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Abstract：
Pteronotus personatus as an insectivore bat and has a diet that consists of a high protein diet, whereas the diet of Anoura geoffroyi, a predominantly nectarivore bat, is rich in simple sugars like sucrose, glucose and fructose. Considering that diet influences the activation of different pathways, which may influence morphological adaptations in the gastrointestinal system, the aim of this study was to compare the morphology of the endocrine pancreas in P. personatus and A. geoffroyi. For this, histological, stereological and immunohistochemical methods were used. In P. personatus, the average diameter of the pancreatic islet was 40.47μm±13.94, while in A. geoffroyi was 88.16μm±36.40. The total number of pancreatic islets in P. personatus was 26150±2346 and in A. geoffroyi was 15970±1666. In P. personatus, the volume density of the pancreatic islets was 3.4%± 2.6, whereas in A. geoffroyi the volume density was 6.1%±3.7. In addition, the immunodensity of the α, β and δ cells, in P. personatus was 25.8%±11.9, 35.5%±13.5, 3.9%±0.7, respectively, and in A. geoffroyi was 33.10%±12.7, 55.08%±7.4, 6.2%±4.6, respectively. In conclusion, the results of this study indicate differences in the pancreatic weight/body, weight ratio, diameter and volume density of pancreatic islets and in immunodensity of the β and α cells between both species, which have different dietary habits.
摘要：
翼龙是食虫蝙蝠，饮食由高蛋白饮食组成，而Anourageoffroyi的饮食，一只主要是公祭的蝙蝠，富含蔗糖等单糖，葡萄糖和果糖.考虑到饮食会影响不同途径的激活，这可能会影响胃肠系统的形态适应，本研究的目的是比较属人疟原虫和Geoffroyi内分泌胰腺的形态。为此，组织学,采用体视学和免疫组织化学方法。在P.personatus中，胰岛的平均直径为40.47μm±13.94，而A.geoffroyi为88.16μm±36.40。属人假单胞菌的胰岛总数为26150±2346，而Geoffroyi的胰岛总数为15970±1666。在P.personatus中，胰岛的体积密度为3.4％±2.6，而A.geoffroyi的体积密度为6.1％±3.7。此外,α的免疫倾向，β和δ细胞，P.personatus分别为25.8%±11.9、35.5%±13.5、3.9%±0.7，在乔夫罗伊中，分别为33.10%±12.7、55.08%±7.4、6.2%±4.6。总之,这项研究的结果表明胰腺重量/身体的差异，重量比,胰岛的直径和体积密度以及两种物种之间β和α细胞的免疫密度，有不同的饮食习惯。
