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. Author manuscript; available in PMC: 2008 Apr 30.
Published in final edited form as: J Med Food. 2007 Sep;10(3):423–434. doi: 10.1089/jmf.2006.257

FIG. 6.

FIG. 6

Effect of Echinacea preparations on TH1cytokine production by mouse splenocytes stimulated in vitro without or with mitogen. Spleen cells were incubated without or with Con A at 10 μg/mL for 48 hours. Cytokine levels were determined as described in Materials and Methods. Results are presented as mean ± SE values of two independent experiments (n = 6). *Significant difference from vehicle control at P <.05. #Significant difference for the combination of corresponding Echinacea treatment groups from vehicle control.