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2.
Neurohospitalist ; 13(4): 438-444, 2023 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-37701249

RESUMO

We report two distinct challenging initial presentations of myelin oligodendrocyte glycoprotein antibody-associated disease (MOGAD). Case 1 describes a 12-year-old boy who developed headaches refractory to pain medication followed by cranial neuropathies and intracranial hypertension, confirmed by lumbar puncture with an opening pressure >36 cm H2O. Case 2 describes a 3-year-old boy who developed new-onset seizures refractory to antiseizure medications, a presentation of FLAIR-hyperintense lesions in MOG-antibody associated encephalitis with seizures (FLAMES). On repeat magnetic resonance imaging, both patients were found to have cortical T2 hyperintensities, leptomeningeal contrast enhancement, and bilateral optic nerve enhancement. In the cerebrospinal fluid, both patients had CSF pleocytosis with neutrophilic predominance. The patients were treated with intravenous immunoglobulins, plasma exchange, and high-dose corticosteroids. The first patient achieved disease remission, whereas the second patient required the addition of rituximab for management of seizures. The two cases highlight the pleomorphic clinical phenotypes of MOGAD.

4.
Epilepsia ; 64(6): 1444-1457, 2023 06.
Artigo em Inglês | MEDLINE | ID: mdl-37039049

RESUMO

New onset refractory status epilepticus (NORSE), including its subtype with a preceding febrile illness known as febrile infection-related epilepsy syndrome (FIRES), is one of the most severe forms of status epilepticus. The exact causes of NORSE are currently unknown, and there is so far no disease-specific therapy. Identifying the underlying pathophysiology and discovering specific biomarkers, whether immunologic, infectious, genetic, or other, may help physicians in the management of patients with NORSE. A broad spectrum of biomarkers has been proposed for status epilepticus patients, some of which were evaluated for patients with NORSE. Nonetheless, none has been validated, due to significant variabilities in study cohorts, collected biospecimens, applied analytical methods, and defined outcome endpoints, and to small sample sizes. The NORSE Institute established an open NORSE/FIRES biorepository for health-related data and biological samples allowing the collection of biospecimens worldwide, promoting multicenter research and sharing of data and specimens. Here, we suggest standard operating procedures for biospecimen collection and biobanking in this rare condition. We also propose criteria for the appropriate use of previously collected biospecimens. We predict that the widespread use of standardized procedures will reduce heterogeneity, facilitate the future identification of validated biomarkers for NORSE, and provide a better understanding of the pathophysiology and best clinical management for these patients.


Assuntos
Epilepsia Resistente a Medicamentos , Encefalite , Estado Epiléptico , Humanos , Bancos de Espécimes Biológicos , Estado Epiléptico/tratamento farmacológico , Convulsões/complicações , Epilepsia Resistente a Medicamentos/terapia , Encefalite/complicações , Biomarcadores
5.
Epilepsy Behav ; 136: 108884, 2022 11.
Artigo em Inglês | MEDLINE | ID: mdl-36195022

RESUMO

OBJECTIVE: Female predominance is evident in childhood-onset psychogenic nonepileptic seizures (PNES). Understanding gender-specific vulnerability to PNES may provide a unique insight into its cause and management. We aimed to investigate gender differences in demographic characteristics, triggering factors and psychosocial functioning in children and youth with PNES. METHODS: We retrospectively reviewed patients who were evaluated in the PNES clinic at Children's Healthcare of Atlanta from July 2019 to March 2020 and completed questionnaires to assess adverse life events, psychosocial function (Pediatric Symptom Checklist-17 [PSC-17]), and somatic symptoms (Children's Somatic Symptom Inventory-8, [CSSI-8]). RESULTS: Forty-nine consecutive patients (38 girls, 11 boys) with a median age of 15.0 (9-19) years were included in the study. We performed univariate analysis and evaluated significant variables related to PNES according to sex. Majority of both genders experienced daily to weekly PNES, came from dysfunctional families, scored high on PSC-17, were treated for neuropsychiatric illnesses, and experienced bothersome somatic symptoms. The variables significantly different between genders were suicidal thoughts, history of trauma, and learning disability. Suicidal thoughts and trauma, particularly sexual abuse, were significantly more prevalent in girls (p = 0.03) whereas learning disability was more common in boys (p = 0.03). CONCLUSION: Females predominated in our PNES clinic (F:M = 3.5:1). Gender differences in predisposing factors were sexual abuse in females and learning disability in males. Our data highlight the gender-specific risk factors and vulnerability to PNES. The awareness of gender difference may guide more targeted intervention for children and youth with PNES.


