MRI fistula resolution was variable and slower than clinical healing. Prolonged treatment is often required for internal track resolution. Preliminary data suggest once MRI healing has occurred fistulas remain healed, while remaining on, or stopping anti-TNFalpha therapy. The use of a second antibody is clinically valuable.
Combination anti-TNF and thiopurine therapy provides sustained benefit in patients with perianal CD fistula. Early clinical response is associated with subsequent clinical remission. Radiological healing is slower than clinical healing. Radiologically healed fistula tracts maintain healing on infliximab but can recur after cessation of therapy.
Despite small numbers of human colonic DC available, we showed that treatment of UC patients with probiotic VSL#3 and corticosteroids induced "favorable" intestinal DC function in vivo, increasing regulatory cytokines and lowering proinflammatory cytokines and TLR expression. These effects may contribute to therapeutic benefit.
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