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Bocoum A, Ouologuem M, Cissé L, Essop F, dit Papa Coulibaly S, Botha N, Cissé CAK, dit Baneye Maiga A, Krause A, Landouré G. The First Case of Huntington's Disease like 2 in Mali, West Africa. Tremor Other Hyperkinet Mov (N Y) 2024; 14:15. [PMID: 38617831 PMCID: PMC11011944 DOI: 10.5334/tohm.859] [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] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2024] [Accepted: 03/07/2024] [Indexed: 04/16/2024] Open
Abstract
Background Huntington's disease like 2 (HDL2) has been reported exclusively in patients with African ancestry, mostly originating from South Africa. Case report We report three patients in Mali including a proband and his two children who have been examined by neurologists and psychiatrists after giving consent. They were aged between 28 and 56 years old. Psychiatric symptoms were predominant in the two younger patients while the father presented mainly with motor symptoms. Genetic testing identified a heterozygous 40 CTG repeat expansion in the Junctophilin-3 (JPH3) gene in all three patients. Discussion This study supports the hypothesis that HDL2 may be widely spread across Africa. Highlights We report here the first case of HDL2 in West Africa, suggesting that HDL2 is widely spread across African continent, and increasing access to genetic testing could uncover other cases.
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Affiliation(s)
| | | | | | - Fahmida Essop
- Division of Human Genetics, National Health Laboratory Service and School of Pathology, Faculty of Health Sciences, The University of the Witwatersrand, Johannesburg, South Africa
| | | | - Nadine Botha
- Division of Human Genetics, National Health Laboratory Service and School of Pathology, Faculty of Health Sciences, The University of the Witwatersrand, Johannesburg, South Africa
| | | | | | - Amanda Krause
- Division of Human Genetics, National Health Laboratory Service and School of Pathology, Faculty of Health Sciences, The University of the Witwatersrand, Johannesburg, South Africa
| | - Guida Landouré
- Facultéde Médecine et d’Odontostomatologie, USTTB, Bamako, Mali
- Service de Neurologie, CHU Point “G”, Bamako, Mali
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Bocoum A, Coulibaly T, Ouologuem M, Cissé L, Diallo SH, Maiga BB, Dembélé K, Diallo S, Coulibaly SDP, Kané F, Coulibaly T, Coulibaly D, Taméga A, Yalcouyé A, Diarra S, Dembélé ME, Maiga AB, Cissé CAK, Traoré O, Fischbeck KH, Guinto CO, Maiga Y, Landouré G. Clinical and Genetic Aspects of Huntington's Disease in the Malian Population. J Huntingtons Dis 2022; 11:195-201. [PMID: 35311712 DOI: 10.3233/jhd-220529] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
BACKGROUND Huntington's disease (HD) is an autosomal dominant neurodegenerative disorder caused by mutation in the HTT gene and characterized by involuntary movements as well as cognitive and behavioral impairment. Since its first description 150 years ago, studies have been reported worldwide. However, genetically confirmed cases have been scarce in Africa. OBJECTIVE To describe the clinical and genetic aspects of HD in the Malian population. METHODS Patients with HD phenotype and their relatives were enrolled after obtaining consent. Symptoms were assessed using the Total Motor Scale (TMS) of the United Huntington's Disease Rating Scale (UHDRS) and the Mini-Mental State Examination (MMSE). Brain imaging and blood tests were performed to exclude other causes. DNA was extracted for HTT sequencing. RESULTS Eighteen patients (13 families) with a HD phenotype were evaluated. A familial history of the disease was found in 84.6% with 55.5% of maternal transmission. The average length of the HTT CAG repeat was 43.6±11.5 (39-56) CAGs. The mean age at onset was 43.1±9.7years. Choreic movements were the predominant symptoms (100% of the cases) with an average TMS of 49.4±30.8, followed by cognitive impairment (average MMSE score: 23.0±12.0) and psychiatric symptoms with 22.2% and 44.4%, respectively. CONCLUSION This is one of the largest HD cohorts reported in Africa. Increasing access to genetic testing could uncover many other HD cases and disease-modifying genetic variants. Future haplotype and psychosocial studies may inform the origin of the Malian mutation and the impact of the disease on patients and their relatives.
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Affiliation(s)
- Abdoulaye Bocoum
- Faculté de Médecine et d'Odontostomatologie, USTTB, Bamako, Mali
| | | | | | - Lassana Cissé
- Service de Neurologie, CHU du Point "G", Bamako, Mali
| | - Seybou H Diallo
- Faculté de Médecine et d'Odontostomatologie, USTTB, Bamako, Mali.,Service de Neurologie, CHU de Gabriel Touré, Bamako, Mali
| | | | | | | | - Souleymane Dit Papa Coulibaly
- Faculté de Médecine et d'Odontostomatologie, USTTB, Bamako, Mali.,Service de Psychiatrie, CHU du Point "G", Bamako, Mali
| | - Fousseyni Kané
- Faculté de Médecine et d'Odontostomatologie, USTTB, Bamako, Mali
| | - Thomas Coulibaly
- Faculté de Médecine et d'Odontostomatologie, USTTB, Bamako, Mali.,Service de Neurologie, CHU du Point "G", Bamako, Mali
| | | | - Abdoulaye Taméga
- Faculté de Médecine et d'Odontostomatologie, USTTB, Bamako, Mali
| | | | - Salimata Diarra
- Faculté de Médecine et d'Odontostomatologie, USTTB, Bamako, Mali.,Service de Psychiatrie, CHU du Point "G", Bamako, Mali
| | | | - Alassane B Maiga
- Faculté de Médecine et d'Odontostomatologie, USTTB, Bamako, Mali
| | - Cheick A K Cissé
- Faculté de Médecine et d'Odontostomatologie, USTTB, Bamako, Mali
| | - Oumou Traoré
- Faculté de Médecine et d'Odontostomatologie, USTTB, Bamako, Mali
| | | | - Cheick O Guinto
- Faculté de Médecine et d'Odontostomatologie, USTTB, Bamako, Mali.,Service de Neurologie, CHU du Point "G", Bamako, Mali
| | - Youssoufa Maiga
- Faculté de Médecine et d'Odontostomatologie, USTTB, Bamako, Mali.,Service de Neurologie, CHU de Gabriel Touré, Bamako, Mali
| | - Guida Landouré
- Faculté de Médecine et d'Odontostomatologie, USTTB, Bamako, Mali.,Service de Neurologie, CHU du Point "G", Bamako, Mali.,Neurogenetics Branch, NINDS, NIH, Bethesda, MD, USA
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Cissé CAK, Cissé L, Ba HO, Samassékou O, Simaga A, Taméga A, Diarra S, Diallo SH, Coulibaly T, Diallo S, Yalcouyé A, Maiga AB, Keita M, Fischbeck KH, Traoré SF, Guinto CO, Landouré G. Friedreich ataxia in a family from Mali, West Africa/Friedreich ataxia in a Malian family. Clin Case Rep 2021; 9:e04065. [PMID: 34084490 PMCID: PMC8142306 DOI: 10.1002/ccr3.4065] [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] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2021] [Accepted: 03/07/2021] [Indexed: 11/10/2022] Open
Abstract
Friedreich ataxia is the most common inherited ataxia in the world, but yet to be reported in black African. We report the first genetically confirmed case in a West African family. Studying genetic diseases in populations with diverse backgrounds may give new insights into their pathophysiology for future therapeutic targets.
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Affiliation(s)
| | - Lassana Cissé
- Service de NeurologieCentre Hospitalier Universitaire du Point “G”BamakoMali
| | - Hamidou O. Ba
- Faculté de Médecine et d'OdontostomatologieUSTTBBamakoMali
- Service de CardiologieCentre Hospitalier Universitaire de Gabriel TouréBamakoMali
| | | | - Assiatou Simaga
- Faculté de Médecine et d'OdontostomatologieUSTTBBamakoMali
- Institut d’Ophtalmologie Tropicale d’AfriqueBamakoMali
| | | | - Salimata Diarra
- Faculté de Médecine et d'OdontostomatologieUSTTBBamakoMali
- Neurogenetics BranchNINDSNIHBethesdaMDUSA
| | - Seybou H. Diallo
- Faculté de Médecine et d'OdontostomatologieUSTTBBamakoMali
- Service de NeurologieCentre Hospitalier Universitaire de Gabriel TouréBamakoMali
| | - Thomas Coulibaly
- Faculté de Médecine et d'OdontostomatologieUSTTBBamakoMali
- Service de NeurologieCentre Hospitalier Universitaire du Point “G”BamakoMali
| | - Salimata Diallo
- Service de NeurologieCentre Hospitalier Universitaire de Gabriel TouréBamakoMali
| | | | | | - Mohamed Keita
- Faculté de Médecine et d'OdontostomatologieUSTTBBamakoMali
- Service d’ORLCentre Hospitalier Universitaire de Gabriel TouréBamakoMali
| | | | - Sékou F. Traoré
- Malaria Research and Training CenterDepartment of EntomologyUSTTBBamakoMali
| | - Cheick O. Guinto
- Faculté de Médecine et d'OdontostomatologieUSTTBBamakoMali
- Service de NeurologieCentre Hospitalier Universitaire du Point “G”BamakoMali
| | - Guida Landouré
- Faculté de Médecine et d'OdontostomatologieUSTTBBamakoMali
- Service de NeurologieCentre Hospitalier Universitaire du Point “G”BamakoMali
- Neurogenetics BranchNINDSNIHBethesdaMDUSA
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