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Insulin signaling in adipose tissue plays an important role in lipid storage and regulation of glucose homeostasis. However, in obesity-associated hyperinsulinemia insulin also mediates deleterious effects as demonstrated by the work of David J. Pedersen and colleagues.

The authors found that high circulating insulin significantly promotes adipose tissue inflammation, including increased macrophage expansion and expression of cytokines. Even in lean mice, infusion of insulin under constant euglycemic conditions stimulated expression of cytokines. Their findings indicate that obesity-associated hyperinsulinemia is a major contributing factor in driving adipose tissue inflammation, which in turn may contribute to obesity-induced insulin resistance and type 2 diabetes.

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The 60 Second Metabolist
In this section authors briefly report on their work recently published in Molecular Metabolism.

Watch the most recent interview by clicking the video still. The link "referring article" directs you to this author's publication.



Giles Yeo
University of Cambridge, UK
Referring article

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