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  • Title: [The association of beta zero-thalassemia and Hb D Punjab in a family of Indian origin. The second case reported in Spain].
    Author: Ropero P, González FA, Sánchez J, Armada B, Martí E, Valdés B, Mora A, Villegas A.
    Journal: Med Clin (Barc); 1997 Mar 15; 108(10):385-8. PubMed ID: 9139146.
    Abstract:
    The present report described the hematologic and molecular study of the second case of Hb D-Punjab associated with a beta zero-thalassemia found in Spain and the first case in which the mutations have been identified at molecular level. A family from India is studied, which is constituted by mother (I2) and 3 children (II1, II2 and II3). The molecular characterization of the hemoglobinopathy was made by electrophoretic and chromatographic techniques and confirmed by sequencing of the beta-globin gene. The mutation causer of the beta-thalassemia was studied by PCR-ARMS. The mother (I2) and one of her child (II2) are carriers of the gene for beta zero-thalassemia owing to the frameshift CD 8/9 mutation (+ G). Other of them (II1) is heterozygous for Hb D-Punjab without beta-thalassemia association. The third child (II3) knows a double heterozygote state for Hb D-Punjab/beta zero-thalassemia (hemoglobin D-thalassemia). In spite of the patient with hemoglobin D-thalassemia has 94.5% of Hb D, without Hb A, the hematologic picture belongs to thalassemia trait with moderate haemolytic anemia, intense microcytosis and hypochromia and numerous target cells. This hematologic picture discloses the mildness of the Hb D-Punjab, but the reliable responsible for the phenotype is the disbalance in the synthesis of globin chains, because of frameshift CD 8/9 mutation (+ G) beta zero-thalassemia mutation.
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