Navigation Links
Chronic jet-lag conditions hasten death in aged mice

ate that there may be a differential effect of mortality depending on the direction of the schedule shift--forward or backward. Schedule "advancers" did more poorly in the present experiment than did "delayers."

Notably, the researchers found that chronic stress--as measured by daily corticosterone levels--did not increase in the old mice experiencing the light-cycle shifts. The underlying cause of the increased mortality is not yet clear, but could involve sleep deprivation or immune-system disruption.

The body's physiological reaction to time change may be complex. Past research has indicated that circadian clocks govern physiological rhythms in a great variety of tissues in the body, and that different aspects of the physiological clock can adjust to schedule changes at different rates. The researchers speculate that the internal lack of synchrony among different physiological oscillations may have serious health consequences that are exacerbated in aged animals.
'"/>

Source:Cell Press


Page: 1 2

Related biology news :

1. FDA Clears the Way for Generic Versions of Transdermal Patches to Treat Chronic Pain
2. Chronic Sinus Infection Thought To Be Tissue Issue, Mayo Clinic Scientists Show Its Snot
3. FDA Approves New Treatment for Chronic Hepatitis B
4. Chronic pain up almost 40 percent among US workers in past decade
5. Chronic fatigue syndrome impairs a persons slow wave activity during sleep
6. Plant genes identified that can form basis for crops better adapted to environmental conditions
7. Life in deadly conditions
8. UF scientists test improved gene therapy method for hereditary heart conditions
9. Food-crop yields in future greenhouse-gas conditions lower than expected
10. How badger culling creates conditions for spread of bovine TB
11. Study challenges myth that sex late in pregnancy hastens birth
Post Your Comments:
*Name:
*Comment:
*Email:
TAG: Chronic jet lag conditions hasten death aged mice

(Date:4/17/2014)... that fish consumption advisories for expecting mothers are ... like persistent organic pollutants (POPs). , The ... University of Toronto Scarborough PhD student Matt Binnington ... levels of environmental contamination, a mother,s compliance with ... body influenced exposure in her children. , Their ...
(Date:4/17/2014)... A Kansas State University engineer has developed ... remotely detects improvised explosive devices. The same technique ... Dunn, the Steven M. and Kay L. Theede ... and nuclear engineering, and his research team have ... underground or in car trunks. The distance detection ...
(Date:4/17/2014)... in Europe, Asia and the United States are spreading ... impacting native honeybee populations at this time, according to ... including Nosema microsporidia and Varroa ... to these invasive pests, which suggests to us that ... and the United States currently are not necessary in ...
Breaking Biology News(10 mins):Fish consumption advisories fail to cover all types of contaminants 2Patented research remotely detects nitrogen-rich explosives 2East African honeybees are safe from invasive pests… for now 2East African honeybees are safe from invasive pests… for now 3
... who are especially reactive to stress are more vulnerable ... than their peers. But a new longitudinal study suggests ... do well when they,re raised in supportive environments. ... Columbia, the University of California, San Francisco, and the ...
... scientists at Rice University have discovered a new technique ... with tiny explosions. The scientists used lasers to make ... on cancer cells, they found they could tune the ... visible but harmless or large bubbles that burst the ...
... conducted at the University of Maryland,s bat lab shows Egyptian ... sonar directly at it. Instead, they alternately point the sound ... by researchers from Maryland and the Weizmann Institute of Science ... to pinpoint the location of a target, but also makes ...
Cached Biology News:High sensitivity to stress isn't always bad for children 2Rice physicists kill cancer with 'nanobubbles' 2'Zen' bats hit their target by not aiming at it 2'Zen' bats hit their target by not aiming at it 3
(Date:1/15/2014)... The Microcompetition with Foreign DNA theory explains ... these latent viruses is the Epstein Barr Virus (EBV), and ... (RA) is a chronic inflammatory disease that destroys the body’s ... RA patients have high concentrations of EBV DNA in their ...
(Date:1/15/2014)... 2014 2013 was a banner year ... Technologies®. They saw continued independent research led by the ... awarded a $1 million grant from the Susanne Marcus ... Behavior” a peer reviewed journal, Amy Grant highlighted Brainwave ...
(Date:1/15/2014)... 2014 AudioNotch is the internet's leading ... the treatment of tinnitus. Patients listen to sound therapy ... a period of weeks to months, their tinnitus volume decreases. ... forms: Notched Music and Notched White Noise. Now, AudioNotch is ...
(Date:1/14/2014)... January 14, 2014 Date: Friday, April 11, ... Warrington Country Club, 1360 Almshouse Road, Warrington, Pa. ... organization solely dedicated to finding a cure for hepatitis B ... will host its annual Crystal Ball on Friday, April 11 ...
Breaking Biology Technology:Study: Rheumatoid Arthritis (RA) Patients Have EBV; The CBCD Says this is Consistent with Microcompetition 2Study: Rheumatoid Arthritis (RA) Patients Have EBV; The CBCD Says this is Consistent with Microcompetition 3Dynamic Innovative Technology Showcased at Scottsdale Company’s Open House 2Dynamic Innovative Technology Showcased at Scottsdale Company’s Open House 3Hepatitis B Foundation to Host Annual Crystal Ball Gala 2
... love this provider of really useful, reliable, and not to mention ... fact came to light a few weeks ago when the Internet ... gourmet chefs to prepare meals (free to employees) for its brainy ... will soon be leaving to start a chain of natural foods ...
... all the time. A company hires an independent computer programmer ... uses to run an important part of its business. All ... ,Even when there is a written contract, the specifics of ... not addressed. , ,Years later (perhaps as a result of ...
... Wis. -- Researchers at the USDA Forest Service ... agencies and the pulp and paper industry in an ... of the paper commonly used in business and government ... , ,The federal government annually buys some 500,000 tons ...
Cached Biology Technology:Is Google's cafeteria a competitive weapon? 2Is Google's cafeteria a competitive weapon? 3Is Google's cafeteria a competitive weapon? 4Who owns software developed for your company? 2Who owns software developed for your company? 3Who owns software developed for your company? 4Reducing brightness to make a better paper 2Reducing brightness to make a better paper 3
... refrigerators, freezers, or liquid nitrogen. Conveniently sized to fit ... coding to project, user, lab, etc. Holes in the ... circulation. Supplied with 10 x 10 (11.6 mm cell) ... 13 x 13 x 5.1 cm H (5 1/4 ...
Similar to proteasome (prosome, macropain) 26S subunit, ATPase, 1 Antigen: Recombinant Protein...
4-Hydroxy-3-iodo-5-nitrophenylacetyl hapten is conjugated to BSA protein through lysine by amide bonds....
...
Biology Products: