Systematic molecular analysis of hemophilia A patients from Colombia



Título del documento: Systematic molecular analysis of hemophilia A patients from Colombia
Revue: Genetics and molecular biology
Base de datos: PERIÓDICA
Número de sistema: 000424513
ISSN: 1415-4757
Autores: 1
3
2
4
Instituciones: 1Universidad Nacional de Colombia, Grupo de Patología Molecular, Bogotá. Colombia
2Fundación Hospital de la Misericordia, Bogotá. Colombia
3Universidad Nacional de Colombia, Grupo de Onco-Hematología Pediátrica, Bogotá. Colombia
4Universidad Nacional de Colombia, Departamento de Patología, Bogotá. Colombia
Año:
Periodo: Dic
Volumen: 41
Número: 4
Paginación: 750-757
País: Brasil
Idioma: Inglés
Tipo de documento: Artículo
Enfoque: Caso clínico
Resumen en inglés Abstract Hemophilia A (HA) is an X-linked recessive disorder and the second most common coagulation disorder with an incidence of 1 in 5,000 live born males. Worldwide, there are 178,500 affected individuals, 60% with the severe form ofthe disease. Intron 22 and 1 inversions (Inv22 and Inv1) are the most frequent molecular alterations found in severeHA patients with a frequency of 45-50% and 0.5-5%, respectively. We have implemented a systematic cost-effectivestrategy for the identification of the molecular alteration in HA patients using Inverse shifting-PCR for Inv22 and Inv1,followed by the analysis of theF8gene coding region by means of high resolution melting (HRM) PCR and Sangersequencing in Inv22 and Inv1 negative patients. A total of 33 male HA patients and 6 women were analyzed. Inversion 22 was detected in 14/33 male patients (42.4%), 3/33 (9.1%) had Inv1, 3/33 (9.1%) had large structural variants,and 11/33 (33.3%) single nucleotide/ small frameshift variants. No genetic variant was found in 2/33 patients (6%).With this systematic approach we detected pathogenic variants in 31 out of 33 male affected individuals (94%) tested for the first time. in a
Disciplinas: Medicina,
Química
Palabras clave: Genética,
Hematología,
Bioquímica,
Hemofilia A,
Factor VIII,
IS-PCR,
HRM,
Colombia
Keyword: Genetics,
Hematology,
Biochemistry,
Hemophilia A,
Factor VIII,
IS-PCR,
HRM,
Colombia
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