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infantile epilepsy

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https://www.readbyqxmd.com/read/29778029/late-onset-childhood-neuronal-ceroid-lipofuscinosis-early-clinical-and-electroencephalographic-markers
#1
Lucas Beltrán, Gabriela Reyes Valenzuela, Mariana Loos, Rodrigo Vargas, Rafael Lizama, Pablo Spinsanti, Roberto Caraballo
PURPOSE: The objective of the study was to describe the initial clinical and electroencephalographic findings in children with late-infantile neuronal ceroid lipofuscinosis (LINCL). METHOD: The clinical charts of 35 patients seen between 1990 and 2016 were reviewed. The patients were divided into two groups: Group 1 (G1) consisting of 12 patients with NCL type 2 (CLN2) disease confirmed by enzymatic activity in dried blood spots on filter paper and/or genetic studies, and Group 2 (G2) consisting of 23 patients with a diagnosis of LINCL based on pathology studies by muscle biopsy...
May 15, 2018: Epilepsy Research
https://www.readbyqxmd.com/read/29764460/benign-and-severe-early-life-seizures-a-round-in-the-first-year-of-life
#2
REVIEW
Piero Pavone, Giovanni Corsello, Martino Ruggieri, Silvia Marino, Simona Marino, Raffaele Falsaperla
At the onset, differentiation between abnormal non-epileptic movements, and epileptic seizures presenting in early life is difficult as is clinical diagnosis and prognostic evaluation of the various seizure disorders presenting at this age. Seizures starting in the first year of life including the neonatal period might have a favorable course, such as in infants presenting with benign familial neonatal epilepsy, febrile seizures simplex or acute symptomatic seizures. However, in some cases, the onset of seizures at birth or in the first months of life have a dramatic evolution with severe cerebral impairment...
May 15, 2018: Italian Journal of Pediatrics
https://www.readbyqxmd.com/read/29758257/a-mechanistic-review-on-gnao1-associated-movement-disorder
#3
REVIEW
Huijie Feng, Suad Khalil, Richard R Neubig, Christos Sidiropoulos
Mutations in the GNAO1 gene cause a complex constellation of neurological disorders including epilepsy, developmental delay, and movement disorders. GNAO1 encodes Gαo , the α subunit of Go , a member of the Gi/o family of heterotrimeric G protein signal transducers. Go is the most abundant membrane protein in the mammalian central nervous system and plays major roles in synaptic neurotransmission and neurodevelopment. GNAO1 mutations were first reported in early infantile epileptic encephalopathy 17 (EIEE17) but are also associated with a more common syndrome termed neurodevelopmental disorder with involuntary movements (NEDIM)...
May 11, 2018: Neurobiology of Disease
https://www.readbyqxmd.com/read/29731400/treatment-of-infantile-spasms-by-pediatric-neurologists-in-japan
#4
Shin-Ichiro Hamano, Toshisaburo Nagai, Ryuki Matsuura, Yuko Hirata, Satoru Ikemoto, Atsuko Oba, Erika Hiwatari
OBJECTIVE: To clarify changes in clinical practice for infantile spasms, including West syndrome, in Japan over the past two decades. METHODS: We investigated common treatment strategies for infantile spasms among 157 pediatric neurologists from a designated training facility for pediatric neurology and/or a designated training facility for epilepsy in Japan. A questionnaire was used to investigate use of adrenocorticotropic hormone (ACTH) therapy including daily dose, treatment duration, and tapering off period, and preferred first to fifth-line treatment choices...
May 3, 2018: Brain & Development
https://www.readbyqxmd.com/read/29713355/epilepsy-syndromes-during-the-first-year-of-life-and-the-usefulness-of-an-epilepsy-gene-panel
#5
REVIEW
Eun Hye Lee
Recent advances in genetics have determined that a number of epilepsy syndromes that occur in the first year of life are associated with genetic etiologies. These syndromes range from benign familial epilepsy syndromes to early-onset epileptic encephalopathies that lead to poor prognoses and severe psychomotor retardation. An early genetic diagnosis can save time and overall cost by reducing the amount of time and resources expended to reach a diagnosis. Furthermore, a genetic diagnosis can provide accurate prognostic information and, in certain cases, enable targeted therapy...
April 2018: Korean Journal of Pediatrics
https://www.readbyqxmd.com/read/29699863/two-japanese-cases-of-epileptic-encephalopathy-associated-with-an-fgf12-mutation
#6
Ryo Takeguchi, Kazuhiro Haginoya, Yuri Uchiyama, Atsushi Fujita, Michiaki Nagura, Eri Takeshita, Takehiko Inui, Yukimune Okubo, Ryo Sato, Takuya Miyabayashi, Noriko Togashi, Takashi Saito, Eiji Nakagawa, Kenji Sugai, Mitsuko Nakashima, Hirotomo Saitsu, Naomichi Matsumoto, Masayuki Sasaki
A heterozygous mutation in the fibroblast growth factor 12 (FGF12) gene, which elevates the voltage dependence of neuronal sodium channel fast inactivation, was recently identified in some patients with epileptic encephalopathy. Here we report 1 Japanese patient diagnosed with early infantile epileptic encephalopathy (EIEE) and another diagnosed with epilepsy of infancy with migrating focal seizures (EIMFS). These 2 patients had an identical heterozygous missense mutation [c.341G>A:p.(Arg114His)] in FGF12 , which was identified with whole-exome sequencing...
April 23, 2018: Brain & Development
https://www.readbyqxmd.com/read/29687029/de-novo-kcnq2-mutation-in-one-case-of-epilepsy-of-infancy-with-migrating-focal-seizures-that-evolved-to-infantile-spasms
#7
Haolin Duan, Jing Peng, Miriam Kessi, Fei Yin
Epilepsy of infancy with migrating focal seizures (EIMFS) is a rare type of early-onset epileptic encephalopathy that is characterized by refractory migratory multifocal seizures that migrate between hemispheres. Its etiology is not well known although it is postulated to occur due to channelopathy. The authors report the first case of EIMFS due to a de novo heterozygous mutation in exon 4(c.881C>T missense mutation, p.Ala294Val, NM_172107.2) in KCNQ2 gene which later evolved into infantile spasms. However, it is the second case of EIMFS with KCNQ2 mutation...
2018: Child Neurology Open
https://www.readbyqxmd.com/read/29680921/neurosurgical-treatment-of-gangliogliomas-in-children-and-adolescents-long-term-follow-up-of-a-single-institution-series-of-32-patients
#8
Tryggve Lundar, Bernt Johan Due-Tønnessen, Radek Fric, Arild Egge, Bård Krossnes, Paulina Due-Tønnessen, Einar Stensvold, Petter Brandal
OBJECT: The object of this study was to delineate long-term results of the surgical treatment of pediatric tumors classified as ganglioglioma or gangliocytoma. METHODS: A cohort of consecutive patients 19 years or younger who had undergone primary resection of CNS tumors during the years 1980-2016 at a single institution were reviewed in this retrospective study of surgical morbidity, mortality, and academic achievement and/or work participation. Gross motor function and activities of daily living were scored using the Barthel Index (BI)...
