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Université de Fribourg

Pathways from dieting to weight regain, to obesity and to the metabolic syndrome: an overview

Dulloo, Abdul G. ; Montani, Jean-Pierre

In: Obesity Reviews, 2015, vol. 16, p. 1–6

Every year, scores of millions of people – as diverse as obese and lean, teenagers and older adults, sedentary and elite athletes, commoners and celebrities – attempt to lose weight on some form of diet. They are often encouraged by their parents, friends, health professionals, training coaches, a media that promotes a slim image and a diet- industry that in Europe and United States alone...

Université de Fribourg

Polyunsaturated fatty acids stimulate de novo lipogenesis and improve glucose homeostasis during refeeding with high fat diet

Crescenzo, Raffaella ; Mazzoli, Arianna ; Cancelliere, Rosa ; Bianco, Francesca ; Giacco, Antonia ; Liverini, Giovanna ; Dulloo, Abdul G. ; Iossa, Susanna

In: Frontiers in Physiology, 2017, vol. 8, p. -

The recovery of body weight after a period of caloric restriction is accompanied by an enhanced efficiency of fat deposition and hyperinsulinemia—which are exacerbated by isocaloric refeeding on a high fat diet rich in saturated and monounsaturated fatty acids (SFA-MUFA), and poor in polyunsaturated fatty acids (PUFA), and associated with a blunting of de novo lipogenesis in adipose tissue...

Université de Fribourg

Postprandial hypotension in older adults: Can it be prevented by drinking water before the meal?

Grobéty, Bastien ; Grasser, Erik Konrad ; Yepuri, Gayathri ; Dulloo, Abdul G. ; Montani, Jean-Pierre

In: Clinical Nutrition, 2015, vol. 34, no. 5, p. 885–891

Background & aimsAn important consequence of ageing is a tendency for postprandial blood pressure to decline, which can lead to fainting. As a possible countermeasure, we investigated in healthy older adults the impact of drinking water before a breakfast meal on postprandial cardiovascular and autonomic functions.MethodsAfter a stable cardiovascular baseline recording for at least 20 min,...

Université de Fribourg

Regulation of fat storage via suppressed thermogenesis: a thrifty phenotype that predisposes individuals with catch-up growth to insulin resistance and obesity

Dulloo, Abdul G.

In: Hormone Research, 2006, vol. 65, no. 3, p. 90-97

Catch-up growth during infancy and childhood is increasingly recognized as a major risk factor for later development of insulin-related complications and chronic diseases, namely abdominal obesity, type 2 diabetes and cardiovascular disease. As catch-up growth per se is characterized by insulin resistance, hyperinsulinaemia and an accelerated rate of fat storage (i.e., catch-up fat) even in...

Université de Fribourg

Reliability of low‐power cycling efficiency in energy expenditure phenotyping of inactive men and women

Fares, Elie-Jacques ; Isacco, Laurie ; Monnard, Cathriona R. ; Miles-Chan, Jennifer L. ; Montani, Jean-Pierre ; Schutz, Yves ; Dulloo, Abdul G.

In: Physiological Reports, 2017, vol. 5, no. 9, p. e13233

Standardized approaches to assess human energy expenditure (EE) are well defined at rest and at moderate to high‐intensity exercise, but not at light intensity physical activities energetically comparable with those of daily life (i.e., 1.5–4 times the resting EE, i.e., 1.5–4 METs). Our aim was to validate a graded exercise test for assessing the energy cost of low‐intensity dynamic...

Université de Fribourg

A role for skeletal muscle stearoyl-CoA desaturase 1 in control of thermogenesis

Mainieri, Davide ; Summermatter, Serge ; Seydoux, Josiane ; Montani, Jean-Pierre ; Rusconi, Sandro ; Russell, Aaron P. ; Boss, Olivier ; Buchala, Antony J. ; Dulloo, Abdul G.

In: The FASEB Journal, 2006, vol. 20, no. 10, p. 1751-1753

An enhanced metabolic efficiency for accelerating the recovery of fat mass (or catch-up fat) is a characteristic feature of body weight regulation after weight loss or growth retardation and is the outcome of an "adipose-specific" suppression of thermogenesis, i.e., a feedback control system in which signals from the depleted adipose tissue fat stores exert a suppressive effect on thermogenesis....

Université de Fribourg

Sitting comfortably versus lying down: Is there really a difference in energy expenditure?

Miles-Chan, Jennifer Lynn ; Sarafian, Delphine ; Montani, Jean-Pierre ; Schutz, Yves ; Dulloo, Abdul G.

In: Clinical Nutrition, 2014, vol. 33, no. 1, p. 175–178

Background and aims: Energy expenditure (EE) during sitting is widely assumed to be higher than that while lying down, but supporting evidence is equivocal. Despite this, resting EE in the sitting position is often used as a proxy for basal metabolic rate. Here we investigate whether EE differs in the comfortable seated position compared to supine (lying) position.Methods: EE and respiratory...

Université de Fribourg

Standing economy: does the heterogeneity in the energy cost of posture maintenance reside in differential patterns of spontaneous weight-shifting?

Miles-Chan, Jennifer L. ; Fares, Elie-Jacques ; Berkachy, Redina ; Jacquet, Philippe ; Isacco, Laurie ; Schutz, Yves ; Montani, Jean-Pierre ; Dulloo, Abdul G.

In: European Journal of Applied Physiology, 2017, vol. 117, no. 4, p. 795–807

Due to sedentarity-associated disease risks, there is much interest in methods to increase low-intensity physical activity. In this context, it is widely assumed that altering posture allocation can modify energy expenditure (EE) to impact body-weight regulation and health. However, we have recently shown the existence of two distinct phenotypes pertaining to the energy cost of...