Detection of IgM and IgG Chlamydia and Mycoplasma pneumoniae indicates an aggravation of intracellular infections, including, possibly, due to immunosuppressive therapy. It is possible that the intracellular infection may mediate the occurrence of certain extraintestinal manifestations of inflammatory bowel disease (IBD), such as bronchitis, pneumonia, etc. Chronic persistent chlamydial and mycoplasmal infections lead to disruption of both cellular and humoral immunity, resulting in the formation of autoimmune processes in patients with IBD, and in the future--reduce the immune status against the immunosuppressive therapy. Detection of antibodies to Chlamydia and Mycoplasma pneumoniae accompanies with increased total immunoglobulin IgM, IgG in blood serum. Determining the level of proinflammatory and antiinflammatory cytokines in the acute stage of the disease allows to evaluate the activity of the inflammatory process and the nature of the immune response to intracellular infection.to prevent extraintestinal septic complications in patients with IgM antibodies to Chlamydia and Mycoplasma pneumoniae, is recommended to combine the long-term immunosuppressive therapy of IBD with antibiotic therapy, usually with macrolides.