Assuntos
Deficiências da Aprendizagem , Sintomas Inexplicáveis , Adolescente , Humanos , Feminino , Criança , Masculino , Adulto Jovem , Adulto , Fatores Sexuais , Convulsões/diagnóstico , Funcionamento Psicossocial , Estudos Retrospectivos , Convulsões Psicogênicas não Epilépticas , Fatores de Risco , Eletroencefalografia/efeitos adversos
6.
Front Cell Dev Biol ; 10: 969364, 2022.
Artigo em Inglês | MEDLINE | ID: mdl-36172274

RESUMO

Acute brain insults trigger diverse cellular and signaling responses and often precipitate epilepsy. The cellular, molecular and signaling events relevant to the emergence of the epileptic brain, however, remain poorly understood. These multiplex structural and functional alterations tend also to be opposing - some homeostatic and reparative while others disruptive; some associated with growth and proliferation while others, with cell death. To differentiate pathological from protective consequences, we compared seizure-induced changes in gene expression hours and days following kainic acid (KA)-induced status epilepticus (SE) in postnatal day (P) 30 and P15 rats by capitalizing on age-dependent differential physiologic responses to KA-SE; only mature rats, not immature rats, have been shown to develop spontaneous recurrent seizures after KA-SE. To correlate gene expression profiles in epileptic rats with epilepsy patients and demonstrate the clinical relevance of our findings, we performed gene analysis on four patient samples obtained from temporal lobectomy and compared to four control brains from NICHD Brain Bank. Pro-inflammatory gene expressions were at higher magnitudes and more sustained in P30. The inflammatory response was driven by the cytokines IL-1ß, IL-6, and IL-18 in the acute period up to 72 h and by IL-18 in the subacute period through the 10-day time point. In addition, a panoply of other immune system genes was upregulated, including chemokines, glia markers and adhesion molecules. Genes associated with the mitogen activated protein kinase (MAPK) pathways comprised the largest functional group identified. Through the integration of multiple ontological databases, we analyzed genes belonging to 13 separate pathways linked to Classical MAPK ERK, as well as stress activated protein kinases (SAPKs) p38 and JNK. Interestingly, genes belonging to the Classical MAPK pathways were mostly transiently activated within the first 24 h, while genes in the SAPK pathways had divergent time courses of expression, showing sustained activation only in P30. Genes in P30 also had different regulatory functions than in P15: P30 animals showed marked increases in positive regulators of transcription, of signaling pathways as well as of MAPKKK cascades. Many of the same inflammation-related genes as in epileptic rats were significantly upregulated in human hippocampus, higher than in lateral temporal neocortex. They included glia-associated genes, cytokines, chemokines and adhesion molecules and MAPK pathway genes. Uniquely expressed in human hippocampus were adaptive immune system genes including immune receptors CDs and MHC II HLAs. In the brain, many immune molecules have additional roles in synaptic plasticity and the promotion of neurite outgrowth. We propose that persistent changes in inflammatory gene expression after SE leads not only to structural damage but also to aberrant synaptogenesis that may lead to epileptogenesis. Furthermore, the sustained pattern of inflammatory genes upregulated in the epileptic mature brain was distinct from that of the immature brain that show transient changes and are resistant to cell death and neuropathologic changes. Our data suggest that the epileptogenic process may be a result of failed cellular signaling mechanisms, where insults overwhelm the system beyond a homeostatic threshold.

7.
Child Neurol Open ; 9: 2329048X221115476, 2022.
Artigo em Inglês | MEDLINE | ID: mdl-35936111

RESUMO

We present a case of a 3-year-old girl who rapidly developed bilateral facial palsy, dysphagia, dysphonia, areflexia, and ataxia soon after receiving an influenza vaccine. Brain and spine Magnetic resonance imaging (MRI) scans with and without contrast showed enhancement of cranial nerves III, V, VII, and X, as well as the anterior and posterior cervical spinal and cauda equina roots. cerebrospinal fluid (CSF) studies showed white blood cell count of 19 cells/cm2, glucose 81 mg/dL, and protein 116 mg/dL, with negative infectious and autoimmune labs. Serum IgM and IgG antibodies against GM1, GD1a, GD1b, GM2, GT1A, GQ1b were negative. The patient was treated with intravenous immunoglobulin, which led to a full recovery. Upon three-month follow-up, her neurologic examination demonstrated normal cranial nerves, reflexes, and gait. Her presentation was most consistent with the acute bulbar palsy plus (ABPp) variant of Guillain-Barré syndrome (GBS), a rare and challenging diagnosis especially in her age group.

8.
Epilepsia ; 2022 Aug 11.
Artigo em Inglês | MEDLINE | ID: mdl-35951466

RESUMO

OBJECTIVE: To develop consensus-based recommendations for the management of adult and pediatric patients with NORSE/FIRES based on best available evidence and expert opinion. METHODS: The Delphi methodology was followed. A facilitator group of 9 experts was established, who defined the scope, users and suggestions for recommendations. Following a review of the current literature, recommendation statements concerning diagnosis, treatment and research directions were generated which were then voted on a scale of 1 (strongly disagree) to 9 (strongly agree) by a panel of 48 experts in the field. Consensus that a statement was appropriate was reached if the median score was greater than or equal to 7, and inappropriate if the median score was less than or equal to 3. RESULTS: Overall, 85 recommendation statements achieved consensus. The recommendations are divided into five sections: 1) disease characteristics, 2) diagnostic testing and sampling, 3) acute treatment, 4) treatment in the post-acute phase, and 5) research, registries and future directions in NORSE/FIRES. These are summarized in this article along with two practical clinical flowsheets: one for diagnosis and evaluation and one for acute treatment. A corresponding evidence-based analysis of all 85 recommendations alongside responses by the Delphi panel is presented in a companion article. SIGNIFICANCE: The recommendations generated by this consensus can be used as a guide for the diagnosis, evaluation, and management of patients with NORSE/FIRES, and for planning of future research.

9.
Epilepsia ; 2022 Aug 23.
Artigo em Inglês | MEDLINE | ID: mdl-35997591

RESUMO

OBJECTIVE: To develop consensus-based recommendations for the management of adult and paediatric patients with NORSE/FIRES based on best evidence and experience. METHODS: The Delphi methodology was followed. A facilitator group of 9 experts was established, who defined the scope, users and suggestions for recommendations. Following a review of the current literature, recommendation statements concerning diagnosis, treatment and research directions were generated which were then voted on a scale of 1 (strongly disagree) to 9 (strongly agree) by a panel of 48 experts in the field. Consensus that a statement was appropriate was reached if the median score was greater or equal to 7, and inappropriate if the median score was less than or equal to 3. The analysis of evidence was mapped to the results of each statement included in the Delphi survey. RESULTS: Overall, 85 recommendation statements achieved consensus. The recommendations are divided into five sections: 1) disease characteristics, 2) diagnostic testing and sampling, 3) acute treatment, 4) treatment in the post-acute phase, and 5) research, registries and future directions in NORSE/FIRES. The detailed results and discussion of all 85 statements are outlined herein. A corresponding summary of findings and practical flowsheets are presented in a companion article. SIGNIFICANCE: This detailed analysis offers insight into the supporting evidence and the current gaps in the literature that are associated with expert consensus statements related to NORSE/FIRES. The recommendations generated by this consensus can be used as a guide for the diagnosis, evaluation, and management of patients with NORSE/FIRES, and for planning of future research.

