Description
IgA is the most abundant immunoglobulin in body fluids and the second most abundant immunoglobulin in plasma, found at a concentration of 0.4 to 2.2 mg/ml. It plays a very important role in the first specific defense against natural infection. Secretory IgA differs from serum IgA in that it contains two additional peptides: the secretory component and the J chain. Prepared from plasma shown to be non reactive for HBsAg, anti-HCV, anti-HBc, and negative for anti-HIV 1 & 2 by FDA-required tests. Product Citations:Bidgood SR, et al. Translocalized IgA mediates neutralization and stimulates innate immunity inside infected cells. Proc Natl Acad Sci U S A. 2014 Sep 16;111(37):13463-8. doi: 10.1073/pnas.1410980111. Epub 2014 Aug 28.Herati RS, et al. Circulating CXCR5+PD-1+ Response Predicts Influenza Vaccine Antibody Responses in Young Adults but not Elderly Adults. J Immunol. 2014 Oct 1;193(7):3528-37. doi: 10.4049/jimmunol.1302503. Epub 2014 Aug 29