Navigation Links
Stress wrecks intestinal bacteria, could keep immune system on idle
Date:4/11/2011

COLUMBUS, Ohio Stress not only sends the human immune system into overdrive it can also wreak havoc on the trillions of bacteria that work and thrive inside our digestive system.

New research suggests that this may be important because those bacteria play a significant role in triggering the innate immune system to stay slightly active, and thereby prepared to quickly spring into action in the face of an infection.

But exactly how stress makes these changes in these bacteria still isn't quite clear, researchers say.

"Since graduate school, I've been interested in how stress affects the bacteria naturally in our bodies,' explained Michael Bailey, an assistant professor of dentistry and member of the Institute for Behavioral Medicine Research at Ohio State University.

"Even though we've known that stress changes these bacteria, we didn't really understand what that meant or if there was any sort of biological function associated with effects on these bacteria."

The new study appears in the current issue of the journal Brain, Behavior and Immunity.

The human digestive tract is a universe filled with microbes. There are probably 100 trillion bacteria in the average human, 90 percent of which live mainly in the intestine. They easily outnumber human cells 10-to-one in each person.

Bailey and colleagues turned to mice to better understand the roles that bacteria play in immune balance. They ran a series of experiments using a common stressor for these animals. For two hours daily for six days, an aggressive mouse was placed in a cage of a group of more docile mice.

At the end of the string of experiments, blood samples were taken from both stressed animals and matched mice from a control group, along with samples of material from inside each animal's intestine. The blood samples were analyzed to detect the levels of two biomarkers used to gauge stress a cytokine called interleukin-6 (IL
'/>"/>

Contact: Michael Bailey
Michael.bailey@osumc.edu
614-293-4277
Ohio State University
Source:Eurekalert

Page: 1 2

Related biology news :

