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Autism and environment

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https://www.readbyqxmd.com/read/28220059/disturbance-in-maternal-environment-leads-to-abnormal-synaptic-instability-during-neuronal-circuitry-development
#1
REVIEW
Yusuke Hatanaka, Tomohiro Kabuta, Keiji Wada
Adverse maternal environment during gestation and lactation can have negative effects on the developing brain that persist into adulthood and result in behavioral impairment. Recent studies of human and animal models suggest epidemiological and experimental association between disturbances in maternal environments during brain development and the occurrence of neuropsychiatric disorders, including autism spectrum disorder, attention deficit hyperactivity disorder, schizophrenia, anxiety, depression, and neurodegenerative diseases...
2017: Frontiers in Neuroscience
https://www.readbyqxmd.com/read/28218493/improving-vision-awareness-in-autism-services-evaluation-of-a-dedicated-education-programme-for-support-practitioners
#2
Joseph J Long, Maggie Butchart, Michael Brown, Janice Bain, Anne McMillan, Thanos Karatzias
BACKGROUND: The research reported here sought to evaluate whether a dedicated education programme in vision awareness improved the knowledge and skills of autism support practitioners in identifying visual impairment in autistic people with intellectual disabilities and providing better support to those individuals identified as visually impaired. METHODS: Researchers undertook a mixed methods evaluation. A survey questionnaire was devised and administered before and after training and focus groups were undertaken in order to gain qualitative data relating how practitioners implemented their learning in practice...
February 20, 2017: Journal of Applied Research in Intellectual Disabilities: JARID
https://www.readbyqxmd.com/read/28215162/gut-brain-axis-role-of-lipids-in-the-regulation-of-inflammation-pain-and-cns-diseases
#3
Roberto Russo, Claudia Cristiano, Carmen Avagliano, Carmen De Caro, Giovanna La Rana, Giuseppina Mattace Raso, Roberto Berni Canani, Rosaria Meli, Antonio Calignano
The human gut is a composite anaerobic environment with a large, diverse and dynamic enteric microbiota, represented by more than 100 trillion microorganisms, including at least 1000 distinct species. The discovery that a different microbial composition can influence behavior and cognition, and in turn the nervous system can indirectly influence enteric microbiota composition, has significantly contributed to establish the well-accepted concept of gut-brain axis. This hypothesis is supported by several evidence showing mutual mechanisms, which involve the vague nerve, the immune system, the hypothalamic-pituitary-adrenal (HPA) axis modulation and the bacteria-derived metabolites...
February 16, 2017: Current Medicinal Chemistry
https://www.readbyqxmd.com/read/28213063/impaired-spatial-performance-in-cerebellar-deficient-lurcher-mice-is-not-associated-with-their-abnormal-stress-response
#4
Jan Tuma, Yaroslav Kolinko, Dana Jelinkova, Pascal Hilber, Jan Cendelin
Both humans and laboratory animals suffering from cerebellar lesions exhibit cognitive as well as many emotional and behavioral abnormalities. These latter have been already observed in the cerebellar mutant mice currently used to highlight some aspect of autism spectrum disorders. The aim of this study was to investigate the influence of cerebellar-related stress response abnormalities on spatial learning and memory. Cerebellar-deficient Lurcher mutant mice were exposed to water environment without active escape possibility and then tested for spatial learning in the Morris water maze...
February 14, 2017: Neurobiology of Learning and Memory
https://www.readbyqxmd.com/read/28196717/perinatal-programming-by-inflammation
#5
Sarah J Spencer, Urs Meyer
Since Levine and then Barker's seminal work mid to late last century demonstrating the importance of early life environment, intensive research has revealed the plasticity, vulnerability and resilience of the developing brain to environmental challenges. In particular, early exposure to infectious pathogens and inflammatory stimuli has a lasting impact on brain and behavior. These data establish clear effects on vulnerability to later disease and neuroinflammatory injury, cognitive function and emotionality, and even responses to pain and susceptibility to metabolic disorders...
