APAP-induced free radical response measured
by relaxometry. (a)
T1 relaxation in cells treated with different concentrations 0.5,
2, and 4 mM of APAP and different time points 3, 6, 9, and 18 h measured
in the cytosol with FNDs. (b) Measurements on the mitochondrial surface
using MIT-FNDs and (c) measurements on the nuclear surface using NLS-FNDs
under the same conditions. The data are shown by separated box and
whisker plots with minimum and maximum values. Each experiment was
repeated three independent times. Data were analyzed using two-way
ANOVA followed by Tukey post hoc test. Statistical significance is
indicated by *P ≤ 0.05, **P ≤ 0.01, and ***P ≤ 0.001.