April 22, 2018: Acta Neurochirurgica
https://www.readbyqxmd.com/read/29656858/a-recurrent-de-novo-pacs2-heterozygous-missense-variant-causes-neonatal-onset-developmental-epileptic-encephalopathy-facial-dysmorphism-and-cerebellar-dysgenesis
#9
Heather E Olson, Nolwenn Jean-Marçais, Edward Yang, Delphine Heron, Katrina Tatton-Brown, Paul A van der Zwaag, Emilia K Bijlsma, Bryan L Krock, E Backer, Erik-Jan Kamsteeg, Margje Sinnema, Margot R F Reijnders, David Bearden, Amber Begtrup, Aida Telegrafi, Roelineke J Lunsing, Lydie Burglen, Gaetan Lesca, Megan T Cho, Lacey A Smith, Beth R Sheidley, Christelle Moufawad El Achkar, Phillip L Pearl, Annapurna Poduri, Cara M Skraban, Jennifer Tarpinian, Addie I Nesbitt, Dietje E Fransen van de Putte, Claudia A L Ruivenkamp, Patrick Rump, Nicolas Chatron, Isabelle Sabatier, Julitta De Bellescize, Laurent Guibaud, David A Sweetser, Jessica L Waxler, Klaas J Wierenga, Jean Donadieu, Vinodh Narayanan, Keri M Ramsey, Caroline Nava, Jean-Baptiste Rivière, Antonio Vitobello, Frédéric Tran Mau-Them, Christophe Philippe, Ange-Line Bruel, Yannis Duffourd, Laurel Thomas, Stefan H Lelieveld, Janneke Schuurs-Hoeijmakers, Han G Brunner, Boris Keren, Julien Thevenon, Laurence Faivre, Gary Thomas, Christel Thauvin-Robinet
Developmental and epileptic encephalopathies (DEEs) represent a large clinical and genetic heterogeneous group of neurodevelopmental diseases. The identification of pathogenic genetic variants in DEEs remains crucial for deciphering this complex group and for accurately caring for affected individuals (clinical diagnosis, genetic counseling, impacting medical, precision therapy, clinical trials, etc.). Whole-exome sequencing and intensive data sharing identified a recurrent de novo PACS2 heterozygous missense variant in 14 unrelated individuals...
May 3, 2018: American Journal of Human Genetics
https://www.readbyqxmd.com/read/29645068/-frequency-semiology-and-prognosis-of-benign-infantile-epilepsy
#10
J Ramos-Lizana, G Martinez-Espinosa, M I Rodriguez-Lucenilla, J Aguirre-Rodriguez, P Aguilera-Lopez
INTRODUCTION: Benign infantile epilepsy is an epileptic syndrome of infancy. Until now, only a small number of case-series have been published. AIM: To study the frequency, semiology and prognosis of benign infantile epilepsy. PATIENTS AND METHODS: The 827 patients with one or more epileptic seizures seen at our hospital between 1 June 1994 and 1 March 2011 were included and prospectively followed. A diagnosis of benign infantile epilepsy was made in patients that fulfilled the following criteria at six month of evolution: one or more focal and/or generalised seizures, onset before 24 months, no neurological deficit and normal neuroimaging and interictal EEG...
April 16, 2018: Revista de Neurologia
https://www.readbyqxmd.com/read/29625812/scn2a-mutation-in-an-infant-presenting-with-migrating-focal-seizures-and-infantile-spasm-responsive-to-a-ketogenic-diet
#11
Da-Jyun Su, Jyh-Feng Lu, Li-Ju Lin, Jao-Shwann Liang, Kun-Long Hung
SCN2A mutations have been identified in various encephalopathy phenotypes, ranging from benign familial neonatal-infantile seizure (BFNIS) to more severe forms of epileptic encephalopathy such as Ohtahara syndrome or epilepsy of infancy with migrating focal seizure (EIMFS). Thus far, no particularly effective treatment is available for severe epileptic encephalopathy caused by SCN2A mutations in children. We present the case of a boy who developed seizures on the third day of life and received a diagnosis of EIMFS based on his clinical presentations and electroencephalography reports...
April 3, 2018: Brain & Development
https://www.readbyqxmd.com/read/29619234/infantile-spasms-related-to-a-5q31-2-q31-3-microdeletion-including-pura
#12
Keiko Shimojima, Nobuhiko Okamoto, Kayo Ohmura, Hiroaki Nagase, Toshiyuki Yamamoto
Recently, haploinsufficiency of PURA has been identified as an essential cause of 5q31.3 microdeletion syndrome, which is characterized by severe psychomotor developmental delay, epilepsy, distinctive features, and delayed myelination. A new 5q31.2-q31.3 microdeletion that included PURA was identified in a patient with infantile spasms. Approximately 50% of patients with PURA -related neurodevelopmental disorders exhibited epilepsy regardless of whether they harbor a 5q31.3 deletion or PURA mutation. Patients with the 5q31...
