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Autism epilepsy

Seong-Tshool Hong
The human intestine contains a massive and complex microbial community called gut microbiota. A typical human carries 100 trillion microbes in his/her body which is 10 times greater than the number of their host cells, i.e. whole number of human cells. A combined microbial genome constituting gut microbiota is well excess our own human genome. The microbial composition of gut microbiotata and its role on diseases became a booming area of research, presenting a new paradigm of opportunities for modern medicines...
September 2016: Journal of Hypertension
Shiny Thomas, Mary E Hovinga, Dheeraj Rai, Brian K Lee
Epilepsy is reported to co-occur in individuals with autism spectrum disorder (ASD). Previous studies across the world have found prevalence estimates ranging from 4 to 38 %. We examined parent-reported prevalence of co-occurring epilepsy and ASD in the most recent U.S. National Survey of Children's Health, 2011-2012. All analyses accounted for survey weights to account for the complex sampling design. In the overall analytic sample of 85,248 children ages 2-17, there were 1604 children with ASD (prevalence of 1...
October 17, 2016: Journal of Autism and Developmental Disorders
Chih-Ping Chen, Shuan-Pei Lin, Schu-Rern Chern, Peih-Shan Wu, Yen-Ni Chen, Shin-Wen Chen, Chen-Chi Lee, Dai-Dyi Town, Chien-Wen Yang, Wayseen Wang
OBJECTIVE: To present molecular cytogenetic characterization of an inverted duplication of proximal chromosome 15 [inv dup(15)] presenting as a small supernumerary marker chromosome (sSMC) associated with the inv dup(15) syndrome. CASE REPORT: A 35-year-old woman underwent amniocentesis because of advanced maternal age at 27 weeks of gestation, which revealed an sSMC that was confirmed by fluorescence in situ hybridization (FISH) to be derived from chromosome 15...
October 2016: Taiwanese Journal of Obstetrics & Gynecology
John G Conboy
The Rbfox genes encode an ancient family of sequence-specific RNA binding proteins (RBPs) that are critical developmental regulators in multiple tissues including skeletal muscle, cardiac muscle, and brain. The hallmark of Rbfox proteins is a single high-affinity RRM domain, highly conserved from insects to humans, that binds preferentially to UGCAUG motifs at diverse regulatory sites in pre-mRNA introns, mRNA 3'UTRs, and pre-miRNAs hairpin structures. Versatile regulatory circuits operate on Rbfox pre-mRNA and mRNA to ensure proper expression of Rbfox1 protein isoforms, which then act on the broader transcriptome to regulate alternative splicing networks, mRNA stability and translation, and microRNA processing...
October 17, 2016: Wiley Interdisciplinary Reviews. RNA
Mari Videman, Susanna Stjerna, Reina Roivainen, Taina Nybo, Sampsa Vanhatalo, Eija Gaily, Jukka M Leppänen
INTRODUCTION: Prenatal antiepileptic drug (AED) exposure is associated with an increased risk of cognitive impairment and autism spectrum disorders detected mainly at the age of two to six years. We examined whether the developmental aberrations associated with prenatal AED exposure could be detected already in infancy and whether effects on visual attention can be observed at this early age. MATERIAL AND METHODS: We compared a prospective cohort of infants with in utero exposure to AED (n=56) with infants without drug exposures (n=62)...
October 9, 2016: Epilepsy & Behavior: E&B
Rebecca J Weber, Kenneth D Gadow
The present study aimed to characterize the association of psychopathology with the clinical correlates of epilepsy, asthma, and allergy within and between neurobehavioral syndromes. Participants were consecutively evaluated youth (6-18 years, 75 % male) with autism spectrum disorder (ASD; n = 589) and non-ASD outpatient psychiatry referrals (n = 653). Informants completed a background questionnaire (parents) and a psychiatric symptom severity rating scale (parents, teachers). Youth with ASD had higher rates of epilepsy and allergy but not asthma than psychiatry referrals, even when analyses were limited to youth with IQ ≥ 70...
October 11, 2016: Journal of Abnormal Child Psychology
Yuko Fukata, Norihiko Yokoi, Yuri Miyazaki, Masaki Fukata
Physiological functioning of the brain requires fine-tuned synaptic transmission, and its dysfunction causes various brain disorders such as autism, dementia, and epilepsy. It is therefore extremely important to identify and characterize key regulators of synaptic function. In particular, disease-related synaptic proteins, such as autism-related neurexin-neuroligin and psychiatric disorder-related NMDA receptor, have attracted considerable attention. Recent basic and clinical research has highlighted critical roles of a ligand-receptor complex, LGI1-ADAM22, in synaptic transmission and brain function, as mutations in the LGI1 gene cause autosomal dominant lateral temporal lobe epilepsy and autoantibodies to LGI1 cause limbic encephalitis which is characterized by memory loss and seizures...
October 4, 2016: Neuroscience Research
Yi-Sian Lin, Han-Ying Wang, De-Fong Huang, Pei-Fen Hsieh, Meng-Ying Lin, Chih-Hsuan Chou, I-Ju Wu, Guo-Jen Huang, Susan Shur-Fen Gau, Hsien-Sung Huang
Dysfunction of RBFOX3 has been identified in neurodevelopmental disorders such as autism spectrum disorder, cognitive impairments and epilepsy and a causal relationship with these diseases has been previously demonstrated with Rbfox3 homozygous knockout mice. Despite the importance of RBFOX3 during neurodevelopment, the function of RBFOX3 regarding neurogenesis and synaptogenesis remains unclear. To address this critical question, we profiled the developmental expression pattern of Rbfox3 in the brain of wild-type mice and analyzed brain volume, disease-relevant behaviors, neurogenesis, synaptic plasticity, and synaptogenesis in Rbfox3 homozygous knockout mice and their corresponding wild-type counterparts...
2016: PloS One
Samy L Habib, Noor Y Al-Obaidi, Maciej Nowacki, Katarzyna Pietkun, Barbara Zegarska, Tomasz Kloskowski, Wojciech Zegarski, Tomasz Drewa, Edward A Medina, Zhenze Zhao, Sitai Liang
Tuberous sclerosis complex (TSC) is an autosomal dominant and multi-system genetic disorder in humans. TSC affects around 25,000 to 40,000 individuals in the United States and about 1 to 2 million individuals worldwide, with an estimated prevalence of one in 6,000 newborns. TSC occurs in all races and ethnic groups, and in both genders. TSC is caused by defects or mutations in two genes, TSC1 and TSC2. Loss of TSC1/TSC2 leads to dysregulation of mTOR, resulting in aberrant cell differentiation and development, and abnormal enlargement of cells...
2016: Journal of Cancer
Clara D M van Karnebeek, Kristin Bowden, Elizabeth Berry-Kravis
BACKGROUND: Neurogenetic developmental conditions represent a heterogeneous group of rare inherited disorders with neurological manifestation during development. Treatments for these conditions have largely been supportive; however, a number of treatments are emerging which target the underlying physiology and offer great potential. Our aim was to present a state-of-the-art overview of the current and potential causal treatments available or under development for neurogenetic developmental conditions...
July 26, 2016: Pediatric Neurology
Alexia M Thomas, Michael D Schwartz, Michael D Saxe, Thomas S Kilduff
STUDY OBJECTIVES: Although recent innovations have enabled modification of the rat genome, it is unclear whether enhanced utility of rodents as human disease models will result. We compared EEG and behavioral phenotypes of rats and mice with homozygous deletion of Cntnap2, a gene associated with cortical dysplasia-focal epilepsy (CDFE) and autism spectrum disorders (ASD). METHODS: Male Cntnap2 knockout (KO) and wild-type (WT) rats and male Cntnap2 KO and WT mice were implanted with telemeters to record EEG, EMG, body temperature and locomotor activity...
September 26, 2016: Sleep
Federico Sicca, Elena Ambrosini, Maria Marchese, Luigi Sforna, Ilenio Servettini, Giulia Valvo, Maria Stefania Brignone, Angela Lanciotti, Francesca Moro, Alessandro Grottesi, Luigi Catacuzzeno, Sara Baldini, Sonia Hasan, Maria Cristina D'Adamo, Fabio Franciolini, Paola Molinari, Filippo M Santorelli, Mauro Pessia
Dysfunction of the inwardly-rectifying potassium channels Kir4.1 (KCNJ10) represents a pathogenic mechanism contributing to Autism-Epilepsy comorbidity. To define the role of Kir4.1 variants in the disorder, we sequenced KCNJ10 in a sample of affected individuals, and performed genotype-phenotype correlations. The effects of mutations on channel activity, protein trafficking, and astrocyte function were investigated in Xenopus laevis oocytes, and in human astrocytoma cell lines. An in vivo model of the disorder was also explored through generation of kcnj10a morphant zebrafish overexpressing the mutated human KCNJ10...
September 28, 2016: Scientific Reports
Erik Berg, Øystein A Haaland, Kristin B Feragen, Charles Filip, Hallvard A Vindenes, Dag Moster, Rolv T Lie, Åse Sivertsen
Importance: Parents regularly express concern about long-term health outcomes for children who are born with an oral cleft. Objective: To assess whether oral clefts affect the health and ability to work of young adults. Design, Setting, and Participants: A population-based cohort study was conducted on all individuals born in Norway between calendar years 1967 and 1992 (n = 1 490 401). All patients treated for clefts in Norway during the study period were invited to participate (n = 2860)...
