RESUMO
There have been presented the results of the histomorphological research of the effect of the beans' thick extract (BTE) on the state of the pancreas on the model of diabetes mellitus type 2 on the background of obesity in the rats in our research. The simulation of type 2 diabetes on the background of obesity in the animals has led to the development of signs of insulin's inhibition of insulin producing apparatus - some different expressions of dystrophy and degeneration of the ß-cells. The consequence of the hyperfunction has been exhaustion and even death of ß-cells, the development of the diabetic condition. The redistribution of pancreatic islet ß-content of cells has contributed to the increase of the small islands and had a compensatory nature. The treatment of the animals by the BTE has fully prevented an excessive negative impact on revenues of carbohydrates insulin producing apparatus, because it improves the morphological status of ß-cells, reduces the part of small pancreatic islets, almost restores medium and large islets to the level of the «Intact control¼ group. The comparison drug - metformin - has a positive effect on the morphological status of the pancreatic ß-cells, but this effect is obviously not enough for improving or restoring the normal % of distribution of islets.