Stronger modulation of miRNAs was present on re-biopsy in the supplementation group compared to the placebo , including : ( i ) overexpression of miRNAs present in PCa versus non-cancer tissue ; ( ii ) underexpression of miRNAs suppressing PCa proliferation ; ( iii ) detection of @ miRNAs in PCa patients versus disease-free men , including androgen-regulated miR-@b-@p and PTEN-targeting miR-@a-@p ( both upregulated ) .