Navigation Links
Immune System Works Better at Night
Date:12/15/2008

Greater success fighting infection than during the day, study says

MONDAY, Dec. 15 (HealthDay News) -- A good night's sleep really does a sick body good, new research says.

Stanford University research with fruit flies reveals that the immune system fights invading bacteria the hardest at night and the least during the day. The findings were to be presented Sunday at the American Society for Cell Biology annual meeting, in San Francisco.

"These results suggest that immunity is stronger at night, consistent with the hypothesis that circadian proteins upregulate restorative functions such as specific immune responses during sleep, when animals are not engaged in metabolically costly activities," Stanford researcher Mimi Shirasu-Hiza said in a news release issued by the conference organizers.

Circadian rhythm paces the human body as well as the fruit fly, running internal clock's time for eating and rest every day.

The researchers noted that previous experiments with flies found that bacterial infection threw off the insects' circadian rhythm, and not having this internal clock working properly made them highly susceptible to infection.

In this experiment, the researchers infected the flies with two different bacteria at different times of day or night. Those infected at night were more likely to survive than those infected during the day. The researchers also detected low "phagocytic" activity -- the body's innate immune response -- in flies with a corrupt circadian clock.

More information

The National Sleep Foundation has more about how sleep works.



-- Kevin McKeever



SOURCE: American Society for Cell Biology, news release, Dec. 14, 2008


'/>"/>
Copyright©2008 ScoutNews,LLC.
All rights reserved

Related medicine news :

1. Snoring or soaring? Strength of fruit-fly immune system varies
2. REGiMMUNE to present GvHD data at the 50th ASH Annual Meeting
3. Special Immune Cells May Be Key to HIV Resistance
4. Moms Cells Prime Fetal Immune System
5. Cold Spring Harbor Protocols features tissue culture methods for immune cells and neurons
6. Study unmasks how ovarian tumors evade immune system
7. Way to Rescue Tired Immune Cells Fighting HIV Found
8. The Neuropathy Associations Scientific Research Grants Focus: Autoimmune and Chemotherapy-Induced Neuropathies
9. Previously unknown immune cell may help those with Crohns and colitis
10. Parasites that live inside cells use loophole to thwart immune system
11. Persistent bacterial infection exploits killing machinery of immune cells
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:10/12/2017)... (PRWEB) , ... October 12, 2017 , ... Planet Fitness, ... the U.S., announced today its plans to open a flagship location in Covington, LA ... the former Rooms To Go store next to Office Depot in the Holiday Square ...
(Date:10/12/2017)... ... October 12, 2017 , ... The American College of ... Carol Friedman, PhD, FACMI, during the Opening Session of AMIA’s Annual Symposium in Washington, ... In honor of Morris F. Collen, a pioneer in the field of medical informatics, ...
(Date:10/12/2017)... LOS ANGELES (PRWEB) , ... October 12, 2017 ... ... of Parsa Mohebi Hair Restoration, has recently contributed a medical article to the ... doctors, on cosmetictown.com. Dr. Mohebi’s article spotlights the hair transplant procedure known as ...
(Date:10/12/2017)... FL (PRWEB) , ... October 12, 2017 , ... On ... holding a treadmill relay – Miles by Moonlight to raise money for the American ... $300 or more. , Teams will work together to keep their treadmills moving ...
(Date:10/12/2017)... ... 12, 2017 , ... In the United States, single-family home ... states—like New York, New Jersey, Massachusetts, Texas, Virginia, Connecticut, and California—the average is ... low property-tax rates, which contributes to the relatively lower cost of living in ...
Breaking Medicine News(10 mins):
(Date:10/2/2017)... Oct. 2, 2017 Diplomat Pharmacy, Inc. (NYSE: ... Software and Consulting, LLC , and named its founder ... based in Tennessee , will operate ... expands EnvoyHealth,s service offerings for health care partners to ... "In an interoperable world, technology ...
(Date:10/2/2017)... PHILADELPHIA , Oct. 2, 2017 Halo Labs announces ... particle analysis system called the HORIZON at MIBio 2017 in ... analyzes subvisible and visible particulate matter in biopharmaceutical samples with unprecedented ... use of the novel technique Backgrounded Membrane Imaging. ... The HORIZON subvisible particle analysis system ...
(Date:9/28/2017)... , Sept. 28, 2017 Cohen Veterans ... advance the use of wearable and home sensors for ... disorders. Early Signal Foundation, a nonprofit organization focused on ... will provide an affordable analytical system to record and ... ...
Breaking Medicine Technology: