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. 2011 Jul 8;9:6. doi: 10.1186/1740-3391-9-6

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Copyright ©2011 Báez-Ruiz and Díaz-Muñoz; licensee BioMed Central Ltd.

This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/2.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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Per1-luc bioluminescence rhythms in liver explants treated with DMSO. (A) Peak phases (in ZT) from Per1-luc expression rhythms calculated from the first peak occurring at the beginning of the culture. The dashed rectangle inside the subjective light period indicates the former food-restricted schedule, and the vertical dotted line represents the former meal time of the FR rats. (B) Period from Per1-luc expression in liver cultures from AL (left bars) and FR (right bars) rats during and after (washout) DMSO treatment. All data plotted are presented as means ± SEM, n = 6. ⁺⁺Significant difference between AL vs. FR group on the indicated treatment day (Bonferroni post hoc test, α = 0.05).