10.
Neurology ; 99(14): 614-617, 2022 10 04.
Artigo em Inglês | MEDLINE | ID: mdl-35918155

RESUMO

Rasmussen encephalitis is a devastating progressive inflammatory disorder that leads to debilitating neurologic deficits and intractable epilepsy. Surgical treatment of the dominant hemisphere has been attempted with hesitation, given the lack of effective diagnostic tools to determine the potential functional deficits from disconnection procedures.


Assuntos
Epilepsia Resistente a Medicamentos , Encefalite , Hemisferectomia , Neurologia , Criança , Epilepsia Resistente a Medicamentos/cirurgia , Encefalite/diagnóstico , Humanos , Magnetoencefalografia/métodos , Resultado do Tratamento
11.
J Child Neurol ; 37(8-9): 738-743, 2022 08.
Artigo em Inglês | MEDLINE | ID: mdl-35746887

RESUMO

OBJECTIVE: To determine the nature of staring spells and factors distinguishing epileptic from nonepileptic staring spells, we studied the clinical and demographic features of children with staring spells referred to a regional new-onset seizure clinic. STUDY DESIGN: Our retrospective chart review encompassed 2818 consecutive patients evaluated in the new-onset seizure clinic between September 22, 2015, and March 19, 2018. We identified 121 patients with newly presenting staring spells. RESULTS: Sixty-two of 121 (51%) children were diagnosed with nonepileptic staring spells and 59 (49%) with epileptic seizures (24 with absence epilepsy, 35 with focal epilepsy). Patients with nonepileptic staring spells were younger (4.8 vs 7.1 years, P = .001) and more likely to have developmental delay (P = .005) than the seizure group. There was an 8.9-month delay on average from the onset of staring spells to the new-onset seizure clinic visit. The emergency department was a referral source for 80% (28/35) of focal seizures. In children with focal seizures, the staring spells typically lasted >1minute (29/35, 83%), whereas only 19 of 62 (31%) of children with nonepileptic staring spells had events lasting this long (P = .04). All children had a routine electroencephalography (EEG) on the day of new-onset seizure clinic visit. EEG was diagnostic in 100% (24/24) of absence seizures and 51% (18/35) of focal seizures. CONCLUSIONS: In children presenting with staring spells, the differential diagnosis of epileptic staring spells vs nonepileptic staring spells can be made by history and routine EEG. Staring was as likely to be epileptic as nonepileptic spells. Younger children with developmental delay were more likely to have nonepileptic events. Our simple approach based on event duration, postictal symptoms, and EEG allowed identification of epileptic staring on first visit to new-onset seizure clinic but requires validation in future prospective studies including long-term video EEG monitoring and follow-up.


Assuntos
Epilepsia Tipo Ausência , Transtornos Mentais , Criança , Eletroencefalografia , Humanos , Estudos Retrospectivos , Convulsões/diagnóstico
12.
Epilepsia ; 63(7): 1778-1786, 2022 07.
Artigo em Inglês | MEDLINE | ID: mdl-35383912

RESUMO

OBJECTIVE: Vaccination against the SARS-CoV-2 virus is a primary tool to combat the COVID-19 pandemic. However, vaccination is a common seizure trigger in individuals with Dravet syndrome (DS). Information surrounding COVID-19 vaccine side effects in patients with DS would aid caregivers and providers in decisions for and management of COVID-19 vaccination. METHODS: A survey was emailed to the Dravet Syndrome Foundation's Family Network and posted to the Dravet Parent & Caregiver Support Group on Facebook between May and August 2021. Deidentified information obtained included demographics and vaccination status for individuals with DS. Vaccine type, side effects, preventative measures, and changes in seizure activity following COVID-19 vaccination were recorded. For unvaccinated individuals, caregivers were asked about intent to vaccinate and reasons for their decision. RESULTS: Of 278 survey responses, 120 represented vaccinated individuals with DS (median age = 19.5 years), with 50% reporting no side effects from COVID-19 vaccination. Increased seizures following COVID-19 vaccination were reported in 16 individuals, but none had status epilepticus. Of the 158 individuals who had not received a COVID-19 vaccination, 37 were older than 12 years (i.e., eligible at time of study), and only six of these caregivers indicated intent to seek vaccination. The remaining 121 responses were caregivers to children younger than 12 years, 60 of whom indicated they would not seek COVID-19 vaccination when their child with DS became eligible. Reasons for vaccine hesitancy were fear of increased seizure activity and concerns about vaccine safety. SIGNIFICANCE: These results indicate COVID-19 vaccination is well tolerated by individuals with DS. One main reason for vaccine hesitancy was fear of increased seizure activity, which occurred in only 13% of vaccinated individuals, and none had status epilepticus. This study provides critical and reassuring insights for caregivers and health care providers making decisions about the safety of COVID-19 vaccinations for individuals with DS.


