title: Immunoglobulin levels in human colostrum and milk.
abstract: The levels of secretory IgA and of IgM and IgG in colostrums and milks obtained at various times postpartum were measured by radial immunodiffusion. Immunoglobulin A was the dominant immunoglobulin in all samples, and concentrations in colostrum ranged from 1.5 to 83.7 g/L (mean 32 g/L). Immunoglobulin M and IgG had mean colostrum concentrations of 1.13 and 0.53 g/L, respectively. Although the levels of each immunoglobulin declined with time postpartum, there was little change in the relative proportion of the immunoglobulin classes present.
mesh_terms: D003126:Colostrum / Q000276:immunology*; D005260:Female; D006801:Humans; D007070:Immunoglobulin A / Q000032:analysis; D007074:Immunoglobulin G / Q000032:analysis; D007075:Immunoglobulin M / Q000032:analysis; D007136:Immunoglobulins / Q000032:analysis*; D008895:Milk, Human / Q000276:immunology*; D013997:Time Factors
chemical_list: D007070:Immunoglobulin A; D007074:Immunoglobulin G; D007075:Immunoglobulin M; D007136:Immunoglobulins