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Université de Fribourg

Exposure to a high-fat diet alters leptin sensitivity and elevates renal sympathetic nerve activity and arterial pressure in rabbits

Prior, Larissa J. ; Eikelis, Nina ; Armitage, James A. ; Davern, Pamela J. ; Burke, Sandra L. ; Montani, Jean-Pierre ; Barzel, Benjamin ; Head, Geoffrey A.

In: Hypertension, 2010, p. -

The activation of the sympathetic nervous system through the central actions of the adipokine leptin has been suggested as a major mechanism by which obesity contributes to the development of hypertension. However, direct evidence for elevated sympathetic activity in obesity has been limited to muscle. The present study examined the renal sympathetic nerve activity and cardiovascular effects of a...

Université de Fribourg

Substrate cycling between de novo lipogenesis and lipid oxidation: a thermogenic mechanism against skeletal muscle lipotoxicity and glucolipotoxicity

Dulloo, Abdul G. ; Gubler, Marcel ; Montani, Jean-Pierre ; Seydoux, Josiane ; Solinas, Giovanni

In: International Journal of Obesity, 2004, vol. 28 (Suppl. 4), p. S29-S37

Life is a combustion, but how the major fuel substrates that sustain human life compete and interact with each other for combustion has been at the epicenter of research into the pathogenesis of insulin resistance ever since Randle proposed a 'glucose-fatty acid cycle' in 1963. Since then, several features of a mutual interaction that is characterized by both reciprocality and dependency between...