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https://www.readbyqxmd.com/read/28430672/lamotrigine-uses-in-psychiatric-practice-beyond-bipolar-prophylaxis-a-hope-or-hype
#1
Ahmed Naguy, Najah Al-Enezi
BACKGROUND: Lamotrigine (LAM), an antiepileptic, with panoply of indications and uses in neurology, is FDA approved, in psychiatry, for bipolar prophylaxis. Apart from this indication, trend of its use in psychiatry is on the rise addressing a multitude of disorders. STUDY QUESTION: LAM remains one of only few psychotropic drugs with antiglutamate activity. This might render LAM a potential therapeutic option in treatment-resistant major psychiatric disorders. We reviewed LAM pharmacology and its diverse indications while examining the extant evidence...
April 19, 2017: American Journal of Therapeutics
https://www.readbyqxmd.com/read/28429618/the-clinician-perspective-on-sex-differences-in-autism-spectrum-disorders
#2
Rene Jamison, Somer L Bishop, Marisela Huerta, Alycia K Halladay
Research studies using existing samples of individuals with autism spectrum disorders have identified differences in symptoms between males and females. Differences are typically reported in school age and adolescence, with similarities in symptom presentation at earlier ages. However, existing studies on sex differences are significantly limited, making it challenging to discern if, how, and at what point in development females with autism spectrum disorder actually exhibit a different behavioral presentation than males...
April 1, 2017: Autism: the International Journal of Research and Practice
https://www.readbyqxmd.com/read/28429605/parent-perspectives-on-home-participation-of-high-functioning-children-with-autism-spectrum-disorder-compared-with-a-matched-group-of-children-without-autism-spectrum-disorder
#3
Snæfrídur T Egilson, Gunnhildur Jakobsdóttir, Linda B Ólafsdóttir
Few studies have focused on home participation of high-functioning children with autism spectrum disorder. We employed a mixed-methods design to explore and compare parent perspectives on (1) participation of children with and without autism spectrum disorder in activities at home, (2) the environmental features and resources that affect these children's home participation and (3) the strategies parents use to help their children participate at home. The Participation and Environment Measure for Children and Youth (PEM-CY) was used to gather online survey and qualitative data from parents of 99 high-functioning children with autism spectrum disorder and 241 children without autism spectrum disorder...
April 1, 2017: Autism: the International Journal of Research and Practice
https://www.readbyqxmd.com/read/28429189/using-time-perception-to-explore-implicit-sensitivity-to-emotional-stimuli-in-autism-spectrum-disorder
#4
Catherine R G Jones, Anna Lambrechts, Sebastian B Gaigg
Establishing whether implicit responses to emotional cues are intact in autism spectrum disorder (ASD) is fundamental to ascertaining why their emotional understanding is compromised. We used a temporal bisection task to assess for responsiveness to face and wildlife images that varied in emotional salience. There were no significant differences between an adult ASD and comparison group, with both showing implicit overestimation of emotional stimuli. Further, there was no correlation between overestimation of emotional stimuli and autistic traits in undergraduate students...
April 20, 2017: Journal of Autism and Developmental Disorders
https://www.readbyqxmd.com/read/28428202/precision-physiology-and-rescue-of-brain-ion-channel-disorders
#5
REVIEW
Jeffrey Noebels
Ion channel genes, originally implicated in inherited excitability disorders of muscle and heart, have captured a major role in the molecular diagnosis of central nervous system disease. Their arrival is heralded by neurologists confounded by a broad phenotypic spectrum of early-onset epilepsy, autism, and cognitive impairment with few effective treatments. As detection of rare structural variants in channel subunit proteins becomes routine, it is apparent that primary sequence alone cannot reliably predict clinical severity or pinpoint a therapeutic solution...
