title: Silver-stained phenotyping of alpha 1-antitrypsin in dried blood and serum specimens.
abstract: In this technique for determining the electrophoretic phenotype of alpha 1-antitrypsin in dried blood or serum specimens, the adsorbed material is eluted with a concentrated solution of dithiothreitol, focused on polyacrylamide thin-layer gel, and made visible with silver stain. With this staining technique all normal and pathological alpha 1-antitrypsin phenotypes can be detected. The procedure is relatively simple, inexpensive, and suitable for use in large-scale screening for alpha 1-antitrypsin deficiency in selected populations.
mesh_terms: D004591:Electrophoresis, Polyacrylamide Gel; D006801:Humans; D007525:Isoelectric Focusing; D010641:Phenotype; D012834:Silver; D013048:Specimen Handling; D013194:Staining and Labeling; D000515:alpha 1-Antitrypsin / Q000032:analysis / Q000235:genetics; D019896:alpha 1-Antitrypsin Deficiency
chemical_list: D000515:alpha 1-Antitrypsin; D012834:Silver