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  • Title: T-helper types 1, 2, and 3 cytokine interactions in symptomatic manic patients.
    Author: Kim YK, Myint AM, Lee BH, Han CS, Lee SW, Leonard BE, Steinbusch HW.
    Journal: Psychiatry Res; 2004 Dec 30; 129(3):267-72. PubMed ID: 15661320.
    Abstract:
    It has been reported that the balance between T-helper type 1 (Th1) cytokines and T-helper type 2 (Th2) cytokines plays a role in psychiatric disorders such as bipolar disorder. The T-helper type 3 (Th3) cytokine, which transforming growth factor beta-1 (TGF-beta1), has been shown to modulate the production of Th1 and Th2 cytokines. However, the role of TGF-beta1 in bipolar disorder has not yet been explored. A total of 70 manic patients with bipolar disorder and 96 normal controls was recruited. The plasma levels of IFN-gamma, IL-4, and TGF-beta1 were studied at the time of admission and 8 weeks after mood stabilizer treatment. The detection rate and plasma concentrations of IFN-gamma and IL-4 and the IFN-gamma/TGF-beta1 and IL-4/TGF-beta1 ratios were significantly higher in patients than in controls, while the TGF-beta1 level was significantly lower. The TGF-beta1 level increased significantly after treatment and the IFN-gamma/TGF-beta1 and IL-4/TGF-beta1 ratios returned to control values. TGF-beta1 may play a role in the pathophysiology of bipolar disorder through the action of TGF-beta1 in modulating the IL-4/TGF-beta1 ratio.
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