Fig. 3From: Effects of treatment with Astragalus Membranaceus on function of rat leydig cellsEffect of AM treatment on testosterone production in Leydig cells. Cells were treated with 0 μg/mL, 10 μg/mL, 20 μg/mL, 50 μg/mL, 100 μg/mL and 150 μg/mL of AM. Testosterone production in culture medium was determined by ELISA (enzyme-linked immuno sorbent assay). Results are depicted as mean +/- SE, * P < 0.05, ** P < 0.01Back to article page