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Université de Fribourg

The direct effect of leptin on skeletal muscle thermogenesis is mediated by substrate cycling between de novo lipogenesis and lipid oxidation

Solinas, Giovanni ; Summermatter, Serge ; Mainieri, Davide ; Gubler, Marcel ; Pirola, Luciano ; Wymann, Matthias P. ; Rusconi, Sandro ; Montani, Jean-Pierre ; Seydoux, Josiane

In: FEBS Letters, 2004, vol. 577, no. 3, p. 539-544

We report here studies that integrate data of respiration rate from mouse skeletal muscle in response to leptin and pharmacological interference with intermediary metabolism, together with assays for phosphatidylinositol 3-kinase (PI3K) and AMP- activated protein kinase (AMPK). Our results suggest that the direct effect of leptin in stimulating thermogenesis in skeletal muscle is mediated by...

Université de Fribourg

Thrifty metabolism that favors fat storage after caloric restriction: a role for skeletal muscle phosphatidylinositol-3-kinase activity and AMP-activated protein kinase

Summermatter, Serge ; Mainieri, Davide ; Russell, A. P. ; Seydoux, Josiane ; Montani, Jean-Pierre ; Buchala, Anthony J. ; Solinas, Giovanni ; Dulloo, Abdul G.

In: Faseb Journal, 2008, vol. 22, p. 774-785

Energy conservation directed at accelerating body fat recovery (or catch-up fat) contributes to obesity relapse after slimming and to excess fat gain during catch-up growth after malnutrition. To investigate the mechanisms underlying such thrifty metabolism for catch-up fat, we tested whether during refeeding after caloric restriction rats exhibiting catch-up fat driven by suppressed...

2 risultati 1