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. 2019 Mar 29;17(6):5132–5138. doi: 10.3892/ol.2019.10198

Figure 2.

Figure 2.

Tumor size ratio after single-dose and multi-dose radiations in vivo. (A) In the single-dose radiation experiment, the tumor size of the RT+5-ALA group (n=6) was larger compared with that of the RT group (n=2) at day 21. (B) In the multi-dose irradiation experiment, significant differences were identified between the control group (n=3) and RT+5-ALA group (n=5) at day 8 (P=0.0290), 10 (P=0.0365), 13 (P=0.0057), 15 (P=0.0088), 17 (P=0.0163) and 20 (P=0.0178). Data are presented as the mean ± standard deviation. *P<0.05 vs. control. RT, radiotherapy; 5-ALA, 5-aminolevulinic acid.