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Name
Journal of Circadian Rhythms
Type
Journal
Items
133 Publications
Compatibility
OpenAIRE 3.0 (OA, funding)
OAI-PMH
http://www.jcircadianrhythms.com/index.php/up/oai

 

  • Diurnal Preference Predicts Phase Differences in Expression of Human Peripheral Circadian Clock Genes

    Ferrante, Andrew; Gellerman, David; Ay, Ahmet; Woods, Kerri Pruitt; Filipowicz, Allan Michael; Jain, Kriti; Bearden, Neil; Ingram, Krista Kenyon (2015)
    Background: Circadian rhythms play an integral role in human behavior, physiology and health. Individual differences in daily rhythms (chronotypes) can affect individual sleep-wake cycles, activity patterns and behavioral choices. Diurnal preference, the tendency towards morningness or eveningness among individuals, has been associated with interpersonal variation in circadian clock-related output measures, including body temperature, melatonin levels and clock gene mRNA in blood, oral mucosa...

    Daily Rhythms of Blood Parameters in Broiler Chickens Reared under Tropical Climate Conditions

    Makeri, Harold Kuta; Ayo, Joseph Olusegun; Aluwong, Tagang; Minka, Ndazo Salka (2017)
    Several studies carried out on humans and other mammals show that the temporal organisation of haematological parameters in the blood exhibit daily rhythms; however, such studies have been rare in poultry reared under a natural photoperiod. The present study investigated the occurrence of daily rhythms in blood parameters of broiler chickens kept under tropical climatic conditions. Ten 6–7-week-old broiler chickens served as subjects of the study. They were kept in standard individual cages u...

    Effects of Cold-Dry (Harmattan) and Hot-Dry Seasons on Daily Rhythms of Rectal and Body Surface Temperatures in Sheep and Goats in a Natural Tropical Environment

    Minka, Ndazo S.; Ayo, Joseph O. (2016)
    Studies on daily rhythmicity in livestock under natural conditions are limited, and there is mounting evidence that rhythm patterns differ between chronobiological studies conducted in the laboratory and studies conducted under pronounced natural seasonality. Here, we investigated the influence of cold-dry (harmattan) and hot-dry seasons on daily rhythmicity of rectal (RT) and body surface temperatures (BST) in indigenous sheep and goats under natural light-dark cycles. The RT and BST of the ...

    Intermittent Food Absence Motivates Reallocation of Locomotion and Feeding in Spotted Munia (Lonchura punctulata)

    Srivastava, Amrita; Malik, Shalie; Yadav, Garima; Rani, Sangeeta (2015)
    Background: Daily feeding and locomotion are interrelated behaviours. The time spent in feeding and rate of food intake depends on food availability. In low food condition, the birds would show intense movement (locomotion) for a longer time throughout the day however during abundant food supply they may chose higher activity and food intake in the morning and evening only. In the present study we hypothesized that in Spotted Munia (Lonchura punctulata), intermittent food availability during ...

    Circadian behavior of mice deficient in PER1/PML or PER2/PML

    Miki, Takao; Chen-Goodspeed, Misty; Zhao, Zhaoyang; Lee, Cheng Chi (2013)
    Background Our recent studies demonstrate that the murine homolog of the human tumor suppressor promyelocytic leukemia (PML) regulates circadian behavior of mice. To further gather insight into PML?s contribution to circadian behavior, we generated two strains of mice deficient in one of the two period (Per) genes and the PML gene, with Per1 ?/? /Pml ?/? and Per2 ?/? /Pml ?/? genotypes. Results Here we report the circadian behavior of these mice based on wheel-running behavioral analysis. In ...
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