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The SAV effects on immune function in normal mice spleen. (A) The spleen indexes. (B) Spleen histopathological was observed by H&E staining with microscopy (100× magnification). (C) The activity of NK cells was measured by ELISA kit. (D) CD3 and CD20 levels were measured by immunohistochemical staining (200× magnification). (E) The relative folds of CD3 and CD20 expression by morphometric analysis.
