Table 1 Peak intensity ratios of ¹H NMR spectra obtained from A549 and A549/DDP cells treated with 30 μM cisplatin and cultured for 0 h, 24 h, and 48 h.

0 hrs

3.63 ± 0.08

0.26 ± 0.06

4.11 ± 0.15

0.56 ± 0.05

0.23 ± 0.07

24 hrs

4.12 ± 0.09

0.19 ± 0.05

4.39 ± 0.18

0.41 ± 0.06

0.16 ± 0.06

48 hrs

4.25 ± 0.06

0.11 ± 0.06

4.94 ± 0.12

0.33 ± 0.05

0.12 ± 0.08

0 hrs

2.21 ± 0.09

0.28 ± 0.06

3.66 ± 0.27

0.68 ± 0.04

0.25 ± 0.04

24 hrs

2.04 ± 0.06

0.33 ± 0.04

3.62 ± 0.16

0.74 ± 0.06

0.29 ± 0.08

48 hrs

1.66 ± 0.08

0.39 ± 0.09

3.60 ± 0.03

0.86 ± 0.05

0.33 ± 0.06