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Autism review

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https://www.readbyqxmd.com/read/29137973/exposure-to-polybrominated-diphenyl-ethers-pbdes-and-child-behavior-current-findings-and-future-directions
#1
REVIEW
Ann M Vuong, Kimberly Yolton, Kim N Dietrich, Joseph M Braun, Bruce P Lanphear, Aimin Chen
Polybrominated diphenyl ethers (PBDEs) are recognized neurotoxicants, but the extent to which PBDEs influence various domains of behavior in children is not fully understood. As such, we reviewed epidemiologic studies published to date to provide an overview of the current state of knowledge on PBDEs' potential role in behavioral development. We identified 19 epidemiologic studies reporting on associations of prenatal and childhood concentrations of PBDEs with behaviors assessed in children from 1 to 12years, including executive function, attention, externalizing and internalizing behaviors, adaptive skills, and social behaviors/Autism Spectrum Disorder (ASD)...
November 11, 2017: Hormones and Behavior
https://www.readbyqxmd.com/read/29128445/the-promise-of-induced-pluripotent-stem-cells-for-neurodevelopmental-disorders
#2
REVIEW
Katrin Linda, Carol Fiuza, Nael Nadif Kasri
A major challenge in clinical genetics and medicine is represented by genetically and phenotypically highly diverse neurodevelopmental disorders, like for example intellectual disability and autism. Intellectual disability is characterized by substantial limitations in cognitive function and adaptive behaviour. At the cellular level, this is reflected by deficits in synaptic structure and plasticity and therefore has been coined as a synaptic disorder or "synaptopathy". In this review, we summarize the findings from recent studies in which iPSCs have been used to model specific neurodevelopmental syndromes, including Fragile X syndrome, Rett syndrome, Williams-Beuren syndrome and Phelan-McDermid syndrome...
November 8, 2017: Progress in Neuro-psychopharmacology & Biological Psychiatry
https://www.readbyqxmd.com/read/29125540/is-high-folic-acid-intake-a-risk-factor-for-autism-a-review
#3
REVIEW
Darrell Wiens, M Catherine DeSoto
Folate is required for metabolic processes and neural development. Insuring its adequate levels for pregnant women through supplementation of grain-based foods with synthetic folic acid (FA) in order to prevent neural tube defects has been an ongoing public health initiative. However, because women are advised to take multivitamins containing FA before and throughout pregnancy, the supplementation together with natural dietary folates has led to a demographic with high and rising serum levels of unmetabolized FA...
November 10, 2017: Brain Sciences
https://www.readbyqxmd.com/read/29124056/microbial-therapeutics-designed-for-infant-health
#4
REVIEW
Claire Watkins, Catherine Stanton, C Anthony Ryan, R Paul Ross
Acknowledgment of the gut microbiome as a vital asset to health has led to multiple studies attempting to elucidate its mechanisms of action. During the first year of life, many factors can cause fluctuation in the developing gut microbiome. Host genetics, maternal health status, mode of delivery, gestational age, feeding regime, and perinatal antibiotic usage, are known factors which can influence the development of the infant gut microbiome. Thus, the microbiome of vaginally born, exclusively breastfed infants at term, with no previous exposure to antibiotics, either directly or indirectly from the mother, is to be considered the "gold standard...
2017: Frontiers in Nutrition
https://www.readbyqxmd.com/read/29119560/prevalence-and-risk-factors-for-autism-spectrum-disorder-in-epilepsy-a-systematic-review-and-meta-analysis
#5
REVIEW
Lauren Strasser, Michelle Downes, Jane Kung, J Helen Cross, Michelle De Haan
AIM: To assess the prevalence and risk factors for autism spectrum disorder (ASD) in epilepsy, and to better understand the relationship and comorbidity between these disorders. METHOD: PsychINFO and PubMed were searched for articles published in the past 15 years that examined the prevalence of ASD in individuals with epilepsy. RESULTS: A total of 19 studies were found with a pooled ASD prevalence of 6.3% in epilepsy. When divided by type, the risks of ASD for general epilepsy, infantile spasms, focal seizures, and Dravet syndrome were 4...
