Baraa Altaha, Marjolein Heddes, Violetta Pilorz, Yunhui Niu, Elizaveta Gorbunova, Michael Gigl, Karin Kleigrewe, Henrik Oster, Dirk Haller, Silke Kiessling
OBJECTIVE: Internal clocks time behavior and physiology, including the gut microbiome, in a circadian (∼24 h) manner. Mismatch between internal and external time, e.g. during shift work, disrupts circadian system coordination promoting the development of obesity and type 2 diabetes (T2D). Conversely, body weight changes induce microbiota dysbiosis. The relationship between circadian disruption and microbiota dysbiosis in metabolic diseases, however, remains largely unknown. METHODS: Core and accessory clock gene expression in different gastrointestinal (GI) tissues were determined by qPCR in two different models of circadian disruption - mice with Bmal1 deficiency in the circadian pacemaker, the suprachiasmatic nucleus (Bmal1SCNfl/- ), and wild-type mice exposed to simulated shift work (SSW)...
November 2, 2022: Molecular Metabolism