3.2. Effects of UVB irradiation on thyroid hormones
Thyroid hormone levels are noticeably higher in the UVB-irradiated group compared to the control group. T3, T4, fT3, and fT4 levels significantly increased in the UVB-irradiated group compared to the control group, while TSH levels significantly decreased. As shown in figure 3, the UVB+NG treated group’s T3, T4, fT3, and fT4 levels were significantly lower than those of the UVB irradiated group, and the administrative NG group exhibited substantial differences from the control group.