February 11, 2017: Brain, Behavior, and Immunity
https://www.readbyqxmd.com/read/28196376/autism-and-bilingualism-a-qualitative-interview-study-of-parents-perspectives-and-experiences
#6
Sarah Hampton, Hugh Rabagliati, Antonella Sorace, Sue Fletcher-Watson
Purpose: Research into how bilingual parents of children with autism spectrum disorder (ASD) make choices about their children's language environment is scarce. This study aimed to explore this issue, focusing on understanding how bilingual parents of children with ASD may make different language exposure choices compared with bilingual parents of children without ASD. Method: Semistructured qualitative interviews were conducted with 17 bilingual parents with a child with ASD and 18 bilingual parents with a typically developing (TD) child...
February 1, 2017: Journal of Speech, Language, and Hearing Research: JSLHR
https://www.readbyqxmd.com/read/28194760/developmental-psychopathology-in-the-post-genomics-era-substantial-challenges-but-reasons-for-hope
#7
EDITORIAL
Jeffrey M Halperin
One only has to quickly look through the Table of Contents for this issue of JCPP to gain an appreciation of the ever-increasing influence of genetic research in the field of developmental psychopathology. Among the 13 articles in this issue that follow this editorial: two employ large family and/or twin studies to provide compelling behavioral genetic findings bolstering the importance of genes in the emergence of ADHD (Chen, Brikell, Lichtenstein, Serlachius, Kuja-Halkola, Sandin, and Larsson) and level of educational achievement in adolescents (Lewis, Asbury, and Plomin); one paper focuses on cortical development in patients with 22q11...
March 2017: Journal of Child Psychology and Psychiatry, and Allied Disciplines
https://www.readbyqxmd.com/read/28171816/the-western-disease-autism-and-somali-parents-embodied-health-movements
#8
Claire Laurier Decoteau
There is some statistical evidence indicating that Somali refugees and immigrants have high rates of autism spectrum disorder (ASD). Somalis in North America call autism the "Western disease" because there is no word for autism in the Somali language and because many believe it does not exist in Somalia. In Toronto, Somali parents have forged an "epistemic community," united around a coherent theory of the development of autism, its defining features, and most successful therapies. They work together with researchers to support the theory that gut bacteria is a causal factor for the development of autism...
February 1, 2017: Social Science & Medicine
https://www.readbyqxmd.com/read/28141725/acute-agitation-and-self-injury-in-a-5-year-old-with-autism
#9
Jason Schweitzer, Christine James, Willough Jenkins, Michael I Reiff, Martin T Stein
A 5-year-old nonverbal child with autism spectrum disorder (ASD) was admitted to inpatient pediatrics with new onset agitation and self-injurious behavior. His parents described him as a pleasant child without previous episodes of self-injury. Four days before admission, the parents noted new irritability followed by 2 days of self-injury to the face without clear precipitant. His hitting intensified with closed fist to face, and he required parental physical restraint to prevent further injury. Car rides and ibuprofen provided only temporary relief...
February 2017: Journal of Developmental and Behavioral Pediatrics: JDBP
https://www.readbyqxmd.com/read/28127411/protein-restricted-diet-during-pregnancy-after-insemination-alters-behavioral-phenotypes-of-the-progeny
#10
Tamio Furuse, Kunio Miyake, Takashi Kohda, Hideki Kaneda, Takae Hirasawa, Ikuko Yamada, Tomoko Kushida, Misho Kashimura, Kimio Kobayashi, Fumitoshi Ishino, Takeo Kubota, Shigeharu Wakana
BACKGROUND: Epidemiological studies suggest that hyponutrition during the fetal period increases the risk of mental disorders such as attention deficit hyperactivity disorder and autism-spectrum disorder, which has been experimentally supported using animal models. However, previous experimental hyponutrition or protein-restricted (PR) diets affected stages other than the fetal stage, such as formation of the egg before insemination, milk composition during lactation, and maternal nursing behavior...
2017: Genes & Nutrition
https://www.readbyqxmd.com/read/28122648/microbiota-transfer-therapy-alters-gut-ecosystem-and-improves-gastrointestinal-and-autism-symptoms-an-open-label-study
#11
Dae-Wook Kang, James B Adams, Ann C Gregory, Thomas Borody, Lauren Chittick, Alessio Fasano, Alexander Khoruts, Elizabeth Geis, Juan Maldonado, Sharon McDonough-Means, Elena L Pollard, Simon Roux, Michael J Sadowsky, Karen Schwarzberg Lipson, Matthew B Sullivan, J Gregory Caporaso, Rosa Krajmalnik-Brown
BACKGROUND: Autism spectrum disorders (ASD) are complex neurobiological disorders that impair social interactions and communication and lead to restricted, repetitive, and stereotyped patterns of behavior, interests, and activities. The causes of these disorders remain poorly understood, but gut microbiota, the 10(13) bacteria in the human intestines, have been implicated because children with ASD often suffer gastrointestinal (GI) problems that correlate with ASD severity. Several previous studies have reported abnormal gut bacteria in children with ASD...
January 23, 2017: Microbiome
https://www.readbyqxmd.com/read/28115688/sex-specific-gene-environment-interactions-underlying-asd-like-behaviors
#12
Sara M Schaafsma, Khatuna Gagnidze, Anny Reyes, Natalie Norstedt, Karl Månsson, Kerel Francis, Donald W Pfaff
The male bias in the incidence of autism spectrum disorders (ASDs) is one of the most notable characteristics of this group of neurodevelopmental disorders. The etiology of this sex bias is far from known, but pivotal for understanding the etiology of ASDs in general. Here we investigate whether a "three-hit" (genetic load × environmental factor × sex) theory of autism may help explain the male predominance. We found that LPS-induced maternal immune activation caused male-specific deficits in certain social responses in the contactin-associated protein-like 2 (Cntnap2) mouse model for ASD...
February 7, 2017: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/28115297/social-skills-training-for-adolescents-with-autism-spectrum-disorder-using-facebook-project-rex-connect-a-survey-study
#13
McLeod Frampton Gwynette, Danielle Morriss, Nancy Warren, James Truelove, Jennifer Warthen, Charles Paul Ross, George Mood, Charlotte Anne Snook, Jeffrey Borckardt
BACKGROUND: Adolescents with autism spectrum disorder (ASD) spend more time using electronic screen media than neurotypical peers; preliminary evidence suggests that computer-assisted or Web-based interventions may be beneficial for social skills acquisition. The current generation of adolescents accesses the Internet through computers or phones almost daily, and Facebook is the most frequently used social media platform among teenagers. This is the first research study to explore the use of Facebook as a therapeutic tool for adolescents with ASD...
January 23, 2017: JMIR Mental Health
https://www.readbyqxmd.com/read/28107849/attitudes-to-and-beliefs-about-animal-assisted-therapy-for-children-with-disabilities
#14
Esther Yap, Adam Scheinberg, Katrina Williams
OBJECTIVES: This study assessed the attitudes and beliefs surrounding animal-assisted therapy (AAT) for the rehabilitation of children with disabilities at the Royal Children's Hospital (RCH), focusing specifically on cerebral palsy (CP), autism spectrum disorder (ASD) and acquired brain injury (ABI). This was an initial step to inform future AAT research and to understand the feasibility of interventions. DESIGN/SETTING/OUTCOME MEASURES: An online survey asking participants their opinions about the inclusion of AAT, and potential barriers to its introduction in a tertiary hospital setting was advertised on the RCH Intranet from 3 March 2015 to 3 April 2015...
February 2017: Complementary Therapies in Clinical Practice
https://www.readbyqxmd.com/read/28102992/environmental-factors-associated-with-autism-spectrum-disorder-a-scoping-review-for-the-years-2003-2013
#15
M Ng, J G de Montigny, M Ofner, M T Do
INTRODUCTION: The number of children diagnosed with autism spectrum disorder (ASD) has been rapidly rising in the past decade. The etiology of this disorder, however, is largely unknown, although the environmental relative to the genetic contribution is substantial. We conducted a scoping review to comprehensively assess the current state of knowledge of the environmental factors present from preconception to early life associated with ASD, and to identify research gaps. METHODS: We searched electronic databases MEDLINE, PsycINFO and ERIC for articles on potential risk factors or protective factors from the physical and social environments associated with ASD and its subclassifications published between 1 January, 2003, and 12 July, 2013...