April 20, 2017: Journal of General Physiology
https://www.readbyqxmd.com/read/28427452/modeling-environmental-risk-factors-of-autism-in-mice-induces-ibd-related-gut-microbial-dysbiosis-and-hyperserotonemia
#6
Joon Seo Lim, Mi Young Lim, Yongbin Choi, GwangPyo Ko
Autism spectrum disorder (ASD) is a range of neurodevelopmental conditions that are sharply increasing in prevalence worldwide. Intriguingly, ASD is often accompanied by an array of systemic aberrations including (1) increased serotonin, (2) various modes of gastrointestinal disorders, and (3) inflammatory bowel disease (IBD), albeit the underlying cause for such comorbidities remains uncertain. Also, accumulating number of studies report that the gut microbial composition is significantly altered in children with ASD or patients with IBD...
April 20, 2017: Molecular Brain
https://www.readbyqxmd.com/read/28427329/cross-disorder-comparative-analysis-of-comorbid-conditions-reveals-novel-autism-candidate-genes
#7
Leticia Diaz-Beltran, Francisco J Esteban, Maya Varma, Alp Ortuzk, Maude David, Dennis P Wall
BACKGROUND: Numerous studies have highlighted the elevated degree of comorbidity associated with autism spectrum disorder (ASD). These comorbid conditions may add further impairments to individuals with autism and are substantially more prevalent compared to neurotypical populations. These high rates of comorbidity are not surprising taking into account the overlap of symptoms that ASD shares with other pathologies. From a research perspective, this suggests common molecular mechanisms involved in these conditions...
April 20, 2017: BMC Genomics
https://www.readbyqxmd.com/read/28427035/associations-between-executive-functions-and-mental-health-outcomes-for-adults-with-autism-spectrum-disorder
#8
David Zimmerman, Tamara Ownsworth, Analise O'Donovan, Jacqueline Roberts, Matthew J Gullo
Associations between executive functions (EF) and mental-health in adults with autism spectrum disorder (ASD) were examined. Forty-two adults with ASD completed measures of EF, mood and self-concept. Better concept formation and social inference skills were significantly associated with fewer anxiety symptoms. Conversely, participants with better non-verbal reasoning, cognitive flexibility and social cognition reported more negative self-concept and lower self-esteem. Overall, individuals with impaired EF are more prone to anxiety, whereas those with stronger EF are more likely to experience negative self-concept...
April 12, 2017: Psychiatry Research
https://www.readbyqxmd.com/read/28426832/a-systematic-review-of-pragmatic-language-interventions-for-children-with-autism-spectrum-disorder
#9
Lauren Parsons, Reinie Cordier, Natalie Munro, Annette Joosten, Renée Speyer
There is a need for evidence based interventions for children with autism spectrum disorder (ASD) to limit the life-long, psychosocial impact of pragmatic language impairments. This systematic review identified 22 studies reporting on 20 pragmatic language interventions for children with ASD aged 0-18 years. The characteristics of each study, components of the interventions, and the methodological quality of each study were reviewed. Meta-analysis was conducted to assess the effectiveness of 15 interventions...
2017: PloS One
https://www.readbyqxmd.com/read/28426389/melatonin-and-circadian-rhythms-in-autism-case-report
#10
Gabriela Melloni Zuculo, Bruno S B Gonçalves, Clay Brittes, Luiz Menna-Barreto, Luciana Pinato
Among the most co-occurring conditions in autism spectrum disorders (ASD), there are sleep disorders which may exacerbate associated behavioral disorders and lead to intensification of existing autistic symptoms. Several studies investigating the use of melatonin in the treatment of sleep disorders in ASD have shown comparative efficiency in sleep with little or no side effects. Here we report a case of ASD with non-24-hour rhythm and the effect of melatonin in circadian parameters by actigraphy. Visual analysis of the first 10 days recorded and the periodogram suggest that this patient showed a non-24-hour rhythm...
2017: Chronobiology International
https://www.readbyqxmd.com/read/28426285/the-yin-and-yang-of-autism-genetics-how-rare-de-novo-and-common-variations-affect-liability
#11
Pauline Chaste, Kathryn Roeder, Bernie Devlin
The etiology of autism spectrum disorder (ASD) is complex, involving both genetic and environmental contributions to individual and population-level liability. Early researchers hypothesized that ASD arises from polygenic inheritance, but later results, such as the identification of mutations in certain genes that are responsible for syndromes associated with ASD, led others to propose that de novo mutations of major effect would account for most cases. This yin and yang of monogenic causes and polygenic inheritance continues to this day...
