Compared with NI group, volume density of TSH cells in 100HI group increased and volume density and numerical density on area of TSH cells in LI group were significantly increased.

• 100HI组仔鼠垂体TSH细胞的体密度明显高于NI组,LI组垂体TSH细胞的体密度和面数密度均明显高于NI组。