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https://www.readbyqxmd.com/read/29150292/neonatal-and-regressive-forms-of-autism-diseases-with-similar-symptoms-but-a-different-etiology
#1
William E Barbeau
Autistic Spectrum Disorder (ASD) can be a debilitating, life-long neurocognitive disease. ASD is caused by genetic and epigenetic factors and largely unknown and poorly understood environmental triggers. Signs and symptoms of ASD often appear in the first year of life while the disease strikes other infants who had previously been developing normally at around 2years of age. Ozonoff and her colleagues recently suggested that there are three different pathways or trajectories for the development of ASD in infants 6-24months of age...
November 2017: Medical Hypotheses
https://www.readbyqxmd.com/read/29148287/does-the-brief-observation-of-social-communication-change-help-moving-forward-in-measuring-change-in-early-autism-intervention-studies
#2
Mirjam Kj Pijl, Nanda Nj Rommelse, Monica Hendriks, Manon Wp De Korte, Jan K Buitelaar, Iris J Oosterling
The field of early autism research is in dire need of outcome measures that adequately reflect subtle changes in core autistic behaviors. This article compares the ability of a newly developed measure, the Brief Observation of Social Communication Change (BOSCC), and the Autism Diagnostic Observation Schedule (ADOS) to detect changes in core symptoms of autism in 44 toddlers. The results provide encouraging evidence for the Brief Observation of Social Communication Change as a candidate outcome measure, as reflected in sufficient inter- and intra-rater reliability, independency from other child characteristics, and sensitivity to capture change...
December 1, 2016: Autism: the International Journal of Research and Practice
https://www.readbyqxmd.com/read/29141188/autistic-traits-modulate-the-activity-of-the-ventromedial-prefrontal-cortex-in-response-to-female-faces
#3
Yui Murakami, Shinya Sakai, Kenta Takeda, Daisuke Sawamura, Kazuki Yoshida, Takamichi Hirose, Chisa Ikeda, Hiroki Mani, Toru Yamamoto, Ayahito Ito
Previous findings have revealed abnormal visual attention or processing of faces among individuals with autism spectrum condition (ASC). However, little attention has been paid to the relationship between autistic traits and neural mechanisms associated with representing facial values. Using fMRI, we investigated the patterns of brain activity in the vmPFC and VS in response to faces of elderly males, elderly females, young males, and young females. During fMRI, subjects with a relatively high autism quotient (high group) and those with a relatively low autism quotient (low group) were presented with a face and asked to rate its pleasantness...
November 12, 2017: Neuroscience Research
https://www.readbyqxmd.com/read/29137717/an-autistic-like-profile-of-attention-and-perception-in-synaesthesia
#4
Jamie Ward, Paris Brown, Jasmine Sherwood, Julia Simner
Synaesthesia and autism are two neurodevelopmental conditions that have been shown to co-occur more than expected by chance. The studies reported here test the hypothesis that increased sensory sensitivity and enhanced Attention-to-detail are core cognitive features that are shared between them. In Study 1, we administer self-report measures of sensory sensitivity and autistic traits (the Autism Spectrum Quotient, AQ) to a large heterogeneous sample of synaesthetes. Both sensory sensitivity and the Attention-to-detail subscale of the AQ show a "dose-like" relationship with synaesthesia: namely, more kinds of synaesthesia is related to a greater shift up the autistic spectrum...
October 25, 2017: Cortex; a Journal Devoted to the Study of the Nervous System and Behavior
https://www.readbyqxmd.com/read/29137272/immunological-cytokine-profiling-identifies-tnf-%C3%AE-as-a-key-molecule-dysregulated-in-autistic-children
#5
Jiang Xie, Li Huang, Xiaohong Li, Hua Li, Yongmei Zhou, Hua Zhu, Tianying Pan, Keith M Kendrick, Wenming Xu
Recent studies have suggested that the etiology of autism spectrum disorder (ASD) may be caused by immunological factors, particularly abnormalities in the innate immune system. However, it is still unclear which specific cytokines may be of most importance. The current study therefore investigated which cytokines showed altered concentrations in blood in ASD compared with healthy control children and which were also correlated with symptom severity. Our study sample included 32 children diagnosed with ASD and 28 age and sex-matched typically developing children...
October 10, 2017: Oncotarget
https://www.readbyqxmd.com/read/29133437/abnormal-microglia-and-enhanced-inflammation-related-gene-transcription-in-mice-with-conditional-deletion-of-ctcf-in-camk2a-cre-expressing-neurons
#6
Bryan E McGill, Ruteja A Barve, Susan E Maloney, Amy Strickland, Nicholas Rensing, Peter Wang, Michael Wong, Richard Head, David F Wozniak, Jeffrey Milbrandt
CCCTC-binding factor (CTCF) is an 11 zinc finger DNA-binding domain protein that regulates gene expression by modifying three dimensional chromatin structure. Human mutations in CTCF cause intellectual disability and autistic features. Knocking out Ctcf in mouse embryonic neurons is lethal by neonatal age, but the effects of CTCF deficiency in postnatal neurons are less well studied. We knocked out Ctcf postnatally in glutamatergic forebrain neurons under the control of Camk2a-CreCtcf(loxP/loxP) ;Camk2a-Cre+ (Ctcf CKO) mice of both sexes were viable and exhibited profound deficits in spatial learning/memory, impaired motor co-ordination, and decreased sociability by 4 months of age...
November 13, 2017: Journal of Neuroscience: the Official Journal of the Society for Neuroscience
https://www.readbyqxmd.com/read/29129723/neural-correlates-of-impaired-self-regulation-in-male-youths-with-autism-spectrum-disorder-a-voxel-based-morphometry-study
#7
Hsing-Chang Ni, Hsiang-Yuan Lin, Wen-Yih Isaac Tseng, Yen-Nan Chiu, Yu-Yu Wu, Wen-Che Tsai, Susan Shur-Fen Gau
Although recent studies revealed impaired self-regulation (dysregulation) in autism spectrum disorder (ASD), neural correlates of dysregulation and its impacts on autistic neuroanatomy remain unclear. Voxel-based morphometry was applied on structural MRI images in 81 ASD and 61 typically developing (TD) boys aged 7-17years. Dysregulation was defined by the sum of T-scores of Attention, Aggression, and Anxiety/Depression subscales in the Child Behavior Checklist>180. There were 53 and 28 boys in the ASD+Dysregulation and ASD-Dysregulation groups, respectively...
November 9, 2017: Progress in Neuro-psychopharmacology & Biological Psychiatry
https://www.readbyqxmd.com/read/29122693/vitamin-a-improves-the-symptoms-of-autism-spectrum-disorders-and-decreases-5-hydroxytryptamine-5-ht-a-pilot-study
#8
Min Guo, Jiang Zhu, Ting Yang, Xi Lai, Xiao Liu, Juan Liu, Jie Chen, Tingyu Li
Autism spectrum disorders (ASD) are complicated neurodevelopmental disorders. Many studies have demonstrated that children with autism have multiple nutritional deficiencies and increased serum 5-hydroxytryptamine (5-HT) levels. In our previous study, 77.9% of autistic children were found to have vitamin A deficiency, and the concentration of vitamin A was negatively associated with the CARS score. In the present study, we sought to test whether vitamin A supplementation could improve autistic symptoms and decrease serum 5-HT levels...
November 6, 2017: Brain Research Bulletin
https://www.readbyqxmd.com/read/29116420/assessing-autism-in-adults-an-evaluation-of-the-developmental-dimensional-and-diagnostic-interview-adult-version-3di-adult
#9
William Mandy, Kiri Clarke, Michele McKenner, Andre Strydom, Jason Crabtree, Meng-Chuan Lai, Carrie Allison, Simon Baron-Cohen, David Skuse
We developed a brief, informant-report interview for assessing autism spectrum conditions (ASC) in adults, called the Developmental, Dimensional and Diagnostic Interview-Adult Version (3Di-Adult); and completed a preliminary evaluation. Informant reports were collected for participants with ASC (n = 39), a non-clinical comparison group (n = 29) and a clinical comparison group (n = 20) who had non-autistic mental health conditions. Mean administration time was 38 min (50 min for ASC). Internal consistency (αs ≥ 0...
November 7, 2017: Journal of Autism and Developmental Disorders
https://www.readbyqxmd.com/read/29107450/epilepsy-as-a-network-disorder-1-what-can-we-learn-from-other-network-disorders-such-as-autistic-spectrum-disorder-and-mood-disorders
#10
REVIEW
Andres M Kanner, Helen Scharfman, Nathalie Jette, Evdokia Anagnostou, Christophe Bernard, Carol Camfield, Peter Camfield, Karen Legg, Ilan Dinstein, Peter Giacobe, Alon Friedman, Bernd Pohlmann-Eden
Epilepsy is a neurologic condition which often occurs with other neurologic and psychiatric disorders. The relation between epilepsy and these conditions is complex. Some population-based studies have identified a bidirectional relation, whereby not only patients with epilepsy are at increased risk of suffering from some of these neurologic and psychiatric disorders (migraine, stroke, dementia, autism, depression, anxiety disorders, Attention deficit hyperactivity disorder (ADHD), and psychosis), but also patients with these conditions are at increased risk of suffering from epilepsy...
October 26, 2017: Epilepsy & Behavior: E&B
https://www.readbyqxmd.com/read/29104681/association-between-beta-sympathomimetic-tocolysis-and-risk-of-autistic-spectrum-disorders-behavioural-and-developmental-outcome-in-toddlers
#11
Mengühan Araz Altay, Işık Görker, Rakhshanda Aslanova, Leyla Bozatlı, Nesrin Turan, Petek Balkanlı Kaplan
AIM: To investigate whether maternal intravenous beta-mimetic tocolytic therapy increases the risk of autistic spectrum disorders (ASD) and poorer behavioural and developmental outcomes. METHOD: Our study is a prospective case-control study among 90 children between 1.5 and three years old. Cases (n = 46) were toddlers with betamimetic tocolytic exposure; control group toddlers (n = 44) were tocolytic untreated. Treated and untreated groups were also divided into subgroups: term and preterm delivered...
October 15, 2017: Open Access Macedonian Journal of Medical Sciences
https://www.readbyqxmd.com/read/29102779/sialic-acid-and-anti-ganglioside-antibody-levels-in-children-with-autism-spectrum-disorders
#12
Xiaolei Yang, Shuang Liang, Lin Wang, Panpan Han, Xitao Jiang, Jianli Wang, Yanqiu Hao, Lijie Wu
BACKGROUND: Autism spectrum disorders (ASD) may result from a combination of genetic and environmental factors, and impact neurological functions and behaviors. Sialic acid (SA) is an indispensable nutrient for early brain development, and its polymer polySia (PSA) can modify neural cell adhesion molecules (NCAM), thereby indirectly mediating neuronal outgrowth, synaptic connectivity and memory formation. To investigate the association between SA and ASD, we conducted a case-control study...
November 1, 2017: Brain Research
https://www.readbyqxmd.com/read/29101779/decreased-reward-value-of-biological-motion-among-individuals-with-autistic-traits
#13
Elin H Williams, Emily S Cross
The Social Motivation Theory posits that a reduced sensitivity to the value of social stimuli, specifically faces, can account for social impairments in Autism Spectrum Disorders (ASD). Research has demonstrated that typically developing (TD) individuals preferentially orient towards another type of salient social stimulus, namely biological motion. Individuals with ASD, however, do not show this preference. While the reward value of faces to both TD and ASD individuals has been well-established, the extent to which individuals from these populations also find human motion to be rewarding remains poorly understood...
November 1, 2017: Cognition
https://www.readbyqxmd.com/read/29100626/heritable-variation-with-little-or-no-maternal-effect-accounts-for-recurrence-risk-to-autism-spectrum-disorder-in-sweden
#14
Benjamin Hon Kei Yip, Dan Bai, Behrang Mahjani, Lambertus Klei, Yudi Pawitan, Christina M Hultman, Dorothy E Grice, Kathryn Roeder, Joseph D Buxbaum, Bernie Devlin, Abraham Reichenberg, Sven Sandin
BACKGROUND: Autism spectrum disorder (ASD) has both genetic and environmental origins, including potentially maternal effects. Maternal effects describe association of one or more maternal phenotypes with liability to ASD in progeny that are independent of maternally transmitted risk alleles. While maternal effects could play an important role, consistent with association to maternal traits such as immune status, no study has estimated maternal, additive genetic, and environmental effects in ASD...
September 21, 2017: Biological Psychiatry
https://www.readbyqxmd.com/read/29097906/reflections-of-a-community-based-participatory-researcher-from-the-intersection-of-disability-advocacy-engineering-and-the-academy
#15
Dora M Raymaker
This article uses an evocative autoethnographic approach to explore the experience of being an insider-researcher in a community-based participatory research setting. Taking a holistic perspective and using the form of narrative story-telling, I examine the dynamics between the typically marginalizing (but sometimes empowering) experience of being an autistic woman and the typically privileging (but sometimes oppressive) experience of being an engineering professional, during a time of career upheaval. Themes of motivations and mentors, adversity from social services and the academy, belonging, the slipperiness of intersectional positioning, feedback cycles of opportunity, dichotomies of competence and inadequacy, heightened stakes, and power and resistance are explored through the narrative...
September 2017: Action Research
https://www.readbyqxmd.com/read/29093634/valproic-acid-induces-telomerase-reverse-transcriptase-expression-during-cortical-development
#16
Ki Chan Kim, Chang Soon Choi, Edson Luck T Gonzales, Darine Froy N Mabunga, Sung Hoon Lee, Se Jin Jeon, Ram Hwangbo, Minha Hong, Jong Hoon Ryu, Seol-Heui Han, Geon Ho Bahn, Chan Young Shin
The valproic acid (VPA)-induced animal model is one of the most widely utilized environmental risk factor models of autism. Autism spectrum disorder (ASD) remains an insurmountable challenge among neurodevelopmental disorders due to its heterogeneity, unresolved pathological pathways and lack of treatment. We previously reported that VPA-exposed rats and cultured rat primary neurons have increased Pax6 expression during post-midterm embryonic development which led to the sequential upregulation of glutamatergic neuronal markers...
October 2017: Experimental Neurobiology
https://www.readbyqxmd.com/read/29091821/are-gastrointestinal-and-sleep-problems-associated-with-behavioral-symptoms-of-autism-spectrum-disorder
#17
Xiao-Lei Yang, Shuang Liang, Ming-Yang Zou, Cai-Hong Sun, Pan-Pan Han, Xi-Tao Jiang, Wei Xia, Li-Jie Wu
Many children with autism spectrum disorder (ASD) suffer from concurrent medical symptoms, including gastrointestinal (GI) and sleeping problems. However, there is limited information on the correlation between co-morbidities and autistic behavioral symptoms. In this study, we estimated the prevalence of GI and sleep problems in Chinese ASD children, examined the impacts of GI and sleep problems on autistic behavioral symptoms, and investigated the factors associated with GI and sleep problems. The survey included 169 ASD and 172 healthy children...
October 24, 2017: Psychiatry Research
https://www.readbyqxmd.com/read/29079819/perturbed-wnt-signaling-leads-to-neuronal-migration-delay-altered-interhemispheric-connections-and-impaired-social-behavior
#18
Riccardo Bocchi, Kristof Egervari, Laura Carol-Perdiguer, Beatrice Viale, Charles Quairiaux, Mathias De Roo, Michael Boitard, Suzanne Oskouie, Patrick Salmon, Jozsef Z Kiss
Perturbed neuronal migration and circuit development have been implicated in the pathogenesis of neurodevelopmental diseases; however, the direct steps linking these developmental errors to behavior alterations remain unknown. Here we demonstrate that Wnt/C-Kit signaling is a key regulator of glia-guided radial migration in rat somatosensory cortex. Transient downregulation of Wnt signaling in migrating, callosal projection neurons results in delayed positioning in layer 2/3. Delayed neurons display reduced neuronal activity with impaired afferent connectivity causing permanent deficit in callosal projections...
October 27, 2017: Nature Communications
https://www.readbyqxmd.com/read/29078024/don-t-ask-me-what-s-the-matter-ask-me-what-matters-acute-mental-health-facility-experiences-of-people-living-with-autism-spectrum-conditions
#19
Paul Maloret, Tricia Scott
BACKGROUND: This qualitative study explored how mental health inpatients with autistic spectrum conditions experience and cope with anxiety when admitted to an acute mental health inpatient facility in the UK. Anxiety is a common characteristic for people who live with autistic spectrum conditions and whilst a plethora of studies on anxiety in this population are published which correlate anxiety with mental health service experience, little is known about the actual triggers of anxiety and its manifestations...
October 27, 2017: Journal of Psychiatric and Mental Health Nursing
https://www.readbyqxmd.com/read/29075622/autistic-siblings-with-novel-mutations-in-two-different-genes-insight-for-genetic-workups-of-autistic-siblings-and-connection-to-mitochondrial-dysfunction
#20
Barrett J Burger, Shannon Rose, Sirish C Bennuri, Pritmohinder S Gill, Marie L Tippett, Leanna Delhey, Stepan Melnyk, Richard E Frye
The prevalence of autism spectrum disorder (ASD) is high, yet the etiology of this disorder is still uncertain. Advancements in genetic analysis have provided the ability to identify potential genetic changes that may contribute to ASD. Interestingly, several genetic syndromes have been linked to metabolic dysfunction, suggesting an avenue for treatment. In this case study, we report siblings with ASD who had similar initial phenotypic presentations. Whole exome sequencing (WES) revealed a novel c.795delT mutation in the WDR45 gene affecting the girl, which was consistent with her eventual progression to a Rett-like syndrome phenotype including seizures along with a stereotypical cyclic breathing pattern...
2017: Frontiers in Pediatrics
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