Objective: To observe the effect of selenium on the TSH positive cells in the pituitary pars distalis of rat with colon mucosa cancer induced by azoxymethane (AOM).

• 摘要目的：观察硒对氧化偶氮甲烷(AOM)所致大鼠结肠癌形成过程中，垂体远侧部促甲状腺激素(TSH)阳性细胞的影响。