Document Classification

Section Type: RESULTS

Text: Expression of PCNA, Bax, Bcl-2 and p53 protein was reduced in both groups, but significant difference only showed between pre - and post-treatment in PCNA (Z = -2. 449, P = 0. 014) and Bax protein (Z = -3. 031, P = 0. 002) in Group B. Significantly reduction of PCNA (Z = -2. 656, P = 0. 008), Bax (Z = -2. 359, P = 0. 018) and p53 protein (Z = -1. 999, P = 0. 046) in patients with complete tumor regression at radiation for 20 Gy, while in those with no complete tumor regression only PCNA showed significant reduction (Z = -32. 815, P = 0. 015).