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Autism epilepsy

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https://www.readbyqxmd.com/read/27889489/the-drug-candidate-adx71441-is-a-novel-potent-and-selective-positive-allosteric-modulator-of-the-gabab-receptor-with-a-potential-for-treatment-of-anxiety-pain-and-spasticity
#1
Mikhail Kalinichev, Françoise Girard, Hasnaà Haddouk, Mélanie Rouillier, Eric Riguet, Isabelle Royer-Urios, Vincent Mutel, Robert Lütjens, Sonia Poli
Positive allosteric modulation of the GABAB receptor is a promising alternative to direct activation of the receptor as a therapeutic approach for treatment of addiction, chronic pain, anxiety, epilepsy, autism, Fragile X syndrome, and psychosis. Here we describe in vitro and in vivo characterization of a novel, potent and selective GABAB positive allosteric modulator (PAM) N-(5-(4-(4-chloro-3-fluorobenzyl)-6-methoxy-3,5-dioxo-4,5-dihydro-1,2,4-triazin-2(3H)-yl)-2-fluorophenyl)acetamide (ADX71441). In vitro, Schild plot and reversibility tests at the target confirmed PAM properties of the compound...
November 23, 2016: Neuropharmacology
https://www.readbyqxmd.com/read/27885946/epilepsy-surgery-in-patients-with-autism
#2
Malgosia A Kokoszka, Patricia E McGoldrick, Maite La Vega-Talbott, Hillary Raynes, Christina A Palmese, Steven M Wolf, Cynthia L Harden, Saadi Ghatan
OBJECTIVE The purpose of this study was to report outcomes of epilepsy surgery in 56 consecutive patients with autism spectrum disorder. METHODS Medical records of 56 consecutive patients with autism who underwent epilepsy surgery were reviewed with regard to clinical characteristics, surgical management, postoperative seizure control, and behavioral changes. RESULTS Of the 56 patients with autism, 39 were male, 45 were severely autistic, 27 had a history of clinically significant levels of aggression and other disruptive behaviors, and 30 were considered nonverbal at baseline...
November 25, 2016: Journal of Neurosurgery. Pediatrics
https://www.readbyqxmd.com/read/27884885/rate-of-epilepsy-in-people-with-autism-and-the-rate-of-autism-in-people-with-epilepsy-are-high
#3
Frank M C Besag
No abstract text is available yet for this article.
December 2016: Evidence-based Medicine
https://www.readbyqxmd.com/read/27878658/role-of-matricellular-proteins-in-disorders-of-the-central-nervous-system
#4
A R Jayakumar, A Apeksha, M D Norenberg
Matricellular proteins (MCPs) are actively expressed non-structural proteins present in the extracellular matrix, which rapidly turnover and possess regulatory roles, as well as mediate cell-cell interactions. MCPs characteristically contain binding sites for other extracellular proteins, cell surface receptors, growth factors, cytokines and proteases, that provide structural support for surrounding cells. MCPs are present in most organs, including brain, and play a major role in cell-cell interactions and tissue repair...
November 23, 2016: Neurochemical Research
https://www.readbyqxmd.com/read/27875746/de-novo-and-inherited-scn8a-epilepsy-mutations-detected-by-gene-panel-analysis
#5
Kameryn M Butler, Cristina da Silva, Yuval Shafir, James D Weisfeld-Adams, John J Alexander, Madhuri Hegde, Andrew Escayg
OBJECTIVES: To determine the incidence of pathogenic SCN8A variants in a cohort of epilepsy patients referred for clinical genetic testing. We also investigated the contribution of SCN8A to autism spectrum disorder, intellectual disability, and neuromuscular disorders in individuals referred for clinical genetic testing at the same testing laboratory. METHODS: Sequence data from 275 epilepsy panels screened by Emory Genetics Laboratory were reviewed for variants in SCN8A...
