1
|
Dahawi M, Elmagzoub MS, A. Ahmed E, Baldassari S, Achaz G, Elmugadam FA, Abdelgadir WA, Baulac S, Buratti J, Abdalla O, Gamil S, Alzubeir M, Abubaker R, Noé E, Elsayed L, Ahmed AE, Leguern E. Involvement of ADGRV1 Gene in Familial Forms of Genetic Generalized Epilepsy. Front Neurol 2021; 12:738272. [PMID: 34744978 PMCID: PMC8567843 DOI: 10.3389/fneur.2021.738272] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2021] [Accepted: 09/13/2021] [Indexed: 11/21/2022] Open
Abstract
Background: Genetic generalized epilepsies (GGE) including childhood absence epilepsy (CAE), juvenile absence epilepsy (JAE), juvenile myoclonic epilepsy (JME), and GGE with tonic-clonic seizures alone (GGE-TCS), are common types of epilepsy mostly determined by a polygenic mode of inheritance. Recent studies showed that susceptibility genes for GGE are numerous, and their variants rare, challenging their identification. In this study, we aimed to assess GGE genetic etiology in a Sudanese population. Methods: We performed whole-exome sequencing (WES) on DNA of 40 patients from 20 Sudanese families with GGE searching for candidate susceptibility variants, which were prioritized by CADD software and functional features of the corresponding gene. We assessed their segregation in 138 individuals and performed genotype-phenotype correlations. Results: In a family including three sibs with GGE-TCS, we identified a rare missense variant in ADGRV1 encoding an adhesion G protein-coupled receptor V1, which was already involved in the autosomal recessive Usher type C syndrome. In addition, five other ADGRV1 rare missense variants were identified in four additional families and absent from 119 Sudanese controls. In one of these families, an ADGRV1 variant was found at a homozygous state, in a female more severely affected than her heterozygous brother, suggesting a gene dosage effect. In the five families, GGE phenotype was statistically associated with ADGRV1 variants (0R = 0.9 103). Conclusion: This study highly supports, for the first time, the involvement of ADGRV1 missense variants in familial GGE and that ADGRV1 is a susceptibility gene for CAE/JAE and GGE-TCS phenotypes.
Collapse
Affiliation(s)
- Maha Dahawi
- Sorbonne Université, Institut du Cerveau - Paris Brain Institute - ICM, Inserm, CNRS, Paris, France
- Department of Physiology, Faculty of Medicine, University of Khartoum, Khartoum, Sudan
| | - Mohamed S. Elmagzoub
- Faculty of Medicine, National Ribat University, Khartoum, Sudan
- Neuroscience Department, College of Applied Medical Sciences, Imam Abdulrahman bin Faisal University, Dammam, Saudi Arabia
| | - Elhami A. Ahmed
- UNESCO Chair on Bioethics, Faculty of Medicine, University of Khartoum, Khartoum, Sudan
- Faculty of Medicine, University of Khartoum, Khartoum, Sudan
| | - Sara Baldassari
- Sorbonne Université, Institut du Cerveau - Paris Brain Institute - ICM, Inserm, CNRS, Paris, France
| | - Guillaume Achaz
- Institut Systématique Evolution Biodiversité, Muséum National d'Histoire Naturelle, CNRS, Sorbonne Université, EPHE, Université des Antilles, Paris, France
- SMILE Group, CIRB, Collège de France, CNRS, INSERM, Paris, France
- Éco-anthropologie, Muséum National d'Histoire Naturelle, Université de Paris, Paris, France
| | | | - Wasma A. Abdelgadir
- Department of Biochemistry and Molecular Biology, Faculty of Sciences and Technology, Al-Neelain University, Khartoum, Sudan
| | - Stéphanie Baulac
- Sorbonne Université, Institut du Cerveau - Paris Brain Institute - ICM, Inserm, CNRS, Paris, France
| | - Julien Buratti
- Department of Medical Genetics, AP-HP Sorbonne Université, Sorbonne Université, Paris, France
| | - Omer Abdalla
- Department of Physiology, Faculty of Medicine, University of Khartoum, Khartoum, Sudan
| | - Sahar Gamil
- Department of Biochemistry, Faculty of Medicine, University of Khartoum, Khartoum, Sudan
| | - Maha Alzubeir
- Faculty of Medicine, University of Khartoum, Khartoum, Sudan
- Neurology, Sudan Medical Council, Khartoum, Sudan
| | - Rayan Abubaker
- Faculty of Medicine, University of Khartoum, Khartoum, Sudan
| | - Eric Noé
- Sorbonne Université, Institut du Cerveau - Paris Brain Institute - ICM, Inserm, CNRS, Paris, France
- Sorbonne Université, Paris, France
| | - Liena Elsayed
- Faculty of Medicine, University of Khartoum, Khartoum, Sudan
- Department of Basic Sciences, College of Medicine, Princess Nourah Bint Abdulrahman University, Riyadh, Saudi Arabia
| | - Ammar E. Ahmed
- Department of Physiology, Faculty of Medicine, University of Khartoum, Khartoum, Sudan
- Neurology, Sudan Medical Council, Khartoum, Sudan
| | - Eric Leguern
- Sorbonne Université, Institut du Cerveau - Paris Brain Institute - ICM, Inserm, CNRS, Paris, France
- Department of Medical Genetics, AP-HP Sorbonne Université, Sorbonne Université, Paris, France
| |
Collapse
|
2
|
Ahmed ME, Mahgoub MA, Alnedar MG, Mahadi SI, Alzubeir M, El Hassan LA, Elamin EM, El Hassan AM. Myasthenic Crisis Manifesting as Postoperative Respiratory Failure following Resection of Unsuspected Intrathoracic Thymic T-Cell Lymphoma during Thyroidectomy for an Adjacent Large Retrosternal Goiter. Eur Thyroid J 2014; 3:206-10. [PMID: 25538904 PMCID: PMC4224263 DOI: 10.1159/000364822] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/16/2013] [Revised: 05/26/2014] [Indexed: 11/22/2022] Open
Abstract
A middle-aged female with a goiter of 10 years' duration presented with progressive pressure symptoms, nocturnal choking and dyspnea on exertion for 5 months. Physical examination demonstrated a large simple multinodular goiter. Imaging revealed a deep retrosternal goiter extending below the tracheal bifurcation with marked tracheal deviation. Total thyroidectomy was carried out via a cervical approach and a median sternotomy. Extubation was not possible, and the patient had to be kept intubated. She then went into a myasthenic crisis. Initial ventilatory support was followed by intravenous immunoglobulin, steroids and pyridostigmine. The patient had complete remission and was asymptomatic 18 months later. Histopathology showed a T-cell-rich thymoma in addition to a nodular colloid goiter.
Collapse
Affiliation(s)
- Mohamed E Ahmed
- Khartoum Teaching Hospital, Khartoum, Sudan
- Department of Medicine, Khartoum, Sudan
| | | | | | - Seif I Mahadi
- Khartoum Teaching Hospital, Khartoum, Sudan
- Department of Medicine, Khartoum, Sudan
| | - Maha Alzubeir
- Department of Surgery, Faculty of Medicine, at, Khartoum, Sudan
| | | | | | | |
Collapse
|