The hemoglobin S is presented at Brazilian population with variable prevalence dependent of constitutive racial groups in each region. The electrophoretic migration on alkaline pH showed similarities with another hemoglobins. Complementary studies to the correct caracterization becomes necessary. At the present study we aimed make a fluxogram with the avaliable methodologies for the caracterization of hemoglobin S and hemoglobins that present similar migration on alkaline pH. During the period of January to June, 2000, we had analised blood samples with suspicious hemoglobin S sent to the Laboratory of Hemoglobins, Unesp. Were caracterized different mutants and interative forms with hemoglobin S by electrophoretic procedures on different pH, citologic anlysis and specific biochemical tests. The applyed analitical procedures result in a guide for the routine laboratories with laboratories with laboratorial diagnostic procedure for these hemoglobin alterations. Thus, we contributed to a better knowledge about genetic variability at the hemoglobins in our population, helping on the clinical attendance and genetic conseling of hemoglobinopathies with relation to physiological alterations.
Hemoglobin S; Hemoglobinopathies; Laboratorial diagnostic