Assuntos
COVID-19 , Epilepsias Mioclônicas , Estado Epiléptico , Adulto , COVID-19/prevenção & controle , Vacinas contra COVID-19/efeitos adversos , Criança , Epilepsias Mioclônicas/etiologia , Síndromes Epilépticas , Humanos , Pandemias , SARS-CoV-2 , Convulsões/etiologia , Espasmos Infantis , Estado Epiléptico/etiologia , Vacinação/efeitos adversos , Adulto Jovem
13.
Epilepsia ; 63(7): e68-e73, 2022 07.
Artigo em Inglês | MEDLINE | ID: mdl-35474188

RESUMO

This study assessed the effectiveness of genetic testing in shortening the time to diagnosis of late infantile neuronal ceroid lipofuscinosis type 2 (CLN2) disease. Individuals who received epilepsy gene panel testing through Behind the Seizure® , a sponsored genetic testing program (Cohort A), were compared to children outside of the sponsored testing program during the same period (Cohort B). Two cohorts were analyzed: children aged ≥24 to ≤60 months with unprovoked seizure onset at ≥24 months between December 2016 and January 2020 (Cohort 1) and children aged 0 to ≤60 months at time of testing with unprovoked seizure onset at any age between February 2019 and January 2020 (Cohort 2). The diagnostic yield in Cohort 1A (n = 1814) was 8.4% (n = 153). The TPP1 diagnostic yield within Cohort 1A was 2.9-fold higher compared to Cohort 1B (1.0%, n = 18/1814 vs. .35%, n = 8/2303; p = .0157). The average time from first symptom to CLN2 disease diagnosis was significantly shorter than previously reported (9.8 vs. 22.7 months, p < .001). These findings indicate that facilitated access to early epilepsy gene panel testing helps to increase diagnostic yield for CLN2 disease and shortens the time to diagnosis, enabling earlier intervention.


Assuntos
Epilepsia , Lipofuscinoses Ceroides Neuronais , Aminopeptidases/genética , Criança , Dipeptidil Peptidases e Tripeptidil Peptidases/genética , Epilepsia/diagnóstico , Epilepsia/genética , Testes Genéticos , Humanos , Lipofuscinoses Ceroides Neuronais/diagnóstico , Lipofuscinoses Ceroides Neuronais/genética , Convulsões/genética , Serina Proteases/genética , Tripeptidil-Peptidase 1
14.
J Child Neurol ; 37(3): 186-193, 2022 03.
Artigo em Inglês | MEDLINE | ID: mdl-35044272

RESUMO

Objective: In a randomized trial, we aimed to evaluate the efficacy of cosyntropin injectable suspension, 1 mg/mL, compared to vigabatrin for infantile spasms syndrome. An additional arm was included to assess the efficacy of combination therapy (cosyntropin and vigabatrin) compared with cosyntropin monotherapy. Methods: Children (2 months to 2 years) with new-onset infantile spasms syndrome and hypsarhythmia were randomized into 3 arms: cosyntropin, vigabatrin, and cosyntropin and vigabatrin combined. Daily seizures and adverse events were recorded, and EEG was repeated at day 14 to assess for resolution of hypsarhythmia. The primary outcome measure was the composite of resolution of hypsarhythmia and absence of clinical spasms at day 14. Fisher exact test was used to compare outcomes. Results: 37 children were enrolled and 34 were included in the final efficacy analysis (1 withdrew prior to treatment and 2 did not return seizure diaries). Resolution of both hypsarhythmia and clinical spasms was achieved in in 9 of 12 participants (75%) treated with cosyntropin, 1/9 (11%) vigabatrin, and 5/13 (38%) cosyntropin and vigabatrin combined. The primary comparison of cosyntropin versus vigabatrin was significant (64% [95% confidence interval 21, 82], P < .01). Adverse events were reported in all 3 treatment arms: 31 (86%) had an adverse event, 7 (19%) had a serious adverse event, and 15 (42%) had an adverse event of special interest with no difference between treatment arms. Significance: This randomized trial was underpowered because of incomplete enrollment, yet it demonstrated that cosyntropin was more effective for short-term outcomes than vigabatrin as initial treatment for infantile spasms.


