Anti-MAA immunoglobulin isotypes in inflammatory bowel disease: novel diagnostic implications for ulcerative colitis
AssigneeBoard of Regents of the University of Nebraska
InventorsGeoffrey M. Thiele, Amar Singh, Michael J. Duryee, Rizwan Ahmad
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Abstract
In various embodiments methods of distinguishing Crohn's disease from ulcerative colitis are provided. In certain embodiments the methods comprise determining, or causing to be determined, the level of IgG antibodies that bind a malondialdehyde-acetaldehyde adduct (MAA adduct) in a biological sample from a mammal, where an elevated level of said antibodies as compared to the average level found in a mammal with Crohn's disease is an indicator that the mammal has ulcerative colitis rather than Crohn's disease.
Claims17
A method of treating a subject, the method comprising:
- detecting a level of immunoglobulin G (IgG) antibodies that bind a malondialdehyde-acetaldehyde (MAA) adduct in a biological sample of a human subject having at least one symptom of ulcerative colitis or Crohn's disease, wherein the biological sample is selected from the group consisting of whole blood, blood plasma, and blood serum;
- comparing the level of the IgG antibodies that bind the MAA adduct to an average level in another human subject with the Crohn's disease;
- determining that the level of the IgG antibodies that bind the MAA adduct is higher than the average level in the other human subject with the Crohn's disease;
- identifying the human subject as having the ulcerative colitis;
- and
- administering a pharmaceutical to the human subject to treat the ulcerative colitis.
Dependencies are inferred from the claim text.