612 results match your criteria Benign Neonatal Convulsions


Ketogenic diet as a successful early treatment modality for SCN2A mutation.

Brain Dev 2018 Nov 8. Epub 2018 Nov 8.

Department of Nutrition and Dietetics, Bilgi University School of Medicine, Turkey.

SCN2A mutations have been described in a very broad spectrum of clinical phenotypes including benign (familial) neonatal/infantile seizures and early infantile epileptic encephalopathies (EIEE) as Ohtahara syndrome (OS), Dravet syndrome (DS), epilepsy of infancy with migrating focal seizures and West syndrome (WS). Treatment modalities for epilepsy caused by SCN2A mutations mainly consist of sodium channel blockers but ketogenic diet (KD) is also considered as an option of treatment for intractible seizures caused by SCN2A mutations. Because of the wide nature of the heterogeneity of mutations related to SCN2A gene, the clinical phenotypes vary in severity and treatment response to KD has been reported to be controversial. Read More

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https://linkinghub.elsevier.com/retrieve/pii/S03877604183036
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http://dx.doi.org/10.1016/j.braindev.2018.10.015DOI Listing
November 2018
4 Reads

HCN1 mutation spectrum: from neonatal epileptic encephalopathy to benign generalized epilepsy and beyond.

Brain 2018 Nov;141(11):3160-3178

EuroEPINOMICS RES Consortium.

Hyperpolarization-activated cyclic nucleotide-gated (HCN) channels control neuronal excitability and their dysfunction has been linked to epileptogenesis but few individuals with neurological disorders related to variants altering HCN channels have been reported so far. In 2014, we described five individuals with epileptic encephalopathy due to de novo HCN1 variants. To delineate HCN1-related disorders and investigate genotype-phenotype correlations further, we assembled a cohort of 33 unpublished patients with novel pathogenic or likely pathogenic variants: 19 probands carrying 14 different de novo mutations and four families with dominantly inherited variants segregating with epilepsy in 14 individuals, but not penetrant in six additional individuals. Read More

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http://fdslive.oup.com/www.oup.com/pdf/production_in_progres
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http://dx.doi.org/10.1093/brain/awy263DOI Listing
November 2018
11 Reads

[Non-epileptic paroxysmal disorder in neonates].

Medicina (B Aires) 2018 ;78 Suppl 2:42-46

Instituto Materno Perinatal de Lima, Perú.

Non-epileptic paroxysmal disorders are frequent events in the neonate, generally transient. However, due to their intensity they can be confused as true epileptic seizures. The objective of this review is to update the concepts in relation to tremors, neonatal benign sleep myoclonus (MNBS) and hyperekplexia. Read More

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January 2018
3 Reads

Relationship of electrophysiological dysfunction and clinical severity in SCN2A-related epilepsies.

Hum Mutat 2018 Dec 13;39(12):1942-1956. Epub 2018 Sep 13.

Department of Neurology and Epileptology, Hertie Institute for Clinical Brain Research, University of Tuebingen, Tuebingen, Germany.

Variants in the SCN2A gene cause a broad spectrum of epilepsy syndromes of variable severity including benign neonatal-infantile epilepsy (BFNIE), developmental and epileptic encephalopathies (DEE), and other neuropsychiatric disorders. Here, we studied three newly identified variants, which caused distinct phenotypes observed in nine affected individuals of three families, including BFNIE, and DEE with intractable neonatal seizures. Whole cell patch-clamp recordings of transfected tsA201 cells disclosed an increased current density and an increased subthreshold sodium inward current upon an action potential stimulus (p. Read More

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http://dx.doi.org/10.1002/humu.23619DOI Listing
December 2018
11 Reads

Early-life hyperthermic seizures upregulate adenosine A receptors in the cortex and promote depressive-like behavior in adult rats.

Epilepsy Behav 2018 Sep 13;86:173-178. Epub 2018 Jul 13.

Departamento de Química Inorgánica, Orgánica y Bioquímica, Facultad de Ciencias y Tecnologías Químicas/Facultad de Medicina de Ciudad Real, Centro Regional de Investigaciones Biomédicas, Universidad de Castilla-La Mancha, Avenida Camilo José Cela, 10, 13071 Ciudad Real, Spain.

Febrile seizures (FS) represent one of the most frequent convulsive disorders in children which can be classified into simple and prolonged depending on the duration. Although simple FS are generally considered as benign, there is controversy about the outcome of prolonged FS. Here, we have used an animal model of prolonged FS to investigate persistent neurochemical and behavioral alterations in adult rats. Read More

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http://dx.doi.org/10.1016/j.yebeh.2018.06.048DOI Listing
September 2018

[Phenotype study of SCN2A gene related epilepsy].

