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:10/13/2017)... ... 2017 , ... The Visiting Nurse Association (VNA) of Somerset Hills is proud ... and unique items from across the nation, this holiday-themed event will raise funds and ... the VNA. The boutique will be open Saturday, November 4 (10:00 a.m. – ...
(Date:10/13/2017)... ... October 13, 2017 , ... Yisrayl Hawkins, Pastor and Overseer at The House ... most popular and least understood books in the Holy Scriptures, Revelation. The Book of ... baffled scholars for centuries. Many have tossed it off as mere rubbish, but Yisrayl ...
(Date:10/13/2017)... ... ... Journey: From the Mountains to the Mission Field”: the story of a missionary couple ... From the Mountains to the Mission Field” is the creation of published author, Carole ... and currently teaches a class of ladies at her church, which she has taught ...
(Date:10/12/2017)... ... October 12, 2017 , ... ... sleep apnea using cutting-edge Oventus O2Vent technology. As many as 18 ... characterized by frequent cessation in breathing. Oral appliances can offer significant relief to ...
(Date:10/12/2017)... ... October 12, 2017 , ... IsoComforter, Inc. ( ... today the introduction of an innovative new design of the shoulder pad. The ... get maximum comfort while controlling your pain while using cold therapy. By utilizing ice ...
Breaking Medicine News(10 mins):
(Date:10/10/2017)... 10, 2017   West Pharmaceutical Services, Inc. ... injectable drug administration, today shared the results of a ... improving the intradermal administration of polio vaccines. The study ... in May 2017 by Dr. Ondrej Mach , ... Health Organization (WHO), and recently published in the journal ...
(Date:10/4/2017)... Mass. , Oct. 4, 2017  According to the Centers for ... the end of October . PhysicianOne Urgent Care is helping communities across ... Westchester, NY , by offering no-cost* flu shots through the ... as mandated by certain health insurance regulations. ... The best time to get a flu shot is by the ...
(Date:10/2/2017)... 2017  AllianceRx Walgreens Prime, the combined central specialty ... pharmacy benefit manager Prime Therapeutics LLC (Prime), today officially ... the unveiling of new signage at its headquarters in ... at a few other company-owned facilities across the country. ... some of whom will begin to see the AllianceRx ...
Breaking Medicine Technology: