Blood donors

Frequency of the HFE C282Y and H63D polymorphisms in Brazilian malaria patients and blood donors from the Amazon region

F. R. Torres, Souza-Neiras, W. C., Couto, A. A. D. ’Almeid, Couto, V. S. C. D. ’Almeid, Cavasini, C. E., Rossit, A. R. B., Machado, R. L. D., and Bonini-Domingos, C. R., Frequency of the HFE C282Y and H63D polymorphisms in Brazilian malaria patients and blood donors from the Amazon region, vol. 7, pp. 60-64, 2008.

Malaria is an endemic parasitosis and its causitive agent, Plasmodium, has a metabolism linked to iron supply. HFE is a gene with the polymorphisms C282Y and H63D, which are associated with a progressive iron accumulation in the organism leading to a disease called hereditary hemochromatosis. The aim of the present study was to determine the allelic and genotypic frequencies of the HFE gene polymorphisms in malaria patients and blood donors from the Brazilian Amazon region.

Hemoglobin I-Philadelphia [alpha 16 (A14) LYS→GLU] heterozygote among blood donors from Brazil

F. R. Torres, Ondei, L. S., Silva, R. U., Cavasini, C. E., Bonini-Domingos, C. R., Zamaro, P. J. A., Rossit, A. R. B., and Machado, R. L. D., Hemoglobin I-Philadelphia [alpha 16 (A14) LYS→GLU] heterozygote among blood donors from Brazil, vol. 5. pp. 713-716, 2006.

We describe a heterozygous case of Hb I-Philadelphia [alpha 16 (A14) LYS→GLU] in a blood donor from the Acre State Blood Bank, in the Brazilian Amazon region. We confirmed the mutation by electrophoretic and chromatographic methods and by DNA sequencing. A literature search showed that this is the first description of this alpha globin mutant in a Brazilian Caucasian group. We also emphasize the importance of the hemoglobin study in blood donors for the purpose of the genetic counseling and quality assurance of the blood to be transfused.

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