Zhonghua Er Ke Za Zhi 2018 Jul;56(7):518-523

Department of Pediatrics, Peking University First Hospital, Beijing 100034, China.

To summarize the phenotype of epileptic children with SCN2A mutations. Epileptic patients who were treated in the Pediatric Department of Peking University First Hospital from September 2006 to October 2017 and detected with SCN2A mutations by targeted next-generation sequencing were enrolled. Clinical manifestations of all patients were analyzed retrospectively. Read More

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http://dx.doi.org/10.3760/cma.j.issn.0578-1310.2018.07.009DOI Listing
July 2018
5 Reads

Dynamic action potential clamp predicts functional separation in mild familial and severe de novo forms of epilepsy.

Proc Natl Acad Sci U S A 2018 06 29;115(24):E5516-E5525. Epub 2018 May 29.

Ion Channels and Disease Group, The Florey Institute of Neuroscience and Mental Health, University of Melbourne, Parkville, VIC 3052, Australia;

De novo variants in developmental and epileptic encephalopathy (DEE) show distinctive genotype-phenotype correlations. The two most recurrent variants in DEE, R1882Q and R853Q, are associated with different ages and seizure types at onset. R1882Q presents on day 1 of life with focal seizures, while infantile spasms is the dominant seizure type seen in R853Q cases, presenting at a median age of 8 months. Read More

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http://dx.doi.org/10.1073/pnas.1800077115DOI Listing
June 2018
2 Reads

Neonatal Alexander Disease: Novel GFAP Mutation and Comparison to Previously Published Cases.

Neuropediatrics 2018 Aug 25;49(4):256-261. Epub 2018 May 25.

PEDEGO Research Unit, University of Oulu, Finland.

Alexander disease (AxD) is a genetic leukodystrophy caused by mutations leading to astrocyte dysfunction. Neonatal AxD is a rare phenotype with onset in the first month of life. The proband, belonging to a large pedigree with dominantly inherited benign familial neonatal epilepsy (BFNE), had a phenotype distinct from the rest of the family, with hypotonia and macrocephaly in addition to drug-resistant neonatal seizures. Read More

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http://dx.doi.org/10.1055/s-0038-1649500DOI Listing
August 2018
3 Reads

Myotonia permanens with Nav1.4-G1306E displays varied phenotypes during course of life.

Acta Myol 2017 Sep 1;36(3):125-134. Epub 2017 Sep 1.

Department of Neurosurgery, Ulm University, Ulm, Germany.

Introduction: Myotonia permanens due to Nav1.4-G1306E is a rare sodium channelopathy with potentially life-threatening respiratory complications. Our goal was to study phenotypic variability throughout life. Read More

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http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5953224PMC
September 2017
3 Reads

Benign and severe early-life seizures: a round in the first year of life.

Ital J Pediatr 2018 May 15;44(1):54. Epub 2018 May 15.

University-Hospital 'Policlinico-Vittorio Emanuele, University of Catania, Catania, Italy.

Background: 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. Read More

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http://dx.doi.org/10.1186/s13052-018-0491-zDOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5952424PMC

SCN2A mutation in an infant presenting with migrating focal seizures and infantile spasm responsive to a ketogenic diet.

Brain Dev 2018 Sep 4;40(8):724-727. Epub 2018 Apr 4.

Department of Pediatrics, Cathay General Hospital, Taipei, Taiwan; School of Medicine, Fu Jen Catholic University, New Taipei City, Taiwan; Department of Pediatrics, Fu Jen Catholic University Hospital, New Taipei City, Taiwan. Electronic address:

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. Read More

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https://linkinghub.elsevier.com/retrieve/pii/S03877604183009
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http://dx.doi.org/10.1016/j.braindev.2018.03.005DOI Listing
September 2018
5 Reads

[Spectrum of mutations in benign familial neonatal-infantile epilepsy].

Zhonghua Er Ke Za Zhi 2018 Apr;56(4):267-273

Department of Pediatrics, Peking University First Hospital, Beijing 100034, China.

To investigate the spectrum of mutations in families with benign familial neonatal-infantile epilepsy (BFNIE) . 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. Read More

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http://dx.doi.org/10.3760/cma.j.issn.0578-1310.2018.04.006DOI Listing

Epilepsy Syndromes in Childhood.

Authors:
Phillip L Pearl

Continuum (Minneap Minn) 2018 02;24(1, Child Neurology):186-209

Purpose Of Review: Epilepsy syndromes are an important clinical construct in pediatric epilepsy, as they encompass recognizable patterns seen in patients with epilepsies, whether of the more benign variety or associated with encephalopathy.

