1.   Other reports also suggest that in this disease there are circulating antibodies against antigens common to biliary and colonic epithelia.

2.   Circulating anticolon antibodies have been found in serum samples from patients with ulcerative colitis.

3.   Most significant to researchers, patients in both studies who took minocycline had profound decreases in rheumatoid factor, the circulating antibodies thought to give rise to joint destruction.