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:6/24/2016)... ... June 24, 2016 , ... Marcy was in a crisis. Her son James, eight, ... at his family verbally and physically. , “When something upset him, he couldn’t control his ... it. He would throw rocks at my other children and say he was going to ...
(Date:6/24/2016)... ... ... of Topricin and MyPainAway Pain Relief Products, join The ‘Business for a Fair Minimum Wage’ ... 2020 and then adjusting it yearly to increase at the same rate as the median ... floor does not erode again, and make future increases more predictable. , The company is ...
(Date:6/24/2016)... ... June 24, 2016 , ... Strategic ... Frederick area economy by obtaining investment capital for emerging technology companies. SCP ... that have already resulted in more than a million dollars of capital investment ...
(Date:6/24/2016)... ... June 24, 2016 , ... Finally, a bruise cream ... procedures, dermaka cream can be incorporated into the post-surgical treatment plans of a variety ... , dermaka cream is very effective for bruising and causes a rapid resolution ...
(Date:6/24/2016)... ... June 24, 2016 , ... Dr. Seema Daulat, a native Texan ... the South Lamar location as of July 13, 2016. , Dr. Daulat earned her ... medical student, she regularly volunteered at the Agape Clinic serving Dallas’ underprivileged community. , ...
Breaking Medicine News(10 mins):
(Date:6/24/2016)... FRANCISCO, Calif. , June 24, 2016 /PRNewswire/ ... ), a biopharmaceutical company developing novel therapeutics for ... unmet needs, today announced the closing of its ... of common stock, at the public offering price ... in the offering were offered by GBT. GBT ...
(Date:6/24/2016)... , June 24, 2016 The Academy ... of recommendations that would allow biopharmaceutical companies ... with entities that make formulary and coverage decisions, a ... "value" of new medicines. The recommendations address ... not appear on the drug label, a prohibition that ...
(Date:6/24/2016)... , June 24, 2016 According ... by Type (Standard Pen Needles, Safety Pen Needles), Needle ... GLP-1, Growth Hormone), Mode of Purchase (Retail, Non-Retail) - ... This report studies the market for the forecast period ... reach USD 2.81 Billion by 2021 from USD 1.65 ...
Breaking Medicine Technology: