Navigation Links
Circadian rhythms control body's response to intestinal infections, UCI-led study finds
Date:5/31/2013

Irvine, Calif., May 31, 2013 Circadian rhythms can boost the body's ability to fight intestinal bacterial infections, UC Irvine researchers have found.

This suggests that targeted treatments may be particularly effective for pathogens such as salmonella that prompt a strong immune system response governed by circadian genes. It also helps explain why disruptions in the regular day-night pattern as experienced by, say, night-shift workers or frequent fliers may raise susceptibility to infectious diseases.

UC Irvine's Paolo Sassone-Corsi, one of the world's leading researchers on circadian rhythm genetics, and microbiologist Manuela Raffatellu led the study, which appears this week in the early online edition of Proceedings of the National Academy of Sciences. Marina Bellet, a postdoctoral researcher from Italy's University of Perugia also played a key role in the experiments.

"Although many immune responses are known to follow daily oscillations, the role of the circadian clock in the immune response to acute infections has not been understood," said Sassone-Corsi, the Donald Bren Professor of Biological Chemistry. "What we're learning is that the intrinsic power of the body clock can help fight infections."

Circadian rhythms of 24 hours govern fundamental physiological functions in almost all organisms. The circadian clock is an intrinsic time-tracking system in the human body that anticipates environmental changes and adapts to the appropriate time of day. Disruption of these normal rhythms can profoundly influence people's health.

Up to 15 percent of human genes are regulated by the day-night pattern of circadian rhythms, including those that respond to intestinal infections.

In tests on mice infected with salmonella, the researchers noted that circadian-controlled genes govern the immune response to the invading pathogen, leading to day-night differences in infection potential an
'/>"/>

Contact: Tom Vasich
tmvasich@uci.edu
949-824-6455
University of California - Irvine
Source:Eurekalert

Page: 1 2

Related biology news :