November 6, 2016: Epilepsy Research
https://www.readbyqxmd.com/read/27875247/comorbidity-prevalence-healthcare-utilization-and-expenditures-of-medicaid-enrolled-adults-with-autism-spectrum-disorders
#6
Rini Vohra, Suresh Madhavan, Usha Sambamoorthi
A retrospective data analysis using 2000-2008 three state Medicaid Analytic eXtract was conducted to examine the prevalence and association of comorbidities (psychiatric and non-psychiatric) with healthcare utilization and expenditures of fee-for-service enrolled adults (22-64 years) with and without autism spectrum disorders (International Classification of Diseases, Ninth Revision-clinical modification code: 299.xx). Autism spectrum disorder cases were 1:3 matched to no autism spectrum disorder controls by age, gender, and race using propensity scores...
October 20, 2016: Autism: the International Journal of Research and Practice
https://www.readbyqxmd.com/read/27872899/de-novo-fgf12-mutation-in-2-patients-with-neonatal-onset-epilepsy
#7
Ilaria Guella, Linda Huh, Marna B McKenzie, Eric B Toyota, E Martina Bebin, Michelle L Thompson, Gregory M Cooper, Daniel M Evans, Sarah E Buerki, Shelin Adam, Margot I Van Allen, Tanya N Nelson, Mary B Connolly, Matthew J Farrer, Michelle Demos
OBJECTIVE: We describe 2 additional patients with early-onset epilepsy with a de novo FGF12 mutation. METHODS: Whole-exome sequencing was performed in 2 unrelated patients with early-onset epilepsy and their unaffected parents. Genetic variants were assessed by comparative trio analysis. Clinical evolution, EEG, and neuroimaging are described. The phenotype and response to treatment was reviewed and compared to affected siblings in the original report. RESULTS: We identified the same FGF12 de novo mutation reported previously (c...
December 2016: Neurology. Genetics
https://www.readbyqxmd.com/read/27866083/neuroanatomical-differences-in-fast-and-slow-rat-strains-with-differential-vulnerability-to-kindling-and-behavioral-comorbidities
#8
Pragati Sharma, Stefanie Dedeurwaerdere, Michael A D Vandenberg, Ke Fang, Leigh A Johnston, Sandy R Shultz, Terence J O'Brien, Krista L Gilby
OBJECTIVE: The neurobiological factors underlying a predisposition towards developing epilepsy and its common behavioral comorbidities are poorly understood. FAST rats are a strain that has been selectively bred for enhanced vulnerability to kindling, while the SLOW strain has been bred to be resistant to kindling. FAST rats also exhibit behavioral traits reminiscent of those observed in neurodevelopmental disorders (autism spectrum disorder (ASD)/attention-deficit/hyperactivity disorder (ADHD)) commonly comorbid with epilepsy...
November 17, 2016: Epilepsy & Behavior: E&B
https://www.readbyqxmd.com/read/27865707/a-comprehensive-database-of-published-tdcs-clinical-trials-2005-2016
#9
REVIEW
Jean-Pascal Lefaucheur
Transcranial direct current stimulation (tDCS) is a technique of noninvasive cortical stimulation allowing significant modification of brain functions. Clinical application of this technique was reported for the first time in March 2005. This paper presents a detailed list of the 340 articles (excluding single case reports) which have assessed the clinical effect of tDCS in patients, at least when delivered to cortical targets. The reviewed conditions were: pain syndromes, Parkinson's disease, dystonia, cerebral palsy, post-stroke limb motor impairment, post-stroke neglect, post-stroke dysphagia, post-stroke aphasia, primary progressive aphasia, multiple sclerosis, epilepsy, consciousness disorders, Alzheimer's disease and other types of dementia, tinnitus, depression, auditory hallucinations and negative symptoms of schizophrenia, addiction and craving, autism, and attention disorders...
