Wheel running and sleep in two strains of mice: Plasticity and rigidity in the expression of circadian rhythmicity
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Remembering how to run: A descriptive wheel run analysis in CF1 male and female mice
2022, IBRO Neuroscience ReportsCitation Excerpt :Similar results were described by Malorni et.al where wheel-running activity was inhibited by light and enhanced by darkness in C57 mice. Moreover, this circadian running rhythm was in accordance with the animals´ sleep pattern, where sleep was enhanced by light and inhibited by darkness (Oliverio and Malorni, 1979). Taking these results into account, wheel availability along the circadian cycle seems to play a key factor in the onset of the running behavior as, when given the opportunity, mice prefer to run in the active phase.
The impact of lactic acid and medium chain triglyceride on blood glucose, lactate and diurnal motor activity: A re-examination of a treatment of major depression using lactic acid
2019, Physiology and BehaviorCitation Excerpt :The circadian rhythm of that structure approximates a 24-h diurnal cycle. At the beginning of the rodent sleep period, locomotor activity is reduced [8,9]. Blood and brain lactate concentration also reliably oscillates according to the wake and sleep cycles of mice including a rise during rapid eye movement (REM) sleep [10].
Between and within laboratory reliability of mouse behaviour recorded in home-cage and open-field
2018, Journal of Neuroscience MethodsCitation Excerpt :Eliminating the stress of environmental novelty and handling is expected to lower variability during long-term continuous monitoring of animals (Tecott and Nestler, 2004) and therefore circadian rhythms and gross locomotor baseline activity may be assessed free from such confounders (Tang et al., 2002). Differences in home cage behaviour (Tang and Sanford, 2005; Tang et al., 2002) and circadian activity patterns (Loos et al., 2014; de Visser et al., 2006; Kopp, 2001; Ebihara et al., 1978; Oliverio and Malorni, 1979; Schwartz and Zimmerman, 1990) have been observed between inbred mouse strains. C57BL/6 mice robustly display higher levels of general activity compared to DBA/2 mice in home-cages (de Visser et al., 2006; Krackow et al., 2010), and also in the open field (Kafkafi et al., 2005; Logue et al., 1997; Wolfer et al., 2004).
Photopic visual input is necessary for emmetropization in mice
2013, Experimental Eye ResearchCitation Excerpt :Mice also have approximately 4 h of activity during the daytime (Flores et al., 2007; Yang et al., 2009), and they are asleep for approximately 3 h during the night (Flores et al., 2007; Yang et al., 2009). Considering that low intensity constant light (≤300 lux) does not disrupt circadian rhythms in mice (Aschoff, 1981; Oliverio, 1980; Oliverio and Malorni, 1979) and that only approximately 0.062% of light penetrates the eyelids in C57BL/6J mice when the eyes are closed (see Supplementary information, Section S4, Fig. S1), C57BL/6J mice placed in the constant light environment (∼200 lux in this study) are estimated to be exposed to approximately 13 h of photopic vision per 24-h day because they are active on average for approximately 9 h during the subjective 12-h night (C57BL/6J mice are asleep for approximately 3 h during the night) and approximately 4 h during the subjective 12-h day (C57BL/6J mice are asleep for approximately 8 h during the day) (Flores et al., 2007; Yang et al., 2009). Our results show that access to photopic vision is critical for emmetropization in mice because how well emmetropization functions appears to be directly related to the length of time per day during which mice are exposed to photopic visual stimulation.
Automated home cage observations as a tool to measure the effects of wheel running on cage floor locomotion
2005, Behavioural Brain ResearchLocomotor activity rhythm in inbred strains of mice: Implications for behavioural studies
2001, Behavioural Brain Research