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Shao C, Li D, Zhang X, Xiang F, Zhang X, Wang X. Inhibitory control deficits in patients with mesial temporal lobe epilepsy: an event-related potential analysis based on Go/NoGo task. Front Neurol 2024; 14:1326841. [PMID: 38264090 PMCID: PMC10804952 DOI: 10.3389/fneur.2023.1326841] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2023] [Accepted: 12/21/2023] [Indexed: 01/25/2024] Open
Abstract
Objective Neuropsychiatric comorbidities are common among patients with mesial temporal lobe epilepsy (MTLE). One of these comorbidities, impulsivity, can significantly impact the quality of life and prognosis. However, there have been few studies of impulsivity in these patients, and the existing findings are inconsistent. The present study investigates impulsivity in MTLE patients from the perspective of inhibitory control and its underlying processes using event-related potentials (ERPs) initiated using a Go/NoGo task. Methods A total of 25 MTLE patients and 25 age-, gender-, and education-matched healthy controls (HCs) completed an unequal visual Go/NoGo task. Different waveforms as well as behavioral measures were analyzed between Go and NoGo conditions (N2d and P3d). Impulsivity was also assessed using self -rating scales, and clinical variables that may be related to ERPs were explored. Results Compared with HCs, MTLE patients exhibited significantly longer reaction time (RT) (p = 0.002) and lower P3d especially at the frontal electrode sites (p = 0.001). In the MTLE group, the seizure frequency (p = 0.045) and seizure types (p < 0.001) were correlated with the P3d amplitude. A self-rated impulsivity assessment revealed that MTLE patients had higher non-planning (p = 0.017) and total scores (p = 0.019) on the BIS-11 as well as higher DI (p = 0.010) and lower FI (p = 0.007) on the DII. Conclusion The findings demonstrate that the presence of inhibitory control deficits in patients with MTLE are characterized by deficits in the late stage of inhibition control, namely the motor inhibition stage. This study improves our understanding of impulsivity in MTLE patients and suggests that ERPs may constitute a sensitive means of detecting this trait.
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Affiliation(s)
- Chenjing Shao
- Medical School of Chinese PLA, Beijing, China
- Department of Neurology, The Second Medical Centre, National Clinical Research Centre for Geriatric Diseases, Chinese PLA General Hospital, Beijing, China
| | - Desheng Li
- Department of Neurology, The First Medical Centre of Chinese PLA General Hospital, Beijing, China
| | - Xu Zhang
- Department of Neurology, The First Medical Centre of Chinese PLA General Hospital, Beijing, China
| | - Feng Xiang
- Department of Neurology, The First Medical Centre of Chinese PLA General Hospital, Beijing, China
| | - Xi Zhang
- Department of Neurology, The Second Medical Centre, National Clinical Research Centre for Geriatric Diseases, Chinese PLA General Hospital, Beijing, China
| | - Xiangqing Wang
- Department of Neurology, The First Medical Centre of Chinese PLA General Hospital, Beijing, China
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Roshandel D, Sanders EJ, Shakeshaft A, Panjwani N, Lin F, Collingwood A, Hall A, Keenan K, Deneubourg C, Mirabella F, Topp S, Zarubova J, Thomas RH, Talvik I, Syvertsen M, Striano P, Smith AB, Selmer KK, Rubboli G, Orsini A, Ng CC, Møller RS, Lim KS, Hamandi K, Greenberg DA, Gesche J, Gardella E, Fong CY, Beier CP, Andrade DM, Jungbluth H, Richardson MP, Pastore A, Fanto M, Pal DK, Strug LJ. SLCO5A1 and synaptic assembly genes contribute to impulsivity in juvenile myoclonic epilepsy. NPJ Genom Med 2023; 8:28. [PMID: 37770509 PMCID: PMC10539321 DOI: 10.1038/s41525-023-00370-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2023] [Accepted: 08/29/2023] [Indexed: 09/30/2023] Open
Abstract
Elevated impulsivity is a key component of attention-deficit hyperactivity disorder (ADHD), bipolar disorder and juvenile myoclonic epilepsy (JME). We performed a genome-wide association, colocalization, polygenic risk score, and pathway analysis of impulsivity in JME (n = 381). Results were followed up with functional characterisation using a drosophila model. We identified genome-wide associated SNPs at 8q13.3 (P = 7.5 × 10-9) and 10p11.21 (P = 3.6 × 10-8). The 8q13.3 locus colocalizes with SLCO5A1 expression quantitative trait loci in cerebral cortex (P = 9.5 × 10-3). SLCO5A1 codes for an organic anion transporter and upregulates synapse assembly/organisation genes. Pathway analysis demonstrates 12.7-fold enrichment for presynaptic membrane assembly genes (P = 0.0005) and 14.3-fold enrichment for presynaptic organisation genes (P = 0.0005) including NLGN1 and PTPRD. RNAi knockdown of Oatp30B, the Drosophila polypeptide with the highest homology to SLCO5A1, causes over-reactive startling behaviour (P = 8.7 × 10-3) and increased seizure-like events (P = 6.8 × 10-7). Polygenic risk score for ADHD genetically correlates with impulsivity scores in JME (P = 1.60 × 10-3). SLCO5A1 loss-of-function represents an impulsivity and seizure mechanism. Synaptic assembly genes may inform the aetiology of impulsivity in health and disease.
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Affiliation(s)
- Delnaz Roshandel
- Genetics and Genome Biology Program, The Hospital for Sick Children, Toronto, Canada
| | - Eric J Sanders
- Genetics and Genome Biology Program, The Hospital for Sick Children, Toronto, Canada
- Division of Biostatistics, Dalla Lana School of Public Health, The University of Toronto, Toronto, Canada
| | - Amy Shakeshaft
- Department of Basic & Clinical Neurosciences, Institute of Psychiatry, Psychology & Neuroscience, King's College London, London, UK
- MRC Centre for Neurodevelopmental Disorders, King's College London, London, UK
| | - Naim Panjwani
- Genetics and Genome Biology Program, The Hospital for Sick Children, Toronto, Canada
| | - Fan Lin
- Genetics and Genome Biology Program, The Hospital for Sick Children, Toronto, Canada
| | - Amber Collingwood
- Department of Basic & Clinical Neurosciences, Institute of Psychiatry, Psychology & Neuroscience, King's College London, London, UK
| | - Anna Hall
- Department of Basic & Clinical Neurosciences, Institute of Psychiatry, Psychology & Neuroscience, King's College London, London, UK
| | - Katherine Keenan
- Genetics and Genome Biology Program, The Hospital for Sick Children, Toronto, Canada
| | - Celine Deneubourg
- Department of Basic & Clinical Neurosciences, Institute of Psychiatry, Psychology & Neuroscience, King's College London, London, UK
| | - Filippo Mirabella
- Department of Basic & Clinical Neurosciences, Institute of Psychiatry, Psychology & Neuroscience, King's College London, London, UK
| | - Simon Topp
- Department of Basic & Clinical Neurosciences, Institute of Psychiatry, Psychology & Neuroscience, King's College London, London, UK
| | - Jana Zarubova
- Department of Neurology, Second Faculty of Medicine, Charles University and Motol University Hospital, Prague, Czech Republic
| | - Rhys H Thomas
- Newcastle upon Tyne NHS Foundation Trust, Newcastle, UK
- Translational and Clinical Research Institute, Faculty of Medical Sciences, Newcastle University, Newcastle, UK
| | | | - Marte Syvertsen
- Department of Neurology, Drammen Hospital, Vestre Viken Health Trust, Oslo, Norway
| | - Pasquale Striano
- IRCCS Istituto 'G. Gaslini', Genova, Italy
- Department of Neurosciences, Rehabilitation, Ophthalmology, Genetics, Maternal and Child Health, University of Genova, Genova, Italy
| | - Anna B Smith
- Department of Basic & Clinical Neurosciences, Institute of Psychiatry, Psychology & Neuroscience, King's College London, London, UK
| | - Kaja K Selmer
- Department of Research and Innovation, Division of Clinical Neuroscience, Oslo University Hospital, Oslo, Norway
- National Centre for Epilepsy, Oslo University Hospital, Oslo, Norway
| | - Guido Rubboli
- Danish Epilepsy Centre, Dianalund, Denmark
- University of Copenhagen, Copenhagen, Denmark
| | - Alessandro Orsini
- Pediatric Neurology, Azienda Ospedaliero-Universitaria Pisana, Pisa University Hospital, Pisa, Italy
| | - Ching Ching Ng
- Institute of Biological Sciences, Faculty of Science, University of Malaya, Kuala Lumpur, Malaysia
| | - Rikke S Møller
- Danish Epilepsy Centre, Dianalund, Denmark
- Department of Regional Health Research, University of Southern Denmark, Odense, Denmark
| | - Kheng Seang Lim
- Division of Neurology, Department of Medicine, Faculty of Medicine, University of Malaya, Kuala Lumpur, Malaysia
| | - Khalid Hamandi
- The Welsh Epilepsy Unit, Department of Neurology Cardiff & Vale University Health Board, Cardiff, UK
- Department of Psychological Medicine and Clinical Neuroscience, Cardiff University, Cardiff, UK
| | | | | | - Elena Gardella
- Danish Epilepsy Centre, Dianalund, Denmark
- Department of Regional Health Research, University of Southern Denmark, Odense, Denmark
| | - Choong Yi Fong
- Division of Paediatric Neurology, Department of Pediatrics, Faculty of Medicine, University of Malaya, Kuala Lumpur, Malaysia
| | | | - Danielle M Andrade
- Adult Epilepsy Genetics Program, Krembil Research Institute, University of Toronto, Toronto, Canada
| | - Heinz Jungbluth
- Randall Centre for Cell and Molecular Biophysics, Muscle Signalling Section, Faculty of Life Sciences and Medicine, King's College London, London, UK
- Department of Paediatric Neurology, Neuromuscular Service, Evelina's Children Hospital, Guy's & St. Thomas' Hospital NHS Foundation Trust, London, UK
| | - Mark P Richardson
- Department of Basic & Clinical Neurosciences, Institute of Psychiatry, Psychology & Neuroscience, King's College London, London, UK
- King's College Hospital, London, UK
| | - Annalisa Pastore
- Department of Basic & Clinical Neurosciences, Institute of Psychiatry, Psychology & Neuroscience, King's College London, London, UK
| | - Manolis Fanto
- Department of Basic & Clinical Neurosciences, Institute of Psychiatry, Psychology & Neuroscience, King's College London, London, UK
| | - Deb K Pal
- Department of Basic & Clinical Neurosciences, Institute of Psychiatry, Psychology & Neuroscience, King's College London, London, UK.
- MRC Centre for Neurodevelopmental Disorders, King's College London, London, UK.
- King's College Hospital, London, UK.
| | - Lisa J Strug
- Genetics and Genome Biology Program, The Hospital for Sick Children, Toronto, Canada.
- Division of Biostatistics, Dalla Lana School of Public Health, The University of Toronto, Toronto, Canada.
- Departments of Statistical Sciences and Computer Science, The University of Toronto, Toronto, Canada.
- The Centre for Applied Genomics, The Hospital for Sick Children, Toronto, Canada.
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Nakamura Y, Sakurai K, Ishikawa S, Horinouchi T, Hashimoto N, Kusumi I. Outpatient visit behavior in patients with epilepsy: Generalized Epilepsy is more frequently non-attendance than Focal Epilepsy. Epilepsy Behav 2023; 145:109345. [PMID: 37441983 DOI: 10.1016/j.yebeh.2023.109345] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/11/2023] [Revised: 06/24/2023] [Accepted: 06/25/2023] [Indexed: 07/15/2023]
Abstract
BACKGROUND Patients with epilepsy (PWE), especially those with Idiopathic Epilepsy (GE), are at a high risk of disadvantage caused by non-adherence. It has been suggested that medical visit behavior may be a surrogate indicator of medication adherence. We hypothesized that patients with IGE would adhere poorly to visits. METHODS This was a retrospective study of PWE who visited the Department of Psychiatry and Neurology at Hokkaido University Hospital between January 2017 and December 2019. Demographic and clinical information on PWE were extracted from medical records and visit data from the medical information system. Non-attendance of outpatient appointments was defined as "not showing up for the day of an appointment without prior notice." Mixed-effects logistic regression analysis was conducted with non-attendance as the objective variable. RESULTS Of the 9151 total appointments, 413 were non-attendances, with an overall non-attendance rate of 4.5%. IGE was a more frequent non-attendance than Focal Epilepsy (FE) (odds ratio (OR) 1.94; 95% confidence interval (CI) 1.17-3.21; p = 0.010). History of public assistance receipt was associated with higher non-attendance (OR 2.04; 95% CI 1.22-3.43; p = 0.007), while higher education (OR 0.64; 95% CI 0.43-0.93; p = 0.021) and farther distance to a hospital (OR 0.33; 95% CI 0.13-0.88; p = 0.022), and higher frequency of visits (OR 0.18; 95% CI 0.04-0.86; p = 0.031) were associated with fewer non-attendances. In a subgroup analysis of patients with GE, women were associated with fewer non-attendance (OR 0.31; 95% CI 0.14-0.72; p = 0.006). CONCLUSIONS GE was more frequent in the non-attendance group than in the FE group. Among patients with GE, females were found to have non-attendance less frequently; however, there was no clear difference in the odds of non-attendance between Juvenile Myoclonic Epilepsy (JME) and IGE other than JME.
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Affiliation(s)
- Yuichi Nakamura
- Department of Psychiatry, Hokkaido University Graduate School of Medicine, North 15, West 7, Kita-Ku, Sapporo Hokkaido 060-8638, Japan.
| | - Kotaro Sakurai
- Department of Neuropsychiatry, Aichi Medical University, 1-1, Karimata, Yazako, Nagakute-shi, Aichi 480-1195, Japan
| | - Shuhei Ishikawa
- Department of Psychiatry, Hokkaido University Graduate School of Medicine, North 15, West 7, Kita-Ku, Sapporo Hokkaido 060-8638, Japan
| | - Toru Horinouchi
- Department of Psychiatry, Hokkaido University Graduate School of Medicine, North 15, West 7, Kita-Ku, Sapporo Hokkaido 060-8638, Japan
| | - Naoki Hashimoto
- Department of Psychiatry, Hokkaido University Graduate School of Medicine, North 15, West 7, Kita-Ku, Sapporo Hokkaido 060-8638, Japan
| | - Ichiro Kusumi
- Department of Psychiatry, Hokkaido University Graduate School of Medicine, North 15, West 7, Kita-Ku, Sapporo Hokkaido 060-8638, Japan
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Rubboli G, Beier CP, Selmer KK, Syvertsen M, Shakeshaft A, Collingwood A, Hall A, Andrade DM, Fong CY, Gesche J, Greenberg DA, Hamandi K, Lim KS, Ng CC, Orsini A, Striano P, Thomas RH, Zarubova J, Richardson MP, Strug LJ, Pal DK. Variation in prognosis and treatment outcome in juvenile myoclonic epilepsy: a Biology of Juvenile Myoclonic Epilepsy Consortium proposal for a practical definition and stratified medicine classifications. Brain Commun 2023; 5:fcad182. [PMID: 37361715 PMCID: PMC10288558 DOI: 10.1093/braincomms/fcad182] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2022] [Revised: 03/21/2023] [Accepted: 06/08/2023] [Indexed: 06/28/2023] Open
Abstract
Reliable definitions, classifications and prognostic models are the cornerstones of stratified medicine, but none of the current classifications systems in epilepsy address prognostic or outcome issues. Although heterogeneity is widely acknowledged within epilepsy syndromes, the significance of variation in electroclinical features, comorbidities and treatment response, as they relate to diagnostic and prognostic purposes, has not been explored. In this paper, we aim to provide an evidence-based definition of juvenile myoclonic epilepsy showing that with a predefined and limited set of mandatory features, variation in juvenile myoclonic epilepsy phenotype can be exploited for prognostic purposes. Our study is based on clinical data collected by the Biology of Juvenile Myoclonic Epilepsy Consortium augmented by literature data. We review prognosis research on mortality and seizure remission, predictors of antiseizure medication resistance and selected adverse drug events to valproate, levetiracetam and lamotrigine. Based on our analysis, a simplified set of diagnostic criteria for juvenile myoclonic epilepsy includes the following: (i) myoclonic jerks as mandatory seizure type; (ii) a circadian timing for myoclonia not mandatory for the diagnosis of juvenile myoclonic epilepsy; (iii) age of onset ranging from 6 to 40 years; (iv) generalized EEG abnormalities; and (v) intelligence conforming to population distribution. We find sufficient evidence to propose a predictive model of antiseizure medication resistance that emphasises (i) absence seizures as the strongest stratifying factor with regard to antiseizure medication resistance or seizure freedom for both sexes and (ii) sex as a major stratifying factor, revealing elevated odds of antiseizure medication resistance that correlates to self-report of catamenial and stress-related factors including sleep deprivation. In women, there are reduced odds of antiseizure medication resistance associated with EEG-measured or self-reported photosensitivity. In conclusion, by applying a simplified set of criteria to define phenotypic variations of juvenile myoclonic epilepsy, our paper proposes an evidence-based definition and prognostic stratification of juvenile myoclonic epilepsy. Further studies in existing data sets of individual patient data would be helpful to replicate our findings, and prospective studies in inception cohorts will contribute to validate them in real-world practice for juvenile myoclonic epilepsy management.