December 2016: Neurophysiologie Clinique, Clinical Neurophysiology
https://www.readbyqxmd.com/read/27863250/histone-acetylome-wide-association-study-of-autism-spectrum-disorder
#10
Wenjie Sun, Jeremie Poschmann, Ricardo Cruz-Herrera Del Rosario, Neelroop N Parikshak, Hajira Shreen Hajan, Vibhor Kumar, Ramalakshmi Ramasamy, T Grant Belgard, Bavani Elanggovan, Chloe Chung Yi Wong, Jonathan Mill, Daniel H Geschwind, Shyam Prabhakar
The association of histone modification changes with autism spectrum disorder (ASD) has not been systematically examined. We conducted a histone acetylome-wide association study (HAWAS) by performing H3K27ac chromatin immunoprecipitation sequencing (ChIP-seq) on 257 postmortem samples from ASD and matched control brains. Despite etiological heterogeneity, ≥68% of syndromic and idiopathic ASD cases shared a common acetylome signature at >5,000 cis-regulatory elements in prefrontal and temporal cortex. Similarly, multiple genes associated with rare genetic mutations in ASD showed common "epimutations...
November 17, 2016: Cell
https://www.readbyqxmd.com/read/27861783/risk-of-epilepsy-and-autism-in-full-and-half-siblings-a-population-based-cohort-study
#11
Jakob Christensen, Morten Overgaard, Erik T Parner, Mogens Vestergaard, Diana Schendel
OBJECTIVE: Epilepsy and autism spectrum disorder (ASD) often occur together in the same individual. However, it remains unknown whether siblings of children with ASD have an increased risk of epilepsy and vice versa. This study determines the risk of ASD and epilepsy among younger siblings of children with ASD and epilepsy. DESIGN: The study included all children born in Denmark between January 1, 1980 and 31 December 2006 who participated in follow-up until December 31, 2012 (1,663,302 children)...
November 8, 2016: Epilepsia
https://www.readbyqxmd.com/read/27860117/development-of-a-core-outcome-set-for-epilepsy-in-pregnancy-e-core-a-national-multi-stakeholder-modified-delphi-consensus-study
#12
B H Al Wattar, K Tamilselvan, R Khan, A Kelso, A Sinha, A M Pirie, D McCorry, K S Khan, S Thangaratinam
OBJECTIVE: To develop a set of core outcomes for studies on pregnant women with epilepsy. DESIGN: Delphi consensus study. POPULATION: Healthcare professionals, and patient representatives with lived experience of epilepsy in the UK. METHODS: We used a modified Delphi method and a consultation meeting to achieve consensus. Potential outcomes were identified by systematic review, and were scored using a Likert scale anchored between 1 (least important) and 5 (most important)...
November 16, 2016: BJOG: An International Journal of Obstetrics and Gynaecology
https://www.readbyqxmd.com/read/27843043/hyperekplexia-report-on-phenotype-and-genotype-of-16-jordanian-patients
#13
Amira Masri, Seo-Kyung Chung, Mark I Rees
BACKGROUND: Hyperekplexia, is a rare disorder characterized by excessive startle response to acoustic, visual, or other stimuli. It is inherited in autosomal recessive and dominant pattern. OBJECTIVE: To describe the clinical and genetic features of hyperekplexia in Jordanian patients. METHODS: This retrospective study includes all patients with proved genetic diagnosis of hyperekplexia who presented to our clinic at the Jordan University Hospital from January 2001 through July 2015...
November 11, 2016: Brain & Development
https://www.readbyqxmd.com/read/27836684/ketogenic-diets-improve-behaviors-associated-with-autism-spectrum-disorder-in-a-sex-specific-manner-in-the-el-mouse
#14
David N Ruskin, Jessica A Fortin, Subrina N Bisnauth, Susan A Masino
The core symptoms of autism spectrum disorder are poorly treated with current medications. Symptoms of autism spectrum disorder are frequently comorbid with a diagnosis of epilepsy and vice versa. Medically-supervised ketogenic diets are remarkably effective nonpharmacological treatments for epilepsy, even in drug-refractory cases. There is accumulating evidence that supports the efficacy of ketogenic diets in treating the core symptoms of autism spectrum disorders in animal models as well as limited reports of benefits in patients...
