Figure 2.

Comparison of mtDNA 4,977-bp deletion levels between tumor and non-tumor tissues. (A) deletion levels in 17 and 13 patients carrying the deletion in tumor (closed circle and solid line)and non-tumor tissues(open circle), respectively. The solid lines represent the mean values. (B) paired deletion levels in tumor and non-tumor tissues from the same patients in 10 cases who carried the deletion in both tissues. p-values were obtained by independent-samples T test for (A) and paired-samples T test for (B).