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Kirchner, H.* ; Hofmann, S.M.* ; Fischer-Rosinsky, A.* ; Hembree, J.* ; Abplanalp, W.* ; Ottaway, N.* ; Donelan, E.* ; Krishna, R.* ; Woods, S.C.* ; Müller, T.D.* ; Spranger, J.* ; Perez-Tilve, D.* ; Pfluger, P.T.* ; Tschöp, M.H.* ; Habegger, K.M.*

Caloric restriction chronically impairs metabolic programming in mice.

Diabetes 61, 2734-2742 (2012)
Open Access Green möglich sobald Postprint bei der ZB eingereicht worden ist.
Although obesity rates are rapidly rising, caloric restriction remains one of the few safe therapies. Here we tested the hypothesis that obesity-associated disorders are caused by increased adipose tissue as opposed to excess dietary lipids. Fat mass (FM) of lean C57B6 mice fed a high-fat diet (HFD; FMC mice) was "clamped" to match the FM of mice maintained on a low-fat diet (standard diet [SD] mice). FMC mice displayed improved glucose and insulin tolerance as compared with ad libitum HFD mice (P < 0.001) or SD mice (P < 0.05). These improvements were associated with fewer signs of inflammation, consistent with the less-impaired metabolism. In follow-up studies, diet-induced obese mice were food restricted for 5 weeks to achieve FM levels identical with those of age-matched SD mice. Previously, obese mice exhibited improved glucose and insulin tolerance but showed markedly increased fasting-induced hyperphagia (P < 0.001). When mice were given ad libitum access to the HFD, the hyperphagia of these mice led to accelerated body weight gain as compared with otherwise matched controls without a history of obesity. These results suggest that although caloric restriction on a HFD provides metabolic benefits, maintaining those benefits may require lifelong continuation, at least in individuals with a history of obesity.
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Publikationstyp Artikel: Journalartikel
Dokumenttyp Wissenschaftlicher Artikel
ISSN (print) / ISBN 0012-1797
e-ISSN 1939-327X
Zeitschrift Diabetes
Quellenangaben Band: 61, Heft: 11, Seiten: 2734-2742 Artikelnummer: , Supplement: ,
Verlag American Diabetes Association
Verlagsort Alexandria, VA.
Begutachtungsstatus Peer reviewed