Chronobiol Int 2015 Apr 25;32(3):395-404. Epub 2014 Nov 25.
Faculty of Biology, Department of Physiology, University of Murcia , Murcia , Spain and.
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Exp Gerontol 2013 May 4;48(5):507-16. Epub 2013 Mar 4.
Department of Physiology, Faculty of Biology, University of Murcia, 30100 Murcia, Spain.
Adult (48-week-old) and senescent (72-week-old) individually-kept Nothobranchius korthausae were used as experimental subjects to characterise circadian system (CS) function and age-related changes in senescent fish. This species was specifically chosen because it has already shown potential for use as a model system in gerontological studies. The rest-activity rhythm (RAR) in fish can be easily monitored and used to characterise the state of the CS, and it has also been proposed as a reliable model to study sleep-like periods in fish. Read More
Exp Gerontol 2011 Dec 28;46(12):970-8. Epub 2011 Aug 28.
Department of Physiology, University of Murcia, Spain.
The life cycle of Nothobranchius korthausae, a Cyprinodontiformes fish, was studied in our laboratory to characterise the ageing process. Some morphological changes, such as spine curvature, skin colour, and fin and eye appearance are described. Growth and survival curves reflected a fast life cycle with rapid initial growth until 4weeks of age, after which the fish grew more slowly before reaching their final size in week 40. Read More
Behav Processes 2006 Feb 18;71(2-3):211-25. Epub 2006 Jan 18.
Department of Biology, Brandeis University, 415 South Street, MS-008, Waltham, MA 02454, USA.
Circadian clocks include control systems for organizing daily behavior. Such a system consists of a time-keeping mechanism (the clock or pacemaker), input pathways for entraining the clock, and output pathways for producing overt rhythms in behavior and physiology. In Drosophila melanogaster, as in mammals, neural circuits play vital roles in all three functional subdivisions of the circadian system. Read More
Arch Insect Biochem Physiol 2001 Nov;48(3):155-66
Department of Entomology, National Taiwan University, Taipei, Taiwan.
ERG recordings from German cockroaches showed that the amplitude of light-evoked responses have a circadian rhythmicity in adult males that coincided with the locomotor circadian rhythm. The peak of the response occurred during the subjective night, and the circadian period was less than 24 h under DD condition. In contrast, although the locomotor circadian rhythm was masked by the development of ovaries and pregnancy in females, their visual responses displayed circadian rhythmicity. Read More