Disruption of Adiponectin Causes Insulin Resistance and Neointimal Formation
Journal of Biological ChemistryPublished 1 July 2002Open access
Naoto Kubota, Yasuo Terauchi, Toshimasa Yamauchi, Tetsuya Kubota, Masao Moroi, Junji Matsui
Citations1,205
SJR quartileQ1
SJR score1.71
SNIP1.00
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TL;DR
This study provides the first direct evidence that adiponectin plays a protective role against insulin resistance and atherosclerosis in vivo.
Abstract
The adipocyte-derived hormone adiponectin has been proposed to play important roles in the regulation of energy homeostasis and insulin sensitivity, and it has been reported to exhibit putative antiatherogenic properties in vitro. In this study we generated adiponectin-deficient mice to directly investigate whether adiponectin has a physiological protective role against diabetes and atherosclerosis in vivo. Heterozygous adiponectin-deficient (adipo(+/-)) mice showed mild insulin resistance, while homozygous adiponectin-deficient (adipo(-/-)) mice showed moderate insulin resistance with glucose intolerance despite body weight gain similar to that of wild-type mice. Moreover, adipo(-/-) mice showed 2-fold more neointimal formation in response to external vascular cuff injury than wild-type mice (p = 0.01). This study provides the first direct evidence that adiponectin plays a protective role against insulin resistance and atherosclerosis in vivo.
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