Research Article

Immune-Enhancing Activity of Vitis coignetiae Extract via Increasing Cytokine and Natural Killer Cell Activity in Splenocytes and Cyclophosphamide-Induced Immunosuppressed Rats

Figure 3

Effect of Vitis coignetiae extract (VCE) on the serum levels of immune-related cytokines in cyclophosphamide (Cy)-treated Wistar rat splenocytes. Splenocytes were treated with VCE (0–300 μg/mL) and Cy (0.8 mg/mL). Serum levels of (a) tumor necrosis factor alpha (TNF-α), (b) interferon gamma (IFN-γ), (c) interleukin-2 (IL-2), and (d) IL-12 were quantified using enzyme-linked immunosorbent assay (ELISA) kits. Bars labeled with different superscripts have significantly different values ().
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