Université de Fribourg

Comment les régimes amaigrissants font grossir : d’une perspective d’autorégulation de la composition corporelle = How dieting makes some fatter: From a perspective of human body composition autoregulation

Dulloo, Abdul G. ; Jacquet, Jean ; Seydoux, Josiane ; Montani, Jean-Pierre

In: Cahiers de Nutrition et de Diététique, 2013, vol. 48, no. 1, p. 15–25

‘Dieting Makes You Fat’ – the title of a book published in 1983 – embodies the notion that dieting to control body weight, with consequential weight cycling, predisposes the individual to acquire even more body fat. While this notion is controversial, its debate underscores the large gap, which exists in our understanding of basic physiological laws, which govern the regulation of human...

Université de Fribourg

Dietary modulation of body composition and insulin sensitivity during catch-up growth in rats: effects of oils rich in n-6 or n-3 PUFA

Yepuri, Gayathri ; Marcelino, Helena ; Shahkhalili, Yasaman ; Aprikian, Olivier ; Macé, Katherine ; Seydoux, Josiane ; Miles-Chan, Jennifer L. ; Montani, Jean-Pierre ; Dulloo, Abdul G.

In: British Journal of Nutrition, 2011, vol. 105, no. 12, p. 1750-1763

The present study investigates whether excessive fat accumulation and hyperinsulinaemia during catch-up growth on high-fat diets are altered by n-6 and n-3 PUFA derived from oils rich in either linoleic acid (LA), α-linolenic acid (ALA), arachidonic acid (AA) or DHA. It has been shown that, compared with food-restricted rats refed a high-fat (lard) diet low in PUFA, those...

Université de Fribourg

β-Adrenergic control of stearoyl-CoA desaturase 1 repression in relation to sympathoadrenal regulation of thermogenesis

Mainieri, Davide ; Montani, Jean-Pierre ; Seydoux, Josiane ; Giacobino, J. P. ; Boss, O. ; Dulloo, Abdul G.

In: International Journal of Obesity, 2007, vol. 31, no. 2, p. 378–381

Mice lacking β-adrenoceptors, which mediate the thermogenic effects of norepinephrine and epinephrine, show diminished thermogenesis and high susceptibility to obesity, whereas mice lacking stearoyl-CoA desaturase 1 (SCD1), which catalyzes the synthesis of monounsaturated fatty acids, show enhanced thermogenesis and high resistance to obesity. In testing whether β-adrenergic...