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Figure 10: A significant (*) increase of ragweed induced TGF-β1was found for the SLIT group at the end of 12 months of SLIT followed by a decrease after SLIT was discontinued. The lines show the means and the bars the standard deviations of TGF- β1 produced by peripheral blood mononuclear cells. The changes observed in the SLIT group are consistent with a SLIT induced increase of T regulatory response. |