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Affiliation(s)
- Guido Rubboli
- Danish Epilepsy Centre, Filadelfia, Dianalund 4293, Denmark
- Institute of Clinical Medicine, University of Copenhagen, Copenhagen 2200, Denmark
| | - Christoph P Beier
- Department of Neurology, Odense University Hospital, Odense 5000, Denmark
| | - Kaja K Selmer
- Department of Research and Innovation, Division of Clinical Neuroscience, Oslo University Hospital, Oslo 0372, Norway
- National Centre for Epilepsy, Oslo University Hospital, Oslo 1337, Norway
| | - Marte Syvertsen
- Department of Neurology, Drammen Hospital, Vestre Viken Health Trust, Oslo 3004, Norway
| | - Amy Shakeshaft
- Department of Basic and Clinical Neurosciences, Institute of Psychiatry, Psychology and Neuroscience, King’s College London, London SE5 8AF, UK
- MRC Centre for Neurodevelopmental Disorders, King’s College London, London SW1H 9NA, UK
| | - Amber Collingwood
- Department of Basic and Clinical Neurosciences, Institute of Psychiatry, Psychology and Neuroscience, King’s College London, London SE5 8AF, UK
| | - Anna Hall
- Department of Basic and Clinical Neurosciences, Institute of Psychiatry, Psychology and Neuroscience, King’s College London, London SE5 8AF, UK
| | - Danielle M Andrade
- Adult Epilepsy Genetics Program, Krembil Research Institute, University of Toronto, Toronto M5T 0S8, Canada
| | - Choong Yi Fong
- Division of Paediatric Neurology, Department of Pediatrics, Faculty of Medicine, University of Malaya, Kuala Lumpur 50603, Malaysia
| | - Joanna Gesche
- Department of Neurology, Odense University Hospital, Odense 5000, Denmark
| | - David A Greenberg
- Abigail Wexner Research Institute, Nationwide Children’s Hospital, Columbus 43215, USA
| | - Khalid Hamandi
- Department of Neurology, Cardiff & Vale University Health Board, Cardiff CF14 4XW, UK
| | - Kheng Seang Lim
- Division of Neurology, Department of Medicine, Faculty of Medicine, University of Malaya, Kuala Lumpur 50603, Malaysia
| | - Ching Ching Ng
- Institute of Biological Sciences, Faculty of Science, University of Malaya, Kuala Lumpur 50603, Malaysia
| | - Alessandro Orsini
- Department of Clinical and Experimental Medicine, Pisa University Hospital, Pisa 56126, Italy
| | - Pasquale Striano
- Pediatric Neurology and Muscular Disease Unit, IRCCS Istituto ‘G. Gaslini’, Genova 16147, Italy
- Department of Neurosciences, Rehabilitation, Ophthalmology, Genetics, Maternal and Child Health, University of Genova, Genova 16132, Italy
| | - Rhys H Thomas
- Newcastle upon Tyne NHS Foundation Trust, Newcastle upon Tyne NE7 7DN, UK
- Translational and Clinical Research Institute, Faculty of Medical Sciences, Newcastle University, Newcastle upon Tyne NE1 7RU, UK
| | - Jana Zarubova
- Department of Neurology, Second Faculty of Medicine, Charles University, Prague 150 06, Czech Republic
- Motol University Hospital, Prague 150 06, Czech Republic
| | - Mark P Richardson
- Department of Basic and Clinical Neurosciences, Institute of Psychiatry, Psychology and Neuroscience, King’s College London, London SE5 8AF, UK
- MRC Centre for Neurodevelopmental Disorders, King’s College London, London SW1H 9NA, UK
- School of Neuroscience, Institute of Psychiatry, Psychology and Neuroscience, King’s College, London SE5 8AF, UK
| | - Lisa J Strug
- Program in Genetics and Genome Biology, The Hospital for Sick Children, Toronto M5G 1X8, Canada
- Departments of Statistical Sciences and Computer Science and Division of Biostatistics, The University of Toronto, Toronto M5G 1Z5, Canada
| | - Deb K Pal
- Department of Basic and Clinical Neurosciences, Institute of Psychiatry, Psychology and Neuroscience, King’s College London, London SE5 8AF, UK
- MRC Centre for Neurodevelopmental Disorders, King’s College London, London SW1H 9NA, UK
- School of Neuroscience, Institute of Psychiatry, Psychology and Neuroscience, King’s College, London SE5 8AF, UK
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5
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Luisa Maia Nobre Paiva M, Serafim A, Vincentiis S, Alessi R, Marin R, Braga Melo M, Valente KD. A cognitive rehabilitation program to improve hot and cool executive dysfunction in juvenile myoclonic epilepsy: Preliminary findings. Epilepsy Behav 2023; 144:109281. [PMID: 37276803 DOI: 10.1016/j.yebeh.2023.109281] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/11/2022] [Revised: 05/20/2023] [Accepted: 05/21/2023] [Indexed: 06/07/2023]
Abstract
OBJECTIVE Executive and attentional deficits are often described in Juvenile Myoclonic Epilepsy (JME). We aimed to evaluate the short-term impact of rehabilitation developed for the most frequent cognitive deficits of persons with JME. METHODS Thirty-three patients entered this study which consisted of 12 individual sessions once a 60-minute week, divided into planning/organization, attention, and impulsivity. Twenty-seven patients finished the protocol, and all patients had pre-and-post evaluations from neuropsychological tests and self-rating questionnaires. Generalized Estimating Equations (GEE) inferential statistics were used to verify the protocol's effect, and a 95% confidence interval was adopted. RESULTS We found significant improvement in selective attention (TMT A [p < 0.01] and Stroop test 2 [p = 0.03]), inhibitory control (Stroop test 3 [p = 0.02], FAS [p < 0.01], CPT commissions [p < 0.01]), mental flexibility [WCST categories p < 0.01] and implicit decision making (IGT blocks A [p < 0.01], B [p = 0.02], C [p < 0.01] and D [p < 0.01]). All components of the Behavioral Rating Index of Executive Functions metacognition index and the general quotient had significant improvement (initiative [p ≤ 0.01], working memory [p ≤ 0.01], planning and organization [p ≤ 0.01], task monitor [p = 0.02] and organization of materials [p = 0.02]). Regarding the Behavioral Regulation Index, the "Emotional Control" was improved [p = 0.03]. The attentional component and general scores of the Adult Self-Report Scale for Adults also changed significantly [p ≤ 0.01]. SIGNIFICANCE Executive function and attention had an improvement in objective and subjective tests. The context-dependent reactive mechanism of impulsivity improved in instruments based on the ecological evaluation. Our findings, though preliminary due to a lack of controls and practice effect corrections, support that cognitive rehabilitation may be a valuable resource to alleviate cognitive deficits in patients with JME.
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Affiliation(s)
- Maria Luisa Maia Nobre Paiva
- Laboratory of Clinical Neurophysiology, Department of Psychiatry, University of São Paulo (USP) School of Medicine, São Paulo, SP, Brazil.
| | - Antônio Serafim
- Institute of Psychology, University of São Paulo, São Paulo (USP), Brazil.
| | - Silvia Vincentiis
- Laboratory of Clinical Neurophysiology, Department of Psychiatry, University of São Paulo (USP) School of Medicine, São Paulo, SP, Brazil.
| | - Ruda Alessi
- Laboratory of Clinical Neurophysiology, Department of Psychiatry, University of São Paulo (USP) School of Medicine, São Paulo, SP, Brazil.
| | - Rachel Marin
- Laboratory of Clinical Neurophysiology, Department of Psychiatry, University of São Paulo (USP) School of Medicine, São Paulo, SP, Brazil.
| | - Marcio Braga Melo
- Department of Psychobiology, Federal University of São Paulo (UNIFESP), São Paulo, SP, Brazil.
| | - Kette D Valente
- Laboratory of Clinical Neurophysiology, Department of Psychiatry, University of São Paulo (USP) School of Medicine, São Paulo, SP, Brazil.
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6
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Yam M, Glatt S, Nosatzki S, Mirelman A, Hausdorff JM, Goldstein L, Giladi N, Fahoum F, Maidan I. Limited Ability to Adjust N2 Amplitude During Dual Task Walking in People With Drug-Resistant Juvenile Myoclonic Epilepsy. Front Neurol 2022; 13:793212. [PMID: 35237227 PMCID: PMC8884027 DOI: 10.3389/fneur.2022.793212] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2021] [Accepted: 01/04/2022] [Indexed: 11/23/2022] Open
Abstract
Juvenile myoclonic epilepsy (JME) is one of the most common epileptic syndromes; it is estimated to affect 1 in 1,000 people worldwide. Most people with JME respond well to medication, but up to 30% of them are drug-resistant. To date, there are no biomarkers for drug resistance in JME, and the poor response to medications is identified in retrospect. People with JME have frontal dysfunction manifested as impaired attention and difficulties in inhibiting habitual responses and these dysfunctions are more pronounced in drug-resistant individuals. Frontal networks play an important role in walking and therefore, gait can be used to overload the neural system and expose subtle changes between people with drug-responsive and drug-resistant JME. Electroencephalogram (EEG) is a promising tool to explore neural changes during real-time functions that combine a cognitive task while walking (dual tasking, DT). This exploratory study aimed to examine the alteration in electrical brain activity during DT in people with drug-responsive and drug-resistant JME. A total of 32 subjects (14 males and 18 females) participated: 11 drug-responsive (ages: 31.50 ± 1.50) and 8 drug-resistant (27.27 ± 2.30) people with JME, and 13 healthy controls (29.46 ± 0.69). The participants underwent EEG examination during the performance of the visual Go/NoGo (vGNG) task while sitting and while walking on a treadmill. We measured latencies and amplitudes of N2 and P3 event-related potentials, and the cognitive performance was assessed by accuracy rate and response time of Go/NoGo events. The results demonstrated that healthy controls had earlier N2 and P3 latencies than both JME groups (N2: p = 0.034 and P3: p = 0.011), however, a limited ability to adjust the N2 amplitude during walking was noticeable in the drug-resistant compared to drug-responsive. The two JME groups had lower success rates (drug-responsive p < 0.001, drug-resistant p = 0.004) than healthy controls, but the drug-resistant showed longer reaction times compared to both healthy controls (p = 0.033) and drug-responsive (p = 0.013). This study provides the first evidence that people with drug-resistant JME have changes in brain activity during highly demanding tasks that combine cognitive and motor functions compared to people with drug-responsive JME. Further research is needed to determine whether these alterations can be used as biomarkers to drug response in JME.
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Affiliation(s)
- Mor Yam
- Laboratory of Early Markers of Neurodegeneration, Centre for the Study of Movement, Cognition, and Mobility, Tel Aviv Sourasky Medical Centre, Neurological Institute, Tel Aviv, Israel
- Sagol School of Neuroscience, Tel Aviv University, Tel Aviv, Israel
| | - Sigal Glatt
- Laboratory of Early Markers of Neurodegeneration, Centre for the Study of Movement, Cognition, and Mobility, Tel Aviv Sourasky Medical Centre, Neurological Institute, Tel Aviv, Israel
- Department of Neurology and Neurosurgery, Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
| | - Shai Nosatzki
- Laboratory of Early Markers of Neurodegeneration, Centre for the Study of Movement, Cognition, and Mobility, Tel Aviv Sourasky Medical Centre, Neurological Institute, Tel Aviv, Israel
| | - Anat Mirelman
- Laboratory of Early Markers of Neurodegeneration, Centre for the Study of Movement, Cognition, and Mobility, Tel Aviv Sourasky Medical Centre, Neurological Institute, Tel Aviv, Israel
- Sagol School of Neuroscience, Tel Aviv University, Tel Aviv, Israel
- Department of Neurology and Neurosurgery, Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
| | - Jeffrey M. Hausdorff
- Laboratory of Early Markers of Neurodegeneration, Centre for the Study of Movement, Cognition, and Mobility, Tel Aviv Sourasky Medical Centre, Neurological Institute, Tel Aviv, Israel
- Sagol School of Neuroscience, Tel Aviv University, Tel Aviv, Israel
- Department of Physical Therapy, Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
- Rush Alzheimer's Disease Center and Department of Orthopaedic Surgery, Rush University Medical Center, Chicago, IL, United States
| | - Lilach Goldstein
- Epilepsy Unit, Tel Aviv Sourasky Medical Centre, Neurological Institute, Tel Aviv, Israel
| | - Nir Giladi
- Laboratory of Early Markers of Neurodegeneration, Centre for the Study of Movement, Cognition, and Mobility, Tel Aviv Sourasky Medical Centre, Neurological Institute, Tel Aviv, Israel
- Sagol School of Neuroscience, Tel Aviv University, Tel Aviv, Israel
- Department of Neurology and Neurosurgery, Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
| | - Firas Fahoum
- Department of Neurology and Neurosurgery, Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
- Epilepsy Unit, Tel Aviv Sourasky Medical Centre, Neurological Institute, Tel Aviv, Israel
| | - Inbal Maidan
- Laboratory of Early Markers of Neurodegeneration, Centre for the Study of Movement, Cognition, and Mobility, Tel Aviv Sourasky Medical Centre, Neurological Institute, Tel Aviv, Israel
- Sagol School of Neuroscience, Tel Aviv University, Tel Aviv, Israel
- Department of Neurology and Neurosurgery, Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
- Epilepsy Unit, Tel Aviv Sourasky Medical Centre, Neurological Institute, Tel Aviv, Israel
- *Correspondence: Inbal Maidan
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7
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Genetic generalized epilepsies in adults - challenging assumptions and dogmas. Nat Rev Neurol 2022; 18:71-83. [PMID: 34837042 DOI: 10.1038/s41582-021-00583-9] [Citation(s) in RCA: 16] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/19/2021] [Indexed: 01/16/2023]
Abstract
Genetic generalized epilepsy (GGE) syndromes start during childhood or adolescence, and four commonly persist into adulthood, making up 15-20% of all cases of epilepsy in adults. These four GGE syndromes are childhood absence epilepsy, juvenile absence epilepsy, juvenile myoclonic epilepsy and epilepsy with generalized tonic-clonic seizures alone. However, in ~20% of patients with GGE, characteristics of more than one syndrome are present. Novel insights into the genetic aetiology, comorbidities and prognosis of the GGE syndromes have emerged and challenge traditional concepts about these conditions. Evidence has shown that the mode of inheritance in GGE is mostly polygenic. Neuropsychological and imaging studies indicate similar abnormalities in unaffected relatives of patients with GGE, supporting the concept that underlying alterations in bilateral frontothalamocortical networks are genetically determined. Contrary to popular belief, first-line anti-seizure medication often fails to provide seizure freedom in combination with good tolerability. Nevertheless, long-term follow-up studies have shown that with advancing age, many patients can discontinue their anti-seizure medication without seizure relapses. Several outcome predictors have been identified, but prognosis across the syndromes is more homogeneous than previously assumed. Overall, overlap in pathophysiology, seizure types, treatment responses and outcomes support the idea that GGEs are not separate nosological entities but represent a neurobiological continuum.
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8
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Analysis of Clinical Characteristics, Background, and Paroxysmal Activity in EEG of Patients with Juvenile Myoclonic Epilepsy. Brain Sci 2021; 12:brainsci12010029. [PMID: 35053773 PMCID: PMC8773902 DOI: 10.3390/brainsci12010029] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2021] [Revised: 12/24/2021] [Accepted: 12/25/2021] [Indexed: 11/17/2022] Open
Abstract
Juvenile myoclonic epilepsy (JME) appears in adolescence with myoclonic, absence, and generalized tonic clonic (GTC) seizures with paroxysmal activity of polyspike and slow wave (PSW), or spike and wave (SW) complexes in EEG. Our aim was to analyze the clinical characteristics, background EEG activity, and paroxysmal events in 41 patients with JME. Background EEG activity was analyzed with visual, quantitative (QEEG), and neurometric parameters. Our JME patients started with absence seizures at 11.4 ± 1.5 years old, myoclonic seizures at 13.6 ± 2.5 years, and GTC seizures at 15.1 ± 0.8 years. The seizures presented in awakening at 7:39 h with sleep deprivation, alcoholic beverage intake, and stress as the most frequent precipitant factors. Paroxysmal activity was of PSW and fast SW complexes with 40.5 ± 62.6 events/hour and a duration of 1.7 s. Right asymmetric paroxysmal activity was present in 68.3% of patients. Background EEG activity was abnormal in 31.7% of patients with visual analysis. With QEEG beta AP (absolute power) increase and AP delta decrease were the most frequent abnormalities found. Spectral analysis showed that 48.7% of patients had normal results, and 26.83% and 24.4% had higher and lower frequencies than 10.156 Hz, respectively. We concluded that, with visual analysis, background EEG activity was abnormal in a few patients and the abnormalities increased when QEEG was used.
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9
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A systematic review of resting-state and task-based fmri in juvenile myoclonic epilepsy. Brain Imaging Behav 2021; 16:1465-1494. [PMID: 34786666 DOI: 10.1007/s11682-021-00595-5] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/20/2021] [Indexed: 10/19/2022]
Abstract
Functional neuroimaging modalities have enhanced our understanding of juvenile myoclonic epilepsy (JME) underlying neural mechanisms. Due to its non-invasive, sensitive and analytical nature, functional magnetic resonance imaging (fMRI) provides valuable insights into relevant functional brain networks and their segregation and integration properties. We systematically reviewed the contribution of resting-state and task-based fMRI to the current understanding of the pathophysiology and the patterns of seizure propagation in JME Altogether, despite some discrepancies, functional findings suggest that corticothalamo-striato-cerebellar network along with default-mode network and salience network are the most affected networks in patients with JME. However, further studies are required to investigate the association between JME's main deficiencies, e.g., motor and cognitive deficiencies and fMRI findings. Moreover, simultaneous electroencephalography-fMRI (EEG-fMRI) studies indicate that alterations of these networks play a role in seizure modulation but fall short of identifying a causal relationship between altered functional properties and seizure propagation. This review highlights the complex pathophysiology of JME, which necessitates the design of more personalized diagnostic and therapeutic strategies in this group.
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10
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Mangaard S, Gesche J, Delcomyn L, Beier CP. The burden of disease of idiopathic/genetic generalized epilepsy - A nationwide online survey. Epilepsy Behav 2021; 123:108232. [PMID: 34416520 DOI: 10.1016/j.yebeh.2021.108232] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/08/2021] [Revised: 07/07/2021] [Accepted: 07/18/2021] [Indexed: 10/20/2022]
Abstract
The aim of the study was to assess the self-reported burden of disease in people with idiopathic/genetic generalized epilepsy and risk factors associated with high disease burden. We performed a nationwide online survey on epilepsy characteristics/treatment, quality of life/daily living followed by Standardized Assessment of Personality-Abbreviated Scale, Major Depression Inventory, Barratt Impulsiveness Scale (brief) and the brief Epilepsy Anxiety Survey Instrument. The survey was sent to 275 representative patients with IGE ('Funen cohort') and later publicly distributed via the Danish Epilepsy Association. The characteristics of the responders of the 'Funen cohort' (n = 119) did not differ from non-responders and previously assessed data. Out of 753 persons accessing the public survey, 167 had probable IGE. As compared to the 'Funen cohort', patients from the public survey reported similar age, time since last seizure, years with disease, seizure types, and IGE syndromes but more current and previously tried anti-seizure medications (ASMs). In both cohorts, patients had higher scores for depression, impulsivity, and personality disorders as compared to Danish normal values irrespective of seizure control or medication. Higher depression and anxiety scores but neither impulsivity nor personality disorders were associated with ongoing seizures. Overall health condition was estimated as bad by 28%. In the last four weeks, 20.4% reported limitations of activities of daily living due to epilepsy; 27.8% felt fed up because of their epilepsy. Patients with high subjective disease burden had more current ASMs, shorter time since last seizure and increased scores for depression, anxiety, impulsivity, and personality disorders. In conclusion, having IGE was associated with higher scores for impulsivity, depression, and personality disorders irrespective of seizure control and current treatment. High subjective disease burden was common and associated with ongoing seizures, absence/myoclonic seizures and high scores for impulsivity, depression, anxiety, and personality disorders.
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Affiliation(s)
- Sofie Mangaard
- Department of Neurology, Odense University Hospital, Denmark
| | - Joanna Gesche
- Department of Neurology, Odense University Hospital, Denmark
| | - Line Delcomyn
- Department of Neurology, Odense University Hospital, Denmark
| | - Christoph P Beier
- Department of Neurology, Odense University Hospital, Denmark; Department of Clinical Research, University of Southern Denmark, Denmark; OPEN, Odense Patient data Explorative Network, Odense University Hospital, Sdr. Boulevard 29, 5000 Odense, Denmark.
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11
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Sager G, Vatansever Z, Batu U, Çağ Y, Akin Y. Neuropsychiatric comorbidities in genetic/idiopathic generalized epilepsies and their effects on psychosocial outcomes. Epilepsy Behav 2021; 124:108339. [PMID: 34600282 DOI: 10.1016/j.yebeh.2021.108339] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/30/2021] [Revised: 09/08/2021] [Accepted: 09/12/2021] [Indexed: 11/18/2022]
Abstract
INTRODUCTION Idiopathic/genetic generalized epilepsy (GGE) accounts for 15-20% of all epilepsy cases. Neuropsychiatric comorbidities and disorders, such as attention-deficit hyperactivity disorder (ADHD), academic failure, and poor social competence, are present at a higher rate in patients with epilepsy compared with the general population. In this study, we aimed to determine the frequency of neuropsychiatric comorbidities in GGE subgroups, and to reveal the risk factors in the patient group with neuropsychiatric comorbidities. MATERIAL AND METHOD This hospital-based, cross-sectional study follows the Strengthening the Reporting of Observational Studies in Epidemiology (STROBE) guidelines. Patients with seizure-controlled GGE were invited to a semi-structured interview at the hospital. Variables [photosensitivity, valproic acid (VPA) resistance, timing of the neuropsychiatric comorbidities Attention deficit and hyperactivity disorder (ADHD), oppositional defiant disorder (ODD), and low academic performance), seizure control, and timing of the antiepileptic treatment] were statistically analyzed and evaluated in terms of their association with GGE subgroups [Generalized tonic-clonic seizures alone (EGTGS), juvenile myoclonic epilepsy (JME), and juvenile absence epilepsy (JAE)], RESULTS: Total 101 patients with GGE were included in the study and the mean age was 13.94 ± 1.66 years. A total of 12.9% (n = 13) of the patients had EGTGS, 49.5% (n = 50) had JME, and 37.6% (n = 38) had JAE. VPA resistance, photosensitivity, and the presence of neuropsychiatric symptoms before the starting of epilepsy were found to be risk factors in the GGE group with neuropsychiatric comorbidities compared with the group without neuropsychiatric comorbidities (p < 0.001). The subgroups of GGE did not show any relationship with psychiatric disorders, including ADHD, ODD, and low academic performance (neuropsychiatric comorbidities) (p > 0.005). No correlation was found between seizure control and decline in neuropsychiatric symptoms (p > 0.05). CONCLUSION In this study, the onset of psychiatric symptoms prior to the onset of epilepsy, photosensitivity, and VPA resistance were the most important factors affecting neuropsychiatric comorbidities. The JME, JAE, and EGTCS subgroups, early initiation of antiepileptic treatment, and seizure control were found to have no effect on poor psychosocial outcome and neuropsychiatric comorbidities.
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Affiliation(s)
- Gunes Sager
- Department of Pediatric Neurology, Kartal Dr. Lutfi Kirdar City Hospital, Istanbul, Turkey.
| | - Zeynep Vatansever
- Department of Child and Adolescent Psychiatry Dr. Lutfi Kirdar City Hospital, Istanbul, Turkey
| | - Utku Batu
- Department of Pediatrics, Van Education and Research Hospital, Van, Turkey
| | - Yakup Çağ
- Department of Pediatrics, Kartal Dr. Lutfi Kirdar City Hospital, Istanbul, Turkey
| | - Yasemin Akin
- Department of Pediatrics, Kartal Dr. Lutfi Kirdar City Hospital, Istanbul, Turkey
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12
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Pietrafusa N, La Neve A, de Palma L, Boero G, Luisi C, Vigevano F, Specchio N. Juvenile myoclonic epilepsy: Long-term prognosis and risk factors. Brain Dev 2021; 43:688-697. [PMID: 33781581 DOI: 10.1016/j.braindev.2021.02.005] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/28/2020] [Revised: 02/24/2021] [Accepted: 02/28/2021] [Indexed: 10/21/2022]
Abstract
OBJECTIVE Our goal was to investigate the long-term clinical course of juvenile myoclonic epilepsy (JME) in a cohort of patients and to identify prognostic factors for refractoriness and seizure relapse after anti-seizure medications (ASMs) withdrawal. A literature review is also presented to consolidate and compare our findings with the previously reported cases. METHODS We retrospectively studied a series of patients diagnosed with JME with 15 years or more of evolution. We collected clinical, neurophysiological and neuroimaging data from patients who met defined inclusion and exclusion criteria. RESULTS Study involved 61 patients (65.5% female) with mean age at study of 37.6 years, and mean age at its outset of 14.8 years. Median follow-up was 31.0 years (mean 28.9, range 15-53). They presented more frequently with a combination of myoclonic and generalized tonic-clonic seizures (GTCS) (65.6%). Sixty-five percent of patients (n = 40) had a 5-year terminal remission with a mean age at last seizure of 27.4 years. Thirty-two percent of seizure-free patients (n = 13) withdrew ASMs: 6 out of 13 had a recurrence of the seizures while 7 remained seizure-free (mean age at ASMs withdrawal 21.0 versus 35.7 years, p < 0.05). In the multivariate model, a high GTCS frequency at onset (p = 0.026) was a prognostic factor of drug resistance. CONCLUSION JME is often regarded as a benign epileptic syndrome, although a quarter of the individuals have refractory epilepsy. The possibility of withdrawing ASMs in patients who have been free of seizures over an extended time seems feasible.
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Affiliation(s)
- Nicola Pietrafusa
- Department of Neurological Sciences, Bambino Gesù Children's Hospital, IRCCS, Full Member of European Reference Network on Rare and Complex Epilepsies EpiCARE, Rome, Italy
| | - Angela La Neve
- Department of Basic Medical Sciences, Neuroscience and Sense Organs, University of Bari "Aldo Moro", Piazza Giulio Cesare 11, Bari 70124, Italy
| | - Luca de Palma
- Department of Neurological Sciences, Bambino Gesù Children's Hospital, IRCCS, Full Member of European Reference Network on Rare and Complex Epilepsies EpiCARE, Rome, Italy
| | - Giovanni Boero
- Complex Structure of Neurology, SS. Annunziata Hospital, Taranto, Italy
| | | | - Federico Vigevano
- Department of Neurological Sciences, Bambino Gesù Children's Hospital, IRCCS, Full Member of European Reference Network on Rare and Complex Epilepsies EpiCARE, Rome, Italy
| | - Nicola Specchio
- Department of Neurological Sciences, Bambino Gesù Children's Hospital, IRCCS, Full Member of European Reference Network on Rare and Complex Epilepsies EpiCARE, Rome, Italy.
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13
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Shakeshaft A, Panjwani N, McDowall R, Crudgington H, Peña Ceballos J, Andrade DM, Beier CP, Fong CY, Gesche J, Greenberg DA, Hamandi K, Koht J, Lim KS, Orsini A, Rees MI, Rubboli G, Selmer KK, Smith AB, Striano P, Syvertsen M, Talvik I, Thomas RH, Zarubova J, Richardson MP, Strug LJ, Pal DK. Trait impulsivity in Juvenile Myoclonic Epilepsy. Ann Clin Transl Neurol 2020; 8:138-152. [PMID: 33264519 PMCID: PMC7818143 DOI: 10.1002/acn3.51255] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2020] [Accepted: 11/03/2020] [Indexed: 01/22/2023] Open
Abstract
Objective Impulsivity is a multidimensional construct that can predispose to psychopathology. Meta‐analysis demonstrates an association between response impulsivity and Juvenile Myoclonic Epilepsy (JME), a common genetic generalized epilepsy. Here, we test the hypotheses that trait impulsivity is (i) elevated in JME compared to controls; (ii) moderated by specific seizure characteristics; and (iii) associated with psychiatric adverse effects of antiepileptic drugs (AEDs). Methods 322 participants with JME and 126 age and gender‐matched controls completed the Barratt’s Impulsiveness Scale (BIS‐brief) alongside information on seizure history and AED use. We compared group BIS‐brief scores and assessed associations of JME BIS‐brief scores with seizure characteristics and AED adverse effects. Results The mean BIS‐brief score in JME was 18.1 ± 4.4 compared with 16.2 ± 4.1 in controls (P = 0.0007). Elevated impulsivity was associated with male gender (P = 0.027), frequent absence seizures (P = 0.0004) and lack of morning predominance of myoclonus (P = 0.008). High impulsivity significantly increased the odds of a psychiatric adverse event on levetiracetam (P = 0.036), but not any other psychiatric or somatic adverse effects. Interpretation Trait impulsivity is elevated in JME and comparable to scores in personality and neurotic disorders. Increased seizure frequency and absence of circadian seizure pattern moderate BIS score, suggesting disruption of both cortico‐striatal and thalamocortical networks as a shared mechanism between seizures and impulsivity in JME. These findings warrant consideration of impulsivity as a distinct target of intervention, and as a stratifying factor for AED treatment in JME, and perhaps other types of epilepsy. The role of impulsivity in treatment adherence and psychosocial outcome requires further investigation.
