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Food anticipation in Bmal1-/- and AAV-Bmal1 rescued mice: a reply to Fuller et al

Ralph E Mistlberger1 email, Ruud M Buijs2 email, Etienne Challet3 email, Carolina Escobar4 email, Glenn J Landry1 email, Andries Kalsbeek5 email, Paul Pevet3 email and Shigenobu Shibata6 email

Department of Psychology, Simon Fraser University, Burnaby, BC Canada

Instituto de Investigacíones Biomedicas, Universidad Nacional Autónoma de México, Mexico

Institut de Neurosciences Cellulaires et Intégratives, UPR3212, Centre National de la Recherche Scientifique, Université de Strasbourg, Strasbourg, France

Departamento de Anatomía, Fac de Medicina, Universidad Nacional Autónoma de México, Mexico

Netherlands Institute for Neuroscience, Amsterdam, the Netherlands

Department of Pharmacology, School of Science and Engineering, Waseda University, Tokyo, Japan

author email corresponding author email

Journal of Circadian Rhythms 2009, 7:11doi:10.1186/1740-3391-7-11

Published: 10 August 2009

Abstract

Evidence that circadian food-anticipatory activity and temperature rhythms are absent in Bmal1 knockout mice and rescued by restoration of Bmal1 expression selectively in the dorsomedial hypothalamus was published in 2008 by Fuller et al and critiqued in 2009 by Mistlberger et al. Fuller et al have responded to the critique with new information. Here we update our critique in the light of this new information. We also identify and correct factual and conceptual errors in the Fuller et al response. We conclude that the original results of Fuller et al remain inconclusive and fail to clarify the role of Bmal1 or the dorsomedial hypothalamus in the generation of food-entrainable rhythms in mice.


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