Assuntos
Espasmos Infantis , Vigabatrina , Anticonvulsivantes/efeitos adversos , Criança , Cosintropina/uso terapêutico , Humanos , Estudos Prospectivos , Espasmo/induzido quimicamente , Espasmo/complicações , Espasmo/tratamento farmacológico , Espasmos Infantis/tratamento farmacológico , Espasmos Infantis/etiologia , Resultado do Tratamento , Vigabatrina/efeitos adversos
15.
Neurologist ; 26(6): 274-275, 2021 Nov 04.
Artigo em Inglês | MEDLINE | ID: mdl-34734907

RESUMO

INTRODUCTION: Coronavirus disease 2019 (COVID-19) has affected millions of people worldwide and is caused by infection from the severe acute respiratory syndrome coronavirus-2 pathogen. While COVID-19 most commonly affects the respiratory system, multiple neurological complications have been associated with this pathogen. We report a case of Wernicke encephalopathy in a young girl with poor oral intake secondary to anosmia and dysgeusia after a COVID-19 infection. CASE REPORT: After a recent infection of COVID-19, a 15-year-old girl developed an overwhelming noxious metallic tase resulting in a 30 lb weight loss from being unable to tolerate oral foods. She presented to the hospital 3 months later with bilateral horizontal conjugate gaze palsies, up beating vertical nystagmus, difficulty with limb coordination and gait ataxia. She was found to have a thiamine level of 51 nmol/L (reference range: 70 to 180 nmol/L) and her brain magnetic resonance imaging showed fluid-attenuated inversion recovery and diffusion-weighted imaging changes in the periaqueductal gray and dorsomedial thalami suggestive of Wernicke encephalopathy. She was started on parenteral thiamine replacement and had significant neurological improvement. CONCLUSIONS: As this pandemic continues to progress, more long-term neurological sequelae from COVID-19 such as Wernicke encephalopathy can be expected. Strong clinical suspicion for these complications is needed to allow for earlier diagnosis and faster treatment initiation.


Assuntos
COVID-19 , Transtornos do Olfato , Deficiência de Tiamina , Encefalopatia de Wernicke , Adolescente , Feminino , Humanos , Imageamento por Ressonância Magnética , SARS-CoV-2 , Encefalopatia de Wernicke/tratamento farmacológico , Encefalopatia de Wernicke/etiologia
16.
Epilepsy Res ; 177: 106743, 2021 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-34624600

RESUMO

INTRODUCTION: Dravet syndrome (DS) is still seen as a "pediatric disease", where patients receive excellent care in pediatric centers, but care is less than optimal in adult health care systems (HCS). This creates a barrier when young adults need to leave the family-centered pediatric system and enter the adult, patient-centered HCS. Here we create a guide to help with the transition from pediatric to adult for patients with DS. METHODS: Experts in Dravet syndrome flagged the main barriers in caring for adults with DS and created a 2-page transition summary guide based on their expertise and a literature review. RESULTS: The 2-page guide addresses: DS diagnosis in children and adults; clinical manifestations, including the differences in seizures types and frequencies between children and adults with DS; the natural history of intellectual disability, behavior, gait, motor disorders and dysautonomia; a review of optimal treatments (including medications not commonly used in adult epilepsy settings such as stiripentol and fenfluramine), as well as emergency seizure management; avoidance of triggers, preventive measures, and vaccine administration in adults with DS. CONCLUSION: Several young adults with DS are still followed by their child neurologist. This 2-page transition guide should help facilitate the transition of patients with DS to the adult HCS and should be given to families as well as adult health care providers that may not be familiar with DS.