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Affiliation(s)
- Amy Shakeshaft
- Department of Basic & Clinical Neurosciences, Institute of Psychiatry, Psychology & Neuroscience, King's College London, UK.,MRC Centre for Neurodevelopmental Disorders, King's College London, UK
| | | | - Robert McDowall
- Department of Basic & Clinical Neurosciences, Institute of Psychiatry, Psychology & Neuroscience, King's College London, UK
| | - Holly Crudgington
- Department of Basic & Clinical Neurosciences, Institute of Psychiatry, Psychology & Neuroscience, King's College London, UK
| | - Javier Peña Ceballos
- Department of Basic & Clinical Neurosciences, Institute of Psychiatry, Psychology & Neuroscience, King's College London, UK
| | | | | | - Choong Yi Fong
- Division of Paediatric Neurology, Department of Paediatrics, Faculty of Medicine, University of Malaya, Kuala Lumpur, Malaysia
| | | | | | | | - Jeanette Koht
- Department of Neurology, Drammen Hospital, Vestre Viken Health Trust, Oslo, Norway.,University of Oslo, Oslo, Norway
| | - Kheng Seang Lim
- Division of Neurology, Department of Medicine, Faculty of Medicine, University of Malaya, Kuala Lumpur, Malaysia
| | - Alessandro Orsini
- Department of Clinical & Experimental Medicine, Pisa University Hospital, Italy
| | - Mark I Rees
- Neurology Research Group, Swansea University Medical School, UK
| | - Guido Rubboli
- Danish Epilepsy Centre, Dianalund, Denmark.,University of Copenhagen, Denmark
| | - Kaja K Selmer
- Department of Research and Innovation, Division of Clinical Neuroscience, Oslo University Hospital, Norway.,National Centre for Epilepsy, Oslo University Hospital, Norway
| | - Anna B Smith
- Department of Basic & Clinical Neurosciences, Institute of Psychiatry, Psychology & Neuroscience, King's College London, UK
| | - Pasquale Striano
- IRCCS Istituto 'G. Gaslini', Genova, Italy.,University of Genova, Genova, Italy
| | - Marte Syvertsen
- Department of Neurology, Drammen Hospital, Vestre Viken Health Trust, Oslo, Norway
| | | | - Rhys H Thomas
- Newcastle upon Tyne NHS Foundation Trust, Newcastle, UK
| | - Jana Zarubova
- Department of Neurology, Motol University Hospital, Prague, Czech Republic.,Second Faculty of Medicine, Charles University, Prague, Czech Republic
| | - Mark P Richardson
- Department of Basic & Clinical Neurosciences, Institute of Psychiatry, Psychology & Neuroscience, King's College London, UK.,MRC Centre for Neurodevelopmental Disorders, King's College London, UK.,King's College Hospital, London, UK
| | | | - Deb K Pal
- Department of Basic & Clinical Neurosciences, Institute of Psychiatry, Psychology & Neuroscience, King's College London, UK.,MRC Centre for Neurodevelopmental Disorders, King's College London, UK.,King's College Hospital, London, UK.,Evelina London Children's Hospital, London, UK
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14
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Syvertsen M, Koht J, Selmer K, Enger U, Pal DK, Smith A. Trait impulsivity correlates with active myoclonic seizures in genetic generalized epilepsy. Epilepsy Behav 2020; 112:107260. [PMID: 32745958 DOI: 10.1016/j.yebeh.2020.107260] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/01/2020] [Revised: 06/12/2020] [Accepted: 06/12/2020] [Indexed: 12/13/2022]
Abstract
BACKGROUND Juvenile myoclonic epilepsy (JME) is a common subtype of genetic generalized epilepsy (GGE) arising in adolescence and is often associated with executive function (EF) deficits. Some EF components like response inhibition have been extensively evaluated in JME, but few studies have focused upon trait impulsivity or compared between GGE subtypes. The aim of the present study was to compare the association of trait impulsivity in JME with other GGE subtypes. METHODS Patients with GGE aged between 14 and 40 years (n = 137) were divided into those with JME (n = 92) and those with other GGEs (n = 45: 8 childhood absence epilepsy (CAE), 22 juvenile absence epilepsy (JAE), and 15 epilepsy with generalized tonic-clonic seizures only (EGTCS)). The study participants were recruited through medical records of the general population of Buskerud County and the neighboring municipalities, covering 477,000 people or 9.1% of Norway's total population. All participants underwent a clinical interview including the Barratt Impulsiveness Scale (BIS), an established measure of trait impulsivity. We controlled for other potential predictors of BIS score using analysis of covariance (ANCOVA). RESULTS There were no differences between JME and other types of GGE for BIS scores, but the presence of myoclonic seizures within the last year, irrespective of GGE subtype, was independently associated with significantly increased behavioral impulsivity. CONCLUSIONS This study demonstrates that trait impulsivity in GGE is most strongly related to the recent occurrence of myoclonic seizures rather than GGE subtype.
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Affiliation(s)
- Marte Syvertsen
- Department of Neurology, Drammen Hospital, Vestre Viken Hospital Trust, Norway; Institute of Clinical Medicine, University of Oslo, Oslo, Norway
| | - Jeanette Koht
- Department of Neurology, Drammen Hospital, Vestre Viken Hospital Trust, Norway; Institute of Clinical Medicine, University of Oslo, Oslo, Norway
| | - Kaja Selmer
- Division of Clinical Neuroscience, Department of Research and Innovation, Oslo University Hospital, Oslo, Norway; National Center for Epilepsy, Oslo University Hospital, Sandvika, Norway
| | - Ulla Enger
- Department of Neurology, Drammen Hospital, Vestre Viken Hospital Trust, Norway
| | - Deb K Pal
- Department of Basic and Clinical Neuroscience, Institute of Psychiatry, Psychology & Neuroscience, King's College London, London, United Kingdom; MRC Centre for Neurodevelopmental Disorders, King's College London, London, United Kingdom; King's College Hospital, London, United Kingdom; Evelina London Children's Hospital, London, United Kingdom.
| | - Anna Smith
- Department of Basic and Clinical Neuroscience, Institute of Psychiatry, Psychology & Neuroscience, King's College London, London, United Kingdom; MRC Centre for Neurodevelopmental Disorders, King's College London, London, United Kingdom; King's College Hospital, London, United Kingdom; Evelina London Children's Hospital, London, United Kingdom
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15
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Abstract
PURPOSE OF REVIEW Psychiatric comorbidities are close to 5-times higher in children and youth with epilepsy (CYE) compared to general population. With epilepsy being one of the most common neurological disorders in children, we provide a timely review of psychiatric issues in CYE. RECENT FINDINGS A meta-analysis found a pooled prevalence of anxiety in 18.9% and depression in 13.5% of CYE. Attention deficit hyperactivity disorder (ADHD) is 2.5 to 5.5 times higher in CYE compared to healthy counterparts. Recent evidence highlights that behavioral adverse effects may lead to discontinuation of anti-epileptic drugs (AEDs) in more than 10% of CYE. Up to 70% CYE shows elevation in baseline psychological symptoms after AED initiation. Identifying psychiatric symptoms can be easily accomplished by the routine use of psychiatric screening instruments in CYE clinics, which is associated with improved health-related quality of life (HRQOL). Psychoeducation is a key component for any visit with CYE. There is some evidence of the effectiveness of behavioral psychological interventions for CYE. There are no therapeutic trials of psychotropics in CYE, but treatment recommendations based on the experience in adults with epilepsy and general population are applicable. Early diagnosis and management of psychiatric comorbidities leads to improvement in HRQOL of CYE. This requires routine screening and a multidisciplinary teamwork.
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Affiliation(s)
- Anjali Dagar
- Department of Psychiatry and Epilepsy, Cleveland Clinic Lerner College of Medicine, 9500 Euclid Avenue, P57, Cleveland Clinic, Cleveland, OH, 44195, USA
| | - Tatiana Falcone
- Department of Psychiatry and Epilepsy, Cleveland Clinic Lerner College of Medicine, 9500 Euclid Avenue, P57, Cleveland Clinic, Cleveland, OH, 44195, USA.
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16
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Smith A, Syvertsen M, Pal DK. Meta-analysis of response inhibition in juvenile myoclonic epilepsy. Epilepsy Behav 2020; 106:107038. [PMID: 32240946 DOI: 10.1016/j.yebeh.2020.107038] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/12/2019] [Revised: 02/20/2020] [Accepted: 03/08/2020] [Indexed: 02/01/2023]
Abstract
BACKGROUND Patients with juvenile myoclonic epilepsy (JME) show evidence of cognitive impulsivity that may be linked to later adverse psychosocial outcomes. Here, we quantify the strength of association and estimate effect size (ES) of response inhibition by pooling available evidence in a meta-analysis. METHODS We conducted a systematic review of the literature using Ovid MEDLINE and Ovid EMBASE databases (covering 2001-2019) with a search strategy using combinations of the specific Medical Subject Headings (MeSH) terms 'juvenile myoclonic epilepsy, cognitive impulsivity, response inhibition, Stroop, cognition, personality, traits' using the 'explode' feature where possible. We also searched within references of retrieved articles. We included studies reporting ESs describing established measures of response inhibition in teenage and adult patients with JME. RESULTS Using the ESs pooled from 16 studies comprising 1047 patients and controls, we found ESs for response inhibition to be homogeneous with a significant moderate mean ES of d = 0.50 (95% confidence interval [CI]: 0.37-0.63). CONCLUSIONS We confirm that reduced response inhibition is a consistently observed homogeneous trait in patients with JME.
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Affiliation(s)
- Anna Smith
- Department of Basic and Clinical Neuroscience, Institute of Psychiatry, Psychology & Neuroscience, King's College London, London, United Kingdom
| | - Marte Syvertsen
- Department of Neurology, Drammen Hospital, Vestre Viken Hospital Trust, Drammen, Norway; Institute of Clinical Medicine, University of Oslo, Oslo, Norway
| | - Deb K Pal
- Department of Basic and Clinical Neuroscience, Institute of Psychiatry, Psychology & Neuroscience, King's College London, London, United Kingdom; MRC Centre for Neurodevelopmental Disorders, King's College London, London, United Kingdom; King's College Hospital, London, United Kingdom; Evelina London Children's Hospital, London, United Kingdom.
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17
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McCarthy E, Shakil F, Saint Ange P, Morris Cameron E, Miller J, Pathak S, Greenberg DA, Velíšková J, Velíšek L. Developmental decrease in parvalbumin-positive neurons precedes increase in flurothyl-induced seizure susceptibility in the Brd2 +/- mouse model of juvenile myoclonic epilepsy. Epilepsia 2020; 61:892-902. [PMID: 32301507 DOI: 10.1111/epi.16499] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2019] [Revised: 03/02/2020] [Accepted: 03/18/2020] [Indexed: 11/27/2022]
Abstract
OBJECTIVE BRD2 is a human gene repeatedly linked to and associated with juvenile myoclonic epilepsy (JME). Here, we define the developmental stage when increased seizure susceptibility first manifests in heterozygous Brd2+/- mice, an animal model of JME. We wanted to determine (1) whether seizure susceptibility correlates with the proven decrease of γ-aminobutyric acidergic (GABAergic) neuron numbers and (2) whether the seizure phenotype can be affected by sex hormones. METHODS Heterozygous (Brd2+/-) and wild-type (wt) mice of both sexes were tested for flurothyl-induced seizure susceptibility at postnatal day 15 (P15; wt, n = 13; Brd2+/-, n = 20), at P30 (wt, n = 20; Brd2+/-, n = 20), and in adulthood (5-6 months of age; wt, n = 10; Brd2+/-, n = 12). We measured latency to clonic and tonic-clonic seizure onset (flurothyl threshold). We also compared relative density of parvalbumin-positive (PVA+) and GAD67+ GABA neurons in the striatum and primary motor (M1) neocortex of P15 (n = 6-13 mice per subgroup) and P30 (n = 7-10 mice per subgroup) mice. Additional neonatal Brd2+/- mice were injected with testosterone propionate (females) or formestane (males) and challenged with flurothyl at P30. RESULTS P15 Brd2+/- mice showed no difference in seizure susceptibility compared to P15 wt mice. However, even at this early age, Brd2+/- mice showed fewer PVA+ neurons in the striatum and M1 neocortex. Compared to wt, the striatum in Brd2+/- mice showed an increased proportion of immature PVA+ neurons, with smaller cell bodies and limited dendritic arborization. P30 Brd2+/- mice displayed increased susceptibility to flurothyl-induced clonic seizures compared to wt. Both genotype and sex strongly influenced the density of PVA+ neurons in the striatum. Susceptibility to clonic seizures remained increased in adult Brd2+/- mice, and additionally there was increased susceptibility to tonic-clonic seizures. In P30 females, neonatal testosterone reduced the number of flurothyl-induced clonic seizures. SIGNIFICANCE A decrease in striatal PVA+ GABAergic neurons developmentally precedes the onset of increased seizure susceptibility and likely contributes to the expression of the syndrome.
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Affiliation(s)
- Emily McCarthy
- Department of Cell Biology and Anatomy, New York Medical College, Valhalla, New York
| | - Faariah Shakil
- Department of Cell Biology and Anatomy, New York Medical College, Valhalla, New York
| | - Patrick Saint Ange
- Department of Cell Biology and Anatomy, New York Medical College, Valhalla, New York
| | - Emily Morris Cameron
- Department of Pediatrics, Wexner Medical Center, Ohio State University and Battelle Center for Mathematical Medicine, Nationwide Children's Hospital, Columbus, Ohio
| | - James Miller
- Department of Pediatrics, Wexner Medical Center, Ohio State University and Battelle Center for Mathematical Medicine, Nationwide Children's Hospital, Columbus, Ohio
| | - Shilpa Pathak
- Department of Pediatrics, Wexner Medical Center, Ohio State University and Battelle Center for Mathematical Medicine, Nationwide Children's Hospital, Columbus, Ohio
| | - David A Greenberg
- Department of Pediatrics, Wexner Medical Center, Ohio State University and Battelle Center for Mathematical Medicine, Nationwide Children's Hospital, Columbus, Ohio
| | - Jana Velíšková
- Department of Cell Biology and Anatomy, New York Medical College, Valhalla, New York.,Department of Obstetrics & Gynecology, New York Medical College, Valhalla, New York.,Department of Neurology, New York Medical College, Valhalla, New York
| | - Libor Velíšek
- Department of Cell Biology and Anatomy, New York Medical College, Valhalla, New York.,Department of Neurology, New York Medical College, Valhalla, New York.,Department of Pediatrics, New York Medical College, Valhalla, New York
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18
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Krämer G. Zur Geschichte des Janz-Syndroms (juvenile myoklonische Epilepsie). ZEITSCHRIFT FÜR EPILEPTOLOGIE 2020. [DOI: 10.1007/s10309-020-00319-7] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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19
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Verducci C, Friedman D, Donner E, Devinsky O. Genetic generalized and focal epilepsy prevalence in the North American SUDEP Registry. Neurology 2020; 94:e1757-e1763. [PMID: 32217773 PMCID: PMC7282874 DOI: 10.1212/wnl.0000000000009295] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2019] [Accepted: 11/18/2019] [Indexed: 11/15/2022] Open
Abstract
Objective To assess relative rates and clinical features of patients with genetic generalized epilepsy (GGE), focal epilepsy (FE), and developmental encephalopathic epilepsy (DEE) in the North American SUDEP Registry (NASR). Methods We identified all adjudicated definite, definite plus, and probable sudden unexpected death in epilepsy (SUDEP) cases (n = 262) and determined epilepsy type (GGE, FE, or DEE) from medical record review including history, imaging and EEG results, genetics, and next-of-kin interviews. Results Of the 262 SUDEP cases, 41 occurred in GGE, 95 in FE, 24 in DEE, and 102 were unclassifiable. GGE cases comprised 26% of NASR cases with an epilepsy syndrome diagnosis. The relative frequency of FE:GGE was slightly lower (2.3:1) than in population cohorts (2.1–6:1). Compared to patients with FE, patients with GGE had similar (1) ages at death and epilepsy onset and rates of (2) terminal and historical antiseizure medication adherence; (3) abnormal cardiac pathology; (4) illicit drug/alcohol use histories; and (5) sleep state when SUDEP occurred. Conclusions GGE cases were relatively overrepresented in NASR. Because GGEs are less often treatment-resistant than FE or DEE, seizure type rather than frequency may be critical. Many people with GGE predominantly have generalized tonic-clonic seizures (GTCS) when they have uncontrolled or breakthrough seizures, whereas patients with FE more commonly experience milder seizures. Future mechanistic SUDEP studies should assess primary and focal-to-bilateral GTCS to identify potential differences in postictal autonomic and arousal disorders and to determine the differential role that lifestyle factors have on breakthrough seizures and seizure types in GGE vs FE to effectively target SUDEP mechanisms and prevention.
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Affiliation(s)
- Chloe Verducci
- From the Comprehensive Epilepsy Center (C.V., D.F., O.D.), New York University School of Medicine, New York; and Division of Neurology (E.D.), The Hospital for Sick Children, University of Toronto, Canada
| | - Daniel Friedman
- From the Comprehensive Epilepsy Center (C.V., D.F., O.D.), New York University School of Medicine, New York; and Division of Neurology (E.D.), The Hospital for Sick Children, University of Toronto, Canada
| | - Elizabeth Donner
- From the Comprehensive Epilepsy Center (C.V., D.F., O.D.), New York University School of Medicine, New York; and Division of Neurology (E.D.), The Hospital for Sick Children, University of Toronto, Canada
| | - Orrin Devinsky
- From the Comprehensive Epilepsy Center (C.V., D.F., O.D.), New York University School of Medicine, New York; and Division of Neurology (E.D.), The Hospital for Sick Children, University of Toronto, Canada.
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20
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Ratcliffe C, Wandschneider B, Baxendale S, Thompson P, Koepp MJ, Caciagli L. Cognitive Function in Genetic Generalized Epilepsies: Insights From Neuropsychology and Neuroimaging. Front Neurol 2020; 11:144. [PMID: 32210904 PMCID: PMC7076110 DOI: 10.3389/fneur.2020.00144] [Citation(s) in RCA: 36] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2019] [Accepted: 02/10/2020] [Indexed: 12/17/2022] Open
Abstract
Genetic generalized epilepsies (GGE), previously called idiopathic generalized epilepsies, constitute about 20% of all epilepsies, and include childhood absence epilepsy, juvenile absence epilepsy, juvenile myoclonic epilepsy, and epilepsy with generalized tonic-clonic seizures alone (CAE, JAE, JME, and GGE-GTCS, respectively). GGE are characterized by high heritability, likely underlain by polygenetic mechanisms, which may relate to atypical neurodevelopmental trajectories. Age of onset ranges from pre-school years, for CAE, to early adulthood for GGE-GTCS. Traditionally, GGE have been considered benign, a belief contrary to evidence from neuropsychology studies conducted over the last two decades. In JME, deficits in executive and social functioning are common findings and relate to impaired frontal lobe function. Studies using neuropsychological measures and cognitive imaging paradigms provide evidence for hyperconnectivity between prefrontal and motor cortices, aberrant fronto-thalamo-cortical connectivity, and reduced fronto-cortical and subcortical gray matter volumes, which are associated with altered cognitive performance. Recent research has also identified associations between abnormal hippocampal morphometry and fronto-temporal activation during episodic memory. Longitudinal studies on individuals with newly diagnosed JME have observed cortical dysmaturation, which is paralleled by delayed cognitive development compared to the patients' peers. Comorbidities and cognitive deficits observed in other GGE subtypes, such as visuo-spatial and language deficits in both CAE and JAE, have also been correlated with atypical neurodevelopment. Although it remains unclear whether cognitive impairment profiles differ amongst GGE subtypes, effects may become more pronounced with disease duration, particularly in absence epilepsies. Finally, there is substantial evidence that patients with JME and their unaffected siblings share patterns of cognitive deficits, which is indicative of an underlying genetic etiology (endophenotype), independent of seizures and anti-epileptic medication.
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Affiliation(s)
- Corey Ratcliffe
- Department of Clinical and Experimental Epilepsy, UCL Queen Square Institute of Neurology, London, United Kingdom
- MRI Unit, Epilepsy Society, Chalfont St Peter, Buckinghamshire, United Kingdom
| | - Britta Wandschneider
- Department of Clinical and Experimental Epilepsy, UCL Queen Square Institute of Neurology, London, United Kingdom
- MRI Unit, Epilepsy Society, Chalfont St Peter, Buckinghamshire, United Kingdom
| | - Sallie Baxendale
- Department of Clinical and Experimental Epilepsy, UCL Queen Square Institute of Neurology, London, United Kingdom
- MRI Unit, Epilepsy Society, Chalfont St Peter, Buckinghamshire, United Kingdom
| | - Pamela Thompson
- Department of Clinical and Experimental Epilepsy, UCL Queen Square Institute of Neurology, London, United Kingdom
- MRI Unit, Epilepsy Society, Chalfont St Peter, Buckinghamshire, United Kingdom
| | - Matthias J. Koepp
- Department of Clinical and Experimental Epilepsy, UCL Queen Square Institute of Neurology, London, United Kingdom
- MRI Unit, Epilepsy Society, Chalfont St Peter, Buckinghamshire, United Kingdom
| | - Lorenzo Caciagli
- Department of Clinical and Experimental Epilepsy, UCL Queen Square Institute of Neurology, London, United Kingdom
- MRI Unit, Epilepsy Society, Chalfont St Peter, Buckinghamshire, United Kingdom
- Department of Bioengineering, University of Pennsylvania, Philadelphia, PA, United States
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21
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Almane DN, Jones JE, McMillan T, Stafstrom CE, Hsu DA, Seidenberg M, Hermann BP, Oyegbile TO. The Timing, Nature, and Range of Neurobehavioral Comorbidities in Juvenile Myoclonic Epilepsy. Pediatr Neurol 2019; 101:47-52. [PMID: 31122836 PMCID: PMC6752993 DOI: 10.1016/j.pediatrneurol.2019.03.011] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/14/2019] [Revised: 03/05/2019] [Accepted: 03/10/2019] [Indexed: 11/26/2022]
Abstract
BACKGROUND Accumulating evidence suggests that considerable cognitive and psychiatric comorbidity is associated with juvenile myoclonic epilepsy, for which the etiology remains controversial. Our goal was to comprehensively characterize the status of multiple neurobehavioral comorbidities in youth with new- or recent-onset juvenile myoclonic epilepsy, before effects of chronic seizures and medications. METHODS A total of 111 children aged eight to 18 years (41 new- or recent-onset juvenile myoclonic epilepsy and 70 first-degree cousin controls) underwent neuropsychological assessment (attention, executive, verbal, perceptual, speed), structured review of need for supportive academic services, parent reports of behavior and executive function (Child Behavior Checklist and Behavior Rating Inventory of Executive Function), and formal structured psychiatric interview and diagnosis (Kiddie Schedule for Affective Disorders and Schizophrenia-Present and Lifetime Version). RESULTS Children with juvenile myoclonic epilepsy performed worse than controls across all tested cognitive domains (F(1,105) = 3.85, P < 0.01), utilized more academic services (47% versus 19%, P = 0.002), had more parent-reported behavioral problems and dysexecutive function with lower competence (P < 0.001), and had a higher prevalence of current Axis I diagnoses (attention-deficit/hyperactivity disorder, depression, and anxiety; 54% versus 23%, P = 0.001). Academic and psychiatric problems occurred antecedent to epilepsy onset compared with comparable timeline in controls. CONCLUSION Comprehensive assessment of cognitive, academic, behavioral, and psychiatric comorbidities in youth with new- or recent-onset juvenile myoclonic epilepsy reveals a pattern of significantly increased neurobehavioral comorbidities across a broad spectrum of areas. These early evident comorbidities are of clear clinical importance with worrisome implications for future cognitive, behavioral, and social function. It is important for health care providers to avoid delays in intervention by assessing potential comorbidities early in the course of the disorder to optimize their patients' social, academic and behavioral progress.
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Affiliation(s)
- Dace N Almane
- Department of Neurology, University of Wisconsin School of Medicine and Public Health, Madison Wisconsin
| | - Jana E Jones
- Department of Neurology, University of Wisconsin School of Medicine and Public Health, Madison Wisconsin
| | - Taylor McMillan
- Department of Neurology, University of Wisconsin School of Medicine and Public Health, Madison Wisconsin
| | - Carl E Stafstrom
- Department of Neurology, Johns Hopkins School of Medicine, Baltimore Maryland
| | - David A Hsu
- Department of Neurology, University of Wisconsin School of Medicine and Public Health, Madison Wisconsin
| | | | - Bruce P Hermann
- Department of Neurology, University of Wisconsin School of Medicine and Public Health, Madison Wisconsin
| | - Temitayo O Oyegbile
- Department of Pediatrics and Neurology, Georgetown University, Washington District of Columbia.
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22
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Paiva ML, Rzezak P, Santos B, Lima EM, Moschetta SP, Vincentiis S, Alessi R, Mendoza M, Valente KD. Dissociation between decision making under ambiguity and risk in patients with juvenile myoclonic epilepsy. Epilepsy Behav 2019; 101:106548. [PMID: 31678809 DOI: 10.1016/j.yebeh.2019.106548] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/11/2019] [Revised: 09/05/2019] [Accepted: 09/06/2019] [Indexed: 11/15/2022]
Abstract
INTRODUCTION Decision making (DM) is one aspect of impulsivity that can be defined by the ability to decide between two or more options in a given situation. To date, there are at least two types of DM that differ in the level of uncertainty, and how much information about consequences is provided. In this study, we aimed to evaluate the two domains of DM - under risk and ambiguous - with a comprehensive evaluation in a group of patients with juvenile myoclonic epilepsy (JME), and correlate with patients' characteristics, clinical variables, and neuropsychological evaluation for executive functions. METHODS We evaluated 35 patients with JME and 39 healthy controls using the Iowa Gambling Task for DM under ambiguity and the Game Dice Task for DM under risk. We assessed the performance in Iowa Gambling Task and Game Dice Task through net scores, safe and risky choices, besides the type of decisions across time. RESULTS Patients with JME had a higher number of risky choices compared to controls in the Game Dice Task. There was no significant difference between patients and controls in the Iowa Gambling Task. However, patients with higher seizure frequency had worse scores on decks C and D (safe choices) from the Iowa Gambling Task. CONCLUSION Patients with JME have worse performance on DM under risk. The same was not observed for DM under ambiguity. Epilepsy-related factors and the presence of psychiatric disorders, but not executive dysfunction, were associated with a lower tendency for safe choices. These findings showed a dissociation between DM processes in patients with JME and a tendency to make disadvantageous decisions with measurable risks.
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Affiliation(s)
- Maria L Paiva
- Laboratory of Clinical Neurophysiology, Department of Psychiatry, Hospital das Clínicas da Faculdade de Medicina da Universidade de São Paulo (HCFMUSP), São Paulo, SP, Brazil
| | - Patricia Rzezak
- Laboratory of Clinical Neurophysiology, Department of Psychiatry, Hospital das Clínicas da Faculdade de Medicina da Universidade de São Paulo (HCFMUSP), São Paulo, SP, Brazil
| | - Bernardo Santos
- Laboratory of Clinical Neurophysiology, Department of Psychiatry, Hospital das Clínicas da Faculdade de Medicina da Universidade de São Paulo (HCFMUSP), São Paulo, SP, Brazil
| | - Ellen M Lima
- Laboratory of Clinical Neurophysiology, Department of Psychiatry, Hospital das Clínicas da Faculdade de Medicina da Universidade de São Paulo (HCFMUSP), São Paulo, SP, Brazil
| | - Sylvie P Moschetta
- Laboratory of Clinical Neurophysiology, Department of Psychiatry, Hospital das Clínicas da Faculdade de Medicina da Universidade de São Paulo (HCFMUSP), São Paulo, SP, Brazil
| | - Silvia Vincentiis
- Laboratory of Clinical Neurophysiology, Department of Psychiatry, Hospital das Clínicas da Faculdade de Medicina da Universidade de São Paulo (HCFMUSP), São Paulo, SP, Brazil
| | - Rudá Alessi
- Laboratory of Clinical Neurophysiology, Department of Psychiatry, Hospital das Clínicas da Faculdade de Medicina da Universidade de São Paulo (HCFMUSP), São Paulo, SP, Brazil
| | - Melanie Mendoza
- Laboratory of Clinical Neurophysiology, Department of Psychiatry, Hospital das Clínicas da Faculdade de Medicina da Universidade de São Paulo (HCFMUSP), São Paulo, SP, Brazil
| | - Kette D Valente
- Laboratory of Clinical Neurophysiology, Department of Psychiatry, Hospital das Clínicas da Faculdade de Medicina da Universidade de São Paulo (HCFMUSP), São Paulo, SP, Brazil.
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Gilsoul M, Grisar T, Delgado-Escueta AV, de Nijs L, Lakaye B. Subtle Brain Developmental Abnormalities in the Pathogenesis of Juvenile Myoclonic Epilepsy. Front Cell Neurosci 2019; 13:433. [PMID: 31611775 PMCID: PMC6776584 DOI: 10.3389/fncel.2019.00433] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2019] [Accepted: 09/09/2019] [Indexed: 12/17/2022] Open
Abstract
Juvenile myoclonic epilepsy (JME), a lifelong disorder that starts during adolescence, is the most common of genetic generalized epilepsy syndromes. JME is characterized by awakening myoclonic jerks and myoclonic-tonic-clonic (m-t-c) grand mal convulsions. Unfortunately, one third of JME patients have drug refractory m-t-c convulsions and these recur in 70-80% who attempt to stop antiepileptic drugs (AEDs). Behavioral studies documented impulsivity, but also impairment of executive functions relying on organization and feedback, which points to prefrontal lobe dysfunction. Quantitative voxel-based morphometry (VBM) revealed abnormalities of gray matter (GM) volumes in cortical (frontal and parietal) and subcortical structures (thalamus, putamen, and hippocampus). Proton magnetic resonance spectroscopy (MRS) found evidence of dysfunction of thalamic neurons. White matter (WM) integrity was disrupted in corpus callosum and frontal WM tracts. Magnetic resonance imaging (MRI) further unveiled anomalies in both GM and WM structures that were already present at the time of seizure onset. Aberrant growth trajectories of brain development occurred during the first 2 years of JME diagnosis. Because of genetic origin, disease causing variants were sought, first by positional cloning, and most recently, by next generation sequencing. To date, only six genes harboring pathogenic variants (GABRA1, GABRD, EFHC1, BRD2, CASR, and ICK) with Mendelian and complex inheritance and covering a limited proportion of the world population, are considered as major susceptibility alleles for JME. Evidence on the cellular role, developmental and cell-type expression profiles of these six diverse JME genes, point to their pathogenic variants driving the first steps of brain development when cell division, expansion, axial, and tangential migration of progenitor cells (including interneuron cortical progenitors) sculpture subtle alterations in brain networks and microcircuits during development. These alterations may explain "microdysgenesis" neuropathology, impulsivity, executive dysfunctions, EEG polyspike waves, and awakening m-t-c convulsions observed in JME patients.
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Affiliation(s)
- Maxime Gilsoul
- GIGA-Stem Cells, University of Liège, Liège, Belgium
- GIGA-Neurosciences, University of Liège, Liège, Belgium
- GENESS International Consortium, Department of Neurology, David Geffen School of Medicine, University of California, Los Angeles, Los Angeles, CA, United States
| | - Thierry Grisar
- GENESS International Consortium, Department of Neurology, David Geffen School of Medicine, University of California, Los Angeles, Los Angeles, CA, United States
| | - Antonio V. Delgado-Escueta
- GENESS International Consortium, Department of Neurology, David Geffen School of Medicine, University of California, Los Angeles, Los Angeles, CA, United States
- Epilepsy Genetics/Genomics Lab, Neurology and Research Services, VA Greater Los Angeles Healthcare System, Los Angeles, CA, United States
| | - Laurence de Nijs
- GENESS International Consortium, Department of Neurology, David Geffen School of Medicine, University of California, Los Angeles, Los Angeles, CA, United States
- School for Mental Health and Neuroscience, Department of Psychiatry and Neuropsychology, Maastricht University, Maastricht, Netherlands
| | - Bernard Lakaye
- GIGA-Stem Cells, University of Liège, Liège, Belgium
- GIGA-Neurosciences, University of Liège, Liège, Belgium
- GENESS International Consortium, Department of Neurology, David Geffen School of Medicine, University of California, Los Angeles, Los Angeles, CA, United States
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24
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Wandschneider B, Hong SJ, Bernhardt BC, Fadaie F, Vollmar C, Koepp MJ, Bernasconi N, Bernasconi A. Developmental MRI markers cosegregate juvenile patients with myoclonic epilepsy and their healthy siblings. Neurology 2019; 93:e1272-e1280. [PMID: 31467252 PMCID: PMC7011863 DOI: 10.1212/wnl.0000000000008173] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2019] [Accepted: 06/07/2019] [Indexed: 12/18/2022] Open
Abstract
OBJECTIVE MRI studies of genetic generalized epilepsies have mainly described group-level changes between patients and healthy controls. To determine the endophenotypic potential of structural MRI in juvenile myoclonic epilepsy (JME), we examined MRI-based cortical morphologic markers in patients and their healthy siblings. METHODS In this prospective, cross-sectional study, we obtained 3T MRI in patients with JME, siblings, and controls. We mapped sulco-gyral complexity and surface area, morphologic markers of brain development, and cortical thickness. Furthermore, we calculated mean geodesic distance, a surrogate marker of cortico-cortical connectivity. RESULTS Compared to controls, patients and siblings showed increased folding complexity and surface area in prefrontal and cingulate cortices. In these regions, they also displayed abnormally increased geodesic distance, suggesting network isolation and decreased efficiency, with strongest effects for limbic, fronto-parietal, and dorsal-attention networks. In areas of findings overlap, we observed strong patient-sibling correlations. Conversely, neocortical thinning was present in patients only and related to disease duration. Patients showed subtle impairment in mental flexibility, a frontal lobe function test, as well as deficits in naming and design learning. Siblings' performance fell between patients and controls. CONCLUSION MRI markers of brain development and connectivity are likely heritable and may thus serve as endophenotypes. The topography of morphologic anomalies and their abnormal structural network integration likely explains cognitive impairments in patients with JME and their siblings. By contrast, cortical atrophy likely represents a marker of disease.
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Affiliation(s)
- Britta Wandschneider
- From the Neuroimaging of Epilepsy Laboratory (B.W., S.-J.H., B.C.B., F.F., N.B., A.B.), McConnell Brain Imaging Center, Montreal Neurological Institute, McGill University, Montreal; Department of Clinical and Experimental Epilepsy (B.W., C.V., M.J.K.), UCL Institute of Neurology, London, UK; Epilepsy Center, Department of Neurology (C.V.), Klinikum Großhadern, University of Munich, Germany; and Multimodal Imaging and Connectome Analysis Lab (B.C.B.), Montreal Neurological Institute and Hospital, McGill University, Montreal, Canada
| | - Seok-Jun Hong
- From the Neuroimaging of Epilepsy Laboratory (B.W., S.-J.H., B.C.B., F.F., N.B., A.B.), McConnell Brain Imaging Center, Montreal Neurological Institute, McGill University, Montreal; Department of Clinical and Experimental Epilepsy (B.W., C.V., M.J.K.), UCL Institute of Neurology, London, UK; Epilepsy Center, Department of Neurology (C.V.), Klinikum Großhadern, University of Munich, Germany; and Multimodal Imaging and Connectome Analysis Lab (B.C.B.), Montreal Neurological Institute and Hospital, McGill University, Montreal, Canada
| | - Boris C Bernhardt
- From the Neuroimaging of Epilepsy Laboratory (B.W., S.-J.H., B.C.B., F.F., N.B., A.B.), McConnell Brain Imaging Center, Montreal Neurological Institute, McGill University, Montreal; Department of Clinical and Experimental Epilepsy (B.W., C.V., M.J.K.), UCL Institute of Neurology, London, UK; Epilepsy Center, Department of Neurology (C.V.), Klinikum Großhadern, University of Munich, Germany; and Multimodal Imaging and Connectome Analysis Lab (B.C.B.), Montreal Neurological Institute and Hospital, McGill University, Montreal, Canada
| | - Fatemeh Fadaie
- From the Neuroimaging of Epilepsy Laboratory (B.W., S.-J.H., B.C.B., F.F., N.B., A.B.), McConnell Brain Imaging Center, Montreal Neurological Institute, McGill University, Montreal; Department of Clinical and Experimental Epilepsy (B.W., C.V., M.J.K.), UCL Institute of Neurology, London, UK; Epilepsy Center, Department of Neurology (C.V.), Klinikum Großhadern, University of Munich, Germany; and Multimodal Imaging and Connectome Analysis Lab (B.C.B.), Montreal Neurological Institute and Hospital, McGill University, Montreal, Canada
| | - Christian Vollmar
- From the Neuroimaging of Epilepsy Laboratory (B.W., S.-J.H., B.C.B., F.F., N.B., A.B.), McConnell Brain Imaging Center, Montreal Neurological Institute, McGill University, Montreal; Department of Clinical and Experimental Epilepsy (B.W., C.V., M.J.K.), UCL Institute of Neurology, London, UK; Epilepsy Center, Department of Neurology (C.V.), Klinikum Großhadern, University of Munich, Germany; and Multimodal Imaging and Connectome Analysis Lab (B.C.B.), Montreal Neurological Institute and Hospital, McGill University, Montreal, Canada
| | - Matthias J Koepp
- From the Neuroimaging of Epilepsy Laboratory (B.W., S.-J.H., B.C.B., F.F., N.B., A.B.), McConnell Brain Imaging Center, Montreal Neurological Institute, McGill University, Montreal; Department of Clinical and Experimental Epilepsy (B.W., C.V., M.J.K.), UCL Institute of Neurology, London, UK; Epilepsy Center, Department of Neurology (C.V.), Klinikum Großhadern, University of Munich, Germany; and Multimodal Imaging and Connectome Analysis Lab (B.C.B.), Montreal Neurological Institute and Hospital, McGill University, Montreal, Canada
| | - Neda Bernasconi
- From the Neuroimaging of Epilepsy Laboratory (B.W., S.-J.H., B.C.B., F.F., N.B., A.B.), McConnell Brain Imaging Center, Montreal Neurological Institute, McGill University, Montreal; Department of Clinical and Experimental Epilepsy (B.W., C.V., M.J.K.), UCL Institute of Neurology, London, UK; Epilepsy Center, Department of Neurology (C.V.), Klinikum Großhadern, University of Munich, Germany; and Multimodal Imaging and Connectome Analysis Lab (B.C.B.), Montreal Neurological Institute and Hospital, McGill University, Montreal, Canada.
| | - Andrea Bernasconi
- From the Neuroimaging of Epilepsy Laboratory (B.W., S.-J.H., B.C.B., F.F., N.B., A.B.), McConnell Brain Imaging Center, Montreal Neurological Institute, McGill University, Montreal; Department of Clinical and Experimental Epilepsy (B.W., C.V., M.J.K.), UCL Institute of Neurology, London, UK; Epilepsy Center, Department of Neurology (C.V.), Klinikum Großhadern, University of Munich, Germany; and Multimodal Imaging and Connectome Analysis Lab (B.C.B.), Montreal Neurological Institute and Hospital, McGill University, Montreal, Canada.
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25
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Smith AW, Mara C, Ollier S, Combs A, Modi AC. Rebellious Behaviors in Adolescents With Epilepsy. J Pediatr Psychol 2019; 43:52-60. [PMID: 28575381 DOI: 10.1093/jpepsy/jsx089] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2016] [Accepted: 05/15/2017] [Indexed: 11/14/2022] Open
Abstract
Objectives The study aims are to (1) examine the prevalence of risk-taking (i.e., behaviors that can be categorized as rebellious or reckless) and (2) determine the influence of risk-taking on adherence, seizures, and health-related quality of life (HRQOL) in adolescents with epilepsy. An exploratory aim was to identify predictors of risk-taking. Methods Fifty-four adolescents with epilepsy (M = 15.33 ± 1.46 years) and caregivers completed questionnaires on demographics, risk-taking, parent-child relations, adolescent inattention/hyperactivity, and HRQOL at four time points across 1 year. Seizure occurrence and electronically monitored adherence were also collected. Results Rebellious behaviors were normative and stable over 1 year in adolescents with epilepsy. Higher rebelliousness was related to poorer adolescent-reported memory HRQOL. The only significant positive predictor of rebellious behaviors was adolescent age. Conclusions Adolescents with epilepsy endorsed normative levels of rebelliousness, which is negatively related to HRQOL. Older adolescents may warrant clinical attention.
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Affiliation(s)
- Aimee W Smith
- Center for Treatment Adherence and Self-Management, Cincinnati Children's Hospital Medical Center
| | - Constance Mara
- Center for Treatment Adherence and Self-Management, Cincinnati Children's Hospital Medical Center
| | - Shannon Ollier
- Center for Treatment Adherence and Self-Management, Cincinnati Children's Hospital Medical Center
| | - Angela Combs
- Center for Treatment Adherence and Self-Management, Cincinnati Children's Hospital Medical Center
| | - Avani C Modi
- Center for Treatment Adherence and Self-Management, Cincinnati Children's Hospital Medical Center
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26
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Johannessen Landmark C, Fløgstad I, Syvertsen M, Baftiu A, Enger U, Koht J, Johannessen SI. Treatment and challenges with antiepileptic drugs in patients with juvenile myoclonic epilepsy. Epilepsy Behav 2019; 98:110-116. [PMID: 31330379 DOI: 10.1016/j.yebeh.2019.05.021] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/27/2019] [Revised: 05/13/2019] [Accepted: 05/17/2019] [Indexed: 12/11/2022]
Abstract
BACKGROUND Patients with juvenile myoclonic epilepsy (JME) may have uncontrolled seizures. The purpose of this study was to investigate the use and challenges with antiepileptic drugs (AEDs) and the patients' view of these challenges. METHOD A questionnaire about the use of AEDs, adherence to therapy, and quality of life was given to patients with JME recruited from Drammen Hospital. Data regarding AEDs were confirmed from medical records at Drammen Hospital, Norway (2007-2018). Additional clinical interviews were performed, and a mixed method approach was applied. RESULTS Ninety patients with defined JME diagnosis, 54/36 women/men aged 14-39 (mean: 25) years, were included. Only 29 (33%) were seizure-free. Within the last year, 21% experienced generalized tonic-clonic seizures (GTCS), and 68% had myoclonic jerks. Seventy-six (84%) used AEDs, 78% in monotherapy. A total of 10 AEDs were used;: most commonly valproate (n = 33), lamotrigine (n = 27), and levetiracetam (n = 21). Two-thirds of valproate users were men while all other AEDs were used more in females than in men. Valproate and levetiracetam displayed better efficacy against GTCS than lamotrigine. One-third often/sometimes forgot their medication nonintentionally while 14% had intentional poor adherence. The majority reported good quality of life (76%). No significant correlations between the use of AEDs, use of valproate, poor adherence, quality of life score, and seizure freedom were demonstrated. Half of the patients had serum concentrations measured every year, and two-thirds thought this was important. Qualitative interviews elucidated treatment challenges in JME;, adverse effect burden, adherence, and activities of daily life. CONCLUSION Despite the use of AEDs in the majority of patients, only one-third were seizure-free. Other challenges included polypharmacy, the use of valproate in women, and variable adherence. This points to a need for closer follow-up in patients with JME.
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Affiliation(s)
- Cecilie Johannessen Landmark
- Programme for Pharmacy, Faculty of Health Sciences, Oslo Metropolitan University, Oslo, Norway; The National Center for Epilepsy, Oslo University Hospital, Oslo, Norway; Department of Pharmacology, Section for Clinical Pharmacology, The National Center for Epilepsy, Oslo University Hospital, Oslo, Norway.
| | - Ida Fløgstad
- Programme for Pharmacy, Faculty of Health Sciences, Oslo Metropolitan University, Oslo, Norway
| | - Marte Syvertsen
- Department of Neurology, Drammen Hospital, Vestre Viken Hospital Trust, Drammen, Norway; Institute of Clinical Medicine, University of Oslo, Oslo, Norway
| | - Arton Baftiu
- The National Center for Epilepsy, Oslo University Hospital, Oslo, Norway
| | - Ulla Enger
- Department of Neurology, Drammen Hospital, Vestre Viken Hospital Trust, Drammen, Norway
| | - Jeanette Koht
- Department of Neurology, Drammen Hospital, Vestre Viken Hospital Trust, Drammen, Norway; Institute of Clinical Medicine, University of Oslo, Oslo, Norway
| | - Svein I Johannessen
- The National Center for Epilepsy, Oslo University Hospital, Oslo, Norway; Department of Pharmacology, Section for Clinical Pharmacology, The National Center for Epilepsy, Oslo University Hospital, Oslo, Norway
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Kuchukhidze G, Höfler J, Kronbichler M, Schmid E, Kirschner M, Rainer L, Kronbichler L, Gaggl J, Trinka E. Emotion recognition and social cognition in juvenile myoclonic epilepsy. ZEITSCHRIFT FÜR EPILEPTOLOGIE 2019. [DOI: 10.1007/s10309-019-0261-y] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Johannessen Landmark C, Fløgstad I, Baftiu A, Syvertsen M, Enger U, Koht J, Johannessen SI. Long-term follow-up with therapeutic drug monitoring of antiepileptic drugs in patients with juvenile myoclonic epilepsy. Epilepsy Res 2019; 155:106148. [PMID: 31195184 DOI: 10.1016/j.eplepsyres.2019.05.016] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2019] [Revised: 05/08/2019] [Accepted: 05/29/2019] [Indexed: 11/27/2022]
Abstract
BACKGROUND AND PURPOSE Patients with juvenile myoclonus epilepsy (JME) may experience uncontrolled seizures and challenges regarding adherence. Implementation of therapeutic drug monitoring (TDM) may contribute to individualization of the therapy with antiepileptic drugs (AEDs). The purpose of this study was to investigate how the treatment of patients with JME is monitored and to demonstrate pharmacokinetic variability within and between patients with a long-term TDM approach. METHOD Retrospective data from patients with JME from the TDM-database at Drammen Hospital and the National Center for Epilepsy in Norway (2007-2018) were included. RESULTS Data from 80 of 90 patients with JME using AEDs with TDM measurements was included (88%, 49/31 women/men aged 14-39). One third (27, 33%) was seizure free, 19 (24%) had generalized tonic-clonic seizures, and 53 (66%) myoclonic seizures during the last year. The most common AEDs measured included lamotrigine, valproate, and levetiracetam. Long-term TDM demonstrated variability over time expressed as intra-patient median values and inter-patient ranges of 19% (7-47) for valproate, 43% (10-83) for lamotrigine and 35% (6-111) for levetiracetam. Fifteen pecent (83/563) of serum concentrations were below the reference ranges and clould be due to variable adherence. Comedication with valproate for lamotrigine and pregnancy contributed to variability. The applicability is illustrated in a case of 10 years' follow-up in a young woman. CONCLUSION There was extensive pharmacokinetic variability of AEDs in and between patients with JME. A long-term TDM approach may contribute to closer monitoring of patients with JME and be used as a practical tool during clinical consultations.
