Subject area	Biology
More specific subject area	Morphometric
Type of data	Graph
How data was acquired	The images of the histological sections of pancreas were obtained using a light microscope light fitted with a digital camera (Evolution MP 5.0; Media Cibernetic Inc., USA) and the Image Pro Plus software (Media Cibernetic Inc., USA). These images were analyzed by ImageJ software to measure the area, major diameter, minor diameter, circularity, and density of pancreatic islets.
Data format	Analyzed and graphed
Experimental factors	The pancreases was dehydrated in ethanol, diaphonized in xylene, and embedded in paraffin. The histological sections were cut at a thickness of 7 μm and were stained with hematoxylin-eosin (H&E).
Experimental features	Quantification of the area, major diameter, minor diameter, circularity, and density of pancreatic islets by morphometric analysis.
Data source location	Federal University of the Triângulo Mineiro, Brazil
Data accessibility	Data is within this article.