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. 2008 Oct 27;3(10):e3530. doi: 10.1371/journal.pone.0003530

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Dardente et al.

This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are properly credited.

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A. Representative images for expression of Fbxl21 (top), Fbxl3 and the neuropeptides, Avp and Vip (bottom) in the hypothalamus of sheep sampled at ZT4-6. Sense controls for Fbxl riboprobes are also shown (top and middle right panels). B. Fbxl21 undergoes circadian expression in the SCN of the mouse. Top: mRNA profiles in the SCN of mice sampled at 6 different time-points (n = 5 per time-point) under either a 12/12 light-dark cycle (LD) or under constant darkness (DD). Data for ZT/CT0 are double-plotted. Bottom: representative in-situ autoradiograms. Note the SCN-restricted pattern of expression. Two-way ANOVA: time-effect, P<0.001, light condition×time interaction, p = 0.39. C. Fbxl3 does not show circadian expression in the SCN of the mouse. Representative images for expression of Fbxl3 in the brain of mouse sampled at ZT4 and ZT16. Note the ubiquitous pattern of labelling including diffuse expression in the SCN.