Recent Findings: Syndromes may be organized by age of onset: neonatal, infantile, childhood, or adolescent. The assignment of a syndrome has specific implications for diagnosis, management, and prognostication. Read More

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http://dx.doi.org/10.1212/CON.0000000000000568DOI Listing
February 2018
4 Reads

Neonatal epilepsy genetics.

Semin Fetal Neonatal Med 2018 06 31;23(3):197-203. Epub 2018 Jan 31.

Epilepsy Genetics Program, Department of Neurology, Division of Epilepsy, Boston Children's Hospital, Boston, MA, USA. Electronic address:

Neonatal epilepsy genetics is a rapidly expanding field with recent technological advances in genomics leading to an expanding list of genetic disorders associated with neonatal-onset epilepsy. The genetic causes of neonatal epilepsy can be grouped into the following categories: (i) malformations of cortical development, (ii) genetic-metabolic, (iii) genetic-vascular, (iv) genetic-syndromic, and (v) genetic-cellular. Clinically, epilepsy in the neonate shows phenotypic overlap with pathogenic variants in unrelated genes causing similar clinical presentation (locus heterogeneity) and variants in the same gene leading to a wide clinical spectrum ranging from benign familial neonatal seizures to more severe epileptic encephalopathies (variable expressivity). Read More

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http://dx.doi.org/10.1016/j.siny.2018.01.003DOI Listing

Kv7.3 Compound Heterozygous Variants in Early Onset Encephalopathy Reveal Additive Contribution of C-Terminal Residues to PIP-Dependent K Channel Gating.

Mol Neurobiol 2018 Aug 30;55(8):7009-7024. Epub 2018 Jan 30.

Department of Medicine and Health Science, University of Molise, Campobasso, Italy.

Over one hundred mutations in the Kv7.2 (KCNQ2) gene encoding for phosphatidylinositol 4,5-bisphosphate (PIP)-sensitive voltage-gated K channel subunits have been identified in early-onset epilepsies with wide phenotypic variability. By contrast, only few mutations in the closely related Kv7. Read More

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http://dx.doi.org/10.1007/s12035-018-0883-5DOI Listing
August 2018
7 Reads

Genetic analysis of benign familial epilepsies in the first year of life in a Chinese cohort.

J Hum Genet 2018 Jan 13;63(1):9-18. Epub 2017 Nov 13.

Department of Pediatrics, Peking University First Hospital, Beijing, China.

Benign familial epilepsies that present themselves in the first year of life include benign familial neonatal epilepsy (BFNE), benign familial neonatal-infantile epilepsy (BFNIE) and benign familial infantile epilepsy (BFIE). We used Sanger sequencing and targeted next-generation sequencing to detect gene mutations in a Chinese cohort of patients with these three disorders. A total of 79 families were collected, including 4 BFNE, 7 BFNIE, and 68 BFIE. Read More

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http://dx.doi.org/10.1038/s10038-017-0359-xDOI Listing
January 2018
5 Reads

[Benign infantile convulsions associated with mild gastroenteritis: a clinical analysis and follow-up study].

Zhongguo Dang Dai Er Ke Za Zhi 2017 Nov;19(11):1191-1195

Department of Pediatrics, Second Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang 325000, China.

Objective: To study the clinical features and prognosis of benign infantile convulsions associated with mild gastroenteritis (BICE).

Methods: A retrospective analysis was performed for the clinical data of 436 children with BICE, and among these children, 206 were followed up for 1.5 to 7 years. Read More

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November 2017
1 Read

West syndrome in three patients with brain injury and a benign course.

Epilepsy Behav Case Rep 2017 15;8:35-39. Epub 2017 Mar 15.

IRCCS, Institute of Neurological Sciences of Bologna, Child Neurology Unit, via Altura 3, Bologna, Italy.

Infants with West Syndrome and underlying structural pathology typically experience persistent symptomatic focal seizures and intellectual disability. We performed a retrospective case review of 84 patients with West Syndrome evaluated at one institution between 1990 and 2013. From this group we identified three patients with West syndrome and congenital hemiplegia who later developed genetic epilepsy features and had normal intellectual development. Read More

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http://dx.doi.org/10.1016/j.ebcr.2017.03.002DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5542381PMC
March 2017
9 Reads

Profile of neonatal epilepsies: Characteristics of a prospective US cohort.

Neurology 2017 Aug 21;89(9):893-899. Epub 2017 Jul 21.

From the Department of Pediatrics & Communicable Diseases (R.A.S.), University of Michigan, Ann Arbor; Departments of Neurology & Pediatrics (C.J.W.), Stanford University, Palo Alto, CA; Department of Neurology (T.N.T., N.W.), Children's National Health System, George Washington University School of Medicine, Washington, DC; Departments of Neurology and Pediatrics (H.C.G., M.R.C.), UCSF Benioff Children's Hospital, and Department of Epidemiology & Biostatistics (H.C.G.), University of California San Francisco; Department of Neurology (C.J.C.), Massachusetts General Hospital, Boston; Departments of Neurology and Pediatrics (S.L.M., N.S.A.), The Children's Hospital of Philadelphia and The Perelman School of Medicine at the University of Pennsylvania; and Department of Neurology (J.S.S.), Boston Children's Hospital, MA.

Objective: Although individual neonatal epilepsy syndromes are rare, as a group they represent a sizable subgroup of neonatal seizure etiologies. We evaluated the profile of neonatal epilepsies in a prospective cohort of newborns with seizures.

Methods: Consecutive newborns with seizures were enrolled in the Neonatal Seizure Registry (an association of 7 US children's hospitals). Read More

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http://dx.doi.org/10.1212/WNL.0000000000004284DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5577964PMC
August 2017
5 Reads

A patient with early myoclonic encephalopathy (EME) with a de novo KCNQ2 mutation.

Brain Dev 2018 Jan 4;40(1):69-73. Epub 2017 Jul 4.

Department of Pediatrics, Jichi Medical University, Japan. Electronic address:

Background: The potassium voltage-gated channel subfamily Q member 2 (KCNQ2) gene has been reported to be associated with various types of epilepsy, including benign familial neonatal seizure (BFNS), early infantile epileptic encephalopathy (EIEE), and unclassified early onset encephalopathies. We herein report a patient with early myoclonic encephalopathy (EME) caused by a KCNQ2 mutation.

Case Report: A male infant started to exhibit erratic myoclonus several days after birth and apnea attacks lasting for seconds with desaturation. Read More

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http://dx.doi.org/10.1016/j.braindev.2017.06.004DOI Listing
January 2018
5 Reads

Rare variants of small effect size in neuronal excitability genes influence clinical outcome in Japanese cases of SCN1A truncation-positive Dravet syndrome.

PLoS One 2017 7;12(7):e0180485. Epub 2017 Jul 7.

Department of Pediatrics, School of Medicine and Central Research Institute for the Molecular Pathogeneses of Epilepsy, Fukuoka University, Fukuoka, Japan.

Dravet syndrome (DS) is a rare, devastating form of childhood epilepsy that is often associated with mutations in the voltage-gated sodium channel gene, SCN1A. There is considerable variability in expressivity within families, as well as among individuals carrying the same primary mutation, suggesting that clinical outcome is modulated by variants at other genes. To identify modifier gene variants that contribute to clinical outcome, we sequenced the exomes of 22 individuals at both ends of a phenotype distribution (i. Read More

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http://journals.plos.org/plosone/article?id=10.1371/journal.pone.0180485PLOS
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5501540PMC
October 2017
24 Reads

Variable expressivity of a likely pathogenic variant in KCNQ2 in a three-generation pedigree presenting with intellectual disability with childhood onset seizures.

Am J Med Genet A 2017 Aug 11;173(8):2226-2230. Epub 2017 Jun 11.

Division of Clinical and Metabolic Genetics, Department of Pediatrics, University of Toronto, The Hospital for Sick Children, Toronto, Ontario, Canada.

KCNQ2 has been reported as a frequent cause of autosomal dominant benign familial neonatal seizures. De novo likely pathogenic variants in KCNQ2 have been described in neonatal or early infantile onset epileptic encephalopathy patients. Here, we report a three-generation family with six affected patients with a novel likely pathogenic variant (c. Read More

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http://dx.doi.org/10.1002/ajmg.a.38281DOI Listing
August 2017
9 Reads

Benign infantile seizures followed by autistic regression in a boy with 16p11.2 deletion.

Epileptic Disord 2017 Jun;19(2):222-225

Department of Developmental Neuroscience, IRCCS Stella Maris Foundation, Pisa, Italy.

Benign infantile seizures (BIS) are usually a self-limiting condition, which may be associated with heterozygous mutations in the PRRT2 gene at chromosome 16p11.2. Here, we report a boy with a deletion in 16p11. Read More

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http://dx.doi.org/10.1684/epd.2017.0909DOI Listing
June 2017
9 Reads

Association of a synonymous SCN1B variant affecting splicing efficiency with Benign Familial Infantile Epilepsy (BFIE).

Eur J Paediatr Neurol 2017 Sep 13;21(5):773-782. Epub 2017 May 13.

Department of Molecular Biology and Genetics, Bogazici University, Istanbul, Turkey. Electronic address:

Benign Familial Infantile Epilepsy (BFIE) is clinically characterized by clusters of brief partial seizures progressing to secondarily generalized seizures with onset at the age of 3-7 months and with favorable outcome. PRRT2 mutations are the most common cause of BFIE, and found in about 80% of BFIE families. In this study, we analyzed a large multiplex BFIE family by linkage and whole exome sequencing (WES) analyses. Read More

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https://linkinghub.elsevier.com/retrieve/pii/S10903798173161
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http://dx.doi.org/10.1016/j.ejpn.2017.05.001DOI Listing
September 2017
11 Reads

Two Novel Mutations in 2 Families With Benign Familial Neonatal Convulsions.

Child Neurol Open 2017 Jan-Dec;4:2329048X17691396. Epub 2017 Feb 23.

Division of Pediatric Neurology, Montreal Children's Hospital, McGill University Health Centre (MUHC), Montréal, Quebec City, Canada.

Benign familial neonatal convulsion is a rare autosomal dominant inherited epilepsy syndrome characterized by unprovoked seizures in the first few days of life, normal psychomotor development, and a positive intergenerational family history of neonatal seizures. Over 90% of the affected individuals have inherited causal mutations in , which encodes for the potassium voltage-gated channel subfamily Q, member 2. Mutations in are also associated with a severe neonatal encephalopathy phenotype associated with poor seizure control and neurodevelopmental deficits. Read More

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http://dx.doi.org/10.1177/2329048X17691396DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5417349PMC
February 2017
20 Reads

Core outcome sets in women's and newborn health: a systematic review.

BJOG 2017 Sep;124(10):1481-1489

Nuffield Department of Primary Care Health Sciences, University of Oxford, Oxford, UK.

Background: Variation in outcome collection and reporting is a serious hindrance to progress in our specialty; therefore, over 80 journals have come together to support the development, dissemination, and implementation of core outcome sets.

Objective: This study systematically reviewed and characterised registered, progressing, or completed core outcome sets relevant to women's and newborn health.

Search Strategy: Systematic search using the Core Outcome Measures in Effectiveness Trial initiative and the Core Outcomes in Women's and Newborn Health initiative databases. Read More

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http://dx.doi.org/10.1111/1471-0528.14694DOI Listing
September 2017
16 Reads

Endoplasmic reticulum retention of KCNQ2 potassium channel mutants following temperature elevation.

Biomed Mater Eng 2017 ;28(s1):S243-S253

Hubei Provincial Key Laboratory of Developmentally Originated Disease, Wuhan University, Wuhan, China.

Background: KCNQ2 plays a key role in the regulation of neuronal excitability. The R214W and Y284C mutants of KCNQ2 channels, which are associated with BFNC, can decrease channel function to cause neuronal hyperexcitability and promote seizures. Previous studies revealed that elevated temperature caused up-regulation of KCNQ2 expression. Read More

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http://dx.doi.org/10.3233/BME-171647DOI Listing
July 2017
3 Reads

Opposing Effects on Na1.2 Function Underlie Differences Between SCN2A Variants Observed in Individuals With Autism Spectrum Disorder or Infantile Seizures.

Biol Psychiatry 2017 08 27;82(3):224-232. Epub 2017 Jan 27.

Center for Integrative Neuroscience, Kavli Institute for Fundamental Neuroscience, Department of Neurology, San Francisco, San Francisco; UCSF Weill Institute for Neurosciences, University of California, San Francisco, San Francisco; Department of Chemistry, University of Puerto Rico, Río Piedras Campus, San Juan, Puerto Rico. Electronic address:

Background: Variants in the SCN2A gene that disrupt the encoded neuronal sodium channel Na1.2 are important risk factors for autism spectrum disorder (ASD), developmental delay, and infantile seizures. Variants observed in infantile seizures are predominantly missense, leading to a gain of function and increased neuronal excitability. Read More

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http://dx.doi.org/10.1016/j.biopsych.2017.01.009DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5796785PMC
August 2017
1 Read

Corticokinematic coherence as a new marker for somatosensory afference in newborns.

Clin Neurophysiol 2017 Apr 29;128(4):647-655. Epub 2017 Jan 29.

Department of Neuroscience and Biomedical Engineering, Aalto University, PO Box 12200, 00076 Aalto, Espoo, Finland; Department of Art, Aalto University, PO Box 31000, 00076 Aalto, Helsinki, Finland. Electronic address:

Objective: Somatosensory evoked potentials have high prognostic value in neonatal intensive care, but their recording from infants is challenging. Here, we studied the possibility to elicit cortical responses in newborns by simple passive hand movements.

Methods: We examined 13 newborns (postnatal age 1-46days) during clinically indicated 19-channel electroencephalography (EEG) recordings in the neonatal intensive care unit; EEG indications included birth asphyxia and suspected epileptic seizures. Read More

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http://dx.doi.org/10.1016/j.clinph.2017.01.006DOI Listing
April 2017
7 Reads

Exploring temporal information in neonatal seizures using a dynamic time warping based SVM kernel.

Comput Biol Med 2017 03 26;82:100-110. Epub 2017 Jan 26.

Irish Centre for Fetal and Neonatal Translational Research (INFANT), Ireland; Department of Electrical and Electronic Engineering, University College Cork, Ireland.

Seizure events in newborns change in frequency, morphology, and propagation. This contextual information is explored at the classifier level in the proposed patient-independent neonatal seizure detection system. The system is based on the combination of a static and a sequential SVM classifier. Read More

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http://dx.doi.org/10.1016/j.compbiomed.2017.01.017DOI Listing
March 2017
4 Reads

SCN2A p.Ala263Val Variant a Phenotype of Neonatal Seizures Followed by Paroxysmal Ataxia in Toddlers.

Pediatr Neurol 2017 Feb 8;67:111-112. Epub 2016 Dec 8.

Department of Neurology and Clinical Neurophysiology, Temple Street Children's University Hospital, Dublin 1, Ireland; Academic Centre on Rare Diseases, School of Medicine and Medical Science, University College Dublin, Belfield, Dublin 4, Ireland.

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http://dx.doi.org/10.1016/j.pediatrneurol.2016.11.008DOI Listing
February 2017
2 Reads

Childhood epilepsies: What should a pediatrician know?

Authors:
Fahad A Bashiri

Neurosciences (Riyadh) 2017 Jan;22(1):14-19

Department of Pediatrics, College of Medicine, King Saud University Medical City, King Saud University, Riyadh, Kingdom of Saudi Arabia. E-mail:

Seizures in children are among the most common neurological disorders. A pediatrician should know how to approach a child who presents with a seizure. This review will focus on points that are important in the evaluation of children who have experienced seizures. Read More

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http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5726831PMC
http://dx.doi.org/10.17712/nsj.2017.1.20160244DOI Listing
January 2017
7 Reads

A KCNQ2 E515D mutation associated with benign familial neonatal seizures and continuous spike and waves during slow-wave sleep syndrome in Taiwan.

J Formos Med Assoc 2017 Sep 27;116(9):711-719. Epub 2016 Dec 27.

Institute of Medicine, School of Medicine, Chung Shan Medical University, Taichung, Taiwan; Genetics Laboratory and Department of Biomedical Sciences, Chung Shan Medical University, Taichung, Taiwan. Electronic address:

Background/purpose: Pediatric epilepsy caused by a KCNQ2 gene mutation usually manifests as benign familial neonatal seizures (BFNS) during the 1 week of life. However, the exact mechanism, phenotype, and genotype of the KCNQ2 mutation are unclear.

Methods: We studied the KCNQ2 genotype from 75 nonconsanguineous patients with childhood epilepsy without an identified cause (age range: from 2 days to 18 years) and from 55 healthy adult controls without epilepsy. Read More

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https://linkinghub.elsevier.com/retrieve/pii/S09296646163042
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http://dx.doi.org/10.1016/j.jfma.2016.11.009DOI Listing
September 2017
4 Reads

Early-onset epileptic encephalopathy caused by a reduced sensitivity of Kv7.2 potassium channels to phosphatidylinositol 4,5-bisphosphate.

Sci Rep 2016 12 1;6:38167. Epub 2016 Dec 1.

Department of Medicine and Health Sciences, University of Molise, Campobasso, Italy.

Kv7.2 and Kv7.3 subunits underlie the M-current, a neuronal K current characterized by an absolute functional requirement for phosphatidylinositol 4,5-bisphosphate (PIP). Read More

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http://dx.doi.org/10.1038/srep38167DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5131271PMC
December 2016
7 Reads

Rapid and safe response to low-dose carbamazepine in neonatal epilepsy.

Epilepsia 2016 12 26;57(12):2019-2030. Epub 2016 Nov 26.

Department of Neurology, University of California San Francisco, San Francisco, California, U.S.A.

Objective: To evaluate treatment responses in benign familial neonatal epilepsy (BFNE).

Methods: We recruited patients with BFNE through a multicenter international collaboration and reviewed electroclinical and genetic details, and treatment response. All patients were tested at minimum for mutations/deletions in the KCNQ2, KCNQ3, and SCN2A genes. Read More

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http://dx.doi.org/10.1111/epi.13596DOI Listing
December 2016
29 Reads

Infantile Epileptic Encephalopathy Associated With SCN2A Mutation Responsive to Oral Mexiletine.

Pediatr Neurol 2017 01 18;66:108-111. Epub 2016 Oct 18.