April 19, 2017: Annual Review of Genomics and Human Genetics
https://www.readbyqxmd.com/read/28425373/calm-child-programme
#12
Ereny Gobrial, Raghu Raghavan
Children with autism spectrum disorder (ASD) and intellectual disabilities (IDs) are more vulnerable to experiencing anxiety disorders. Parental involvement in intervention is crucial for successful management of the interventions in the population of people with ASDs. This article describes the design and evaluation of parenting programme for anxiety disorders in children and young people with ASD and ID. In phase 1 semi-structured interviews were conducted to explore management strategies for anxiety at home and in school settings...
January 1, 2017: Journal of Intellectual Disabilities: JOID
https://www.readbyqxmd.com/read/28425298/understanding-self-reported-difficulties-in-decision-making-by-people-with-autism-spectrum-disorders
#13
Lydia Vella, Howard A Ring, Mike Rf Aitken, Peter C Watson, Alexander Presland, Isabel Ch Clare
Autobiographical accounts and a limited research literature suggest that adults with autism spectrum disorders can experience difficulties with decision-making. We examined whether some of the difficulties they describe correspond to quantifiable differences in decision-making when compared to adults in the general population. The participants (38 intellectually able adults with autism spectrum disorders and 40 neurotypical adults) were assessed on three tasks of decision-making (Iowa Gambling Task, Cambridge Gamble Task and Information Sampling Task), which quantified, respectively, decision-making performance and relative attention to negative and positive outcomes, speed and flexibility, and information sampling...
April 1, 2017: Autism: the International Journal of Research and Practice
https://www.readbyqxmd.com/read/28425213/genotype-phenotype-correlations-in-cornelia-de-lange-syndrome-behavioral-characteristics-and-changes-with-age
#14
Joanna Moss, Jessica Penhallow, Morad Ansari, Stephanie Barton, David Bourn, David R FitzPatrick, Judith Goodship, Peter Hammond, Catherine Roberts, Alice Welham, Chris Oliver
Cornelia de Lange syndrome (CdLS) is a multisystem genetic disorder associated with unusual facial features, limb abnormalities, a wide range of health conditions, and intellectual disability. Mutations in five genes that encode (SMC1A, SMC3, RAD21) or regulate (NIPBL, HDAC8) the cohesin complex have been identified in up to 70% of individuals. Genetic cause remains unknown for a proportion of individuals. There is substantial heterogeneity in all aspects of CdLS but very little is known about what predicts phenotypic heterogeneity...
April 19, 2017: American Journal of Medical Genetics. Part A
https://www.readbyqxmd.com/read/28425060/positron-emission-tomography-assessment-of-cerebral-glucose-metabolic-rates-in-autism-spectrum-disorder-and-schizophrenia
#15
Serge A Mitelman, Marie-Cecile Bralet, M Mehmet Haznedar, Eric Hollander, Lina Shihabuddin, Erin A Hazlett, Monte S Buchsbaum
Several models have been proposed to account for observed overlaps in clinical features and genetic predisposition between schizophrenia and autism spectrum disorder. This study assessed similarities and differences in topological patterns and vectors of glucose metabolism in both disorders in reference to these models. Co-registered (18)fluorodeoxyglucose PET and MRI scans were obtained in 41 schizophrenia, 25 ASD, and 55 healthy control subjects. AFNI was used to map cortical and subcortical regions of interest...
April 19, 2017: Brain Imaging and Behavior
https://www.readbyqxmd.com/read/28425022/social-motor-synchronization-insights-for-understanding-social-behavior-in-autism
#16
Paula Fitzpatrick, Veronica Romero, Joseph L Amaral, Amie Duncan, Holly Barnard, Michael J Richardson, R C Schmidt
Impairments in social interaction and communication are critical features of ASD but the underlying processes are poorly understood. An under-explored area is the social motor synchronization that happens when we coordinate our bodies with others. Here, we explored the relationships between dynamical measures of social motor synchronization and assessments of ASD traits. We found (a) spontaneous social motor synchronization was associated with responding to joint attention, cooperation, and theory of mind while intentional social motor synchronization was associated with initiating joint attention and theory of mind; and (b) social motor synchronization was associated with ASD severity but not fully explained by motor problems...
