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Elidrissi Errahhali M, Elidrissi Errahhali M, Ramdani S, Lhousni S, Benajiba N, Rkain M, Babakhouya A, Elouali A, Ghanam A, Amrani R, Messaoudi S, Ayyad A, Oneib B, Mimouni A, Saadi H, Allaoui S, Ouarzane M, Guichet A, Charif M, Boulouiz R, Bellaoui M. First report on chromosomal abnormalities in Eastern Morocco: Identification of a new case of a de novo partial trisomy 13q using single-nucleotide polymorphism array. Arch Pediatr 2024; 31:112-116. [PMID: 38262863 DOI: 10.1016/j.arcped.2023.10.002] [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: 04/06/2023] [Revised: 09/21/2023] [Accepted: 10/14/2023] [Indexed: 01/25/2024]
Abstract
BACKGROUND Chromosomal abnormalities are the main cause of birth defects, intellectual disability, and miscarriages. They contribute to significant human morbidity and infant mortality. Here we report for the first time the chromosomal abnormalities encountered in the population of Eastern Morocco. Furthermore, we describe a new case of a de novo partial trisomy 13q combined with a terminal deletion in an 11-day-old girl. METHODS From November 2015 to March 2022, 195 patients from the BRO Biobank who were clinically suspected of having chromosomal abnormalities were referred to the cytogenetics laboratory of the Genetics Unit of the Faculty of Medicine and Pharmacy of Oujda for cytogenetic study. Karyotyping analysis was performed on peripheral blood samples using standard R banding techniques. To identify single-nucleotide polymorphism (SNP) and copy number variants (CNVs), Illumina SNP array was used. RESULTS Among 195 studied cases, 32 (16.4 %) had abnormal karyotypes, of which 12 cases had numerical aberrations while 20 cases had structural aberrations. The most common numerical aberrations were Turner syndrome and Down syndrome followed by Edward, Patau, and Klinefelter syndromes. For structural aberrations, translocations were the most common, followed by derivative chromosomes, inversions, deletions, and an addition on chromosome 13 identified in an 11-day-old girl. To further characterize this addition, SNP array was carried out and revealed a 58.8-Mb duplication in region 13q14.3q34 associated with a 1-Mb deletion in region 13q34. Follow-up parental chromosomes analysis showed normal karyotypes for the parents, confirming that this partial trisomy 13q was de novo. Comparison of the phenotype associated with this novel duplication on chromosome 13q with those previously reported confirmed the considerable variability in the phenotype of the patients with partial trisomy 13q. CONCLUSION This study provided the first report on chromosomal abnormalities in Eastern Morocco and it enriched the phenotype spectrum of partial trisomy 13q and further confirmed the genotype-phenotype correlations. Furthermore, these findings justify the need to set up microarray comparative genomic hybridization techniques in Morocco for better genetic diagnosis.
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Affiliation(s)
- Manal Elidrissi Errahhali
- Genetics Unit, Medical Sciences Research Laboratory, Faculty of Medicine and Pharmacy, University Mohammed Premier, Oujda, Morocco; BRO Biobank, Faculty of Medicine and Pharmacy, University Mohammed Premier, Oujda, Morocco
| | - Mounia Elidrissi Errahhali
- Genetics Unit, Medical Sciences Research Laboratory, Faculty of Medicine and Pharmacy, University Mohammed Premier, Oujda, Morocco; BRO Biobank, Faculty of Medicine and Pharmacy, University Mohammed Premier, Oujda, Morocco
| | - Sara Ramdani
- Genetics Unit, Medical Sciences Research Laboratory, Faculty of Medicine and Pharmacy, University Mohammed Premier, Oujda, Morocco
| | - Saida Lhousni
- Genetics Unit, Medical Sciences Research Laboratory, Faculty of Medicine and Pharmacy, University Mohammed Premier, Oujda, Morocco; BRO Biobank, Faculty of Medicine and Pharmacy, University Mohammed Premier, Oujda, Morocco
| | - Noufissa Benajiba
- Department of Pediatrics, Mohammed VI University Hospital, Faculty of Medicine and Pharmacy, University Mohammed Premier, Oujda, Morocco
