Navigation Links
Study: Probiotics reduce stress-induced intestinal flare-ups
Date:3/14/2013

ANN ARBOR, Mich. For those with irritable bowel syndrome who wonder if stress aggravates their intestinal disorder, a new University of Michigan Health System study shows it's not all in their head.

Researchers revealed that while stress does not cause IBS, it does alter brain-gut interactions and induces the intestinal inflammation that often leads to severe or chronic belly pain, loss of appetite and diarrhea.

Stress has a way of suppressing an important component called an inflammasome which is needed to maintain normal gut microbiota, but probiotics reversed the effect in animal models, according to findings published online ahead of print in Gastroenterology.

"The effect of stress could be protected with probiotics which reversed the inhibition of the inflammasome," says senior study author and gastroenterologist John Y. Kao, M.D., associate professor of internal medicine at the University of Michigan. "This study reveals an important mechanism for explaining why treating IBS patients with probiotics makes sense."

Probiotics are live bacteria that help grow the gut-dwelling "good" bacteria that keep pathogens in check, aid digestion and nutrient absorption and contribute to immune function.

U-M researchers including Chung Owyang, M.D., chief of the U-M Division of Gastroenterology, Gary Huffnagle, Ph.D., professor of pulmonary and critical care, and infectious disease expert Vincent Young, M.D., Ph.D., were able to identify the way stress significantly altered the composition of gut bacteria and the role of probiotics.

Maintaining healthy microbiota requires action by nucleotide-binding oligomerization domain protein-like receptors, pyrin-domain containing (NLRP)-6 inflammasomes. But when stressed, mice produced corticotropin-releasing hormone (CRH) that prevented inflammasomes from doing their job.

Inhibiting inflammosomes alters the composition of the gut, leading to intestinal inflammation. In the study, pretreatment with probiotic therapy reduced inflammation in mice with stress-induced small bowel inflammation.

"Additional clinical study is required to determine the optimal probiotic therapy," says Kao. "Patients can start living healthier lifestyles to improve their gut microbiota such as adding more fruits and vegetables to their diet, and looking for ways to keep stress in check."


'/>"/>

Contact: Shantell M. Kirkendoll
smkirk@umich.edu
734-764-2220
University of Michigan Health System
Source:Eurekalert

Related biology news :

1. Study: Antibiotics are unique assassins
2. International study: Excess dietary salt may drive the development of autoimmune diseases
3. Influenza study: Meet virus new enemy
4. Study: Resveratrol shows promise to protect hearing, cognition
5. Nature Methods study: Using light to control cell clustering
6. Study: Viral reactivation a likely link between stress and heart disease
7. Study: Odd biochemistry yields lethal bacterial protein
8. International study: Where theres smoke or smog, theres climate change
9. UT study: Students who are more physically fit perform better academically
10. New study: Many flame retardants in house dust -- unsafe levels
11. Study: DNA barcoding can ID natural health products
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:3/9/2016)... PALM BEACH GARDENS, Fla. , March 9, ... of identity management authentication and enrollment solutions, today ... proven DigitalPersona ® Altus multi-factor ... enable IT and InfoSec managers to step-up security ... friction.  Washington, DC ...
(Date:3/3/2016)... , March 3, 2016  FlexTech, a SEMI ... categories of Innovation, Research & Development, Leadership in Education, ... This is the 9 th year of the ... of companies and individuals from past years . ... on a pre-described set of criteria, by a panel ...
(Date:3/3/2016)... DE SOTO, Kansas , March 3, ... Plus® to offer Oncimmune,s Early CDT®-Lung, a blood ... detection of lung cancer Early CDT®-Lung test ... individuals. --> Early CDT®-Lung test to its ... --> Oncimmune, a leader in early cancer detection, ...
Breaking Biology News(10 mins):
(Date:5/25/2016)... ... ... Scientists at the University of Athens say they have evidence that the ... research that could lead to one good one. Surviving Mesothelioma has just posted an ... The team evaluated 98 mesothelioma patients who got a second kind of ...
(Date:5/24/2016)... May 24, 2016   MedyMatch Technology Ltd ., the ... intelligence, real-time decision support tools in the emergency room, announced ... 2016 Israeli Advanced Technology Industries (IATI) BioMed Conference. ... 15th National Life Sciences and Technology Week, and ... Intercontinental Hotel in Tel Aviv, Israel . ...
(Date:5/23/2016)... Zimmer Biomet Holdings, Inc. (NYSE and SIX: ZBH), ... Board of Directors has approved the payment of a quarterly ... The cash dividend of $0.24 per share ... stockholders of record as of the close of business on ... approval of the Board of Directors and may be adjusted ...
(Date:5/22/2016)... ... May 22, 2016 , ... Doctors in Rome say micronutrients ... asbestos cancer, malignant mesothelioma. Surviving Mesothelioma has just posted an article on the new ... of Rome’s Department of Clinical Sciences and Translational Medicine evaluated more than 150 studies ...
Breaking Biology Technology: