Established serological markers of coeliac disease, including IgA antibody to TG2 and IgG and IgA antibodies to deamidated gliadin, were measured as previously described.24 (link)
25 (link)
Serum IgG, IgA and IgM antibodies to native gliadin were measured separately by ELISA as previously described,24 (link)
26 (link) with the following modification: the secondary antibodies were horseradish peroxidase (HRP)-conjugated anti-human IgG (GE Healthcare), IgA (MP Biomedicals) or IgM (MP Biomedicals). Serum IgG, IgA and IgM antibodies to bacterial flagellin were measured separately using a similar protocol for detecting antibodies to gliadin, with the following modification: plates were coated with a 2 μg/mL solution of highly purified flagellin from Salmonella typhimurium (InvivoGen).
Levels of serum IgG, IgA and IgM endotoxin-core antibodies (EndoCAb) (Hycult Biotech), lipopolysaccharide (LPS)-binding protein (LBP) (Hycult Biotech), soluble CD14 (sCD14) (R&D Systems) and fatty acid-binding protein 2 (FABP2) (R&D Systems) were determined by ELISA, according to the manufacturers' protocols.
25 (link)
Serum IgG, IgA and IgM antibodies to native gliadin were measured separately by ELISA as previously described,24 (link)
26 (link) with the following modification: the secondary antibodies were horseradish peroxidase (HRP)-conjugated anti-human IgG (GE Healthcare), IgA (MP Biomedicals) or IgM (MP Biomedicals). Serum IgG, IgA and IgM antibodies to bacterial flagellin were measured separately using a similar protocol for detecting antibodies to gliadin, with the following modification: plates were coated with a 2 μg/mL solution of highly purified flagellin from Salmonella typhimurium (InvivoGen).
Levels of serum IgG, IgA and IgM endotoxin-core antibodies (EndoCAb) (Hycult Biotech), lipopolysaccharide (LPS)-binding protein (LBP) (Hycult Biotech), soluble CD14 (sCD14) (R&D Systems) and fatty acid-binding protein 2 (FABP2) (R&D Systems) were determined by ELISA, according to the manufacturers' protocols.