| | - Maria Rkain
- Department of Pediatrics, Mohammed VI University Hospital, Faculty of Medicine and Pharmacy, University Mohammed Premier, Oujda, Morocco
| | - Abdeladim Babakhouya
- Department of Pediatrics, Mohammed VI University Hospital, Faculty of Medicine and Pharmacy, University Mohammed Premier, Oujda, Morocco
| | - Aziza Elouali
- Department of Pediatrics, Mohammed VI University Hospital, Faculty of Medicine and Pharmacy, University Mohammed Premier, Oujda, Morocco
| | - Ayad Ghanam
- Department of Pediatrics, Mohammed VI University Hospital, Faculty of Medicine and Pharmacy, University Mohammed Premier, Oujda, Morocco
| | - Rim Amrani
- Department of Neonatology, Mohammed VI University Hospital, Faculty of Medicine and Pharmacy, University Mohammed Premier, Oujda, Morocco
| | - Sahar Messaoudi
- Department of Neonatology, Mohammed VI University Hospital, Faculty of Medicine and Pharmacy, University Mohammed Premier, Oujda, Morocco
| | - Anass Ayyad
- Department of Neonatology, Mohammed VI University Hospital, Faculty of Medicine and Pharmacy, University Mohammed Premier, Oujda, Morocco
| | - Bouchra Oneib
- Department of Psychiatry, Mohammed VI University Hospital, Faculty of Medicine and Pharmacy, University Mohammed Premier, Oujda, Morocco
| | - Ahmed Mimouni
- Department of Gynecology and Obstetrics, Mohammed VI University Hospital, Faculty of Medicine and Pharmacy, University Mohammed Premier, Oujda, Morocco
| | - Hanane Saadi
- Department of Gynecology and Obstetrics, Mohammed VI University Hospital, Faculty of Medicine and Pharmacy, University Mohammed Premier, Oujda, Morocco
| | - Sanae Allaoui
- Department of Pediatrics, El Farabi Hospital, Oujda, Morocco
| | - Meryem Ouarzane
- Genetics Unit, Medical Sciences Research Laboratory, Faculty of Medicine and Pharmacy, University Mohammed Premier, Oujda, Morocco; BRO Biobank, Faculty of Medicine and Pharmacy, University Mohammed Premier, Oujda, Morocco
| | - Agnès Guichet
- Departments of Genetics, University Hospital Angers, 49933 Angers, France
| | - Majida Charif
- Genetics Unit, Medical Sciences Research Laboratory, Faculty of Medicine and Pharmacy, University Mohammed Premier, Oujda, Morocco; BRO Biobank, Faculty of Medicine and Pharmacy, University Mohammed Premier, Oujda, Morocco; Genetic and Immuno-Cell Therapy Team, Mohammed First University, Oujda 60000, Morocco
| | - Redouane Boulouiz
- Genetics Unit, Medical Sciences Research Laboratory, Faculty of Medicine and Pharmacy, University Mohammed Premier, Oujda, Morocco; BRO Biobank, Faculty of Medicine and Pharmacy, University Mohammed Premier, Oujda, Morocco
| | - Mohammed Bellaoui
- Genetics Unit, Medical Sciences Research Laboratory, Faculty of Medicine and Pharmacy, University Mohammed Premier, Oujda, Morocco; BRO Biobank, Faculty of Medicine and Pharmacy, University Mohammed Premier, Oujda, Morocco.
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Leone PE, Pérez-Villa A, Yumiceba V, Hernández MÁ, García-Cárdenas JM, Armendáriz-Castillo I, Guerrero S, Guevara-Ramírez P, López-Cortés A, Zambrano AK, García JL, Hernández JM, Paz-Y-Miño C. De Novo Duplication of Chromosome 9p in a Female Infant: Phenotype and Genotype Correlation. J Pediatr Genet 2020; 9:69-75. [PMID: 31976149 DOI: 10.1055/s-0039-1696970] [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] [Received: 01/30/2019] [Accepted: 08/01/2019] [Indexed: 10/26/2022]
Abstract
Trisomy 9p syndrome is the fourth most frequent chromosome aberration seen in infants. Duplication of the critical region 9p22p24 leads to mental retardation, psychomotor delay, and craniofacial and digital anomalies. We report a 2-year-old Ecuadorian girl with Trisomy 9p syndrome. Although her phenotype shares characteristics of Noonan syndrome, Giemsa trypsin banding technique shows there is an extra chromosomal segment on chromosome 14, and array analysis shows that it belongs to a duplication of 38 Mb of 9p13.1p24.3. Fluorescence in situ hybridization analysis detected three signals from 9p chromosome. The duplication is de novo, being another unique case of the few reported in the literature.
