Mechanisms of salivary gland atrophy induced by soft food

用显微镜观察了喂食流质食物3周的大鼠的唾液腺，以阐明软食对唾液腺的影响。实验大鼠的腮腺在喂饲流质食物后出现萎缩，萎缩的腮腺中存在细胞皱缩、细胞死亡和细胞周期速度减慢。然而，这种萎缩性改变没有观察到在下颌下和舌下腺流质饮食喂养。这些观察结果表明，这取决于唾液腺的种类，是否流质饮食喂养引起唾液腺萎缩。

Salivary glands of rats fed a liquid diet for 3 weeks were investigated microscopically to clarify the effects of soft food on salivary glands. Parotid glands of experimental rats became atrophic after liquid diet feeding, and cell shrinkage, cell death, and reduction of speed of cell-cycle were identified in the atrophic parotid glands. However, such atrophic alterations were not observed in submandibular and sublingual glands following liquid diet feeding. These observations suggest that it depends on the kind of salivary glands whether liquid diet feeding induces atrophy to the salivary glands.