Results 311 to 320 of about 396,990 (333)
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Circadian biomarkers, circadian genes and bipolar disorders
Journal of Physiology-Paris, 2011Bipolar disorders are associated with circadian deregulations both during acute mood episodes and during euthymic periods, suggesting that these circadian rhythms may represent trait markers of the disease. Several arguments demonstrate that deregulations of circadian rhythms may be part of the pathophysiology of bipolar disorders.
Vanessa Milhiet +3 more
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Neurology, 1994
Prompted by the observation that a fellow medical student sneezed at about the same time in class every morning, we recorded the time of each of the 118 sneezes she made on 69 days over a 6.5-month period. Analysis of the sneeze times with the goodness-of-fit test revealed a highly nonuniform distribution (p < 0.0001) with a significantly increased ...
A C, Grant, E P, Roter
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Prompted by the observation that a fellow medical student sneezed at about the same time in class every morning, we recorded the time of each of the 118 sneezes she made on 69 days over a 6.5-month period. Analysis of the sneeze times with the goodness-of-fit test revealed a highly nonuniform distribution (p < 0.0001) with a significantly increased ...
A C, Grant, E P, Roter
openaire +2 more sources
Annual Review of Physiology, 2001
▪ Abstract  The circadian clock is intrinsically linked to the daily cycle of day and night. A capacity for entrainment to light-dark cycles has proven to be a universal feature of the clock in all organisms examined. Here we review a wealth of recent advances that reveal more about the light input mechanisms by which the circadian clock is set to the
P F, Devlin, S A, Kay
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▪ Abstract  The circadian clock is intrinsically linked to the daily cycle of day and night. A capacity for entrainment to light-dark cycles has proven to be a universal feature of the clock in all organisms examined. Here we review a wealth of recent advances that reveal more about the light input mechanisms by which the circadian clock is set to the
P F, Devlin, S A, Kay
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2022
In this chapter, we will discuss mathematical models of the master circadian rhythm in the suprachiasmatic nucleus of the hypothalamus with a particular emphasis on models that incorporate the effect of light on circadian phase resetting and melatonin suppression.
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In this chapter, we will discuss mathematical models of the master circadian rhythm in the suprachiasmatic nucleus of the hypothalamus with a particular emphasis on models that incorporate the effect of light on circadian phase resetting and melatonin suppression.
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2020
Circadian rhythms are endogenous, near 24-hour oscillations that underlie nearly all facets of our health and behavior. The daily cycle of sleep and wake is the most conspicuous circadian-influenced behavior in humans. This chapter introduces the circadian rhythms in humans that give rise to our daily cycling of sleep and alertness, including their ...
Joyce, Daniel S., Zeitzer, Jamie M.
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Circadian rhythms are endogenous, near 24-hour oscillations that underlie nearly all facets of our health and behavior. The daily cycle of sleep and wake is the most conspicuous circadian-influenced behavior in humans. This chapter introduces the circadian rhythms in humans that give rise to our daily cycling of sleep and alertness, including their ...
Joyce, Daniel S., Zeitzer, Jamie M.
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A role of the circadian system and circadian proteins in aging
Ageing Research Reviews, 2007Circadian rhythms are genetically determined biological rhythms that are considered an important adaptive mechanism to the cyclical light/dark alterations in the Earth environment. Age-related changes in the circadian time-keeping mechanism are well known, and seemingly contribute to various pathologies of aging.
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2015
Due to the daily rotation of the Earth on its axis, nearly all organisms are exposed to daily cycles of environmental factors, including the intensity and quality of light, temperature, and other abiotic or physical factors, as well as changes in biotic factors such as presence of predators, competitors, and food.
Vincent M. Cassone, Vinod Kumar
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Due to the daily rotation of the Earth on its axis, nearly all organisms are exposed to daily cycles of environmental factors, including the intensity and quality of light, temperature, and other abiotic or physical factors, as well as changes in biotic factors such as presence of predators, competitors, and food.
Vincent M. Cassone, Vinod Kumar
openaire +2 more sources