Saccharomyces cerevisiae Antibody (ASCA) (IgG) details
What Saccharomyces cerevisiae Antibody (ASCA) (IgG) shows
Saccharomyces cerevisiae (baker's/brewer's yeast) antibodies, IgG type, are sometimes elevated in Crohn's disease and, like the IgA version, are used as part of a broader antibody panel to help distinguish Crohn's disease from ulcerative colitis when inflammatory bowel disease is being evaluated. Testing both IgA and IgG forms together generally improves detection compared to either alone, though these antibodies are supportive evidence rather than a standalone diagnostic test.
Tests that include Saccharomyces cerevisiae Antibody (ASCA) (IgG)
The IBD Profile is used to help rule out Crohn's disease and ulcerative colitis.
- Atypical Perinuclear Antineutrophil Cytoplasmic Antibodies Looks for atypical pANCA, antibodies against white blood cell components that are often found in ulcerative colitis, to help evaluate inflammatory bowel disease.
- Saccharomyces cerevisiae Antibody (ASCA) (IgA) An antibody sometimes elevated in Crohn's disease, used as part of inflammatory bowel disease evaluation.
- Saccharomyces cerevisiae Antibody (ASCA) (IgG) An antibody sometimes elevated in Crohn's disease, used as part of inflammatory bowel disease evaluation.
Antibodies to Saccharomyces cerevisiae are found in approximately 75% of patients with Crohn's disease, 15% of patients with ulcerative colitis, and 5% of the healthy population. High titers of antibody increase the likelihood of disease, specifically Crohn's disease, and are associated with more aggressive disease.
- Saccharomyces cerevisiae Antibody (ASCA) (IgA) An antibody sometimes elevated in Crohn's disease, used as part of inflammatory bowel disease evaluation.
- Saccharomyces cerevisiae Antibody (ASCA) (IgG) An antibody sometimes elevated in Crohn's disease, used as part of inflammatory bowel disease evaluation.
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