April 19, 2017: Journal of Autism and Developmental Disorders
https://www.readbyqxmd.com/read/28425021/is-the-autism-spectrum-quotient-a-valid-measure-of-traits-associated-with-the-autism-spectrum-a-rasch-validation-in-adults-with-and-without-autism-spectrum-disorders
#17
Lars-Olov Lundqvist, Helen Lindner
The Autism-Spectrum Quotient (AQ) is among the most widely used scales assessing autistic traits in the general population. However, some aspects of the AQ are questionable. To test its scale properties, the AQ was translated into Swedish, and data were collected from 349 adults, 130 with autism spectrum disorder (ASD) and 219 without ASD, and analysed with Rasch. Several scale properties of the AQ were satisfactory but it did not meet the criterion of a unidimensional measure of autistic traits. The Rasch analysis showed that the 50-item AQ could be reduced to a 12-item subset with little loss of explanatory power, with the potential to efficiently measure the degree to which adults with and without ASD show autistic traits...
April 19, 2017: Journal of Autism and Developmental Disorders
https://www.readbyqxmd.com/read/28425020/acoustic-properties-of-cries-in-12-month-old-infants-at-high-risk-of-autism-spectrum-disorder
#18
Lisa M Unwin, Ildiko Bruz, Murray T Maybery, Victoria Reynolds, Natalie Ciccone, Cheryl Dissanayake, Martha Hickey, Andrew J O Whitehouse
There is preliminary evidence that infant siblings of children with Autism Spectrum Disorder (ASD) have an atypical pattern of cry, characterized by higher fundamental frequency and increased dysphonation. This prospective study collected multiple cry samples of 12-month old siblings of children with ASD (n = 22, 'high-risk' group) and 12-month olds with no family history of ASD (n = 27, 'low risk' group). While there was no difference between groups in the fundamental frequency or degree of phonation of the cry samples, the duration of each cry unit was significantly shorter in the high-risk siblings (p < ...
April 19, 2017: Journal of Autism and Developmental Disorders
https://www.readbyqxmd.com/read/28424947/neurodevelopmental-effects-of-antiepileptic-drugs
#19
Marissa Kellogg, Kimford J Meador
Increasing evidence suggests that exposure to certain antiepileptic drugs (AEDs) during critical periods of development may induce transient or long-lasting neurodevelopmental deficits across cognitive, motor and behavioral domains. The developing nervous system may endure prolonged chronic exposure to AEDs during pregnancy (in utero) or during childhood, which can lead to neurodevelopmental defects such as congenital neural tube defects, lower IQ, language deficits, autism and ADHD. To date, valproate is the most widely recognized AED to significantly negatively affect neurodevelopment, and demonstrates greater adverse effects than any other AEDs that have been assessed...
April 19, 2017: Neurochemical Research
https://www.readbyqxmd.com/read/28424797/magnetoencephalography-as-a-tool-in-psychiatric-research-current-status-and-perspective
#20
REVIEW
Peter J Uhlhaas, Peter Liddle, David E J Linden, Anna C Nobre, Krish D Singh, Joachim Gross
The application of neuroimaging to provide mechanistic insights into circuit dysfunctions in major psychiatric conditions and the development of biomarkers are core challenges in current psychiatric research. We propose that recent technological and analytic advances in magnetoencephalography (MEG), a technique that allows measurement of neuronal events directly and noninvasively with millisecond resolution, provides novel opportunities to address these fundamental questions. Because of its potential in delineating normal and abnormal brain dynamics, we propose that MEG provides a crucial tool to advance our understanding of pathophysiological mechanisms of major neuropsychiatric conditions, such as schizophrenia, autism spectrum disorders, and the dementias...
April 2017: Biological Psychiatry: Cognitive Neuroscience and Neuroimaging
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