Results The results showed that the immunoreactive CT can be observed,they mainly distributed in serous alveoli,serous cells of mixed alveoli,and every duct were also positively immunoreactive to CT.

• 结果在大鼠下颌下腺,可见CT反应阳性物,它们主要分布于浆液性腺泡、混合性腺泡的浆液细胞内,各级导管的上皮细胞也呈CT反应阳性。