Assuntos
Epilepsias Mioclônicas , Espasmos Infantis , Anticonvulsivantes/uso terapêutico , Criança , Epilepsias Mioclônicas/tratamento farmacológico , Epilepsias Mioclônicas/terapia , Fenfluramina/uso terapêutico , Humanos , Neurologistas , Espasmos Infantis/tratamento farmacológico , Adulto Jovem
17.
Genet Med ; 23(12): 2455-2460, 2021 12.
Artigo em Inglês | MEDLINE | ID: mdl-34385670

RESUMO

PURPOSE: Alternative splicing plays a critical role in mouse neurodevelopment, regulating neurogenesis, cortical lamination, and synaptogenesis, yet few human neurodevelopmental disorders are known to result from pathogenic variation in splicing regulator genes. Nuclear Speckle Splicing Regulator Protein 1 (NSRP1) is a ubiquitously expressed splicing regulator not known to underlie a Mendelian disorder. METHODS: Exome sequencing and rare variant family-based genomics was performed as a part of the Baylor-Hopkins Center for Mendelian Genomics Initiative. Additional families were identified via GeneMatcher. RESULTS: We identified six patients from three unrelated families with homozygous loss-of-function variants in NSRP1. Clinical features include developmental delay, epilepsy, variable microcephaly (Z-scores -0.95 to -5.60), hypotonia, and spastic cerebral palsy. Brain abnormalities included simplified gyral pattern, underopercularization, and/or vermian hypoplasia. Molecular analysis identified three pathogenic NSRP1 predicted loss-of-function variant alleles: c.1359_1362delAAAG (p.Glu455AlafsTer20), c.1272dupG (p.Lys425GlufsTer5), and c.52C>T (p.Gln18Ter). The two frameshift variants result in a premature termination codon in the last exon, and the mutant transcripts are predicted to escape nonsense mediated decay and cause loss of a C-terminal nuclear localization signal required for NSRP1 function. CONCLUSION: We establish NSRP1 as a gene for a severe autosomal recessive neurodevelopmental disease trait characterized by developmental delay, epilepsy, microcephaly, and spastic cerebral palsy.


Assuntos
Paralisia Cerebral , Epilepsia , Microcefalia , Transtornos do Neurodesenvolvimento , Proteínas Nucleares/genética , Paralisia Cerebral/genética , Epilepsia/genética , Humanos , Microcefalia/genética , Microcefalia/patologia , Transtornos do Neurodesenvolvimento/genética , Linhagem , Splicing de RNA
18.
Epilepsia Open ; 6(1): 62-72, 2021 03.
Artigo em Inglês | MEDLINE | ID: mdl-33681649

RESUMO

Febrile infection-related epilepsy syndrome (FIRES) is a rare catastrophic epileptic encephalopathy that presents suddenly in otherwise normal children and young adults causing significant neurological disability, chronic epilepsy, and high rates of mortality. To suggest a therapy protocol to improve outcome of FIRES, workshops were held in conjunction with American Epilepsy Society annual meeting between 2017 and 2019. An international group of pediatric epileptologists, pediatric neurointensivists, rheumatologists and basic scientists with interest and expertise in FIRES convened to propose an algorithm for a standardized approach to the diagnosis and treatment of FIRES. The broad differential for refractory status epilepticus (RSE) should include FIRES, to allow empiric therapies to be started early in the clinical course. FIRES should be considered in all previously healthy patients older than two years of age who present with explosive onset of seizures rapidly progressing to RSE, following a febrile illness in the preceding two weeks. Once FIRES is suspected, early administrations of ketogenic diet and anakinra (the IL-1 receptor antagonist that blocks biologic activity of IL-1ß) are recommended.


Assuntos
Epilepsia Resistente a Medicamentos , Encefalite/complicações , Síndromes Epilépticas , Convulsões Febris , Adolescente , Canabidiol/uso terapêutico , Criança , Pré-Escolar , Dieta Cetogênica , Epilepsia Resistente a Medicamentos/classificação , Epilepsia Resistente a Medicamentos/diagnóstico , Síndromes Epilépticas/complicações , Síndromes Epilépticas/fisiopatologia , Humanos , Doenças do Sistema Imunitário/complicações , Lactente , Proteína Antagonista do Receptor de Interleucina 1/uso terapêutico , Convulsões Febris/classificação , Convulsões Febris/diagnóstico , Estado Epiléptico/classificação , Estado Epiléptico/diagnóstico
19.
Genet Med ; 23(5): 872-880, 2021 05.
Artigo em Inglês | MEDLINE | ID: mdl-33564151

RESUMO

PURPOSE: To understand the consequences of the 3q29 deletion on medical, neurodevelopmental, psychiatric, brain structural, and neurological sequalae by systematic evaluation of affected individuals. To develop evidence-based recommendations using these data for effective clinical care. METHODS: Thirty-two individuals with the 3q29 deletion were evaluated using a defined phenotyping protocol and standardized data collection instruments. RESULTS: Medical manifestations were varied and reported across nearly every organ system. The most severe manifestations were congenital heart defects (25%) and the most common were gastrointestinal symptoms (81%). Physical examination revealed a high proportion of musculoskeletal findings (81%). Neurodevelopmental phenotypes represent a significant burden and include intellectual disability (34%), autism spectrum disorder (38%), executive function deficits (46%), and graphomotor weakness (78%). Psychiatric illness manifests across the lifespan with psychosis prodrome (15%), psychosis (20%), anxiety disorders (40%), and attention deficit-hyperactivity disorder (ADHD) (63%). Neuroimaging revealed structural anomalies of the posterior fossa, but on neurological exam study subjects displayed only mild or moderate motor vulnerabilities. CONCLUSION: By direct evaluation of 3q29 deletion study subjects, we document common features of the syndrome, including a high burden of neurodevelopmental and neuropsychiatric phenotypes. Evidence-based recommendations for evaluation, referral, and management are provided to help guide clinicians in the care of 3q29 deletion patients.


Assuntos
Transtorno do Espectro Autista , Deficiência Intelectual , Transtornos Psicóticos , Transtorno do Espectro Autista/diagnóstico , Transtorno do Espectro Autista/genética , Criança , Deleção Cromossômica , Deficiências do Desenvolvimento/genética , Humanos , Deficiência Intelectual/diagnóstico , Deficiência Intelectual/genética
20.
Clin Exp Pediatr ; 64(6): 251-259, 2021 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-33091974

RESUMO

Psychogenic nonepileptic seizures (PNES) is a neuropsychiatric condition that causes a transient alteration of consciousness and loss of self-control. PNES, which occur in vulnerable individuals who often have experienced trauma and are precipitated by overwhelming circumstances, are a body's expression of a distressed mind, a cry for help. PNES are misunderstood, mistreated, under-recognized, and underdiagnosed. The mindbody dichotomy, an artificial divide between physical and mental health and brain disorders into neurology and psychiatry, contributes to undue delays in the diagnosis and treatment of PNES. One of the major barriers in the effective diagnosis and treatment of PNES is the dissonance caused by different illness perceptions between patients and providers. While patients are bewildered by their experiences of disabling attacks beyond their control or comprehension, providers consider PNES trivial because they are not epileptic seizures and are caused by psychological stress. The belief that patients with PNES are feigning or controlling their symptoms leads to negative attitudes of healthcare providers, which in turn lead to a failure to provide the support and respect that patients with PNES so desperately need and deserve. A biopsychosocial perspective and better understanding of the neurobiology of PNES may help bridge this great divide between brain and behavior and improve our interaction with patients, thereby improving prognosis. Knowledge of dysregulated stress hormones, autonomic nervous system dysfunction, and altered brain connectivity in PNES will better prepare providers to communicate with patients how intangible emotional stressors could cause tangible involuntary movements and altered awareness.

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