Protocol to evaluate fasting metabolism and its relationship to the core circadian clock in mice

Summary: To investigate the role of hepatocyte genes in fasting metabolism, it is essential to analyze their expression across the entire 24-h circadian cycle. Here, we present a protocol to evaluate fasting metabolism and its relationship to the core circadian clock in mice. We describe steps for t...

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Main Authors: Jiameng Sun, Brian J. DeBosch
Format: Article
Language:English
Published: Elsevier 2025-03-01
Series:STAR Protocols
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Online Access:http://www.sciencedirect.com/science/article/pii/S2666166725000668
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author Jiameng Sun
Brian J. DeBosch
author_facet Jiameng Sun
Brian J. DeBosch
author_sort Jiameng Sun
collection DOAJ
description Summary: To investigate the role of hepatocyte genes in fasting metabolism, it is essential to analyze their expression across the entire 24-h circadian cycle. Here, we present a protocol to evaluate fasting metabolism and its relationship to the core circadian clock in mice. We describe steps for time-course fasting/feeding experiment setup and performing staggered fasting and refeeding for 24 h. We then detail procedures for evaluating oxidative substrate selection and rescuing defective oxidative metabolism through FGF21 and CPI-613 injections.For complete details on the use and execution of this protocol, please refer to Sun et al.1 : Publisher’s note: Undertaking any experimental protocol requires adherence to local institutional guidelines for laboratory safety and ethics.
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spelling doaj-art-b7c4d3080b3d4184a38cfa29f13a75872025-08-20T03:11:06ZengElsevierSTAR Protocols2666-16672025-03-016110366010.1016/j.xpro.2025.103660Protocol to evaluate fasting metabolism and its relationship to the core circadian clock in miceJiameng Sun0Brian J. DeBosch1Department of Pediatrics, Washington University School of Medicine in St. Louis, St. Louis, MO 63110, USA; Herman B Wells Center for Pediatric Research, Indiana University School of Medicine, Indianapolis, IN 46202, USAHerman B Wells Center for Pediatric Research, Indiana University School of Medicine, Indianapolis, IN 46202, USA; Corresponding authorSummary: To investigate the role of hepatocyte genes in fasting metabolism, it is essential to analyze their expression across the entire 24-h circadian cycle. Here, we present a protocol to evaluate fasting metabolism and its relationship to the core circadian clock in mice. We describe steps for time-course fasting/feeding experiment setup and performing staggered fasting and refeeding for 24 h. We then detail procedures for evaluating oxidative substrate selection and rescuing defective oxidative metabolism through FGF21 and CPI-613 injections.For complete details on the use and execution of this protocol, please refer to Sun et al.1 : Publisher’s note: Undertaking any experimental protocol requires adherence to local institutional guidelines for laboratory safety and ethics.http://www.sciencedirect.com/science/article/pii/S2666166725000668geneticsmetabolismmodel organisms
spellingShingle Jiameng Sun
Brian J. DeBosch
Protocol to evaluate fasting metabolism and its relationship to the core circadian clock in mice
STAR Protocols
genetics
metabolism
model organisms
title Protocol to evaluate fasting metabolism and its relationship to the core circadian clock in mice
title_full Protocol to evaluate fasting metabolism and its relationship to the core circadian clock in mice
title_fullStr Protocol to evaluate fasting metabolism and its relationship to the core circadian clock in mice
title_full_unstemmed Protocol to evaluate fasting metabolism and its relationship to the core circadian clock in mice
title_short Protocol to evaluate fasting metabolism and its relationship to the core circadian clock in mice
title_sort protocol to evaluate fasting metabolism and its relationship to the core circadian clock in mice
topic genetics
metabolism
model organisms
url http://www.sciencedirect.com/science/article/pii/S2666166725000668
work_keys_str_mv AT jiamengsun protocoltoevaluatefastingmetabolismanditsrelationshiptothecorecircadianclockinmice
AT brianjdebosch protocoltoevaluatefastingmetabolismanditsrelationshiptothecorecircadianclockinmice