Brown adipocyte progenitor population is modified in obese and diabetic skeletal muscle

Full text for this resource is not available from the Research Repository.

Russell, Aaron P, Crisan, M, Leger, B, Corselli, M, McAinch, Andrew, O'Brien, Paul E, Cameron-Smith, David, Peault, B, Casteilla, L and Giacobino, J-P (2012) Brown adipocyte progenitor population is modified in obese and diabetic skeletal muscle. International Journal of Obesity, 36 (1). pp. 155-158. ISSN 0307-0565

Abstract

Brown adipose tissue mitochondria express the unique thermogenic uncoupling protein-1. Recently, brown adipocyte progenitors have been identified in the CD34+ cell population of human skeletal muscle. The aims of this study were firstly to determine if obesity and diabetes have altered amounts of muscle brown adipocyte progenitors and, secondly, to establish if the latter are correlated with clinical parameters of obesity and diabetes. Body mass index (BMI), plasma glucose, insulin, cholesterol and triglycerides as well as homeostasis model assessment were measured in lean (n=10), obese (n=18) and obese-diabetic (n=15) subjects and muscle biopsies were taken from the rectus abdominus. CD34 being also expressed on endothelial cells, we measured CD31, another endothelial marker, and expressed the brown adipocyte progenitors, as the CD34/CD31 mRNA ratio. The latter was significantly reduced in the obese vs lean subjects suggesting a smaller pool of brown adipocyte progenitors. More strinkingly, for lean and obese subjects negative correlations were observed between the CD34/CD31 mRNA ratios and BMI, fasting insulin levels and homeostasis model assessment. These correlations highlight the potential physiological relevance of the muscle CD34/CD31 mRNA ratio.

Item type Article
URI https://vuir.vu.edu.au/id/eprint/21515
Official URL http://www.nature.com/ijo/journal/v36/n1/full/ijo2...
Subjects Historical > Faculty/School/Research Centre/Department > School of Biomedical and Health Sciences
Historical > FOR Classification > 0601 Biochemistry and Cell Biology
Historical > FOR Classification > 1199 Other Medical and Health Sciences
Keywords ResPubID25418, muscle, brown adipocyte progenitors, diabetes
Citations in Scopus 13 - View on Scopus
Download/View statistics View download statistics for this item

Search Google Scholar

Repository staff login