Figure 2
From: Selenized milk casein in the diet of BALB/c nude mice reduces growth of intramammary MCF-7 tumors
Tumor volume growth curves for individual mice in each treatment group. MCF-7 cells were xenografted into mammary fat pads of nude BALB/c mice implanted with slow-release estrogen pellets. Once tumor volumes reached 60 mm3 in volume, mice were assigned to dietary treatments of Se-casein at a) 0.16 ppm Se, b) 0.51 ppm Se, c) 0.85 ppm Se, and d) 1.15 ppm Se. Tumor volumes were estimated from caliper measurements once per week during treatment.