A guideline for analyzing circadian wheel-running behavior in rodents under different lighting conditions

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Author: Jud, C
Author: Albrecht, U
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A guideline for analyzing circadian wheel-running behavior in rodents under different lighting conditions

Corinne Jud¹, Isabelle Schmutz¹, Gabriele Hampp¹, Henrik Oster² and Urs Albrecht¹^*

¹ Department of Medicine, Division of Biochemistry, University of Fribourg. 1700 Fribourg. Switzerland.
² Max-Planck-Institute for Experimental Endocrinology. 30625 Hannover. Germany.

* To whom correspondence should be addressed: Urs Albrecht, Department of Medicine, Division of Biochemistry, University of Fribourg. 1700 Fribourg. Switzerland. Phone: +41 (0)26 300 86 36. Email: urs.albrecht@unifr.ch

Biol. Proced. Online 2005;7:101-116. doi:10.1251/bpo109
Submitted: April 25, 2005; Accepted: June 20, 2005; Published: July 13, 2005.

Indexing terms: Photoperiod; Chronobiology; Circadian Rhythm; Mice.

Figure 6 Enlarged

Fig. 6:

Wheel-running cages and isolation cabinets. (A) Individually housed mouse in a wheel-running cage connected via a magnetic switch to the system recording wheel revolutions. On each rotation of the running wheel, the magnetic switch is once opened and closed. (B) Detailed view of the magnet (upper arrow) and the magnetic switch (lower arrow). (C) Schematic representation of a ventilated isolation cabinet (200 x 62 cm) offering space for 12 wheel-running cages. The arrows represent the airflow through the cabinet. (D) Picture of a fully occupied isolation cabinet with two light bulbs at the ceiling.

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