CHANGE IN NUMBER AND DISTRIBUTION OF PANCREATIC A- AND B-CELLS IN DIABETIC CHINESE HAMSTER / 中华内分泌代谢杂志

ABSTRACT

The change in pancreatic A- and B-cells in Chinese hamsters with spontaneous hereditary diabetes mellitus were investigated with specific immunohistochemical and image analyzing methods. A variety of pathological changes of the islets and change in number and distribution of the pancreatic A- and B-cells were found in diabetic Chinese hamsters. Microscopic examination revealed that the intensity of staining reaction of pancreatic B-cells varied greatly and the number of A-cells increased in this model. The results of image analysis showed that the range of the average optical density of B-cell staining was 54.4% wider than that in the control and the percentage of the glucagon positive immunoreactive area in the islet was significantly higher in diabetic Chinese hamsters(31.6?13.2%)than in the controls(21. 8?7.5%). These findings suggest that the islet cytology of this diabetic model changes significantly.