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Affiliation(s)
- Paola E Leone
- Centro de Investigación Genética y Genómica, Facultad de Ciencias de la Salud Eugenio Espejo, Universidad UTE, Mariscal Sucre Avenue, Quito, Ecuador
| | - Andy Pérez-Villa
- Centro de Investigación Genética y Genómica, Facultad de Ciencias de la Salud Eugenio Espejo, Universidad UTE, Mariscal Sucre Avenue, Quito, Ecuador
| | - Verónica Yumiceba
- Centro de Investigación Genética y Genómica, Facultad de Ciencias de la Salud Eugenio Espejo, Universidad UTE, Mariscal Sucre Avenue, Quito, Ecuador
| | - María Ángeles Hernández
- Institute of Molecular and Cellular Biology of Cancer, University of Salamanca, Salamanca, Spain.,Department of Medicine, Molecular Medicine Unit, Biomedical Research Institute of Salamanca, Salamanca, Spain
| | - Jennyfer M García-Cárdenas
- Centro de Investigación Genética y Genómica, Facultad de Ciencias de la Salud Eugenio Espejo, Universidad UTE, Mariscal Sucre Avenue, Quito, Ecuador
| | - Isaac Armendáriz-Castillo
- Centro de Investigación Genética y Genómica, Facultad de Ciencias de la Salud Eugenio Espejo, Universidad UTE, Mariscal Sucre Avenue, Quito, Ecuador
| | - Santiago Guerrero
- Centro de Investigación Genética y Genómica, Facultad de Ciencias de la Salud Eugenio Espejo, Universidad UTE, Mariscal Sucre Avenue, Quito, Ecuador
| | - Patricia Guevara-Ramírez
- Centro de Investigación Genética y Genómica, Facultad de Ciencias de la Salud Eugenio Espejo, Universidad UTE, Mariscal Sucre Avenue, Quito, Ecuador
| | - Andrés López-Cortés
- Centro de Investigación Genética y Genómica, Facultad de Ciencias de la Salud Eugenio Espejo, Universidad UTE, Mariscal Sucre Avenue, Quito, Ecuador
| | - Ana Karina Zambrano
- Centro de Investigación Genética y Genómica, Facultad de Ciencias de la Salud Eugenio Espejo, Universidad UTE, Mariscal Sucre Avenue, Quito, Ecuador
| | - Juan Luis García
- Institute of Molecular and Cellular Biology of Cancer, University of Salamanca, Salamanca, Spain.,Department of Medicine, Molecular Medicine Unit, Biomedical Research Institute of Salamanca, Salamanca, Spain
| | - Jesús María Hernández
- Department of Medicine, Molecular Medicine Unit, Biomedical Research Institute of Salamanca, Salamanca, Spain.,Servicio de Hematología, Hospital Universitario de Salamanca, Universidad de Salamanca, Salamanca, Spain
| | - César Paz-Y-Miño
- Centro de Investigación Genética y Genómica, Facultad de Ciencias de la Salud Eugenio Espejo, Universidad UTE, Mariscal Sucre Avenue, Quito, Ecuador
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Paz-Y-Miño C, Yumiceba V, Moreta G, Paredes R, Ruiz M, Ocampo L, Llamos Paneque A, Ochoa Pérez C, Ruiz-Cabezas JC, Álvarez Vidal J, Jiménez Torres I, Vargas-Vera R, Cruz F, Guapi N VH, Montalván M, Meneses Álvarez S, Garzón Castro M, Lamar Segura E, Recalde Báez MA, Naranjo ME, Tambaco Jijón N, Sinche M, Licuy P, Burgos R, Porras-Borja F, Echeverría-Garcés G, Pérez-Villa A, Armendáriz-Castillo I, García-Cárdenas JM, Guerrero S, Guevara-Ramírez P, López-Cortés A, Zambrano AK, Leone PE. Multi-institutional experience of genetic diagnosis in Ecuador: National registry of chromosome alterations and polymorphisms. Mol Genet Genomic Med 2019; 8:e1087. [PMID: 31830383 PMCID: PMC7005643 DOI: 10.1002/mgg3.1087] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2019] [Revised: 11/06/2019] [Accepted: 11/14/2019] [Indexed: 01/28/2023] Open
Abstract
BACKGROUND Detection of chromosomal abnormalities is crucial in various medical areas; to diagnose birth defects, genetic disorders, and infertility, among other complex phenotypes, in individuals across a wide range of ages. Hence, the present study wants to contribute to the knowledge of type and frequency of chromosomal alterations and polymorphisms in Ecuador. METHODS Cytogenetic registers from different Ecuadorian provinces have been merged and analyzed to construct an open-access national registry of chromosome alterations and polymorphisms. RESULTS Of 28,806 karyotypes analyzed, 6,008 (20.9%) exhibited alterations. Down syndrome was the most frequent autosome alteration (88.28%), followed by Turner syndrome (60.50%), a gonosome aneuploidy. A recurrent high percentage of Down syndrome mosaicism (7.45%) reported here, as well as by previous Ecuadorian preliminary registries, could be associated with geographic location and admixed ancestral composition. Translocations (2.46%) and polymorphisms (7.84%) were not as numerous as autosomopathies (64.33%) and gonosomopathies (25.37%). Complementary to conventional cytogenetics tests, molecular tools have allowed identification of submicroscopic alterations regions or candidate genes which can be possibly implicated in patients' symptoms and phenotypes. CONCLUSION The Ecuadorian National Registry of Chromosome Alterations and Polymorphisms provides a baseline to better understand chromosomal abnormalities in Ecuador and therefore their clinical management and awareness. This data will guide public policy makers to promote and financially support cytogenetic and genetic testing.