Department of Neurology, University of Minnesota, Minneapolis, Minnesota. Electronic address:

Background: Genetic alterations are significant causes of epilepsy syndromes; especially early-onset epileptic encephalopathies and voltage-gated sodium channelopathies are among the best described. Mutations in the SCN2A subunit of voltage-gated sodium channels have been associated with benign familial neonatal-infantile seizures, generalized epilepsy febrile seizures plus, and an early-onset infantile epileptic encephalopathy.

Method: We describe two infants with medically refractory seizures due to a de novo SCN2A mutation. Read More

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http://dx.doi.org/10.1016/j.pediatrneurol.2016.10.008DOI Listing
January 2017
12 Reads

Regulation of KCNQ/Kv7 family voltage-gated K channels by lipids.

Biochim Biophys Acta Biomembr 2017 Apr 4;1859(4):586-597. Epub 2016 Nov 4.

Department of Biochemistry, Vanderbilt University, Nashville, TN, USA; Center for Structural Biology, Vanderbilt University, Nashville, TN, USA; Department of Medicine, Vanderbilt University Medical Center, Nashville, TN, USA. Electronic address:

Many years of studies have established that lipids can impact membrane protein structure and function through bulk membrane effects, by direct but transient annular interactions with the bilayer-exposed surface of protein transmembrane domains, and by specific binding to protein sites. Here, we focus on how phosphatidylinositol 4,5-bisphosphate (PIP) and polyunsaturated fatty acids (PUFAs) impact ion channel function and how the structural details of the interactions of these lipids with ion channels are beginning to emerge. We focus on the Kv7 (KCNQ) subfamily of voltage-gated K channels, which are regulated by both PIP and PUFAs and play a variety of important roles in human health and disease. Read More

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http://dx.doi.org/10.1016/j.bbamem.2016.10.023DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5305565PMC
April 2017
7 Reads

Gene Panel Testing in Epileptic Encephalopathies and Familial Epilepsies.

Mol Syndromol 2016 Sep 20;7(4):210-219. Epub 2016 Aug 20.

Amplexa Genetics, Odense, Denmark.

In recent years, several genes have been causally associated with epilepsy. However, making a genetic diagnosis in a patient can still be difficult, since extensive phenotypic and genetic heterogeneity has been observed in many monogenic epilepsies. This study aimed to analyze the genetic basis of a wide spectrum of epilepsies with age of onset spanning from the neonatal period to adulthood. Read More

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http://dx.doi.org/10.1159/000448369DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5073625PMC
September 2016
16 Reads

Novel Mutation in a Large Family with Benign Familial Neonatal Epilepsy: A Rare Cause of Neonatal Seizures.

Mol Syndromol 2016 Sep 7;7(4):189-196. Epub 2016 Jul 7.

Department of Women and Child Health, Hospital for Children and Adolescents, Heidelberg, Germany; Division of Child Neurology and Inherited Metabolic Diseases, Department of General Pediatrics, Center for Pediatrics and Adolescent Medicine, University Hospital Heidelberg, Heidelberg, Germany.

Benign familial neonatal seizures (BFNS) present a rare familial epilepsy syndrome caused by genetic alterations in the voltage-gated potassium channels Kv7.2 and Kv7.3, encoded by and While most BFNS families carry alterations in , mutations in appear to be less common. Read More

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https://www.karger.com/Article/FullText/447461
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http://dx.doi.org/10.1159/000447461DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5073621PMC
September 2016
9 Reads

Phenotypic Variability from Benign Infantile Epilepsy to Ohtahara Syndrome Associated with a Novel Mutation in .

Mol Syndromol 2016 Sep 19;7(4):182-188. Epub 2016 Jul 19.

Department of Women and Child Health, Hospital for Children and Adolescents, Tübingen, Germany.

Mutations in have been associated with benign familial neonatal-infantile seizures (BFNIS) as well as infantile-onset epileptic encephalopathy, such as Ohtahara syndrome (OS). We describe a family with 3 affected individuals carrying the novel missense variant c.1147C>G, p. Read More

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http://dx.doi.org/10.1159/000447526DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5073623PMC
September 2016
14 Reads

In other RCNi journals.

Authors:

Nurs Child Young People 2016 Oct;28(8):51

'Healthcare professionals need greater awareness of the features of benign neonatal sleep myoclonus to reduce the number of neonates undergoing unnecessary investigations and avoid misdiagnosis of the condition as epilepsy.' Read More

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http://dx.doi.org/10.7748/ncyp.28.8.51.s35DOI Listing
October 2016
4 Reads

Avoiding mistaken epilepsy diagnosis in newborns.

Emerg Nurse 2016 Sep;24(5):14

Torbay Hospital, Torquay.