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Affiliation(s)
- Cecilie Johannessen Landmark
- Programme for Pharmacy, Faculty of Health Sciences, Oslo Metropolitan University, Oslo, Norway; The National Center for Epilepsy, Oslo University Hospital, Oslo, Norway; Department of Pharmacology, Section for Clinical Pharmacology, The National Center for Epilepsy, Oslo University Hospital, Oslo, Norway.
| | - Ida Fløgstad
- Programme for Pharmacy, Faculty of Health Sciences, Oslo Metropolitan University, Oslo, Norway
| | - Arton Baftiu
- The National Center for Epilepsy, Oslo University Hospital, Oslo, Norway
| | - Marte Syvertsen
- Department of Neurology, Drammen Hospital, Vestre Viken Hospital Trust, Drammen, Norway; Institute of Clinical Medicine, University of Oslo, Oslo, Norway
| | - Ulla Enger
- Department of Neurology, Drammen Hospital, Vestre Viken Hospital Trust, Drammen, Norway
| | - Jeanette Koht
- Department of Neurology, Drammen Hospital, Vestre Viken Hospital Trust, Drammen, Norway; Institute of Clinical Medicine, University of Oslo, Oslo, Norway
| | - Svein I Johannessen
- The National Center for Epilepsy, Oslo University Hospital, Oslo, Norway; Department of Pharmacology, Section for Clinical Pharmacology, The National Center for Epilepsy, Oslo University Hospital, Oslo, Norway
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Garcia DDS, Polydoro MS, Alvim MKM, Ishikawa A, Moreira JCV, Nogueira MH, Zanão TA, de Campos BM, Betting LEGG, Cendes F, Yasuda CL. Anxiety and depression symptoms disrupt resting state connectivity in patients with genetic generalized epilepsies. Epilepsia 2019; 60:679-688. [PMID: 30854641 DOI: 10.1111/epi.14687] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2018] [Revised: 02/12/2019] [Accepted: 02/12/2019] [Indexed: 01/15/2023]
Abstract
OBJECTIVE To analyze the lifetime trajectories in genetic generalized epilepsies (GGEs) and investigate the impact of symptoms of anxiety and depression on resting state functional connectivity (FC). METHODS Seventy-four GGE patients were classified according to the pharmacological response as seizure-free (12 patients), pharmacoresistant (PhR; 14 patients), and fluctuating (FL; 48 patients). Fifty-four subjects completed both the Beck Depression Inventory (BDI) and Beck Anxiety Inventory (BAI), and 38 also underwent 3-T resting state functional magnetic resonance imaging. These 38 patients were subdivided into a positive group (13 patients with concurrent symptoms of depression and anxiety) and a negative group (21 asymptomatic patients and four with mild anxiety or depression symptoms). For FC analysis of resting state networks, we matched 38 healthy asymptomatic volunteers and used the UF2C toolbox running on MATLAB2017/SPM12. RESULTS The PhR group presented shorter duration of epilepsy (P = 0.016) and follow-up (P < 0.001) compared to the FL group. The PhR group showed higher levels (median = 20) on the BAI and BDI. Myoclonic seizures were the most difficult to control, as 50% of subjects persisted with them at last appointment, compared to generalized tonic-clonic seizures and absence seizures (<40%). Patients with concurrent anxiety and depression symptoms were 7.7 times more likely to exhibit pharmacoresistant seizures, although an increase of 1 year of epilepsy duration was associated with a decrease in the odds of presenting pharmacoresistance by a factor of 0.9. Overall, FC was altered between default mode network (DMN) and visuospatial/dorsal attention. However, only the positive group displayed abnormal FC between DMN and left executive control network, and between salience and visuospatial/dorsal attention. SIGNIFICANCE Our findings may help clinicians to have a better understanding of GGE clinical course and increase attention to the potential relationship of psychopathologies and brain connectivity.
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Affiliation(s)
| | | | - Marina Kutsodontis Machado Alvim
- Laboratory of Neuroimaging, University of Campinas, Campinas, Brazil.,Department of Neurology, University of Campinas, Campinas, Brazil
| | - Akari Ishikawa
- Laboratory of Neuroimaging, University of Campinas, Campinas, Brazil
| | | | | | | | | | | | - Fernando Cendes
- Laboratory of Neuroimaging, University of Campinas, Campinas, Brazil.,Department of Neurology, University of Campinas, Campinas, Brazil
| | - Clarissa L Yasuda
- Laboratory of Neuroimaging, University of Campinas, Campinas, Brazil.,Department of Neurology, University of Campinas, Campinas, Brazil
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Syvertsen M, Fløgstad I, Enger U, Landmark CJ, Koht J. Antiepileptic drug withdrawal in juvenile myoclonic epilepsy. Acta Neurol Scand 2019; 139:192-198. [PMID: 30378684 DOI: 10.1111/ane.13042] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2018] [Revised: 10/08/2018] [Accepted: 10/25/2018] [Indexed: 11/28/2022]
Abstract
OBJECTIVES Withdrawal of antiepileptic drugs (AEDs) has been discouraged in juvenile myoclonic epilepsy (JME). However, impulsivity as a consequence of executive dysfunction in JME may influence treatment adherence. The aim of the present study was to assess how common withdrawal of AEDs is in a large and representative JME group. MATERIALS AND METHODS Patients with genetic generalized epilepsy (GGE) were identified through a retrospective search of medical records at Drammen Hospital, Norway, and invited to a clinical interview. Information related to AED withdrawal was analyzed in those classified as JME. RESULTS A total of 132 patients with GGE were interviewed (87 JME). Thirty-five patients with JME (40%) discontinued AEDs, of which 74% did so without consulting a doctor. The rate of self-withdrawal was significantly higher in JME than in other types of GGE. Having a parent with psychosocial difficulties was significantly over-represented in the JME self-withdrawal group. Twelve of those who discontinued AEDs (34%) were free from generalized tonic-clonic seizures (GTCS) and without antiepileptic drugs >1 year. All but one of them withdrew AEDs without consulting a doctor. Age at first motor seizure was significantly higher in those with a favorable outcome of AED withdrawal. CONCLUSIONS Self-withdrawal of AEDs is common in JME, especially in those with troublesome conditions at home. However, about 1/3 may remain free from GTCS without AEDs. The findings indicate a need for a stronger follow-up with appropriate information about the prognosis of the disorder.
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Affiliation(s)
- Marte Syvertsen
- Department of Neurology; Drammen Hospital, Vestre Viken Hospital Trust; Drammen Norway
- Institute of Clinical Medicine; University of Oslo; Oslo Norway
| | - Ida Fløgstad
- Programme for Pharmacy, Faculty of Health Sciences; Oslo Metropolitan University; Oslo Norway
| | - Ulla Enger
- Department of Neurology; Drammen Hospital, Vestre Viken Hospital Trust; Drammen Norway
| | - Cecilie Johannessen Landmark
- Programme for Pharmacy, Faculty of Health Sciences; Oslo Metropolitan University; Oslo Norway
- The National Center for Epilepsy; Oslo University Hospital; Oslo Norway
- Department of Pharmacology, Section for Clinical Pharmacology, The National Center for Epilepsy; Oslo University Hospital; Oslo Norway
| | - Jeanette Koht
- Department of Neurology; Drammen Hospital, Vestre Viken Hospital Trust; Drammen Norway
- Institute of Clinical Medicine; University of Oslo; Oslo Norway
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Syvertsen M, Selmer K, Enger U, Nakken KO, Pal DK, Smith A, Koht J. Psychosocial complications in juvenile myoclonic epilepsy. Epilepsy Behav 2019; 90:122-128. [PMID: 30530133 DOI: 10.1016/j.yebeh.2018.11.022] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/09/2018] [Revised: 11/19/2018] [Accepted: 11/19/2018] [Indexed: 02/06/2023]
Abstract
Juvenile myoclonic epilepsy (JME) constitutes about 10% of all epilepsies. Because of executive dysfunction, people with JME may be prone to impulsivity and risk-taking behavior. Our aim was to investigate whether psychosocial issues associated with impulsivity are more prominent in people with JME than in those with other types of genetic generalized epilepsy (GGE). Patients with GGE were recruited retrospectively through the Drammen Hospital records in Buskerud County, Norway, 1999-2013. They were invited to a semi-structured interview, either at the hospital or at home. Ninety-two patients with JME and 45 with other types of GGE were interviewed. Variables were evaluated in terms of their association with JME versus other GGE diagnosis using a logistic regression model. Juvenile myoclonic epilepsy was associated with use of illicit recreational drugs and police charges, although with borderline significance (odds ratio [OR] 3.4, p = 0.087 and OR 4.2, p = 0.095); JME was also associated with being examined for attention-deficit hyperactivity disorder (ADHD) in females (OR 15.5, p = 0.015), a biological parent with challenges like addiction or violent behavior (OR 3.5, p = 0.032), and use of levetiracetam (OR 5.1, p = 0.014). After controlling for group differences, we found psychosocial complications to be associated with JME, potentially influencing the lives of the individuals and their families to a greater extent than the seizures per se. Thus, JME should be considered a disorder of the brain in a broader sense than a condition with seizures only.
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Affiliation(s)
- Marte Syvertsen
- Department of Neurology, Drammen Hospital, Vestre Viken Hospital Trust, Drammen, Norway; Institute of Clinical Medicine, University of Oslo, Oslo, Norway.
| | - Kaja Selmer
- Department of Medical Genetics, Oslo University Hospital and University of Oslo, Oslo, Norway; National Center for Epilepsy, Division of Clinical Neuroscience, Oslo University Hospital, Oslo, Norway
| | - Ulla Enger
- Department of Neurology, Drammen Hospital, Vestre Viken Hospital Trust, Drammen, Norway
| | - Karl O Nakken
- National Center for Epilepsy, Division of Clinical Neuroscience, Oslo University Hospital, Oslo, Norway
| | - Deb K Pal
- Department of Basic and Clinical Neuroscience, Institute of Psychiatry, Psychology & Neuroscience, King's College London, London, United Kingdom; MRC Centre for Neurodevelopmental Disorders, King's College London, London, United Kingdom; King's College Hospital, London, United Kingdom; Evelina London Children's Hospital, London, United Kingdom
| | - Anna Smith
- Department of Basic and Clinical Neuroscience, Institute of Psychiatry, Psychology & Neuroscience, King's College London, London, United Kingdom
| | - Jeanette Koht
- Department of Neurology, Drammen Hospital, Vestre Viken Hospital Trust, Drammen, Norway; Institute of Clinical Medicine, University of Oslo, Oslo, Norway
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Decision-making in patient s with epilepsy: A systematic review and meta-analysis. Epilepsy Res 2018; 148:55-62. [DOI: 10.1016/j.eplepsyres.2018.10.009] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2018] [Revised: 10/12/2018] [Accepted: 10/21/2018] [Indexed: 11/21/2022]
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Unterberger I, Zamarian L, Prieschl M, Bergmann M, Walser G, Luef G, Javor A, Ransmayr G, Delazer M. Risky Decision Making in Juvenile Myoclonic Epilepsy. Front Neurol 2018; 9:195. [PMID: 29632513 PMCID: PMC5879545 DOI: 10.3389/fneur.2018.00195] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2018] [Accepted: 03/13/2018] [Indexed: 11/13/2022] Open
Abstract
It is not known whether patients with juvenile myoclonic epilepsy (JME) differ from healthy people in decision making under risk, i.e., when the decision-making context offers explicit information about options, probabilities, and consequences already from the beginning. In this study, we adopted the Game of Dice Task-Double to investigate decision making under risk in a group of 36 patients with JME (mean age 25.25/SD 5.29 years) and a group of 38 healthy controls (mean age 26.03/SD 4.84 years). Participants also underwent a comprehensive neuropsychological assessment focused on frontal executive functions. Significant group differences were found in tests of psychomotor speed and divided attention, with the patients scoring lower than the controls. Importantly, patients made risky decisions more frequently than controls. In the patient group, poor decision making was associated with poor executive control, poor response inhibition, and a short interval since the last seizure episode. Executive control and response inhibition could predict 42% of variance in the frequency of risky decisions. This study indicates that patients with JME with poorer executive functions are more likely to make risky decisions than healthy controls. Decision making under risk is of major importance in every-day life, especially with regard to treatment decisions and adherence to long-term medical therapy. Since even a single disadvantageous decision may have long-lasting consequences, this finding is of high relevance.
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Affiliation(s)
- Iris Unterberger
- Department of Neurology, Medical University of Innsbruck, Innsbruck, Austria
| | - Laura Zamarian
- Department of Neurology, Medical University of Innsbruck, Innsbruck, Austria
| | - Manuela Prieschl
- Department of Neurology, Medical University of Innsbruck, Innsbruck, Austria
| | - Melanie Bergmann
- Department of Neurology, Medical University of Innsbruck, Innsbruck, Austria
| | - Gerald Walser
- Department of Neurology, Medical University of Innsbruck, Innsbruck, Austria
| | - Gerhard Luef
- Department of Neurology, Medical University of Innsbruck, Innsbruck, Austria
| | - Andrija Javor
- Department of Neurology 2, Kepler University Hospital, Linz, Austria
| | - Gerhard Ransmayr
- Department of Neurology 2, Kepler University Hospital, Linz, Austria
| | - Margarete Delazer
- Department of Neurology, Medical University of Innsbruck, Innsbruck, Austria
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The "Cinderella Syndrome": A narrative study of social curfews and lifestyle restrictions in juvenile myoclonic epilepsy. Epilepsy Behav 2018; 78:104-108. [PMID: 29179101 DOI: 10.1016/j.yebeh.2017.10.024] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/15/2017] [Revised: 10/19/2017] [Accepted: 10/19/2017] [Indexed: 11/22/2022]
Abstract
Several factors are thought to contribute to inadequate seizure control in patients with juvenile myoclonic epilepsy (JME), including drug resistance, neuropsychiatric comorbidity, and poor lifestyle choices. Recent evidence supports the existence of frontal lobe microstructural deficits and behavioral changes that may contribute to poor seizure control in a minority of patients. Counseling patients on the importance of adequate sleep hygiene and alcohol restriction is an important part of the management strategy for patients with JME. However, information is lacking on how these lifestyle restrictions impact on patients with JME. We conducted a qualitative descriptive analysis of the social impact of JME on 12 patients, from their own perspective. We identified four prominent themes: the importance of alcohol use as a social "norm", how JME affected relationships, decision making (risk versus consequences), and knowledge imparting control. Given that these restrictions were interpreted by patients as social "curfews", we suggest that the term "Cinderella Syndrome" encapsulates the perceived imperative to be home before midnight. Our findings underscore the importance for clinicians to recognize that in counseling patients with JME about lifestyle adjustments, there may be a significant social consequence unique to this patient group.