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Affiliation(s)
- César Paz-Y-Miño
- Centro de Investigación Genética y Genómica, Facultad de Ciencias de la Salud Eugenio Espejo, Universidad UTE, Quito, Ecuador
| | - Verónica Yumiceba
- Centro de Investigación Genética y Genómica, Facultad de Ciencias de la Salud Eugenio Espejo, Universidad UTE, Quito, Ecuador
| | - Germania Moreta
- Servicio de Genética Médica, Hospital de Especialidades, Quito, Ecuador
| | - Rosario Paredes
- Servicio de Genética Médica, Hospital de Especialidades, Quito, Ecuador
| | | | - Ligia Ocampo
- Laboratorio de Genética, Génica Laboratorios, Quito, Ecuador
| | | | | | - Juan Carlos Ruiz-Cabezas
- Hospital "Dr. Juan Tanca Marengo", SOLCA Matriz, Guayaquil, Ecuador.,Facultad de Medicina, Universidad Espíritu Santo, Guayaquil, Ecuador
| | - Jenny Álvarez Vidal
- Centro de Diagnóstico y Estudios Biomédicos, Facultad de Ciencia Médicas, Universidad de Cuenca, Cuenca, Ecuador
| | | | - Ramón Vargas-Vera
- Facultad de Ciencias Médicas, Universidad de Guayaquil, Guayaquil, Ecuador
| | - Fernando Cruz
- Centro de Genética Médica, CEGEMED, Ministerio de Salud Pública, Quito, Ecuador
| | - Víctor Hugo Guapi N
- Hospital General Provincial "Luis G. Dávila", Ministerio de Salud Pública, Tulcán, Ecuador
| | - Martha Montalván
- Centro de Investigaciones, Universidad Espíritu Santo, Guayaquil, Ecuador
| | | | | | | | | | | | | | - María Sinche
- Hospital "Dr. Juan Tanca Marengo", SOLCA Matriz, Guayaquil, Ecuador
| | - Pedro Licuy
- Hospital "Dr. Juan Tanca Marengo", SOLCA Matriz, Guayaquil, Ecuador
| | - Ramiro Burgos
- Hospital "Dr. Juan Tanca Marengo", SOLCA Matriz, Guayaquil, Ecuador
| | - Fabián Porras-Borja
- Centro de Genética Médica, CEGEMED, Ministerio de Salud Pública, Quito, Ecuador
| | | | - Andy Pérez-Villa
- Centro de Investigación Genética y Genómica, Facultad de Ciencias de la Salud Eugenio Espejo, Universidad UTE, Quito, Ecuador
| | - Isaac Armendáriz-Castillo
- Centro de Investigación Genética y Genómica, Facultad de Ciencias de la Salud Eugenio Espejo, Universidad UTE, Quito, Ecuador
| | - Jennyfer M García-Cárdenas
- Centro de Investigación Genética y Genómica, Facultad de Ciencias de la Salud Eugenio Espejo, Universidad UTE, Quito, Ecuador
| | - Santiago Guerrero
- Centro de Investigación Genética y Genómica, Facultad de Ciencias de la Salud Eugenio Espejo, Universidad UTE, Quito, Ecuador
| | - Patricia Guevara-Ramírez
- Centro de Investigación Genética y Genómica, Facultad de Ciencias de la Salud Eugenio Espejo, Universidad UTE, Quito, Ecuador
| | - Andrés López-Cortés
- Centro de Investigación Genética y Genómica, Facultad de Ciencias de la Salud Eugenio Espejo, Universidad UTE, Quito, Ecuador
| | - Ana Karina Zambrano
- Centro de Investigación Genética y Genómica, Facultad de Ciencias de la Salud Eugenio Espejo, Universidad UTE, Quito, Ecuador
| | - Paola E Leone
- Centro de Investigación Genética y Genómica, Facultad de Ciencias de la Salud Eugenio Espejo, Universidad UTE, Quito, Ecuador
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Paz-Y-Miño C, Guillen Sacoto MJ, Leone PE. Genetics and genomic medicine in Ecuador. Mol Genet Genomic Med 2015; 4:9-17. [PMID: 26788533 PMCID: PMC4707029 DOI: 10.1002/mgg3.192] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022] Open
Affiliation(s)
- César Paz-Y-Miño
- Instituto de Investigaciones Biomédicas Universidad de las Américas Quito Ecuador
| | - María J Guillen Sacoto
- National Human Genome Research Institute National Institutes of Health Bethesda Maryland USA
| | - Paola E Leone
- Instituto de Investigaciones Biomédicas Universidad de las Américas Quito Ecuador
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