1. Circadian rhythms can be modified for potential treatment of disorders
2. Metabolism in the brain fluctuates with circadian rhythm
3. Zebrafish study explains why the circadian rhythm affects your health
4. Scientists discover molecular link between circadian clock disturbances and inflammatory diseases
5. Brandeis scientists win prestigious prize for circadian rhythms research
6. Circadian rhythms have profound influence on metabolic output, UCI study reveals
7. Symbiotic bacteria program daily rhythms in squid using light and chemicals
8. Rhythms in the brain help give a sense of location, study shows
9. Musical duets lock brains as well as rhythms
10. Single-cell transfection tool enables added control for biological studies
11. New formula invented for microscope viewing, substitutes for federally controlled drug
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:10/29/2014)... a ceremony held in New York City on September ... the American Cancer Society Professor of Genome Sciences and ... 2008 Honorary Doctor of Philosophy of Tel Aviv University, ... Medical Science. , In addition to her honorary degree ... at the TAU School of Medicine, and for the ...
(Date:10/29/2014)... those referred to as ,facultative, form part—together with other ... differentiates these cells from the others. However, they have ... to become stem cells again. This phenomenon is something ... cells that stimulate tissue growth, thus allowing the regeneration ... Knowledge of the underlying mechanism that allows these ...
(Date:10/29/2014)... in the living world compete with members of ... how much they invest into their competitive ability. ... get access to high-quality resources, while others seem ... the lower-quality resources that are left over for ... and human societies seems to fluctuate considerably over ...
Breaking Biology News(10 mins):Geneticist and humanitarian: Prof. Mary-Claire King receives Lasker Award 2A mechanism that allows a differentiated cell to reactivate as a stem cell revealed 2Evolution of competitiveness 2Evolution of competitiveness 3
... other groups have created a map of the world,s ... temperatures, ultra-violet radiation, weather systems, sedimentation, as well as ... The study, say the authors, will help to ... by identifying reef systems where biodiversity is high and ...
... Viruses fill the ocean and have a significant effect ... professor of biology at UC Santa Barbara and his ... of Ecology, Evolution, and Marine Biology, is the senior ... week by the International Society for Microbial Ecology ...
... published online this week in Nature Genetics , ... with universities in China and Denmark reports the first ... type of bladder cancer. Recognizing the genetic ... healthy neighbors may allow early genetic screenings for cancer ...
Cached Biology News:Worldwide map identifies important coral reefs exposed to stress 2Worldwide map identifies important coral reefs exposed to stress 3Decade-long study reveals recurring patterns of viruses in the open ocean 2Decade-long study reveals recurring patterns of viruses in the open ocean 3University of Colorado Cancer Center genetically sequences most common bladder cancer 2
(Date:10/30/2014)... Whitehouse Laboratories has formally announced a ... and Package Test Capacity. Responding to growing demands from ... increase in environmental chamber storage space that will enable ... samples to be securely held on site at Whitehouse ... has already taken place with the recent completion of ...
(Date:10/30/2014)... CARLSBAD, Calif. , Oct. 30, 2014 Isis ... antisense therapeutics, today announced that management will present a company ... 2014 at 8:30 a.m. ET in Boston, MA. ... will be available on the "Investors & Media" section of ... available on the Isis website within 48 hours and will ...
(Date:10/30/2014)... the key challenges in the development of quantum technologies ... In a paper published today (28 October) in ... how to make a new type of flexibly designed ... as high-precision sensors and specialised superfast computers, often depend ... methods for trapping these tiny particles are hugely problematic ...
(Date:10/27/2014)... (PRWEB) October 27, 2014 The ... by Type (High & Medium), Sub-type (Primary & ... Processing, Infrastructure & Transportation & Power Generation) - ... the GIS market with analysis and forecasting of ... Market Data Tables with 52 Figures spread through ...
Breaking Biology Technology:Whitehouse Labs Announces Major Capital Investment in Stability and Storage Testing Capacity 2Whitehouse Labs Announces Major Capital Investment in Stability and Storage Testing Capacity 3Isis Pharmaceuticals to Present at the Nomura Biotechnology Conference 2Gas Insulated Switchgear Market worth $21,951.9 Million by 2019 - New Report by MarketsandMarkets 2Gas Insulated Switchgear Market worth $21,951.9 Million by 2019 - New Report by MarketsandMarkets 3Gas Insulated Switchgear Market worth $21,951.9 Million by 2019 - New Report by MarketsandMarkets 4
... Tengion, Inc. (Nasdaq: TNGN ), a leader in ... and live audio webcast on Friday, March 25, 2011 at ... its fourth quarter 2010 financial results.   To ... (international) and reference access code 55045101. This ...
... N.J., March 18, 2011 Today, the Access Group--a ... structure; the formation of 2 business entities, Promidian and ... senior executive team leaders. The Access ... health care and life sciences industries to provide full-service ...
... 17, 2011 Quest Diagnostics Incorporated (NYSE: ... announced that its ColoVantage test has been approved by ... of patients in the state. It is believed to ... a venal blood specimen to be approved by the ...
Cached Biology Technology:Tengion To Host Conference Call To Provide a Business Update and Report Fourth Quarter 2010 Financial Results on March 25, 2011 2Introducing the Access Group and Its New Business Entities 2Introducing the Access Group and Its New Business Entities 3Introducing the Access Group and Its New Business Entities 4Introducing the Access Group and Its New Business Entities 5Introducing the Access Group and Its New Business Entities 6New York State Approves the Quest Diagnostics ColoVantage™ Colorectal Cancer Blood Test 2New York State Approves the Quest Diagnostics ColoVantage™ Colorectal Cancer Blood Test 3
... The DNA Engine Dyad instrument is the ... Featuring MJ's world-class thermal performance, the ... display, as well as point-and-click navigation via ... Dyad can be easily and economically expanded ...
... Tetrad 2 thermal cycler is a completely ... Tetrad chassis, and it accepts the full ... delivers the same precision in thermal performance ... Tetrad thermal cyclers, allowing easy transport of ...
ID clarifier: platform...
... Tetrad 2 thermal cycler accommodates a ... heat-pump assemblies), which hold different types ... computer drives an advanced graphical interface ... lid temperatures. Peltier heat pumps, built ...
Biology Products: