Effect of low-dose radiation on thyroid function and the gut microbiota

Figure 2 The level of thyroid hormone in mice exposed to radiation. A: Box and whisker plots of the levels of thyroid stimulating hormone (TSH) in the control (n = 6) and test (n = 24) groups. The TSH level of the mice in the test group was lower than that in the control mice (t = 2.188, P = 0.037); B: Histogram of the levels of TSH from the control and test groups. Statistically significant differences were not confirmed between the two groups; C: Box and whisker plots of the level of fT3 in the control (n = 6) and test groups (n = 24); D: Histogram of the level of fT3 in the control and test subgroups; E: Box and whisker plots of the level of fT4 in the control (n = 6) and test groups (n = 24); F: Histogram of the level of fT4 in the control and test subgroups. TSH: Thyroid stimulating hormone. ^aP < 0.05.