Saccharomyces cerevisiae Antibodies, IgG or IgA

Saccharomyces cerevisiae Antibodies, IgG or IgA, also known as Anti-Saccharomyces cerevisiae Antibodies (ASCA), is a test to help diagnose inflammatory bowel disease (IBD).

The results of ASCA test will be positive or negative.

A negative result suggests that the person may not have any IBD. On the other hand, a positive one suggests that the person is very likely to have an IBD.

Combined with the results of pANCA test, the possible interpretations are:

  • The positive ASCA result combined with a negative pANCA result predicts that the person probably has Crohn disease (CD), a type of IBD.
  • When ASCA result and pANCA result are both negative, the person is likely to have no IBD.
  • When ASCA result is negative while pANCA result is positive, the person probably has ulcerative colitis (UC), another type of IBD.


Keywords: Anti-Saccharomyces cerevisiae Antibodies (ASCA), Anti-Saccharomyces cerevisiae mannan antibodies, Saccharomyces cerevisiae Antibodies IgG or IgA

* The Content is not intended to be a substitute for professional medical advice, diagnosis, or treatment. Always seek the advice of your physician or other qualified health provider with any questions you may have regarding a medical condition.