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A Dominican neonate carrying a new abnormal hemoglobin, hemoglobin Roseau Pointe-a-Pitre α 2 β 2 90 (F6) Glu -> Gly, was detected in Guadeloupe during application of a cord blood screening program. This variant behaved in isoelectrofocusing as an Hb D, and displayed instability and low whole blood oxygen affinity. In the affected family it was present, either isolated, or in association...
A new abnormal hemoglobin was found in a diabetic Maltese woman by citrate agar electrophoresis. This variant was undetectable by isoelectric focusing. No hematological abnormalities were observed. The structural analysis included isolation of the abnormal β chain, high pressure liquid chromatography of the corresponding tryptic peptides and then microsequencing of the abnormal T 1 . These...
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