November 9, 2016: Physiology & Behavior
https://www.readbyqxmd.com/read/27830729/causal-evidence-for-the-role-of-specific-gabaergic-interneuron-types-in-entorhinal-recruitment-of-dentate-granule-cells
#15
Cheng-Ta Lee, Min-Hua Kao, Wen-Hsien Hou, Yu-Ting Wei, Chin-Lin Chen, Cheng-Chang Lien
The dentate gyrus (DG) is the primary gate of the hippocampus and controls information flow from the cortex to the hippocampus proper. To maintain normal function, granule cells (GCs), the principal neurons in the DG, receive fine-tuned inhibition from local-circuit GABAergic inhibitory interneurons (INs). Abnormalities of GABAergic circuits in the DG are associated with several brain disorders, including epilepsy, autism, schizophrenia, and Alzheimer disease. Therefore, understanding the network mechanisms of inhibitory control of GCs is of functional and pathophysiological importance...
November 10, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27819284/superimposing-status-epilepticus-on-neuron-subset-specific-pten-haploinsufficient-and-wild-type-mice-results-in-long-term-changes-in-behavior
#16
Gregory D Smith, Jessika White, Joaquin N Lugo
We evaluated the effects of superimposing seizures on a genetic mutation with known involvement in both Autism Spectrum Disorder and in epilepsy. Neuron-subset specific (NS)-Pten heterozygous (HT) and wildtype (WT) adult mice received either intraperitoneal injections of kainic acid (20 mg/kg) to induce status epilepticus or the vehicle (saline). Animals then received a battery of behavioral tasks in order to evaluate activity levels, anxiety, repetitive-stereotyped behavior, social behavior, learning and memory...
November 7, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27818011/human-grin2b-variants-in-neurodevelopmental-disorders
#17
REVIEW
Chun Hu, Wenjuan Chen, Scott J Myers, Hongjie Yuan, Stephen F Traynelis
The development of whole exome/genome sequencing technologies has given rise to an unprecedented volume of data linking patient genomic variability to brain disorder phenotypes. A surprising number of variants have been found in the N-methyl-d-aspartate receptor (NMDAR) gene family, with the GRIN2B gene encoding the GluN2B subunit being implicated in many cases of neurodevelopmental disorders, which are psychiatric conditions originating in childhood and include language, motor, and learning disorders, autism spectrum disorder (ASD), attention deficit hyperactivity disorder (ADHD), developmental delay, epilepsy, and schizophrenia...
October 2016: Journal of Pharmacological Sciences
https://www.readbyqxmd.com/read/27816931/underlying-role-of-mitochondrial-mutagenesis-in-the-pathogenesis-of-a-disease-and-current-approaches-for-translational-research
#18
Maria Paraskevaidi, Pierre L Martin-Hirsch, Maria Kyrgiou, Francis L Martin
Mitochondrial diseases have been extensively investigated over the last three decades, but many questions regarding their underlying aetiologies remain unanswered. Mitochondrial dysfunction is not only responsible for a range of neurological and myopathy diseases but also considered pivotal in a broader spectrum of common diseases such as epilepsy, autism and bipolar disorder. These disorders are a challenge to diagnose and treat, as their aetiology might be multifactorial. In this review, the focus is placed on potential mechanisms capable of introducing defects in mitochondria resulting in disease...
November 5, 2016: Mutagenesis
https://www.readbyqxmd.com/read/27815691/mtor-inhibitors-in-children-current-indications-and-future-directions-in-neurology
#19
REVIEW
Anna Jeong, Michael Wong
The mammalian/mechanistic target of rapamycin (mTOR) pathway is a key signaling pathway that has been implicated in genetic epilepsy syndromes, neurodegenerative diseases, and conditions associated with autism spectrum disorder and cognitive impairment. The mTOR pathway has become an exciting treatment target for these various disorders, with mTOR inhibitors such as rapamycin being studied for their potential therapeutic applications. In particular, tuberous sclerosis complex (TSC) is a genetic disorder resulting from overactivation of the mTOR pathway, and pharmacologic therapy with mTOR inhibitors has emerged as a viable treatment option for the systemic manifestations of the disease...
December 2016: Current Neurology and Neuroscience Reports
https://www.readbyqxmd.com/read/27799862/is-the-wrong-environment-enough-to-cause-autism-and-epilepsy-interplay-between-seizures-and-aberrant-behaviors-due-to-gestational-factors
#20
Elizabeth M Powell
No abstract text is available yet for this article.
September 2016: Epilepsy Currents
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