Hemoglobin J-Baltimore (beta 16(A13)Gly----Asp): interference with the assay of HbA1c. 1987

F Vandenesch, and F Baklouti, and A Francina, and C Vianey-Liaud, and A Bertrand, and C Le Dévéhat, and J Delaunay
CNRS UA 1171, Faculté de Médecine Grange-Blanche, Lyon, France.

Three independent cases of Hemoglobin J-Baltimore(beta 16(A13)Gly----Asp) were detected through the assay of HbA1c in diabetic patients. Using chromatography on Bio-Rex 70 resin, one large peak replaced the usually well resolved peaks of HbA1a + b and HbA1c. The species that overlapped the latter fractions was identified as HbJ1c. HbJ-Baltimore itself was identified using HPLC of the beta-chain tryptic peptides. This observation emphasizes the errors that hemoglobin variants may introduce in the assay of HbA1c.

UI MeSH Term Description Entries
D007525 Isoelectric Focusing Electrophoresis in which a pH gradient is established in a gel medium and proteins migrate until they reach the site (or focus) at which the pH is equal to their isoelectric point. Electrofocusing,Focusing, Isoelectric
D008297 Male Males
D008875 Middle Aged An adult aged 45 - 64 years. Middle Age
D002851 Chromatography, High Pressure Liquid Liquid chromatographic techniques which feature high inlet pressures, high sensitivity, and high speed. Chromatography, High Performance Liquid,Chromatography, High Speed Liquid,Chromatography, Liquid, High Pressure,HPLC,High Performance Liquid Chromatography,High-Performance Liquid Chromatography,UPLC,Ultra Performance Liquid Chromatography,Chromatography, High-Performance Liquid,High-Performance Liquid Chromatographies,Liquid Chromatography, High-Performance
D003920 Diabetes Mellitus A heterogeneous group of disorders characterized by HYPERGLYCEMIA and GLUCOSE INTOLERANCE.
D005189 False Positive Reactions Positive test results in subjects who do not possess the attribute for which the test is conducted. The labeling of healthy persons as diseased when screening in the detection of disease. (Last, A Dictionary of Epidemiology, 2d ed) False Positive Reaction,Positive Reaction, False,Positive Reactions, False,Reaction, False Positive,Reactions, False Positive
D006442 Glycated Hemoglobin Products of non-enzymatic reactions between GLUCOSE and HEMOGLOBIN (occurring as a minor fraction of the hemoglobin of ERYTHROCYTES.) It generally refers to glycated HEMOGLOBIN A. Hemoglobin A1c (Hb A1c) is hemoglobin A with GLYCATION on a terminal VALINE of the beta chain. Glycated hemoglobin A is used as an index of the average blood sugar level over a lifetime of erythrocytes. Fructated Hemoglobins,Glycohemoglobin,Glycohemoglobin A,Glycohemoglobins,Glycosylated Hemoglobin A,Hb A1c,HbA1,Hemoglobin A(1),Hemoglobin A, Glycosylated,Glycated Hemoglobin A,Glycated Hemoglobin A1c,Glycated Hemoglobins,Glycosylated Hemoglobin A1c,Hb A1,Hb A1a+b,Hb A1a-1,Hb A1a-2,Hb A1b,Hemoglobin, Glycated A1a-2,Hemoglobin, Glycated A1b,Hemoglobin, Glycosylated,Hemoglobin, Glycosylated A1a-1,Hemoglobin, Glycosylated A1b,A1a-1 Hemoglobin, Glycosylated,A1a-2 Hemoglobin, Glycated,A1b Hemoglobin, Glycated,A1b Hemoglobin, Glycosylated,Glycated A1a-2 Hemoglobin,Glycated A1b Hemoglobin,Glycosylated A1a-1 Hemoglobin,Glycosylated A1b Hemoglobin,Glycosylated Hemoglobin,Hemoglobin A, Glycated,Hemoglobin A1c, Glycated,Hemoglobin A1c, Glycosylated,Hemoglobin, Glycated,Hemoglobin, Glycated A1a 2,Hemoglobin, Glycosylated A1a 1,Hemoglobins, Fructated,Hemoglobins, Glycated
D006448 Hemoglobin J A group of abnormal hemoglobins with similar electrophoretic characteristics. They have faster electrophoretic mobility and different amino acid substitutions in either the alpha or beta chains than normal adult hemoglobin. Some of the variants produce hematologic abnormalities, others result in no clinical disorders.
D006455 Hemoglobins, Abnormal Hemoglobins characterized by structural alterations within the molecule. The alteration can be either absence, addition or substitution of one or more amino acids in the globin part of the molecule at selected positions in the polypeptide chains. Abnormal Hemoglobins
D006801 Humans Members of the species Homo sapiens. Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man

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