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Latest Circadian oscillator Stories

2014-04-18 14:18:55

Fruit flies are pretty predictable when it comes to scheduling their days, with peaks of activity at dawn and dusk and rest times in between. Now, researchers reporting in the Cell Press journal Cell Reports on April 17th have found that the clusters of brain cells responsible for each of those activity peaks—known as the morning and evening oscillators, respectively—don't work alone. For flies' internal clocks to follow the sun, cooperation is key. "Without proper synchronization,...

2014-04-16 10:13:27

All organisms, from mammals to fungi, have daily cycles controlled by a tightly regulated internal clock, called the circadian clock. The whole-body circadian clock, influenced by the exposure to light, dictates the wake-sleep cycle. At the cellular level, the clock is controlled by a complex network of genes and proteins that switch each other on and off based on cues from their environment. Most genes involved in the regulation of the circadian clock have been characterized, but Akihiro...

Health Effects Of Jet Lag Night Shift
2014-01-21 14:07:33

Lee Rannals for redOrbit.com - Your Universe Online Sleep and systems biology researchers from the University of Surrey found that jet lag or working the late shift could have a significant impact on health. Researchers placed 22 participants on a 28-hour day schedule, delaying their sleep-wake cycle by four hours each day until sleep occurred during the middle of the day. The team then collected blood samples to measure the participants' rhythms of gene expression. The...

2014-01-15 14:20:42

Researchers at the University of Cincinnati (UC) have identified key molecular components linking circadian rhythms and cell division cycles in Neurospora crassa, providing insights that could lead to improved disease treatments and drug delivery. The researchers in the UC College of Medicine Department of Molecular and Cellular Physiology, led by Christian Hong, PhD, published their findings Monday, Jan. 13, online ahead of print in PNAS (Proceedings of the National Academy of Sciences)....

Internal Clock Helps Marine Animals Follow The Tides
2013-09-26 15:39:27

Lee Rannals for redOrbit.com - Your Universe Online Marine animals have an internal clock to help them keep up with their schedules, according to findings published in the journals Current Biology and Cell Reports. The new findings suggest that these animals may be using these clocks as standard operating equipment. "The discovery of the circadian clock mechanisms in various terrestrial species from fungi to humans was a major breakthrough for biology," says Charalambos Kyriacou of the...


Word of the Day
negawatt
  • A unit of saved energy.
Coined by Amory Lovins, chairman of the Rocky Mountain Institute as a contraction of negative watt on the model of similar compounds like megawatt.