title: Alpha-1-antitrypsin: frequencies of PiM subtypes and serum concentration in the Japanese population.
abstract: PiM subtypes were determined by isoelectric focusing of the sera of 746 Japanese at the age of 16-60 years. The gene frequencies were calculated: PiM1 = 0.7855, PiM2 = 0.1528 and PiM3 = 0.0617. The serum concentration of alpha-1-antitrypsin was measured by laser-nephelometric immunoassay of the sera of 284 individuals. A statistically significant difference (p less than 0.01) in the serum concentration was found between M1 (2.63 +/- 0.67 g/l) and M1M2 (2.39 +/- 0.59 g/l).
mesh_terms: D000293:Adolescent; D000328:Adult; D005787:Gene Frequency; D006801:Humans; D007525:Isoelectric Focusing; D007564:Japan; D008875:Middle Aged; D010641:Phenotype; D000515:alpha 1-Antitrypsin / Q000032:analysis / Q000235:genetics*; D019896:alpha 1-Antitrypsin Deficiency
chemical_list: D000515:alpha 1-Antitrypsin