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Université de Fribourg

Arginase-ii deficiency extends lifespan in mice

Xiong, Yuyan ; Yepuri, Gautham ; Montani, Jean-Pierre ; Ming, Xiu-Fen ; Yang, Zhihong

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

The mitochondrial arginase type II (Arg-II) has been shown to interact with ribosomal protein S6 kinase 1 (S6K1) and mitochondrial p66Shc and to promote cell senescence, apoptosis and inflammation under pathological conditions. However, the impact of Arg-II on organismal lifespan is not known. In this study, we demonstrate a significant lifespan extension in mice with Arg-II gene deficiency...

Université de Fribourg

Cardiovascular responses to sugary drinks in humans: galactose presents milder cardiac effects than glucose or fructose

Charrière, Nathalie ; Loonam, Cathriona ; Montani, Jean-Pierre ; Dulloo, Abdul G. ; Grasser, Erik K.

In: European Journal of Nutrition, 2017, vol. 56, no. 6, p. 2105–2113

PurposeThere is increasing interest into the potentially beneficial effects of galactose for obesity and type 2 diabetes management as it is a low-glycemic sugar reported to increase satiety and fat mobilization. However, fructose is also a low-glycemic sugar but with greater blood pressure elevation effects than after glucose ingestion. Therefore, we investigated here the extent to which the...

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...