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interferon gamma

   Also found in: Dictionary/thesaurus, Encyclopedia, Wikipedia, Hutchinson 0.06 sec.
interferon gamma IFN-γ A 21-25 kD glycoprotein lymphokine encoded on chromosome 12q and produced by activated T and NK cells; IFN-γ is antiviral, regulates class II MHC antigen expression, Fc receptors and immunoglobulin production and class switching, activates monocyte cytotoxicity and enhances NK cell activity; IFN-γ is ↓ in IgA deficiency, lymphoma, CLL, infections–eg, CMV, EBV, rubella, lepromatous leprosy, TB, SLE, rheumatoid arthritis, sickle cell anemia, post-transplantation Indications Recombinant IFN-γ is used to treat condylomata acuminata, CLL, Hodgkin's disease, mycosis fungoides, rheumatoid arthritis, and possibly leprosy, TB, nontuberculous mycobacterial infections, toxoplasmosis, chronic granulomatous disease–to prevent infections; IFN-γ suppresses collagen synthesis by fibroblasts, ↓ the size of keloids, causing a local ↑ in inflammatory cells and mucin production, and may be of use in controlling abnormal fibrosing conditions Side effects Acute renal failure, rash, headache, chills


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Previous evidence indicated that interferon gamma suppresses symptoms by preventing re-emergence of herpes virus, which lurks in the nervous system.
But new results suggest that interferon gamma production does not seem to correlate with reduced viral load or any other benefit to patients.
2) More recently, low-dose interferon gamma has been used in small studies with good results after 6 and 12 months.
 
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