November 9, 2017: Developmental Medicine and Child Neurology
https://www.readbyqxmd.com/read/29119411/systematic-assessment-of-research-on-autism-spectrum-disorder-asd-and-mercury-reveals-conflicts-of-interest-and-the-need-for-transparency-in-autism-research
#6
Janet K Kern, David A Geier, Richard C Deth, Lisa K Sykes, Brian S Hooker, James M Love, Geir Bjørklund, Carmen G Chaigneau, Boyd E Haley, Mark R Geier
Historically, entities with a vested interest in a product that critics have suggested is harmful have consistently used research to back their claims that the product is safe. Prominent examples are: tobacco, lead, bisphenol A, and atrazine. Research literature indicates that about 80-90% of studies with industry affiliation found no harm from the product, while only about 10-20% of studies without industry affiliation found no harm. In parallel to other historical debates, recent studies examining a possible relationship between mercury (Hg) exposure and autism spectrum disorder (ASD) show a similar dichotomy...
November 8, 2017: Science and Engineering Ethics
https://www.readbyqxmd.com/read/29117712/systematic-review-of-differential-reinforcement-of-alternative-behavior-without-extinction-for-individuals-with-autism
#7
Hannah L MacNaul, Leslie C Neely
The purpose of this article is to review the literature on differential reinforcement of alternative behavior procedures without extinction for individuals with autism. Using predetermined inclusion criteria, a total of 10 studies were included and summarized in terms of the following: (a) participant characteristics (e.g., sex, age, and diagnosis), (b) treatment setting, (c) problem behavior, (d) function, (e) alternative behavior, (f) intervention, (g) outcomes, and (h) conclusiveness of evidence. Of the 10 studies, nine demonstrated positive effects and one mixed effects...
November 1, 2017: Behavior Modification
https://www.readbyqxmd.com/read/29112858/sensory-abnormalities-in-children-with-autism-spectrum-disorder
#8
REVIEW
Annio Posar, Paola Visconti
OBJECTIVE: The clinical picture of children with autism spectrum disorder is characterized by deficits of social interaction and communication, as well as by repetitive interests and activities. Sensory abnormalities are a very frequent feature that often go unnoticed due to the communication difficulties of these patients. This narrative review summarizes the main features of sensory abnormalities and the respective implications for the interpretation of several signs and symptoms of autism spectrum disorder, and therefore for its management...
November 4, 2017: Jornal de Pediatria
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
#9
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/29099558/antidepressant-exposure-during-pregnancy-and-risk-of-autism-in-the-offspring-2-do-the-new-studies-add-anything-new
#10
Chittaranjan Andrade
BACKGROUND: During the past year, at least 5 new studies, all observational in design, examined the risk of autism spectrum disorder (ASD) in children exposed to antidepressant medication in utero. These studies had not found inclusion in the many systematic reviews and meta-analyses that had also been published in the past year. METHODS: Noteworthy methods and findings of the new studies are summarized. One of these studies is examined in detail to help the reader understand methodological and conceptual issues that are critical in the field...
September 2017: Journal of Clinical Psychiatry
https://www.readbyqxmd.com/read/29099059/actions-of-brain-derived-neurotrophic-factor-and-glucocorticoid-stress-in-neurogenesis
#11
REVIEW
Tadahiro Numakawa, Haruki Odaka, Naoki Adachi
Altered neurogenesis is suggested to be involved in the onset of brain diseases, including mental disorders and neurodegenerative diseases. Neurotrophic factors are well known for their positive effects on the proliferation/differentiation of both embryonic and adult neural stem/progenitor cells (NSCs/NPCs). Especially, brain-derived neurotrophic factor (BDNF) has been extensively investigated because of its roles in the differentiation/maturation of NSCs/NPCs. On the other hand, recent evidence indicates a negative impact of the stress hormone glucocorticoids (GCs) on the cell fate of NSCs/NPCs, which is also related to the pathophysiology of brain diseases, such as depression and autism spectrum disorder...