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Sleep problems in pediatric epilepsy and ADHD: The impact of comorbidity. Epilepsy Behav 2017; 71:7-12. [PMID: 28437682 DOI: 10.1016/j.yebeh.2017.03.026] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/13/2016] [Revised: 03/03/2017] [Accepted: 03/18/2017] [Indexed: 01/01/2023]
Abstract
AIMS Attention-deficit hyperactivity disorder (ADHD) is a frequent comorbidity in pediatric epilepsy. Although sleep problems are commonly reported in both children with primary ADHD and epilepsy, those with epilepsy-ADHD comorbidity have not been well studied. This study aimed to compare sleep problems among three groups of children: 1) children with epilepsy, 2) children with epilepsy and ADHD (epilepsy-ADHD), and 3) children with primary ADHD. METHODS 53 children with epilepsy, 35 children with epilepsy-ADHD, and 52 children with primary ADHD completed the Children's Sleep Habits Questionnaire (CSHQ). Neurology clinic charts were reviewed for the epilepsy-related variables. ADHD subtypes were diagnosed according to the DSM-IV. RESULTS Children with epilepsy-ADHD had the highest CSHQ total scores, while children with primary ADHD had higher scores than those with epilepsy. Besides the total score, epilepsy-ADHD group differed from the primary ADHD and epilepsy groups with higher CSHQ subscores on sleep onset delay and sleep anxiety. The frequency of moderate-severe sleep problems (CSHQ>56) was 62.9% in children with epilepsy-ADHD, while it was 40.4% and 26.4% in children with primary ADHD and epilepsy, respectively. CSHQ total scores were not different between ADHD subtypes in both children with epilepsy-ADHD and those with primary ADHD. None of the epilepsy-related variables were found to be associated with CSHQ scores. DISCUSSION Epilepsy-ADHD is associated with a significantly poor sleep quality which is beyond that of primary ADHD and epilepsy.
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Xiao F, An D, Zhou D. Functional MRI-based connectivity analysis: A promising tool for the investigation of the pathophysiology and comorbidity of epilepsy. Seizure 2017; 44:37-41. [DOI: 10.1016/j.seizure.2016.10.003] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2016] [Revised: 09/14/2016] [Accepted: 10/03/2016] [Indexed: 12/25/2022] Open
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Social cognition in Juvenile Myoclonic Epilepsy. Epilepsy Res 2016; 128:61-67. [DOI: 10.1016/j.eplepsyres.2016.10.017] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2016] [Accepted: 10/24/2016] [Indexed: 12/19/2022]
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Wolf P, Yacubian EMT, Avanzini G, Sander T, Schmitz B, Wandschneider B, Koepp M. Juvenile myoclonic epilepsy: A system disorder of the brain. Epilepsy Res 2015; 114:2-12. [DOI: 10.1016/j.eplepsyres.2015.04.008] [Citation(s) in RCA: 78] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2015] [Accepted: 04/14/2015] [Indexed: 12/28/2022]
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Pittau F, Mégevand P, Sheybani L, Abela E, Grouiller F, Spinelli L, Michel CM, Seeck M, Vulliemoz S. Mapping epileptic activity: sources or networks for the clinicians? Front Neurol 2014; 5:218. [PMID: 25414692 PMCID: PMC4220689 DOI: 10.3389/fneur.2014.00218] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2014] [Accepted: 10/08/2014] [Indexed: 01/03/2023] Open
Abstract
Epileptic seizures of focal origin are classically considered to arise from a focal epileptogenic zone and then spread to other brain regions. This is a key concept for semiological electro-clinical correlations, localization of relevant structural lesions, and selection of patients for epilepsy surgery. Recent development in neuro-imaging and electro-physiology and combinations, thereof, have been validated as contributory tools for focus localization. In parallel, these techniques have revealed that widespread networks of brain regions, rather than a single epileptogenic region, are implicated in focal epileptic activity. Sophisticated multimodal imaging and analysis strategies of brain connectivity patterns have been developed to characterize the spatio-temporal relationships within these networks by combining the strength of both techniques to optimize spatial and temporal resolution with whole-brain coverage and directional connectivity. In this paper, we review the potential clinical contribution of these functional mapping techniques as well as invasive electrophysiology in human beings and animal models for characterizing network connectivity.
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Affiliation(s)
- Francesca Pittau
- EEG and Epilepsy Unit, Neurology Department, University Hospitals and Faculty of Medicine of Geneva , Geneva , Switzerland
| | - Pierre Mégevand
- Laboratory for Multimodal Human Brain Mapping, Hofstra North Shore LIJ School of Medicine , Manhasset, NY , USA
| | - Laurent Sheybani
- Functional Brain Mapping Laboratory, Department of Fundamental Neurosciences, University of Geneva , Geneva , Switzerland
| | - Eugenio Abela
- Support Center of Advanced Neuroimaging (SCAN), Institute for Diagnostic and Interventional Neuroradiology, University Hospital Inselspital , Bern , Switzerland
| | - Frédéric Grouiller
- Radiology Department, University Hospitals and Faculty of Medicine of Geneva , Geneva , Switzerland
| | - Laurent Spinelli
- EEG and Epilepsy Unit, Neurology Department, University Hospitals and Faculty of Medicine of Geneva , Geneva , Switzerland
| | - Christoph M Michel
- Functional Brain Mapping Laboratory, Department of Fundamental Neurosciences, University of Geneva , Geneva , Switzerland
| | - Margitta Seeck
- EEG and Epilepsy Unit, Neurology Department, University Hospitals and Faculty of Medicine of Geneva , Geneva , Switzerland
| | - Serge Vulliemoz
- EEG and Epilepsy Unit, Neurology Department, University Hospitals and Faculty of Medicine of Geneva , Geneva , Switzerland
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How to Advance the Debate on Nonspecific vs Specific Seizure Type and Comorbidity Profile. Epilepsy Curr 2014; 14:191-3. [PMID: 25170314 DOI: 10.5698/1535-7597-14.4.191] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
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Chachua T, Goletiani C, Maglakelidze G, Sidyelyeva G, Daniel M, Morris E, Miller J, Shang E, Wolgemuth DJ, Greenberg DA, Velíšková J, Velíšek L. Sex-specific behavioral traits in the Brd2 mouse model of juvenile myoclonic epilepsy. GENES BRAIN AND BEHAVIOR 2014; 13:702-12. [PMID: 25130458 DOI: 10.1111/gbb.12160] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/05/2014] [Revised: 07/31/2014] [Accepted: 08/04/2014] [Indexed: 12/23/2022]
Abstract
Idiopathic generalized epilepsy represents about 30-35% of all epilepsies in humans. The bromodomain BRD2 gene has been repeatedly associated with the subsyndrome of juvenile myoclonic epilepsy (JME). Our previous work determined that mice haploinsufficient in Brd2 (Brd2+/-) have increased susceptibility to provoked seizures, develop spontaneous seizures and have significantly decreased gamma-aminobutyric acid (GABA) markers in the direct basal ganglia pathway as well as in the neocortex and superior colliculus. Here, we tested male and female Brd2+/- and wild-type littermate mice in a battery of behavioral tests (open field, tube dominance test, elevated plus maze, Morris water maze and Barnes maze) to identify whether Brd2 haploinsufficiency is associated with the human behavioral patterns, the so-called JME personality. Brd2+/- females but not males consistently displayed decreased anxiety. Furthermore, we found a highly significant dominance trait (aggression) in the Brd2+/- mice compared with the wild type, more pronounced in females. Brd2+/- mice of either sex did not differ from wild-type mice in spatial learning and memory tests. Compared with wild-type littermates, we found decreased numbers of GABA neurons in the basolateral amygdala, which is consistent with the increase in aggressive behavior. Our results indicate that Brd2+/- haploinsufficient mice show no cognitive impairment but have behavioral traits similar to those found in patients with JME (recklessness, aggression). This suggests that either the BRD2 gene is directly responsible for influencing many traits of JME or it controls upstream regulators of individual phenotypes.
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Affiliation(s)
- T Chachua
- Department of Cell Biology & Anatomy, New York Medical College, Valhalla, NY, USA
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Wandschneider B, Centeno M, Vollmar C, Symms M, Thompson PJ, Duncan JS, Koepp MJ. Motor co-activation in siblings of patients with juvenile myoclonic epilepsy: an imaging endophenotype? ACTA ACUST UNITED AC 2014; 137:2469-79. [PMID: 25001494 PMCID: PMC4132647 DOI: 10.1093/brain/awu175] [Citation(s) in RCA: 50] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
In juvenile myoclonic epilepsy (JME), myoclonic jerks are often triggered by cognitive effort. Wandschneider et al. report co-activation of the motor and prefrontal cognitive networks in unaffected siblings, similar to that previously reported in patients themselves. This co-activation could constitute a heritable marker for further genetic studies of JME. Juvenile myoclonic epilepsy is a heritable idiopathic generalized epilepsy syndrome, characterized by myoclonic jerks and frequently triggered by cognitive effort. Impairment of frontal lobe cognitive functions has been reported in patients with juvenile myoclonic epilepsy and their unaffected siblings. In a recent functional magnetic resonance imaging study we reported abnormal co-activation of the motor cortex and increased functional connectivity between the motor system and prefrontal cognitive networks during a working memory paradigm, providing an underlying mechanism for cognitively triggered jerks. In this study, we used the same task in 15 unaffected siblings (10 female; age range 18–65 years, median 40) of 11 of those patients with juvenile myoclonic epilepsy (six female; age range 22–54 years, median 35) and compared functional magnetic resonance imaging activations with 20 age- and gender-matched healthy control subjects (12 female; age range 23–46 years, median 30.5). Unaffected siblings showed abnormal primary motor cortex and supplementary motor area co-activation with increasing cognitive load, as well as increased task-related functional connectivity between motor and prefrontal cognitive networks, with a similar pattern to patients (P < 0.001 uncorrected; 20-voxel threshold extent). This finding in unaffected siblings suggests that altered motor system activation and functional connectivity is not medication- or seizure-related, but represents a potential underlying mechanism for impairment of frontal lobe functions in both patients and siblings, and so constitutes an endophenotype of juvenile myoclonic epilepsy.
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Affiliation(s)
- Britta Wandschneider
- 1 Department of Clinical and Experimental Epilepsy, UCL Institute of Neurology, Queen Square, London WC1N 3BG, UK
| | - Maria Centeno
- 1 Department of Clinical and Experimental Epilepsy, UCL Institute of Neurology, Queen Square, London WC1N 3BG, UK2 Imaging and Biophysics Department, UCL Institute of Child Health, 30 Guilford Street, London WC1N 1EH, UK
| | - Christian Vollmar
- 1 Department of Clinical and Experimental Epilepsy, UCL Institute of Neurology, Queen Square, London WC1N 3BG, UK3 Department of Neurology, Ludwig-Maximilians-Universität, Marchioninistr. 15, 81377 Munich, Germany
| | - Mark Symms
- 1 Department of Clinical and Experimental Epilepsy, UCL Institute of Neurology, Queen Square, London WC1N 3BG, UK
| | - Pamela J Thompson
- 1 Department of Clinical and Experimental Epilepsy, UCL Institute of Neurology, Queen Square, London WC1N 3BG, UK
| | - John S Duncan
- 1 Department of Clinical and Experimental Epilepsy, UCL Institute of Neurology, Queen Square, London WC1N 3BG, UK
| | - Matthias J Koepp
- 1 Department of Clinical and Experimental Epilepsy, UCL Institute of Neurology, Queen Square, London WC1N 3BG, UK
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Seneviratne U, Cook M, D'Souza W. Focal abnormalities in idiopathic generalized epilepsy: A critical review of the literature. Epilepsia 2014; 55:1157-69. [DOI: 10.1111/epi.12688] [Citation(s) in RCA: 72] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/13/2014] [Indexed: 11/30/2022]
Affiliation(s)
- Udaya Seneviratne
- Department of Medicine; St. Vincent's Hospital; University of Melbourne; Melbourne Victoria Australia
- Department of Neuroscience; Monash Medical Centre; Melbourne Victoria Australia
| | - Mark Cook
- Department of Medicine; St. Vincent's Hospital; University of Melbourne; Melbourne Victoria Australia
| | - Wendyl D'Souza
- Department of Medicine; St. Vincent's Hospital; University of Melbourne; Melbourne Victoria Australia
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Koepp MJ, Thomas RH, Wandschneider B, Berkovic SF, Schmidt D. Concepts and controversies of juvenile myoclonic epilepsy: still an enigmatic epilepsy. Expert Rev Neurother 2014; 14:819-31. [DOI: 10.1586/14737175.2014.928203] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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Syvertsen MR, Thuve S, Stordrange BS, Brodtkorb E. Clinical heterogeneity of juvenile myoclonic epilepsy: Follow-up after an interval of more than 20 years. Seizure 2014; 23:344-8. [DOI: 10.1016/j.seizure.2014.01.012] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2013] [Revised: 01/13/2014] [Accepted: 01/15/2014] [Indexed: 11/26/2022] Open
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Wilmshurst JM, Berg AT, Lagae L, Newton CR, Cross JH. The challenges and innovations for therapy in children with epilepsy. Nat Rev Neurol 2014; 10:249-60. [PMID: 24709890 DOI: 10.1038/nrneurol.2014.58] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
Major advances have been made in the diagnosis, evaluation and management of children with epilepsy over the past 15 years. There has been a marked increase in genetic diagnoses of a number of key childhood-onset epilepsy syndromes, such as Dravet syndrome, which has been linked to mutations in the SCN1A gene. The reorganization and reclassification of epilepsies, devised by the International League Against Epilepsy, has stimulated specialists to reassess their diagnostic practices; however, many studies have not addressed the global issues in treating children with epilepsy-specifically, the challenges of diagnosis through to optimal, and appropriate, therapeutic management. Also, Class I evidence-based data that are needed as a foundation for the development of treatment guidelines worldwide are lacking. Epilepsy is common, and the impact of this disease crosses age ranges and should be managed at all levels of care from community to quaternary care. In this Review, existing data and new therapeutic management approaches are discussed with the aim of highlighting the incidence of standard practices that may not be based on clinical evidence.
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Affiliation(s)
- Jo M Wilmshurst
- Red Cross War Memorial Children's Hospital, University of Cape Town, Rondebosch 7700, South Africa
| | - Anne T Berg
- Ann & Robert H. Lurie Children's Hospital of Chicago, 225 East Chicago Avenue, Chicago, IL 60611, USA
| | - Lieven Lagae
- Department of Pediatric Neurology, University Hospitals Leuven, Herestraat 49, 3000 Leuven, Belgium
| | - Charles R Newton
- Centre for Geographic Medicine Research-Coast, Kenya Medical Research Institute, PO Box 230, Kilifi 80108, Kenya
| | - J Helen Cross
- UCL Institute of Child Health, 4/5 Long Yard, London WC1N 3LU, UK
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Holtkamp M, Kowski AB, Merkle H, Janz D. Long-term outcome in epilepsy with grand mal on awakening: forty years of follow-up. Ann Neurol 2014; 75:298-302. [PMID: 24395517 DOI: 10.1002/ana.24103] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2013] [Revised: 12/22/2013] [Accepted: 12/22/2013] [Indexed: 11/05/2022]
Abstract
Epilepsy with grand mal on awakening (EGMA) is a well-defined subtype of idiopathic generalized epilepsy. Patients with follow-up of at least 20 years were assessed retrospectively regarding 5-year terminal seizure remission. Forty-two patients were included (mean age=60 ± 13 years). After follow-up of 40 ± 13 years, 26 patients (62%) were in remission, 5 without antiepileptic drugs. Age at investigation (odds ratio=0.939, 95% confidence interval=0.887-0.994, p=0.029) independently predicted lacking remission. Nineteen patients (45.2%) had withdrawn from antiepileptic drugs at least once; 12 of those (63.2%) had seizure relapse. EGMA has a favorable long-term prognosis. With increasing age and treatment duration, antiepileptic drug withdrawal may be justified.
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Affiliation(s)
- Martin Holtkamp
- Epilepsy Center Berlin-Brandenburg, Department of Neurology, Charité-Universitätsmedizin Berlin, Berlin, Germany
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