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Ünalp A, Güzin Y, Ünay B, Tosun A, Çavuşoğlu D, Tekin HG, Kurul SH, Arhan E, Edizer S, Öztürk G, Yiş U, Yılmaz Ü. Retracted: Clinical and genetic evaluations of rare childhood epilepsies in Turkey's national cohort. Epileptic Disord 2023; 25:924. [PMID: 37584621 DOI: 10.1002/epd2.20150] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/25/2023] [Revised: 12/25/2022] [Accepted: 08/10/2023] [Indexed: 08/17/2023]
Abstract
Aycan Ünalp, Yiğithan Güzin, Bülent Ünay, Ayşe Tosun, Dilek Çavuşoğlu, Hande Gazeteci Tekin, Semra Hız Kurul, Ebru Arhan, Selvinaz Edizer, Gülten Öztürk, Uluç Yiş, Ünsal Yılmaz, Turkish Rare Epilepsies Study Group, Clinical and genetic evaluations of rare childhood epilepsies in Turkey's national cohort, Epileptic Disorders, 2023, (https://doi.org/10.1002/epd2.20150) The above article, published online on 16 August 2023 on Wiley Online Library (www.onlinelibrary.wiley.com), has been retracted by agreement between the authors, the Editor-in-Chief, Sándor Beniczky, and John Wiley & Sons Ltd. The authors asked for a retraction based on an experimental error which would alter the results of the study if corrected.
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Bayanova M, Bolatov AK, Bazenova A, Nazarova L, Nauryzbayeva A, Tanko NM, Rakhimova S, Satvaldina N, Samakyzy D, Kozhamkulov U, Kairov U, Akilzhanova A, Sarbassov D. Whole-Genome Sequencing Among Kazakhstani Children with Early-Onset Epilepsy Revealed New Gene Variants and Phenotypic Variability. Mol Neurobiol 2023; 60:4324-4335. [PMID: 37095367 PMCID: PMC10293429 DOI: 10.1007/s12035-023-03346-3] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2023] [Accepted: 04/12/2023] [Indexed: 04/26/2023]
Abstract
In Kazakhstan, there is insufficient data on genetic epilepsy, which has its own clinical and management implications. Thus, this study aimed to use whole genome sequencing to identify and evaluate genetic variants and genetic structure of early onset epilepsy in the Kazakhstani pediatric population. In this study, for the first time in Kazakhstan, whole genome sequencing was carried out among epilepsy diagnosed children. The study involved 20 pediatric patients with early onset epilepsy and no established cause of the disease during the July-December, 2021. The average age at enrolment was 34.5 months, with a mean age at seizure onset of 6 months. Six patients (30%) were male, and 7 were familial cases. We identified pathogenic and likely pathogenic variants in 14 (70%) cases, among them, 6 novel disease gene variants (KCNQ2, CASK, WWOX, MT-CO3, GRIN2D, and SLC12A5). Other genes associated with the disease were SCN1A (x2), SLC2A1, ARX, CACNA1B, PCDH19, KCNT1, and CHRNA2. Identification of the genetic causes in 70% of cases confirms the general structure of the etiology of early onset epilepsy and the necessity of using NGS in diagnostics. Moreover, the study describes new genotype-phenotypic correlations in genetic epilepsy. Despite certain limitations of the study, it can be concluded that the genetic etiology of pediatric epilepsy in Kazakhstan is very broad and requires further research.