November 2, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/29097123/epilepsy-as-a-network-disorder-2-what-can-we-learn-from-other-network-disorders-such-as-dementia-and-schizophrenia-and-what-are-the-implications-for-translational-research
#12
REVIEW
Helen E Scharfman, Andres M Kanner, Alon Friedman, Ingmar Blümcke, Candice E Crocker, Fernando Cendes, Ramon Diaz-Arrastia, Hans Förstl, André A Fenton, Anthony A Grace, Jorge Palop, Jason Morrison, Astrid Nehlig, Asuri Prasad, Karen S Wilcox, Nathalie Jette, Bernd Pohlmann-Eden
There is common agreement that many disorders of the central nervous system are 'complex', that is, there are many potential factors that influence the development of the disease, underlying mechanisms, and successful treatment. Most of these disorders, unfortunately, have no cure at the present time, and therapeutic strategies often have debilitating side effects. Interestingly, some of the 'complexities' of one disorder are found in another, and the similarities are often network defects. It seems likely that more discussions of these commonalities could advance our understanding and, therefore, have clinical implications or translational impact...
October 30, 2017: Epilepsy & Behavior: E&B
https://www.readbyqxmd.com/read/29090080/critical-region-within-22q11-2-linked-to-higher-rate-of-autism-spectrum-disorder
#13
Caitlin C Clements, Tara L Wenger, Alisa R Zoltowski, Jennifer R Bertollo, Judith S Miller, Ashley B de Marchena, Lauren M Mitteer, John C Carey, Benjamin E Yerys, Elaine H Zackai, Beverly S Emanuel, Donna M McDonald-McGinn, Robert T Schultz
BACKGROUND: Previous studies have reported no clear critical region for medical comorbidities in children with deletions or duplications of 22q11.2. The purpose of this study was to evaluate whether individuals with small nested deletions or duplications of the LCR-A to B region of 22q11.2 show an elevated rate of autism spectrum disorder (ASD) compared to individuals with deletions or duplications that do not include this region. METHODS: We recruited 46 patients with nested deletions (n = 33) or duplications (n = 13) of 22q11...
2017: Molecular Autism
https://www.readbyqxmd.com/read/29090079/prospective-investigation-of-foxp1-syndrome
#14
Paige M Siper, Silvia De Rubeis, Maria Del Pilar Trelles, Allison Durkin, Daniele Di Marino, François Muratet, Yitzchak Frank, Reymundo Lozano, Evan E Eichler, Morgan Kelly, Jennifer Beighley, Jennifer Gerdts, Arianne S Wallace, Heather C Mefford, Raphael A Bernier, Alexander Kolevzon, Joseph D Buxbaum
BACKGROUND: Haploinsufficiency of the forkhead-box protein P1 (FOXP1) gene leads to a neurodevelopmental disorder termed FOXP1 syndrome. Previous studies in individuals carrying FOXP1 mutations and deletions have described the presence of autism spectrum disorder (ASD) traits, intellectual disability, language impairment, and psychiatric features. The goal of the present study was to comprehensively characterize the genetic and clinical spectrum of FOXP1 syndrome. This is the first study to prospectively examine the genotype-phenotype relationship in multiple individuals with FOXP1 syndrome, using a battery of standardized clinical assessments...
2017: Molecular Autism
https://www.readbyqxmd.com/read/29082426/anxiety-disorders-and-obsessive-compulsive-disorder-in-individuals-with-autism-spectrum-disorder
#15
REVIEW
Valentina Postorino, Connor M Kerns, Giacomo Vivanti, Jessica Bradshaw, Martina Siracusano, Luigi Mazzone
PURPOSE OF REVIEW: This review aims to synthesize the most recent research on anxiety disorders and obsessive-compulsive disorder (OCD) in individuals with autism spectrum disorder (ASD) and discuss the relationship between these conditions and challenges for assessment. Furthermore, implications for treatment and future directions are discussed. RECENT FINDINGS: Research suggests that anxiety disorders and OCD are highly prevalent in individuals with ASD. However, the significant overlap of ASD features with anxiety and OCD symptomology makes differential diagnosis of these disorders particularly challenging...
October 30, 2017: Current Psychiatry Reports
https://www.readbyqxmd.com/read/29081756/the-locus-preservation-hypothesis-shared-linguistic-profiles-across-developmental-disorders-and-the-resilient-part-of-the-human-language-faculty
#16
Evelina Leivada, Maria Kambanaros, Kleanthes K Grohmann
Grammatical markers are not uniformly impaired across speakers of different languages, even when speakers share a diagnosis and the marker in question is grammaticalized in a similar way in these languages. The aim of this work is to demarcate, from a cross-linguistic perspective, the linguistic phenotype of three genetically heterogeneous developmental disorders: specific language impairment, Down syndrome, and autism spectrum disorder. After a systematic review of linguistic profiles targeting mainly English-, Greek-, Catalan-, and Spanish-speaking populations with developmental disorders (n = 880), shared loci of impairment are identified and certain domains of grammar are shown to be more vulnerable than others...
2017: Frontiers in Psychology
https://www.readbyqxmd.com/read/29077142/-non-invasive-neurostimulation-in-the-treatment-of-child-and-adolescent-psychiatry
#17
S van der Meersche, G Lemmens, C Matton, C Baeken
Neurostimulation is a potentially interesting treatment option for children and adolescents with psychiatric disorders.<br/> AIM: To review the efficacy of two non-invasive neurostimulation techniques, namely repetitive transcranial magnetic stimulation (rtms) and transcranial direct current stimulation (tdcs), in the treatment of child and adolescent psychiatric disorders.<br/> METHOD: We searched the literature research using PubMed.<br/> RESULTS: There is some evidence that rtms is being used to treat unipolar depression, psychosis, autism spectrum disorder, attention deficit hyperactivity disorder and tic disorder...
2017: Tijdschrift Voor Psychiatrie
https://www.readbyqxmd.com/read/29077140/-deep-brain-stimulation-in-psychiatry
#18
M Figee, C Bervoets, D Denys
BACKGROUND: Deep brain stimulation (DBS) is now used regularly to treat therapy-refractory obsessive-compulsive disorders, and is being applied experimentally for refractory depression, Tourette syndrome, addiction, eating disorders, post-traumatic stress disorder, autism and schizophrenia. AIM: To review the effects and mechanisms of dbs and to consider the future opportunities for this type of treatment in psychiatry. METHOD: We reviewed the literature using PubMed...
2017: Tijdschrift Voor Psychiatrie
https://www.readbyqxmd.com/read/29072583/self-injury-in-autism-spectrum-disorder-and-intellectual-disability-exploring-the-role-of-reactivity-to-pain-and-sensory-input
#19
REVIEW
Jane Summers, Ali Shahrami, Stefanie Cali, Chantelle D'Mello, Milena Kako, Andjelka Palikucin-Reljin, Melissa Savage, Olivia Shaw, Yona Lunsky
This paper provides information about the prevalence and topography of self-injurious behavior in children and adults with autism spectrum disorder and intellectual disability. Dominant models regarding the etiology of self-injury in this population are reviewed, with a focus on the role of reactivity to pain and sensory input. Neuroimaging studies are presented and suggestions are offered for future research.
October 26, 2017: Brain Sciences
https://www.readbyqxmd.com/read/29070492/vitamin-d-deficiency-infertility-and-neurodevelopmental-diseases-attention-deficit-hyperactivity-disorder-autism-and-schizophrenia
#20
Michael J Berridge
The process of development depends on a progressive sequence of events that are carefully orchestrated by a number of signalling systems. Alteration in these signalling events results in infertility and neurodevelopmental diseases such as attention deficit hyperactivity disorder (ADHD), autism spectrum disorders (ASD) and schizophrenia. A prominent role throughout development beginning at fertilization and continuing through early development, implantation and organ differentiation such as heart and brain development is regulated by Ca(2+) signalling...
October 25, 2017: American Journal of Physiology. Cell Physiology
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