1. Conservationists develop coral stress test to identify reefs of hope in climate change era
2. Parenting stress affects new mothers’ postpartum lifestyle
3. Green genes in yeast may boost biofuel production by increasing stress tolerance
4. Drug prevents post-traumatic stress syndrome
5. Social stress leads to atherosclerosis
6. Stress takes its toll in Parkinsons disease
7. Plants and animals under stress may provide the key to better stock market predictions
8. Childhood adversity may lead to unhealthy stress response in adult life
9. Walnuts, walnut oil, improve reaction to stress
10. John P. Holdren addresses climate change, stressing need for international cooperation
11. Training the trainers: How to minimize stress when horses are first ridden
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:7/31/2014)... NXT-ID, Inc., (NXTD: OTCQB) a biometric authentication company ... and consumers wanting to learn more about its  ... on-air today, July 31 st . ... featured in a segment of NewsWatch, a weekly ... the History Channel, FYI Network today. ...
(Date:7/30/2014)... by the Red Queen in Lewis Carroll,s Through ... Illinois and National University of Singapore improved a ... evolve over decades to millions of years. , ... for competition, incorporates the "Red Queen Effect," an ... the 1970s, which suggests that organisms must constantly ...
(Date:7/30/2014)... the Entomological Society of America (ESA) has elected ten ... as a Fellow acknowledges outstanding contributions to entomology in ... or administration. The following Fellows will be recognized during ... will be held November 16-19, 2014 in Portland, Oregon. ... professor with the Department of Plant, Soil and Entomological ...
Breaking Biology News(10 mins):NXT-ID's Next Generation Biometric Smart Wallet Featured on NewsWatch Consumer Show on the History Channel and FYI Network Today, July 31st 2NXT-ID's Next Generation Biometric Smart Wallet Featured on NewsWatch Consumer Show on the History Channel and FYI Network Today, July 31st 3Classic Lewis Carroll character inspires new ecological model 2Classic Lewis Carroll character inspires new ecological model 3Entomological Society of America recognizes 2014 fellows 2Entomological Society of America recognizes 2014 fellows 3Entomological Society of America recognizes 2014 fellows 4Entomological Society of America recognizes 2014 fellows 5Entomological Society of America recognizes 2014 fellows 6Entomological Society of America recognizes 2014 fellows 7Entomological Society of America recognizes 2014 fellows 8Entomological Society of America recognizes 2014 fellows 9Entomological Society of America recognizes 2014 fellows 10Entomological Society of America recognizes 2014 fellows 11Entomological Society of America recognizes 2014 fellows 12Entomological Society of America recognizes 2014 fellows 13Entomological Society of America recognizes 2014 fellows 14Entomological Society of America recognizes 2014 fellows 15Entomological Society of America recognizes 2014 fellows 16Entomological Society of America recognizes 2014 fellows 17
... Illegal poaching, fuelled by the demand for alternative ,medicines, ... response unprecedented levels of funding are being invested in ... confiscated ivory, serve to publicize the problem. However, ... measures are repeating the mistakes of the ,War on ...
... seek is what you find To understand how ... to focus on one of the simplest food webs on ... by their specialist enemies, parasitic wasps and flies developing on ... "What we found in this system was mind-boggling", explains ...
... -- People interested in healthy foods are invited to ... hear the latest findings on connections between fruit and ... toward consumers, will include presentations by researchers, producers, allied ... will mark the 20th anniversary of Texas A&M University,s ...
Cached Biology News:DNA barcodes change our view on how nature is structured 2DNA barcodes change our view on how nature is structured 3US food industry leaders to convene for health talks in Texas 2US food industry leaders to convene for health talks in Texas 3
(Date:7/31/2014)... July 31, 2014 Nearly 20,000 medical professionals ... Annual Meeting & Clinical Lab Expo in ... never-before-seen breakthroughs in diagnostic research and technology that will ... As of Wednesday, July 30, more than ... Meeting & Clinical Lab Expo, with more than 10,000 ...
(Date:7/31/2014)... ability to see through organs and even the entire ... as fine-grained cellular structures has been a long-time dream ... Press July 31st in the journal Cell ... methods for making opaque organs, bodies, and human tissue ... intact. The protocols could pave the way for a ...
(Date:7/31/2014)... Colo. , July 31, 2014 ... awardee today with $25,000 to fund a translational ... inception in 2011, the gift was presented at ... Annual Meeting in Colorado Springs, ... specialize in neurointerventional approaches to neurovascular conditions, SNIS ...
(Date:7/31/2014)... 31, 2014 Graphite Metallizing Corporation announces ... oven carts. These bearings are uniquely suited to prevent ... bearings because of the high temperatures . , ... from the design engineers at Graphite Metallizing to overcome ... During their manufacturing operation, pans containing blocks of powder ...