2018: Human Genome Variation
https://www.readbyqxmd.com/read/29614566/-spectrum-of-mutations-in-benign-familial-neonatal-infantile-epilepsy
#13
Q Zeng, Y H Zhang, X L Yang, L H Pu, J Zhang, A J Liu, Z X Yang, X Y Liu, X R Wu
Objective: To investigate the spectrum of mutations in families with benign familial neonatal-infantile epilepsy (BFNIE) . Methods: Clinical data and peripheral blood DNA samples of all BFNIE probands and their family members were collected from Peking University First Hospital between December 2012 and April 2016. Clinical phenotypes of affected members were analyzed. Genomic DNA was extracted from peripheral blood samples with standard protoco1. Mutations in PRRT2 were screened using Sanger sequencing. For families that PRRT2 mutations were not detected by Sanger sequencing, candidate gene mutations were further screened by next-generation sequencing for epilepsy...
April 2, 2018: Zhonghua Er Ke za Zhi. Chinese Journal of Pediatrics
https://www.readbyqxmd.com/read/29588952/gene-panel-analysis-for-nonsyndromic-cryptogenic-neonatal-infantile-epileptic-encephalopathy
#14
Cheuk-Wing Fung, Anna Ka-Yee Kwong, Virginia Chun-Nei Wong
Objective: Epileptic encephalopathy (EE) is a heterogeneous condition associated with deteriorations of cognitive, sensory and/or motor functions as a consequence of epileptic activity. The phenomenon is the most common and severe in infancy and early childhood. Genetic-based diagnosis in EE patients is challenging owing to genetic and phenotypic heterogeneity of numerous monogenic disorders and the fact that thousands of genes are involved in neurodevelopment. Therefore, high-throughput next-generation sequencing (NGS) was used to investigate the genetic causes of non-syndromic cryptogenic neonatal/infantile EE (NIEE)...
June 2017: Epilepsia Open
https://www.readbyqxmd.com/read/29582466/unique-cell-tropism-of-hhv-6b-in-an-infantile-autopsy-case-of-primary-hhv-6b-encephalitis
#15
Hiroaki Miyahara, Kouki Miyakawa, Haruto Nishida, Shinji Yano, Tomoko Sonoda, So-Ichi Suenobu, Tatsuro Izumi, Tsutomu Daa, Kenji Ihara
Human herpes virus 6 (HHV-6) is known to cause primary encephalitis in the frontal lobes/cerebral hemisphere or reactivated encephalitis in the hippocampus, but the pathogenesis remains unclear. HHV-6B has also been detected in hippocampal samples in patients with mesial temporal lobe epilepsy. A 1 year and 3 months old female, who had been clinically diagnosed with exanthema subitum and febrile convulsion, was found dead on the third day after onset. Macroscopic findings showed massive brain edema. Microscopic examination revealed gemistocytic astrocytes and ballooned oligodendrocytes in the frontal white matter, along with neuronal cell death with microglial infiltration in the frontal cortex...
March 26, 2018: Neuropathology: Official Journal of the Japanese Society of Neuropathology
https://www.readbyqxmd.com/read/29572195/biallelic-unc80-mutations-caused-infantile-hypotonia-with-psychomotor-retardation-and-characteristic-facies-2-in-two-chinese-patients-with-variable-phenotypes
#16
Yunjuan He, Xing Ji, Hui Yan, Xiantao Ye, Yu Liu, Wei Wei, Bing Xiao, Yu Sun
Biallelic UNC80 mutations cause infantile hypotonia with psychomotor retardation and characteristic facies 2 (IHPRF2), which is characterized by hypotonia, developmental delay (DD)/intellectual disability (ID), intrauterine growth retardation, postnatal growth retardation and characteristic facial features. We report two unrelated Chinese patients with compound heterozygous UNC80 mutations inherited from their parents, as identified by whole-exome sequencing (WES). Mutations c.3719G>A (p.W1240*)/c.4926_4937del (p...