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Affiliation(s)
- Mirgul Bayanova
- University Medical Center CF, Kerey-Zhanibek Handar St. 5/1, Z05P3Y4, Astana, Kazakhstan
| | - Aidos K. Bolatov
- University Medical Center CF, Kerey-Zhanibek Handar St. 5/1, Z05P3Y4, Astana, Kazakhstan
- Astana Medical University, Beybitshilik St. 49A, Z10K9D9, Astana, Kazakhstan
| | - Assiya Bazenova
- University Medical Center CF, Kerey-Zhanibek Handar St. 5/1, Z05P3Y4, Astana, Kazakhstan
| | - Lyazzat Nazarova
- University Medical Center CF, Kerey-Zhanibek Handar St. 5/1, Z05P3Y4, Astana, Kazakhstan
| | - Alissa Nauryzbayeva
- University Medical Center CF, Kerey-Zhanibek Handar St. 5/1, Z05P3Y4, Astana, Kazakhstan
| | - Naanlep Matthew Tanko
- University Medical Center CF, Kerey-Zhanibek Handar St. 5/1, Z05P3Y4, Astana, Kazakhstan
- Department of Biomedical Sciences, School of Medicine, Nazarbayev University, Astana, Kazakhstan 010000
| | - Saule Rakhimova
- Center for Life Sciences, National Laboratory Astana, Nazarbayev University, Kabanbay batyr Ave 53, Astana, Kazakhstan 010000
| | - Nazerke Satvaldina
- Center for Life Sciences, National Laboratory Astana, Nazarbayev University, Kabanbay batyr Ave 53, Astana, Kazakhstan 010000
| | - Diana Samakyzy
- Center for Life Sciences, National Laboratory Astana, Nazarbayev University, Kabanbay batyr Ave 53, Astana, Kazakhstan 010000
| | - Ulan Kozhamkulov
- Center for Life Sciences, National Laboratory Astana, Nazarbayev University, Kabanbay batyr Ave 53, Astana, Kazakhstan 010000
| | - Ulykbek Kairov
- Center for Life Sciences, National Laboratory Astana, Nazarbayev University, Kabanbay batyr Ave 53, Astana, Kazakhstan 010000
| | - Ainur Akilzhanova
- Center for Life Sciences, National Laboratory Astana, Nazarbayev University, Kabanbay batyr Ave 53, Astana, Kazakhstan 010000
| | - Dos Sarbassov
- Center for Life Sciences, National Laboratory Astana, Nazarbayev University, Kabanbay batyr Ave 53, Astana, Kazakhstan 010000
- School of Sciences and Humanities, Nazarbayev University, Kabanbay batyr Ave 53, Astana, Kazakhstan 010000
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Wirrell EC, Riney K, Specchio N, Zuberi SM. How have the recent updated epilepsy classifications impacted on diagnosis and treatment? Expert Rev Neurother 2023; 23:969-980. [PMID: 37676056 DOI: 10.1080/14737175.2023.2254937] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2023] [Accepted: 08/30/2023] [Indexed: 09/08/2023]
Abstract
INTRODUCTION Epilepsies are a diverse group of disorders which differ regarding prognosis for seizure control and associated comorbidities. Accurate classification is critical to choose the highest yield investigations and best therapeutic options and to provide the most accurate prognoses regarding the expected degree of seizure control, possible remission, and risk of associated comorbidities to patients and their families. This article reviews the recent updates in epilepsy classification to illustrate how accurate classification impacts care for persons with epilepsy. AREAS COVERED The authors discuss the ILAE 2017 Classification of the Epilepsies along with the modification of the classification for neonatal seizures and epilepsies. They also discuss the ILAE position papers on Epilepsy syndromes in neonates and infants and children of variable age and the Idiopathic Generalized Epilepsies. EXPERT OPINION Accurate epilepsy classification allows selection of the highest yield investigations, choice of optimal therapies, and accurate prognostication of seizures (likelihood of response to antiseizure treatments and likelihood of remission with age), as well as comorbidities (likelihood, type, and severity). As we move into the era of disease modifying therapy, early accurate identification of underlying causes with timely introduction of specific treatments will be crucial to lessen the severity of epilepsy, with improved seizure control and attenuation of associated comorbidities.
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Affiliation(s)
- Elaine C Wirrell
- Divisions of Child and Adolescent Neurology and Epilepsy, Department of Neurology, Mayo Clinic, Rochester, MN, USA
| | - Kate Riney
- Neurosciences Unit, Queensland Children's Hospital, Australia and Faculty of Medicine, University of St Lucia, Brisbane, Queensland, Australia
| | - Nicola Specchio
- Clinical and Experimental Neurology, Bambino Gesu Children's Hospital, IRCCS, Full Member of European Reference Network on Rare and Complex Epilepsies (EpiCARE), Rome, Italy
| | - Sameer M Zuberi
- School of Health and Wellbeing, University of Glasgow, Glasgow, UK
- Royal Hospital for Children, Glasgow, UK
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Celik H, Ozdemir FMA, Aksoy E, Oztoprak U, Kilic M, Yuksel D. Evaluation of clinical and electroencephalographic findings in patients with early childhood epilepsy and inborn errors of metabolism. Acta Neurol Belg 2022; 122:1575-1581. [DOI: 10.1007/s13760-022-02066-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2022] [Accepted: 08/11/2022] [Indexed: 11/01/2022]
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