Navigation Links
Differences in jet lag severity could be rooted in how circadian clock sets itself
Date:10/13/2011

in the Proceedings of the National Academy of Sciences. Co-authors are Mahboubeh Tavakoli-Nezhad, Christopher Lambert and David Weaver, also of the University of Massachusetts Medical School.

The researchers exposed hamsters to two light-dark cycles, one of 23.33 hours and the other at 24.67 hours, to test the mechanisms that advance and delay the circadian clock. A one-hour light pulse in the shorter cycle acted as dawn, but in the longer cycle it acted as dusk. The scientists confirmed that the pulse of light at dawn advanced the animals' circadian clocks, while the light at dusk delayed the clocks.

The results suggest that different molecular mechanisms in the suprachiasmatic nucleus are at work when the circadian clocks are advanced than when the clocks are delayed, de la Iglesia said.

That could provide clues for understanding how circadian clocks work in nocturnal animals in natural conditions, and it could help in understanding potential remedies for jet lag.


'/>"/>

Contact: Vince Stricherz
vinces@uw.edu
206-543-2580
University of Washington
Source:Eurekalert

Page: 1 2

Related biology news :

1. Researchers note differences between people and animals on calorie restriction
2. Study sheds light on genetic differences that cause a childhood eye disease
3. Study identifies genetic variants giving rise to differences in metabolism
4. Genetic differences between yeasts greater than those between humans and chimpanzees
5. Differences in neighborhood food environment may contribute to disparities in obesity
6. Differences among exercisers and nonexercisers during pregnancy
7. Differences among exercisers and nonexercisers during pregnancy
8. Risk of vibration-induced vascular injuries linked to vibration frequency differences
9. Tiny differences in our genes help shed light on the big picture of human history
10. Geography and history shape genetic differences in humans
11. Scientists demonstrate importance of niche differences in biodiversity
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:4/13/2015)... , April 13, 2015 ... TechSci Research, "Global Biometrics Market Forecast & Opportunities, 2020", ... a CAGR of around 14% till 2020. The ... for large scale implementation and review of biometric ... launch of new products with greater efficiency, are ...
(Date:4/9/2015)... 2015 Synaptics Inc. (NASDAQ: SYNA ), a ... it will report financial results for the third quarter ... the close of market. The company will host a ... p.m. PT (5:00 p.m. ET), during which management may ... the live call, analysts and investors should dial 888-438-5524 ...
(Date:4/2/2015)... , April 2, 2015 ... tests DERMALOG by far outperforms the strongest competitors, ... maintaining high accuracy, the system is capable of ... the speed proves up to be ten times ... than its runner-up performance.      (Photo: ...
Breaking Biology News(10 mins):Global Biometrics Market to Cross US$ 21 Billion by 2020: TechSci Research 2Synaptics to Report Third Quarter Results on April 23 2DERMALOG AFIS Emerges as Performance Winner in NIST Benchmark Test 2DERMALOG AFIS Emerges as Performance Winner in NIST Benchmark Test 3
... Greenland ice sheet can experience extreme melting even when temperatures ... Dr. Marco Tedesco, assistant professor in the Department of Earth ... His findings suggest that glaciers could undergo a self-amplifying ... halt. "We are finding that even if you don,t ...
... of us would love nothing more than to trick ourselves into ... a new brain imaging study reported in the November issue of ... just be a way. The key is to go with our ... findings suggest that a simple hormone-inspired pill could be the long-sought ...
... -- With salmonella-tainted ground turkey sickening more than 100 ... ability to detect outbreaks of food-borne illness and determine ... A new approach, reported online Oct. 14 in the ... collaborative team led by Cornell University scientists, will enable ...
Cached Biology News:Extreme melting on Greenland ice sheet, reports CCNY team 2Extreme melting on Greenland ice sheet, reports CCNY team 3Simple gut hormone combo makes our brains think we're full 2New test can precisely pinpoint food pathogens 2
(Date:4/30/2015)... The following is an open letter sent April ... Blood Corp (NYSE: CO ) from Jayhawk Capital. ... directors of China Cord Blood Corp (" China Cord ") ... share from Golden Meditech Holdings Co Ltd ("Golden Med"). Certainly, ... benefit Golden Med and Mr. Kam, the Chairman of both ...
(Date:4/30/2015)... SAN DIEGO , April 30, 2015 /PRNewswire/ ... company engaged in the development of biosimilar therapeutics ... today announced the closing of its previously announced ... common stock at a public offering price of ... full by the underwriters of their option to ...
(Date:4/30/2015)... WuXi PharmaTech (Cayman) Inc. ("WuXi" or the "Company") (NYSE: ... provider, today announced that its board of directors has ... 2015, from a consortium (the "Consortium") led by Dr. ... chief executive officer of the Company, and Ally Bridge ... "Transaction") involving the acquisition of all outstanding shares of ...
(Date:4/30/2015)... SureClinical, a leader in cloud-based health science ... SureClinical’s executive team as Chief Financial Officer. ... with over 25 years in leadership roles ranging from ... Morris joins SureClinical from Marrone Bio Innovations (MBI), a ... MBI from its founding in 2006 until 2011, when ...
Breaking Biology Technology:April 30, 2015 Open Letter to the Board of China Cord Blood Corp from Jayhawk Capital 2April 30, 2015 Open Letter to the Board of China Cord Blood Corp from Jayhawk Capital 3April 30, 2015 Open Letter to the Board of China Cord Blood Corp from Jayhawk Capital 4April 30, 2015 Open Letter to the Board of China Cord Blood Corp from Jayhawk Capital 5Pfenex Inc. Announces Closing of Public Offering of Common Stock and Full Exercise of Underwriters' Option to Purchase Additional Shares 2WuXi PharmaTech Announces Receipt of Proposal 2WuXi PharmaTech Announces Receipt of Proposal 3WuXi PharmaTech Announces Receipt of Proposal 4WuXi PharmaTech Announces Receipt of Proposal 5WuXi PharmaTech Announces Receipt of Proposal 6Julie I. Morris Joins SureClinical as Chief Financial Officer 2
... Pharmaceuticals, Inc. (Nasdaq: RIGL ) today announced that ... is scheduled to present a company overview at Citi,s 4th ... 1st at 10:40 a.m. EDT.To access the live audio webcast ... . Please connect to Rigel,s website several minutes prior to ...
... of Magnetic Resonance techniques including those used in hospital ... at the University of York. , Ultimately, the technique, ... shuttle, is expected to allow doctors to learn far ... at lower cost while increasing the range of medical ...
... Transform Diabetes CareIRVINE, Calif., March 26 On March ... its prestigious global diabetes research award. The award was ... Diabetes Monitoring Index Test , which uses glycated ... sugar in the body.(Photo: http://www.newscom.com/cgi-bin/prnh/20090326/LA89768 )Diabetes is ...
Cached Biology Technology:Transforming medical diagnosis with new scanning technology 2Frost & Sullivan Award Highlights Opportunity for 'Main Street' Biotech 2
Human DC-SIGNR/CD209L MAb (Clone 120604)...
Human DPPII/QPP/DPP7 Biotinylated Affinity Purified PAb ENTREZ GeneID: 29952...
Human SorCS1 Affinity Purified Polyclonal Ab Protein Family: Neurotrophins...
Human Apolipoprotein B100 Affinity Purified Polyclonal Ab ENTREZ GeneID: 338...
Biology Products: