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Latest Chronobiology Stories

2014-05-21 12:26:32

FECYT - Spanish Foundation for Science and Technology A possible pharmacology objective for chemotherapy Patients receiving chemical treatment for cancer often suffer fatigue and body weight loss, two of the most worrying effects of this therapy linked to the alteration of their circadian rhythms. The circadian system, better known as our biological clock, is responsible for coordinating all the processes that take place in our organism. If it does not function correctly, what is...

VIP Treatment For Jet Lag
2013-10-28 16:18:42

Washington University in St. Louis A brain chemical that desynchronizes the cells in the biological clock helps the clock adjust more quickly to abrupt shifts in daily light/dark schedules such as those that plague modern life A small molecule called VIP, known to synchronize time-keeping neurons in the brain's biological clock, has the startling effect of desynchronizing them at higher dosages, says a research team at Washington University in St. Louis. Far from being catastrophic,...

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...

How Is Protein Synthesis Controlled In The Brain Clock?
2013-08-22 05:21:41

April Flowers for redOrbit.com - Your Universe Online Many factors keep us from getting a good night’s sleep. Prime culprits include overnight flights across the ocean, graveyard shifts, and stress-induced insomnia. A new study from McGill and Concordia Universities gives hope, however, that these common sleep disturbances may one day be put to bed. The Earth’s rotation is responsible for creating day and night, and the daily rhythms of all living beings. Mammals have a “circadian...

Camping Can Help Reset Your Circadian Clock
2013-08-02 04:42:10

April Flowers for redOrbit.com - Your Universe Online According to a recently published study, the circadian clocks of eight people were successfully synched with the timing of sunrise and sunset by doing nothing more than spending one week exposed only to natural light while camping in the Rocky Mountains. The University of Colorado Boulder study found regardless of whether they were early birds or night owls during their normal lives, the synchronization happened for all participants...

Diverse Activity Patterns Of Birds During The Arctic Breeding Season
2013-06-19 11:17:58

Max-Planck-Gesellschaft Our internal circadian clock regulates daily life processes and is synchronized by external cues, the so-called Zeitgebers. The main cue is the light-dark cycle, whose strength is largely reduced in extreme habitats such as in the Arctic during the polar summer. Using a radiotelemetry system a team of researchers from the Max Planck Institute for Ornithology have now found, in four bird species in Alaska, different daily activity patterns ranging from strictly...

Urban Blackbirds Have Faster Circadian Rhythms Than Rural Relatives
2013-06-19 10:27:24

Brett Smith for redOrbit.com - Your Universe Online For years we have known about the differences between city slickers and country bumpkins, but a new study from the Max Planck Institute in Germany has shown that the different environments can have different effects on an organism´s natural biological rhythms. Along with ornithologists from the University of Maine and the University of Glasgow in Scotland, the Max Planck researchers studied the circadian rhythm of both urban and...

2012-10-05 14:25:56

Biologists from New York University have uncovered new ways our biological clock's neurons use electrical activity to help keep behavioral rhythms in order. The findings, which appear in the journal Current Biology, also point to fresh directions for exploring sleep disorders and related afflictions. "This process helps explain how our biological clocks keep such amazingly good time," said Justin Blau, an associate professor of biology at NYU and one of the study's authors. Blau added...

2012-08-30 10:42:15

When Thomas Edison tested the first light bulb in 1879, he could never have imagined that his invention could one day contribute to a global obesity epidemic. Electric light allows us to work, rest and play at all hours of the day, and a paper published this week in Bioessays suggests that this might have serious consequences for our health and for our waistlines. Daily or "circadian" rhythms including the sleep wake cycle, and rhythms in hormone release are controlled by a molecular clock...


Word of the Day
jument
  • A beast of burden; also, a beast in general.
'Jument' ultimately comes from the Latin 'jugum,' yoke.
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