinatal exposure may cause or contribute to developmental disabilities and behavioral abnormalities...
April 17, 2017: Current Environmental Health Reports
https://www.readbyqxmd.com/read/28376926/cancer-and-central-nervous-system-disorders-protocol-for-an-umbrella-review-of-systematic-reviews-and-updated-meta-analyses-of-observational-studies
#19
Ferrán Catalá-López, Brian Hutton, Jane A Driver, Matthew J Page, Manuel Ridao, José M Valderas, Adolfo Alonso-Arroyo, Jaume Forés-Martos, Salvador Martínez, Ricard Gènova-Maleras, Diego Macías-Saint-Gerons, Benedicto Crespo-Facorro, Eduard Vieta, Alfonso Valencia, Rafael Tabarés-Seisdedos
BACKGROUND: The objective of this study will be to synthesize the epidemiological evidence and evaluate the validity of the associations between central nervous system disorders and the risk of developing or dying from cancer. METHODS/DESIGN: We will perform an umbrella review of systematic reviews and conduct updated meta-analyses of observational studies (cohort and case-control) investigating the association between central nervous system disorders and the risk of developing or dying from any cancer or specific types of cancer...
April 4, 2017: Systematic Reviews
https://www.readbyqxmd.com/read/28323463/injury-mortality-in-individuals-with-autism
#20
Joseph Guan, Guohua Li
OBJECTIVES: To examine epidemiological patterns of injury fatalities in individuals with a diagnosis of autism. METHODS: We identified individuals with a diagnosis of autism who died between 1999 and 2014 by screening causes of death in the multiple cause-of-death data files in the National Vital Statistics System based on the International Classification of Diseases, 10th Revision, code F84.0. We used the general US population as the reference to calculate proportionate mortality ratios (PMRs) and 95% confidence intervals (CIs)...
May 2017: American Journal of Public Health
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