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Author (up) Sherman, H.; Gutman, R.; Chapnik, N.; Meylan, J.; le Coutre, J.; Froy, O. url  doi
  Title Caffeine alters circadian rhythms and expression of disease and metabolic markers Type Journal Article
  Year 2011 Publication The International Journal of Biochemistry & Cell Biology Abbreviated Journal Int J Biochem Cell Biol  
  Volume 43 Issue 5 Pages 829-838  
  Keywords Human Health; Animals; Biological Markers/blood/metabolism; Body Weight/drug effects/physiology; Caffeine/*pharmacology; Caloric Restriction; Circadian Rhythm/*drug effects/genetics/physiology; *Disease/genetics; Eating/drug effects/physiology; Gene Expression Regulation/*drug effects/genetics; HEK293 Cells; Humans; Inflammation/metabolism; Male; Mice; Mice, Inbred C57BL; Motor Activity/drug effects/physiology  
  Abstract The circadian clock regulates many aspects of physiology, energy metabolism, and sleep. Restricted feeding (RF), a regimen that restricts the duration of food availability entrains the circadian clock. Caffeine has been shown to affect both metabolism and sleep. However, its effect on clock gene and clock-controlled gene expression has not been studied. Here, we tested the effect of caffeine on circadian rhythms and the expression of disease and metabolic markers in the serum, liver, and jejunum of mice supplemented with caffeine under ad libitum (AL) feeding or RF for 16 weeks. Caffeine significantly affected circadian oscillation and the daily levels of disease and metabolic markers. Under AL, caffeine reduced the average daily mRNA levels of certain disease and inflammatory markers, such as liver alpha fetoprotein (Afp), C-reactive protein (Crp), jejunum alanine aminotransferase (Alt), growth arrest and DNA damage 45beta (Gadd45beta), Interleukin 1alpha (Il-1alpha), Il-1beta mRNA and serum plasminogen activator inhibitor 1 (PAI-1). Under RF, caffeine reduced the average daily levels of Alt, Gadd45beta, Il-1alpha and Il-1beta mRNA in the jejunum, but not in the liver. In addition, caffeine supplementation led to decreased expression of catabolic factors under RF. In conclusion, caffeine affects circadian gene expression and metabolism possibly leading to beneficial effects mainly under AL feeding.  
  Address Institute of Biochemistry, Food Science and Nutrition, Robert H. Smith Faculty of Agriculture, Food and Environment, The Hebrew University of Jerusalem, Rehovot 76100, Israel  
  Corporate Author Thesis  
  Publisher Place of Publication Editor  
  Language English Summary Language Original Title  
  Series Editor Series Title Abbreviated Series Title  
  Series Volume Series Issue Edition  
  ISSN 1357-2725 ISBN Medium  
  Area Expedition Conference  
  Notes PMID:21352949 Approved no  
  Call Number LoNNe @ kagoburian @ Serial 810  
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