March 20, 2018: Gene
https://www.readbyqxmd.com/read/29557512/-infantile-convulsions-in-the-early-nineteenth-century-abnormal-brain-blood-flow-and-leeches-teething-and-gums-scarification-and-food-and-purgatives-the-historical-contribution-of-john-clarke-1760-1815
#17
EDITORIAL
Francesco Brigo, Simona Lattanzi, Eugen Trinka, Raffaele Nardone, Nicola Luigi Bragazzi, Martino Ruggieri, Ignazio Vecchio, Mariano Martini
In this article, we discuss on the role of the British physician and midwifery practitioner John Clarke (1760-1815) in the characterisation of the various types of seizures and epilepsy and related phenomena ('convulsions') occurring in children. In his unfinished work Commentaries on Some of the Most Important Diseases of Children (1815), Clarke discussed the pathophysiology of convulsions and was the first to describe, 12 years before the French neurologist Louis Francois Bravais (1801-1843) and more than 30 years before the Irish-born physician Robert Bentley Todd (1809-1860), the postictal paresis...
March 20, 2018: Child's Nervous System: ChNS: Official Journal of the International Society for Pediatric Neurosurgery
https://www.readbyqxmd.com/read/29547159/addition-of-pyridoxine-to-prednisolone-in-the-treatment-of-infantile-spasms-a-pilot-randomized-controlled-trial
#18
Vedavathi Kunnanayaka, Puneet Jain, Suvasini Sharma, Anju Seth, Satinder Aneja
Background: West syndrome is a catastrophic epilepsy syndrome characterized by infantile spasms, hypsarrhythmia, and developmental arrest or regression. Aim: The aim of this study was to explore the role of pyridoxine in the management of infantile spasms. Setting and Design: This was a pilot, randomized, open-label trial conducted at a tertiary level hospital from November 2012 to March 2014. Materials and Methods: Children aged 3 months to 3 years presenting with infantile spasms in clusters (at least 1 cluster/day) with hypsarrhythmia or its variants on electroencephalogram (EEG) were enrolled...
March 2018: Neurology India
https://www.readbyqxmd.com/read/29544889/a-novel-stxbp1-mutation-causes-typical-rett-syndrome-in-a-japanese-girl
#19
Kotaro Yuge, Kazuhiro Iwama, Chihiro Yonee, Mayumi Matsufuji, Nozomi Sano, Tomoko Saikusa, Yukako Yae, Yushiro Yamashita, Takeshi Mizuguchi, Naomichi Matsumoto, Toyojiro Matsuishi
Rett syndrome (RTT) is a neurodevelopmental disorder mostly caused by mutations in Methyl-CpG-binding protein 2 (MECP2); however, mutations in various other genes may lead to RTT-like phenotypes. Here, we report the first case of a Japanese girl with RTT caused by a novel syntaxin-binding protein 1 (STXBP1) frameshift mutation (c.60delG, p.Lys21Argfs*16). She showed epilepsy at one year of age, regression of acquired psychomotor abilities thereafter, and exhibited stereotypic hand and limb movements at 3 years of age...
March 12, 2018: Brain & Development
https://www.readbyqxmd.com/read/29538625/protein-instability-haploinsufficiency-and-cortical-hyper-excitability-underlie-stxbp1-encephalopathy
#20
Jovana Kovacevic, Gregoire Maroteaux, Desiree Schut, Maarten Loos, Mohit Dubey, Julika Pitsch, Esther Remmelink, Bastijn Koopmans, James Crowley, L Niels Cornelisse, Patrick F Sullivan, Susanne Schoch, Ruud F Toonen, Oliver Stiedl, Matthijs Verhage
De novo heterozygous mutations in STXBP1/Munc18-1 cause early infantile epileptic encephalopathies (EIEE4, OMIM #612164) characterized by infantile epilepsy, developmental delay, intellectual disability, and can include autistic features. We characterized the cellular deficits for an allelic series of seven STXBP1 mutations and developed four mouse models that recapitulate the abnormal EEG activity and cognitive aspects of human STXBP1-encephalopathy. Disease-causing STXBP1 variants supported synaptic transmission to a variable extent on a null background, but had no effect when overexpressed on a heterozygous background...
March 12, 2018: Brain: a Journal of Neurology
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