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For medications, the term immunosuppression generally refers to both beneficial and potential adverse effects of decreasing the function of the immune system, while the term immunodeficiency generally refers solely to the adverse effect of increased risk for infection. Many specific diseases directly or indirectly cause immunosuppression.
Immunosuppression is a reduction of the activation or efficacy of the immune system. Some portions of the immune system itself have immunosuppressive effects on other parts of the immune system, and immunosuppression may occur as an adverse reaction to treatment of other conditions.
Many other drugs including common antibiotics may cause bone marrow suppression. Unlike chemotherapy the effects may not be due to direct destruction of stem cells but the results may be equally serious. The treatment may mirror that of chemotherapy-induced myelosuppression or may be to change to an alternate drug or to temporarily suspend ...
Cyclophosphamide (Baxter's Cytoxan) is probably the most potent immunosuppressive compound. In small doses, it is very efficient in the therapy of systemic lupus erythematosus, autoimmune hemolytic anemias, granulomatosis with polyangiitis, and other immune diseases. High doses cause pancytopenia and hemorrhagic cystitis.
An opportunistic infection is an infection caused by pathogens (bacteria, fungi, parasites or viruses) that take advantage of an opportunity not normally available.These opportunities can stem from a variety of sources, such as a weakened immune system (as can occur in acquired immunodeficiency syndrome or when being treated with immunosuppressive drugs, as in cancer treatment), [1] an altered ...
Other predisposing conditions include splenectomy, neutropenia, immunosuppression, hypogammaglobinemia, leukemia, collagen vascular disease and cytotoxic drugs and diabetes mellitus. A preexisting infection caused by aerobic or facultative organisms can alter the local tissue conditions and make them more favorable for the growth of anaerobes.
Lymphoma and a variety of autoimmune diseases, although it may be ineffective in treating IgA-mediated diseases. [ 13 ] Cardiac arrest , cytokine release syndrome , tumor lysis syndrome and acute kidney injury , infections, [ 14 ] hepatitis B reactivation, immune toxicity, pulmonary toxicity, [ 15 ] bowel obstruction and perforation [ 16 ] [ 17 ...
The disease is characterized by hypogammaglobulinemia, frequent infections and the occurrence of autoimmune diseases. In individuals, the disease may manifest itself differently, with in some cases only a partial reduction in the number of Tregs , in others the ability to bind CTLA-4 ligand has been reduced, resulting in disruption homeostasis ...