News tagged with clock genes
Barley takes a leaf out of reindeer's book in the land of the midnight sun
Barley grown in Scandinavian countries is adapted in a similar way to reindeer to cope with the extremes of day length at high latitudes. Researchers have found a genetic mutation in some Scandinavian barley ...
May 11, 2012 |
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Earth history and evolution
In classical mythology, the cypress tree is associated with death, the underworld and eternity. Indeed, the family to which cypresses belong, is an ancient lineage of conifers, and a new study of their evolution affords a ...
May 03, 2012 |
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Clock gene helps plants prepare for spring flowering, study shows
Scientists have made fresh discoveries about the processes that govern plants' internal body clocks and help them adjust to changing seasons, triggering the arrival of flowers in spring.
Mar 08, 2012 |
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Biologists discover an 'evening' protein complex that regulates plant growth
Farmers and other astute observers of nature have long known that crops like corn and sorghum grow taller at night. But the biochemical mechanisms that control this nightly stem elongation, common to most plants, have been ...
Jul 13, 2011 |
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Experimental work proves theory that circadian body clock requires delay to function properly
For more than 20 years, theoretical mathematical models have predicted that a delay built into a negative feedback system is at the heart of the molecular mechanism that governs circadian clocks in mammalian ...
Mar 25, 2011 |
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Waking up is hard to do: Scientists identify a gene important for the daily rhythms of the sleep-wake cycle
Northwestern University scientists have discovered a new mechanism in the core gears of the circadian clock. They found the loss of a certain gene, dubbed "twenty-four," messes up the rhythm of the common fruit fly's sleep-wake ...
Medicine & Health / Medical research
Feb 16, 2011 |
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Breakthrough in worm research has implications for human disease studies
It's just a worm, a tiny soil-dwelling nematode worm – but the implications are big for biomedicine and circadian biology as shown in a recent study authored by University of Nevada, Reno researcher Alexander van der ...
Dec 17, 2010 |
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Plant clock gene also works in human cells
A gene that controls part of the 'tick tock' in a plant's circadian clock has been identified by UC Davis researchers. And not only is the plant gene very similar to one in humans, but the human gene can work in plant cells ...
Dec 01, 2010 |
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Rare disease reveals new path for creating stem cells
(PhysOrg.com) -- As debilitating as disease can be, sometimes it acts as a teacher. Researchers at Harvard Medical School and the Harvard School of Dental Medicine have found that by mimicking a rare genetic ...
Medicine & Health / Medical research
Nov 21, 2010 |
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Keeping the daily clock ticking in a fluctuating environment: Hints from a green alga
Researchers in France have uncovered a mechanism which explains how biological clocks accurately synchronize to the day/night cycle despite large fluctuations in light intensity during the day and from day to day. Following ...
Nov 11, 2010 |
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Of worms and women: Common causes for reproductive decline with age
In worms as in women, fertility declines at a rate that far exceeds the onset of other aging signs. And now a new report in the October 15th issue of Cell, a Cell Press publication, suggests that worms' and humans' biolog ...
Oct 14, 2010 |
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Chronic drinking can disrupt circadian rhythms
Circadian rhythmicity is regulated by circadian clock genes, and animal studies have shown that chronic drinking can alter expressions in these genes. A new study has found that significantly lower levels of messenger ribonucleic ...
Medicine & Health / Medical research
Aug 24, 2010 |
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Disrupted circadian rhythm may cause triglycerides to rise
When the circadian rhythm gets thrown off, it could come with an unexpected side effect: high triglycerides. The discovery, based on studies in mice with a "broken clock," helps to explain the normal rise and fall in triglycerides, ...
Medicine & Health / Medical research
Aug 03, 2010 |
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Disruption of circadian rhythm could lead to diabetes
Disruption of two genes that control circadian rhythms can lead to diabetes, a researcher at UT Southwestern Medical Center has found in an animal study.
Medicine & Health / Medical research
Jul 13, 2010 |
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Biologists identify genes regulating sleeping and feeding
In the quest to better understand how the brain chooses between competing behaviors necessary for survival, scientists at the University of Massachusetts Medical School and New York University have isolated two genes in the ...
Jun 10, 2010 |
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