Your circadian clock is wired in your genes. University of Tokyo scientists have found three new genes that allow cells to adapt to daily changes in environmental conditions by adjusting their internal "body clock" or the circadian clock responsible for regular sleep-wake cycles.
Circadian rhythms are found in almost all organisms with sensitivity to light.
Circadian Rhythm Sleep Disorders
Circadian rhythm (also known as sleep/wake cycle or the body clock) is a biological process that follows an internal cycle of roughly 24 hours.
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‘Circadian regulation may be directly connected to cellular stress. The new finding hints for later drug discovery for a tool to regulate circadian rhythms.’
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The study revealed that signal-regulating kinase 1, 2, and 3 (Ask1, Ask2, Ask3) genes are necessary in order to respond to both sudden changes to the environment and gradual changes over time.
Normal mice were found to be able to change their wake-up time the next morning after unexpected light exposure during the night, as measured by their activity running on a wheel.
![Quiz on Sleep Disorder]( "Quiz on Sleep Disorder")
The comfort of modern life comes at the cost of restful sleep! "Laugh and the world laughs with you, snore and you sleep alone-Anthony Burgess" Scientifically it is proven that a good night's sleep is imperative for maintaining a balance between the physical, emotional and behavioral well-being of a person.
However, mice without the Ask genes have less ability to synchronise their circadian clock to changes in environmental light-dark cycles, the researchers said, in a paper published in the journal Proceedings of the National Academy of Sciences.
"Many researchers in this field have long suspected oxidative stress and circadian rhythms are somehow connected because of the cycles of photosynthesis and DNA replication we see even in ancient organisms," said Yoshitaka Fukada, Professor at the University of Tokyo.
"We are very excited about our results because we can approach the origin of the circadian clock by connecting oxidative stress and circadian regulation through the Ask genes," Fukada added.
The disruptions in circadian rhythms, especially among shift workers and elderly, are related to increased risk of high blood pressure (hypertension), metabolic disorders and insomnia.
Source: IANS
Quiz on Sleep Disorder
The comfort of modern life comes at the cost of restful sleep! "Laugh and the world laughs with you, snore and you sleep alone-Anthony Burgess" Scientifically it is proven that a good night's sleep is imperative for maintaining a balance between the physical, emotional and behavioral well-being of a person.
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However, mice without the Ask genes have less ability to synchronise their circadian clock to changes in environmental light-dark cycles, the researchers said, in a paper published in the journal Proceedings of the National Academy of Sciences.
"Many researchers in this field have long suspected oxidative stress and circadian rhythms are somehow connected because of the cycles of photosynthesis and DNA replication we see even in ancient organisms," said Yoshitaka Fukada, Professor at the University of Tokyo.
"We are very excited about our results because we can approach the origin of the circadian clock by connecting oxidative stress and circadian regulation through the Ask genes," Fukada added.
The disruptions in circadian rhythms, especially among shift workers and elderly, are related to increased risk of high blood pressure (hypertension), metabolic disorders and insomnia.
Source: IANS
Epworth Sleepiness Scale
Measure your daytime sleepiness using this simple interactive tool, based on Epworth Sleepiness disorder Scale. Excessive Daytime Sleepiness is a type of hypersomnia characterized by persistent sleepiness and lack of energy.
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 Tuning of Internal Body Clock Better UnderstoodA new way that internal body clocks are regulated by a type of molecule known as long non-coding RNA has been found by researchers at UT Southwestern Medical Center. | Advertisement
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