September 26, 2016: JAMA Pediatrics
Gerasimos Kolaitis, Christian G Bouwkamp, Alexia Papakonstantinou, Ioanna Otheiti, Maria Belivanaki, Styliani Haritaki, Terpsihori Korpa, Zinovia Albani, Elena Terzioglou, Polyxeni Apostola, Aggeliki Skamnaki, Athena Xaidara, Konstantina Kosma, Sophia Kitsiou-Tzeli, Maria Tzetis
BACKGROUND: This is a case with multiple chromosomal aberrations which are likely etiological for the observed psychiatric phenotype consisting of attention deficit hyperactivity and conduct disorders. CASE PRESENTATION: We report on an 11 year-old boy, admitted to the pediatric hospital for behavioral difficulties and a delayed neurodevelopmental trajectory. A cytogenetic analysis and high-resolution microarray comparative genomic hybridization (CGH) analysis was performed...
2016: Child and Adolescent Psychiatry and Mental Health
Seong-Tshool Hong
The human intestine contains a massive and complex microbial community called gut microbiota. A typical human carries 100 trillion microbes in his/her body which is 10 times greater than the number of their host cells, i.e. whole number of human cells. A combined microbial genome constituting gut microbiota is well excess our own human genome. The microbial composition of gut microbiotata and its role on diseases became a booming area of research, presenting a new paradigm of opportunities for modern medicines...
September 2016: Journal of Hypertension
Tingting Wang, Ryan T Jones, Jenna M Whippen, Graeme W Davis
The homeostatic modulation of neurotransmitter release, termed presynaptic homeostatic potentiation (PHP), is a fundamental type of neuromodulation, conserved from Drosophila to humans, that stabilizes information transfer at synaptic connections throughout the nervous system. Here, we demonstrate that α2δ-3, an auxiliary subunit of the presynaptic calcium channel, is required for PHP. The α2δ gene family has been linked to chronic pain, epilepsy, autism, and the action of two psychiatric drugs: gabapentin and pregabalin...
September 13, 2016: Cell Reports
Giovanni Provenzano, Zelia Corradi, Katia Monsorno, Tarcisio Fedrizzi, Laura Ricceri, Maria L Scattoni, Yuri Bozzi
Autism spectrum disorders (ASD) are characterized by a high degree of genetic heterogeneity. Genomic studies identified common pathological processes underlying the heterogeneous clinical manifestations of ASD, and transcriptome analyses revealed that gene networks involved in synapse development, neuronal activity, and immune function are deregulated in ASD. Mouse models provide unique tools to investigate the neurobiological basis of ASD; however, a comprehensive approach to identify transcriptional abnormalities in different ASD models has never been performed...
2016: Frontiers in Neuroscience
Melissa Sys, Ann VAN DEN Bogaert, Bram Roosens, Annik Lampo, Anna Jansen, Sara Wouters, Kathelijn Keymolen
BACKGROUND: Chromosomal microarray analysis (CMA) has become increasingly important in the assessment of patients with autism spectrum disorders (ASD), but is sometimes restricted to patients with specific additional characteristics or comorbidities. We aim to evaluate whether certain clinical characteristics could be criteria to perform CMA and also to investigate the diagnostic value of CMA compared to other genetic analyses in our patient population. METHODS: The files of 311 children diagnosed with ASD were retrospectively analysed...
September 8, 2016: Minerva Pediatrica
Fellon J Gaida, James E Gaida
Drowning is a leading cause of death among infants and toddlers. Unique physiological and behavioural factors contribute to high mortality rates. Drowning incidents predominantly occur during warmer months and holidays. Recent studies link high socio-economic status and drowning, in contrast to earlier studies. Cardiac arrhythmias, epilepsy and autism are strong risk factors for drowning incidents. Prevention strategies have substantially lowered drowning rates. While legislation-compliant pool fencing substantially reduces drowning risk, compliance levels are low, and penalties are minor...
October 2016: Journal of Paediatrics and Child Health
Yanke Zhang, Baobing Gao, Yan Xiong, Fangshuo Zheng, Xin Xu, Yong Yang, Yida Hu, Xuefeng Wang
SH3 and multiple ankyrin (ANK) repeat domain 3 (SHANK3) is a synaptic scaffolding protein enriched in the postsynaptic density of excitatory synapses. SHANK3 plays an important role in the formation and maturation of excitatory synapses. In the brain, SHANK3 directly or indirectly interacts with various synaptic molecules including N-methyl-D-aspartate receptor, the metabotropic glutamate receptor (mGluR), and α-amino-3-hydroxy-5-methyl-4-isoxazolepropionic acid receptor. Previous studies have shown that Autism spectrum disorder is a result of mutations of the main SHANK3 isoforms, which may be due to deficit in excitatory synaptic transmission and plasticity...
September 3, 2016: Cellular and Molecular Neurobiology
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