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Université de Fribourg

The case of GWAS of obesity: does body weight control play by the rules?

Müller, Manfred J. ; Geisler, Corinna ; Blundell, John ; Dulloo, Abdul ; Schutz, Yves ; Krawczak, Michael ; Bosy-Westphal, Anja ; Enderle, Janna ; Heymsfield, Steven B.

In: International Journal of Obesity, 2018, vol. 42, no. 8, p. 1395–1405

As yet, genome-wide association studies (GWAS) have not added much to our understanding of the mechanisms of body weight control and of the etiology of obesity. This shortcoming is widely attributed to the complexity of the issues. The appeal of this explanation notwithstanding, we surmise that (i) an oversimplification of the phenotype (namely by the use of crude anthropometric traits) and...

Université de Fribourg

The contribution of Swiss scientists to the assessment of energy metabolism

Montani, Jean-Pierre ; Schutz, Yves ; Dulloo, Abdul G.

In: European Journal of Clinical Nutrition, 2018, vol. 72, no. 5, p. 665–679

Although Switzerland is considered a small country, it has its share in discoveries, inventions and developments for the assessment of energy metabolism. This includes seminal contributions to respiratory and metabolic physiology and to devices for measuring energy expenditure by direct and indirect calorimetry in vivo in humans and small animals (as well as in vitro in organs/tissues), for...

Université de Fribourg

Collateral fattening in body composition autoregulation: its determinants and significance for obesity predisposition

Dulloo, Abdul G. ; Miles-Chan, Jennifer L. ; Schutz, Yves

In: European Journal of Clinical Nutrition, 2018, vol. 72, no. 5, p. 657–664

Collateral fattening refers to the process whereby excess fat is deposited as a result of the body’s attempt to counter a deficit in lean mass through overeating. Its demonstration and significance to weight regulation and obesity can be traced to work on energy budget strategies in growing mammals and birds, and to men recovering from experimental starvation. The cardinal features of...

Université de Fribourg

Oral contraceptive pill alters acute dietary protein‐induced thermogenesis in young women

Duhita, Maharani Retna ; Schutz, Yves ; Montani, Jean-Pierre ; Dulloo, Abdul G. ; Miles-Chan, Jennifer L.

In: Obesity, 2017, vol. 25, no. 9, p. 1482–1485

Objective: There is much interest in the role of dietary protein for weight control. However, there remains a need to characterize individual determinants of the thermogenic effects of protein. This study aimed to investigate the influence of menstrual cycle phase and the combined, monophasic oral contraceptive pill on the thermogenic response to a standardized high-protein (HP) versus...

Université de Fribourg

Issues in continuous 24-H core body temperature monitoring in humans using an ingestible capsule telemetric sensor

Monnard, Cathriona R. ; Fares, Elie-Jacques ; Calonne, Julie ; Miles-Chan, Jennifer L. ; Montani, Jean-Pierre ; Durrer, Dominique ; Schutz, Yves ; Dulloo, Abdul G.

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

Background: There is increasing interest in the use of pill-sized ingestible capsule telemetric sensors for assessing core body temperature (Tc) as a potential indicator of variability in metabolic efficiency and thrifty metabolic traits. The aim of this study was to investigate the feasibility and accuracy of measuring Tc using the CorTemp® system.Methods: Tc was measured over an average of 20...