Title |
Combination of a triple alpha-globin gene with beta-thalassemia in a gypsy family: importance of the genetic testing in the diagnosis and search for a donor for bone marrow transplantation for one of their children
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Published in |
BMC Research Notes, April 2016
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DOI | 10.1186/s13104-016-2027-1 |
Pubmed ID | |
Authors |
Flor Yus Cebrian, María del Valle Recasens Flores, Silvia Izquierdo Álvarez, Ingrid Parra Salinas, Carmen Rodriguez-Vigil Iturrate |
Abstract |
The simultaneous presence of a heterozygous β-thalassemia with α-gene triplication may cause anything from a thalassemia trait to thalassemia intermedia of mild to moderate severity. An 8-month-old ethnic Gypsy male infant with failure to thrive from birth, mild jaundice and splenomegaly. Clinical signs were compatible with severe microcytic anemia requiring bi-monthly blood transfusions. The β-thalassemia gene analysis found homozygous mutation IVS-I-110 (G>A) (c.93-21G>A) in intron 1 of the hemoglobin beta globin gene and a non-pathogenic sequence variant (single nucleotide polimorfism (SNP) Rs1609812). In addition, the patient had α gene triplication (ααα(anti 3.7)/αα) caused by double heterozygosity for a 3.7 kb fragment that contained only the hemoglobin alpha globin gene-2 gene. This finding led to screening and follow up in first-degree relatives, twin brothers and a sister and parents to provide them with appropriate genetic counseling. Nowadays, new horizons could open a new therapeutic management until definitive cure of these diseases through gene therapy or mutation-specific genome editing. Genetic testing can provide an early diagnosis and facilitates the search for a suitable donor for transplantation. |
Mendeley readers
Geographical breakdown
Country | Count | As % |
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Unknown | 29 | 100% |
Demographic breakdown
Readers by professional status | Count | As % |
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Researcher | 6 | 21% |
Student > Master | 5 | 17% |
Student > Bachelor | 4 | 14% |
Student > Ph. D. Student | 3 | 10% |
Other | 3 | 10% |
Other | 3 | 10% |
Unknown | 5 | 17% |
Readers by discipline | Count | As % |
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Biochemistry, Genetics and Molecular Biology | 8 | 28% |
Medicine and Dentistry | 6 | 21% |
Nursing and Health Professions | 3 | 10% |
Pharmacology, Toxicology and Pharmaceutical Science | 1 | 3% |
Agricultural and Biological Sciences | 1 | 3% |
Other | 4 | 14% |
Unknown | 6 | 21% |