Table 3. Pearson correlation analysis among blood Se concentration, GPx activity in liver, real-time PCR SELENOP expression and tumoral growth at 28 days.

Variables		r	p
Blood Se concentration	GPx activity	0.126	0.606
Blood Se concentration	PCR SELENOP expression	-0.345	0.147
GPx activity	PCR SELENOP expression	0.172	0.480
Blood Se concentration	Tumoral growth (28 days)	0.129	0.599
GPx activity	Tumoral growth (28 days)	-0.316	0.187
PCR SELENOP expression	Tumoral growth (28 days)	-0.374	0.115