January 2017: Health Promotion and Chronic Disease Prevention in Canada
https://www.readbyqxmd.com/read/28074329/dietary-adequacy-of-egyptian-children-with-autism-spectrum-disorder-compared-to-healthy-developing-children
#16
Nagwa A Meguid, Mona Anwar, Geir Bjørklund, Adel Hashish, Salvatore Chirumbolo, Maha Hemimi, Eman Sultan
Although the etiology and pathology of autism spectrum disorder (ASD) is still poorly understood, a number of environmental, anthropological, neurobiological and genetic factors have been related to the pathophysiology of ASD, even the impact of oxidative stress response related to the environment and nutrition intake. Usual recommended dietary habits are based on the combination of behavioral and dietary or nutraceutical interventions together with pharmacotherapy. Investigations about a reliable relationship between diet and ASD are still lacking...
January 10, 2017: Metabolic Brain Disease
https://www.readbyqxmd.com/read/28070782/co-parenting-quality-parenting-stress-and-feeding-challenges-in-families-with-a-child-diagnosed-with-autism-spectrum-disorder
#17
Matthew Thullen, Aaron Bonsall
113 parents of children aged 5-13 with ASD completed online surveys assessing co-parenting quality, parenting stress, and child feeding challenges. Results indicated that food selectivity was both the most frequently reported type of challenging feeding behavior and the most often reported as problematic but was also the only type of challenging feeding behavior that was not associated with parenting stress. Greater parenting stress was reported when co-parenting agreement and support were lower. Child disruptive behavior at mealtime was the only feeding challenge associated with quality of co-parenting...
January 9, 2017: Journal of Autism and Developmental Disorders
https://www.readbyqxmd.com/read/28068486/the-changing-epidemiology-of-autism-spectrum-disorders
#18
Kristen Lyall, Lisa Croen, Julie Daniels, M Daniele Fallin, Christine Ladd-Acosta, Brian K Lee, Bo Y Park, Nathaniel W Snyder, Diana Schendel, Heather E Volk, Gayle C Windham, Craig Newschaffer
Autism spectrum disorder (ASD) is a complex neurodevelopmental condition with lifelong impacts. Genetic and environmental factors contribute to ASD etiology, which remains incompletely understood. Research on ASD epidemiology has made significant advances in the past decade. Current prevalence is estimated to be at least 1.5% in developed countries, with recent increases primarily among those without comorbid intellectual disability. Genetic studies have identified a number of rare de novo mutations and gained footing in the areas of polygenic risk, epigenetics, and gene-by-environment interaction...
December 21, 2016: Annual Review of Public Health
https://www.readbyqxmd.com/read/28054313/emotion-coregulation-in-mother-child-dyads-a-dynamic-systems-analysis-of-children-with-and-without-autism-spectrum-disorder
#19
Yuqing Guo, Dana Rose Garfin, Agnes Ly, Wendy A Goldberg
Few studies have investigated patterns of emotion coregulation in families of children with Autism Spectrum Disorder (ASD) or contrasted the ways in which their emotion coregulation patterns differ from families of typically developing (TD) children. To address this gap, we used a dynamic systems approach to compare flexible structure and emotional content of coregulation between mothers and children (3-7 years) with ASD (n = 47) and TD children (n = 26). Mother-child play interactions in the home were videotaped and emotion-engagement states were coded in micro-level 5-s intervals based on behavioral and affective expressions...
January 4, 2017: Journal of Abnormal Child Psychology
https://www.readbyqxmd.com/read/28044025/the-singular-nature-of-auditory-and-visual-scene-analysis-in-autism
#20
REVIEW
I-Fan Lin, Aya Shirama, Nobumasa Kato, Makio Kashino
Individuals with autism spectrum disorder often have difficulty acquiring relevant auditory and visual information in daily environments, despite not being diagnosed as hearing impaired or having low vision. Resent psychophysical and neurophysiological studies have shown that autistic individuals have highly specific individual differences at various levels of information processing, including feature extraction, automatic grouping and top-down modulation in auditory and visual scene analysis. Comparison of the characteristics of scene analysis between auditory and visual modalities reveals some essential commonalities, which could provide clues about the underlying neural mechanisms...
February 19, 2017: Philosophical Transactions of the Royal Society of London. Series B, Biological Sciences
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