Quantitative immunocytochemical study of islet cell populations in diabetic calmodulin-transgenic mice

The present study describes the changes in the endocrine pancreas of severely diabetic calmodulin-transgenic mice using light microscopic immunocyto-chemical and morphometric techniques. A marked reduction in the number and volume of islets, together with distortion of their normal architecture, was...

Full description

Bibliographic Details
Authors: Gómez Dumm, César Leandro Alberto, Gagliardino, Juan José, Atwater, Illani, Epstein, P. N.
Format: article
Status:Published version
Publication Date:1994
Country:Argentina
Institution:Universidad Nacional de La Plata
Repository:SEDICI (UNLP)
Language:English
OAI Identifier:oai:sedici.unlp.edu.ar:10915/146099
Online Access:http://sedici.unlp.edu.ar/handle/10915/146099
Access Level:Open access
Keyword:Ciencias Médicas
Pancreatic islet cells
Quantitative immunocytochemistry
Transgenic mice
Experimental diabetes
Description
Summary:The present study describes the changes in the endocrine pancreas of severely diabetic calmodulin-transgenic mice using light microscopic immunocyto-chemical and morphometric techniques. A marked reduction in the number and volume of islets, together with distortion of their normal architecture, was found in diabetic mice. In addition, the volume density of both endocrine tissue and B-cells was decreased. An irregular distribution of non-B-cells was also observed in diabetic animals. The volume density and the percentage of A-cells appeared increased. However, when quantified per area unit, the number of all the islet cell types diminished, although only the decrease in B-cell number was statistically significant. The decrease in B-cell mass might account for the diabetic state developed in this animal model.