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Wayne State University Dissertations

2015

CREBH

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Crebh, A Novel Liver Clock Keeper For Energy Metabolism, Ze Zheng Jan 2015

Crebh, A Novel Liver Clock Keeper For Energy Metabolism, Ze Zheng

Wayne State University Dissertations

Circadian rhythms play crucial roles in orchestrating diverse physiological processes that are critical for health and disease. Cyclic AMP responsive element binding protein 3-like 3 (CREB3L3, also known as CREBH) is a liver-enriched, endoplasmic reticulum (ER)-tethered transcription factor known to regulate hepatic acute-phase response and energy homeostasis under stress conditions. Here, we demonstrate that CREBH is regulated by the circadian clock and functions as a diurnal regulator of hepatic lipid and glucose metabolism. CREBH is required to maintain circadian profiles of blood triglycerides, fatty acids, and glucose as well as hepatic glycogen storage. CREBH rhythmically regulates expression levels and ...