Effect of the Streptozotocin Induced Diabetes in the Rat Submandibular Glands

Streptozotocin유도 당뇨병이 백서 악하선에 미치는 영향에 관한 병리조직학적 연구

The purpose of this study was to observe the microscopic change of salivary gland tissues, which is the cause of xerostomia in diabetic condition: for this target the author injected STZ 0.1ml/100gm b.w. on rat to produce diabetes, and than observed microscopic change in submandibular gland through the histopathologic method, obtaining as follows : 1. All of the experimental specimens suffered diabetes after injection of STZ, but the blood glucose level was irregular. 2. There were not interrelationship between the blood glucose level and microscopic change on salivary gland tissues. 3. The salivary gland changed after diabetes initiation in lapse of times; after 14 days,suffered severe destruction, however after 17 days, it was regenerated. 4. Salivary glands showed congested, destructive acini cells, and hyperplastic ductal cells as well as salivary gland duct-like structures. 5. Then were accumulation of fat granules within the cytoplasm of the acini cells on mucous gland in diabetic condition. 6. According to insulin injection, there were no more changes on salivary gland tissues, even in the accumulation of fat granules. 7. Histological changes of the serous gland were obvious more than the mucous gland in this experimental condition.