Parents of newborns can be reassured if healthcare professionals are aware of benign neonatal sleep myoclonus (BNSM) so it is not mistaken for epilepsy. Read More

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http://dx.doi.org/10.7748/en.24.5.14.s15DOI Listing
September 2016
3 Reads

Pharmacophore modeling, 3D-QSAR, and in silico ADME prediction of N-pyridyl and pyrimidine benzamides as potent antiepileptic agents.

J Recept Signal Transduct Res 2017 Jun 8;37(3):259-266. Epub 2016 Sep 8.

b School of Pharmacy , Maharishi Markandeshwar University , Sadopur, Ambala , Haryana , India.

Biological mechanism attributing mutations in KCNQ2/Q3 results in benign familial neonatal epilepsy (BFNE), a rare form of epilepsy and thus neglected. It offers a potential target for antiepileptic drug discovery. In the present work, a pharmacophore-based 3D-QSAR model was generated for a series of N-pyridyl and pyrimidine benzamides possessing KCNQ2/Q3 opening activity. Read More

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http://dx.doi.org/10.1080/10799893.2016.1217883DOI Listing
June 2017
9 Reads

Clinical and genetic features of 13 Spanish patients with KCNQ2 mutations.

J Hum Genet 2017 Feb 18;62(2):185-189. Epub 2016 Aug 18.

Unit of Child Neurology, Department of Pediatrics, Hospital Infantil Universitario Niño Jesús de Madrid, Madrid, Spain.

The KCNQ2 gene codifies a subunit of the voltage-gated potassium M channel underlying the neuronal M-current. Classically, mutations in this gene have been associated with benign familial neonatal seizures, however, in recent years KCNQ2 mutations have been reported associated to early-onset epileptic encephalopathy. In this work, detailed familiar, clinical and genetic data were collected for 13 KCNQ2-positive patients revealed among a cohort of 80 epileptic pediatric probands from Spain who were analyzed through a targeted next-generation sequencing assay for 155 epilepsy-associated genes. Read More

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http://dx.doi.org/10.1038/jhg.2016.104DOI Listing
February 2017
11 Reads

Phenobarbital reduces EEG amplitude and propagation of neonatal seizures but does not alter performance of automated seizure detection.

Clin Neurophysiol 2016 Oct 25;127(10):3343-50. Epub 2016 Jul 25.

Neonatal Brain Research Group, Irish Centre for Fetal and Neonatal Translational Research and Department of Paediatrics and Child Health, University College Cork, Ireland.

Objective: Phenobarbital increases electroclinical uncoupling and our preliminary observations suggest it may also affect electrographic seizure morphology. This may alter the performance of a novel seizure detection algorithm (SDA) developed by our group. The objectives of this study were to compare the morphology of seizures before and after phenobarbital administration in neonates and to determine the effect of any changes on automated seizure detection rates. Read More

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http://dx.doi.org/10.1016/j.clinph.2016.07.007DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5034854PMC
October 2016
12 Reads

The Epilepsy Spectrum: Targeting Future Research Challenges.

Cold Spring Harb Perspect Med 2016 07 1;6(7). Epub 2016 Jul 1.

Developmental Neurogenetics Laboratory, Departments of Neurology, Neuroscience, and Molecular and Human Genetics, Baylor College of Medicine, Houston, Texas 77030.

There have been tremendous recent advances in our understanding of the biological underpinnings of epilepsy and associated comorbidities that justify its representation as a spectrum disorder. Advances in genetics, electrophysiology, and neuroimaging have greatly improved our ability to differentiate, diagnose, and treat individuals with epilepsy. However, we have made little overall progress in preventing epilepsy, and the number of patients who are cured remains small. Read More

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http://dx.doi.org/10.1101/cshperspect.a028043DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4930917PMC
July 2016
4 Reads

Serum Phenobarbitone Levels in Term and Near Term Neonates with Seizures.

Indian Pediatr 2016 May;53(5):388-90

Department of Pediatrics, Lala Lajpat Rai Memorial Medical College, Meerut; and #Institute of Human Behavior and Allied Sciences, New Delhi; India. Correspondence to: Dr Amit Upadhyay, Head, Department of Pediatrics, LLRM Medical College, Meerut, India.

Objective: To evaluate serum phenobarbitone levels in neonates with seizures and to evaluate the effect of repeated loading dose on serum phenobarbitone levels.

Methods: In this prospective observational study conducted in a tertiary care centre of Northern India during 2011- 2012, 99 neonates admitted with seizureswere included.Serum phenobarbitone levels in neonates with seizures at 20 minutes and 12 hours after the first loading dose of phenobarbitone were measured. Read More

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May 2016
11 Reads