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Study Title:

Acetyl-l-carnitine inhibits TNF-alpha-induced insulin resistance via AMPK pathway in rat skeletal mu

Study Abstract

In this study, we demonstrated effects of acetyl-l-carnitine (ALC) on insulin resistance induced by tumor necrosis factor-alpha (TNF-alpha) in rat L6 cells. TNF-alpha downregulated insulin-stimulated glucose uptake and increased Serine 307 phosphorylation of insulin receptor substrate-1 (IRS-1). However, the treatment of ALC improved insulin-stimulated glucose uptake via AMP-activated protein kinase (AMPK) activation in a dose-dependent manner. Together, our data suggest that ALC inhibits TNF-alpha-induced insulin resistance through AMPK pathway in skeletal muscle cells.

Study Information


Acetyl-l-carnitine inhibits TNF-alpha-induced insulin resistance via AMPK pathway in rat skeletal muscle cells
FEBS Lett.
2009 January

Full Study

http://www.ncbi.nlm.nih.gov/pubmed/19121314
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