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Discovery of differentially expressed genes in the intestines of Pelteobagrus vachellii within a light/dark cycle.

Published in Chronobiology international

In aquaculture, it is necessary to determine of the diurnal biological variations in the intestines to determine an appropriate feeding schedule. The present study aimed to examine the transcriptomes of the Pelteobagrus vachellii intestines at four time points (0 h, 6 h, 12 h, and 18 h) within a light/dark cycle. In comparison with the zeitgeber ti...

Does before-bedtime body warming by bathing or other means attenuate sleep-time arterial blood pressure?

Published in Chronobiology international

Melatonin mends adverse temporal effects of bright light at night partially independent of its effect on stress response...

Published in Chronobiology international

Ecological artificial light at night (ALAN) has been increasingly associated with negative effects on the behavior and ecology of wild birds. However, the impacts of short-term bright ALAN on the temporal biology of companion animals and the underlying mediating mechanism are unknown. We evaluated impacts of 1X60-min/middle night ALAN (200 lux, λDo...

Altering meal timing to improve cognitive performance during simulated nightshifts.

Published in Chronobiology international

Altering meal timing could improve cognition, alertness, and thus safety during the nightshift. This study investigated the differential impact of consuming a meal, snack, or not eating during the nightshift on cognitive performance (ANZCTR12615001107516). 39 healthy participants (59% male, age mean±SD: 24.5 ± 5.0y) completed a 7-day laboratory stu...

Chronotype, social jetlag, and time perspective.

Published in Chronobiology international

The phase of entrainment (chronotype) is known to be associated with time perspective (TP), suggesting that the state of circadian system is involved in the long-term planning of human life. However, little is known regarding the influence of circadian misalignment on long-term planning ability. The aim of this study was to investigate the associat...

Performance comparison of different interpretative algorithms utilized to derive sleep parameters from wrist actigraphy ...

Published in Chronobiology international

We compared performance of four popular interpretative algorithms (IAs), i.e., Cole-Kripke, Rescored Cole-Kripke, Sadeh, and UCSD, utilized to derive sleep parameters from wrist actigraphy data. We conducted in-home sleep study of 40 healthy adults (17 female/23 male; age 26.7 ± 12.1 years), assessing sleep variables both by Motionlogger® Micro Wat...

Performance assessment of new-generation Fitbit technology in deriving sleep parameters and stages.

Published in Chronobiology international

We compared performance in deriving sleep variables by both Fitbit Charge 2™, which couples body movement (accelerometry) and heart rate variability (HRV) in combination with its proprietary interpretative algorithm (IA), and standard actigraphy (Motionlogger® Micro Watch Actigraph: MMWA), which relies solely on accelerometry in combination with it...

Eveningness and poor sleep quality contribute to depressive residual symptoms and behavioral inhibition in patients with...

Published in Chronobiology international

Eveningness and sleep disturbances are considered as markers of Bipolar Disorder (BD) and influence mood and emotional or behavioral states. This study investigates the associations between circadian markers and sleep quality on residual depressive symptoms and inhibition/activation dimensions during the euthymic phase. A sample of 89 euthymic adul...

Interrelationships between distinct circadian manifestations of possible bruxism, perceived stress, chronotype and socia...

Published in Chronobiology international

This study investigates the recently hypothesized association between distinct circadian manifestations of possible bruxism in subjects with different chronotype profiles, social jetlag and levels of perceived stress. A cross-sectional study was performed by surveying dental students' of Lithuanian University of Health Sciences. A survey instrument...

Diurnal and day-to-day variations in isometric and isokinetic strength.

Published in Chronobiology international

Time-of-day effects in strength performance have been extensively investigated due to their relevance in competitive sports. However, most studies use large measurement intervals making it difficult to monitor potential performance changes throughout the day. Furthermore, previous studies have exclusively focused on how the time of day affects stre...