Breaking Biology Technology:Research on Digital Health, Alzheimer's, Ebola Draws Nearly 20,000 Attendees to 2014 AACC Annual Meeting & Clinical Lab Expo 2Research on Digital Health, Alzheimer's, Ebola Draws Nearly 20,000 Attendees to 2014 AACC Annual Meeting & Clinical Lab Expo 3See-through organs and bodies will accelerate biomedical discoveries 2SNIS Foundation Bestows First Grant Award For Cutting-Edge NeuroInterventional Research 2SNIS Foundation Bestows First Grant Award For Cutting-Edge NeuroInterventional Research 3Graphite Metallizing Announces Bearings for High Temperature Oven Applications 2Graphite Metallizing Announces Bearings for High Temperature Oven Applications 3
... Sales Up 15% - Non-GAAP Operating Earnings Up 27%, ... - Non-GAAP Diluted EPS Up 29%, GAAP ... Varian, Inc.,(NasdaqGS: VARI) today reported fourth fiscal quarter 2008 ... of $245.6,million in the fourth quarter of fiscal year 2007, ...
... Net Revenues, $0.10 Net Income Per Share, SAN ... VNUS ), a leading provider of medical devices,for ... its,financial results for the third quarter ended September 30, ... 2008 increased 32% to $23.1,million compared with $17.5 million ...
... the Nine Month Period Ended September ... ... announced today results for the nine-month period ended,September 30, 2008. During this ... (USD 128 million) for the nine,month period ended September 30, 2008. In ...
Cached Biology Technology:Varian, Inc. Reports Strong Fourth Quarter 2008 Results 2Varian, Inc. Reports Strong Fourth Quarter 2008 Results 3Varian, Inc. Reports Strong Fourth Quarter 2008 Results 4Varian, Inc. Reports Strong Fourth Quarter 2008 Results 5Varian, Inc. Reports Strong Fourth Quarter 2008 Results 6Varian, Inc. Reports Strong Fourth Quarter 2008 Results 7Varian, Inc. Reports Strong Fourth Quarter 2008 Results 8Varian, Inc. Reports Strong Fourth Quarter 2008 Results 9Varian, Inc. Reports Strong Fourth Quarter 2008 Results 10Varian, Inc. Reports Strong Fourth Quarter 2008 Results 11Varian, Inc. Reports Strong Fourth Quarter 2008 Results 12Varian, Inc. Reports Strong Fourth Quarter 2008 Results 13Varian, Inc. Reports Strong Fourth Quarter 2008 Results 14Varian, Inc. Reports Strong Fourth Quarter 2008 Results 15Varian, Inc. Reports Strong Fourth Quarter 2008 Results 16Varian, Inc. Reports Strong Fourth Quarter 2008 Results 17Varian, Inc. Reports Strong Fourth Quarter 2008 Results 18Varian, Inc. Reports Strong Fourth Quarter 2008 Results 19Varian, Inc. Reports Strong Fourth Quarter 2008 Results 20Varian, Inc. Reports Strong Fourth Quarter 2008 Results 21Varian, Inc. Reports Strong Fourth Quarter 2008 Results 22Varian, Inc. Reports Strong Fourth Quarter 2008 Results 23Varian, Inc. Reports Strong Fourth Quarter 2008 Results 24Varian, Inc. Reports Strong Fourth Quarter 2008 Results 25Varian, Inc. Reports Strong Fourth Quarter 2008 Results 26Varian, Inc. Reports Strong Fourth Quarter 2008 Results 27VNUS Medical Technologies Reports Third-Quarter 2008 Results: 25% Growth in Net Product Revenues and 29% Growth in Unit Sales Over Third Quarter 2007 2VNUS Medical Technologies Reports Third-Quarter 2008 Results: 25% Growth in Net Product Revenues and 29% Growth in Unit Sales Over Third Quarter 2007 3VNUS Medical Technologies Reports Third-Quarter 2008 Results: 25% Growth in Net Product Revenues and 29% Growth in Unit Sales Over Third Quarter 2007 4VNUS Medical Technologies Reports Third-Quarter 2008 Results: 25% Growth in Net Product Revenues and 29% Growth in Unit Sales Over Third Quarter 2007 5VNUS Medical Technologies Reports Third-Quarter 2008 Results: 25% Growth in Net Product Revenues and 29% Growth in Unit Sales Over Third Quarter 2007 6VNUS Medical Technologies Reports Third-Quarter 2008 Results: 25% Growth in Net Product Revenues and 29% Growth in Unit Sales Over Third Quarter 2007 7VNUS Medical Technologies Reports Third-Quarter 2008 Results: 25% Growth in Net Product Revenues and 29% Growth in Unit Sales Over Third Quarter 2007 8VNUS Medical Technologies Reports Third-Quarter 2008 Results: 25% Growth in Net Product Revenues and 29% Growth in Unit Sales Over Third Quarter 2007 9VNUS Medical Technologies Reports Third-Quarter 2008 Results: 25% Growth in Net Product Revenues and 29% Growth in Unit Sales Over Third Quarter 2007 10
... a wide variety of purity levels, scales and ... Purity: IG(>50%), >70%, >80% and >95% ... Length: Up to 120 residues ... acids, MAPs, KLH/BSA conjugation, and much more. ...
... H-Ala-Cys-Asp-Thr-Ala-Thr-Cys-Val-Thr-His-Arg-Leu-Ala-Gly-Leu-Leu-Ser-Arg-Ser-Gly-Gly-Val-Val-Lys-Asn-Asn-Phe-Val-Pro-Thr-Asn-Val-Gly-Ser-Lys-Ala-Phe-NH 2 (Disulfide ... peptide and 1 ... I-labelled peptide, please see ... ([ 1 2 ...
... ProteinPilot Software enables you to identify ... you can distinguish protein isoforms, protein ... can also visualize peptide-protein associations and ... for protein identification and relative protein ...
... offer all of the features of a ... with Koehler illumination, a centerable condenser and ... is the workhorse of Motic's range of ... need for re-focusing following a change in ...
Biology Products: