Table 5.

Total iron concentrations in the liver and spleen (dry tissue).

Group	n	Liver; µg Fe/mg dry tissue (± SD)	Spleen; µg Fe/mg dry tissue (± SD)
S0	3	1.8 (0.9)	3.1 (2.5)
SH	4	2.1 (1.9)	3.2 (1.3)
LL	3	17.1 (0.3)	17.8 (14.0)
LH	3	15.7 (3.9)	33.1 (32.3)
H0	3	41.1 (28.0)	36.0 (36.2)
HL	4	49.7 (29.3)	33.2 (24.5)
HH	3	36.5 (47.9)	72.9 (119.4)

Iron concentrations were measured by inductively coupled plasma mass spectrometry. The first letter of each group designation indicates the dose of nanoparticles injected: saline (S), low-dose (L) or high-dose (H) superparamagnetic iron oxide. The second letter of each group designation indicates the field strength for alternating magnetic field exposure: zero (0), low (L) or high (H) field.

SD: Standard deviation.