Forum für Wissenschaft, Industrie und Wirtschaft

Hauptsponsoren:     3M 
Datenbankrecherche:

 

IBS and bloating: When the gut microbiota gets out of balance

10.03.2014

Irritable bowel syndrome (IBS) belongs to the most widespread diseases in Western countries, causing up to sixty per cent of the workload of gastrointestinal physicians.

One of the most frequent symptoms of IBS is bloating, which reduces quality of life considerably as patients perceive it as particularly bothersome. For quite a long time, IBS was believed to be a primarily psychological condition.

"Contrary to this view, recent findings suggest that IBS is linked to clearly detectable gut microbiota alterations. Additionally, bloating can be related to specific kinds of diet, thus opening up promising paths towards an efficient disease management," says Professor Giovanni Barbara (University of Bologna, Italy).

This was one of the topics presented at the Gut Microbiota for Health World Summit in Miami, FL, USA. On March 8-9, 2014, internationally leading experts discussed the latest advances in gut microbiota research and its impact on health.

... mehr zu:
»AGA »Exchange »Health »IBS »function »healthy »pain

IBS is one of the most common gastrointestinal disorders, causing several symptoms, which include abdominal pain, bowel movements that cause discomfort, and — in nearly all patients — bloating. IBS affects up to 20 percent of the population in Western countries. This condition represents up to 10 percent of the workload of family physicians and up to 60 per cent of that of gastroenterology practitioners. Within the range of IBS troubles, it is bloating that bothers patients most.

A microbiota-based condition

For quite a long time, not only bloating, but IBS in general was frequently perceived as a mainly psychological condition, mostly affecting young, predominantly female and anxious patients with no detectable abnormalities in their bowels. Consequently, the disease burden was often attributed to an imaginary disorder, and the treatment was far from satisfactory.

"Thanks to new diagnostic insights and a rapidly growing knowledge about the role and function of the microbial communities living inside our guts, our view on IBS and its causes has changed considerably," says Prof. Barbara, President of the European Society of Neurogastroenterology and Motility (ESNM). According to him, there is a lot of evidence showing that IBS is associated with an imbalanced composition of the gut microbiota. This means that the system of checks and balances between beneficial and potentially harmful bacteria, which characterizes a healthy gut microbiota, is disturbed in IBS patients.

"Probably the best example of this interaction is the discovery that IBS symptoms develop in up to 10 percent of previously healthy subjects after a single episode of gastroenteritis caused by an infection through bacterial pathogens like Salmonella, Shighella or Campylobacter, which can severely disrupt the microbiota balance," says Prof. Barbara. An additional problem results from the fact that not only infections, but also the antibiotics that are used as a remedy, may increase the risk for IBS, as they, too, can alter the gut microbiota in a negative way.

Nutrition is key

Another important factor is nutrition. Food that is rich in carbohydrates, particularly fiber, tends to produce larger amounts of gas than a diet without these ingredients. In some individuals, this might lead to repeated bloating and flatulence. The potentially negative impact of this kind of nutrition applies in particular to individuals who already suffer from IBS. Recent studies show that such a "flatulogenic" diet (for example, bread, cereals and pastries made of whole wheat, and beans, soy beans, corn, peas, Brussels' sprouts, cauliflower, broccoli, cabbage, celery, onions, leek, garlic, artichokes, figs, peaches, grapes and prunes) induces profound changes in the microbiota of IBS patients, thus prolonging and increasing the symptoms. However, at the same time, the gut microbiota of healthy subjects remained stable and unaffected by this kind of diet.1

"On the other hand, we now know for sure that diets containing low fiber content improve these symptoms significantly. Recent research results suggest that, compared to a normal Western diet, a diet low in so-called FODMAPs (fermentable oligosaccharides, disaccharides, monosaccharides and polyols) reduces symptoms of IBS, including bloating, pain and passage of wind," says Prof. Barbara.

Another interesting observation Prof. Barbara points to is that those IBS patients who have several clear-cut gut symptoms have also more profound changes in their gut microbiota, as compared to other patients whose bowel physiology is less disturbed, but instead combined with mood disorders. This suggests that the troubles of the second group are more socially grounded and mood-related, whereas the condition of the patients belonging to the first group is predominantly physiologically based — IBS proper, so to speak.

What further developments can doctors and patients expect? "It is amazing to see how quickly gut microbiota research has gained center stage within gastroenterology in the course of the past few years," says Prof. Barbara. "This is due to its crucial role not only for IBS, but for gastrointestinal health in general. In order to further improve diagnosis and treatment, we have to identify more of the various functions of the intestinal bacteria. With regard to clinical applications, bacterial functions are even more important than their types."

###

The microbial communities that reside in the human gut and their impact on human health and disease are one of the most exciting new areas of research today. To address the most recent advances in this rapidly developing field, scientists and health-care professionals from all over the world came together at the Gut Microbiota for Health World Summit in Miami, Florida, USA, on March 8-9, 2014. The meeting was hosted by the Gut Microbiota & Health Section of the European Society of Neurogastroenterology and Motility (ESNM) and the American Gastroenterological Association (AGA) Institute, with the support of Danone.

1 Manichanh C, Eck A, Varela E, Roca J, Clemente JC, Gonzalez A, et al. Anal gas evacuation and colonic microbiota in patients with flatulence: effect of diet. Gut. 2013 Jun 13. PubMed PMID: 23766444. Epub 2013/06/15. Eng.

About the Gut Microbiota For Health Experts Exchange website

The http://www.gutmicrobiotaforhealth.com Experts Exchange, provided by the Gut Microbiota & Health Section of ESNM, is an online platform for health-care professionals, scientists, and other people interested in the field. Thanks to being an open, independent and participatory medium, this digital service enables a scientific debate in the field of gut microbiota.

Connected to http://www.gutmicrobiotaforhealth.com, the Twitter account @GMFHx, animated by experts, for experts from the medical and scientific community, actively contributes to the online exchanges about the gut microbiota. Follow @GMFHx on Twitter. You can follow the Twitter coverage of the event using #GMFH2014

About the Gut Microbiota & Health Section of ESNM

ESNM stands for the European Society of Neurogastroenterology and Motility, a member of United European Gastroenterology (UEG). The mission of the ESNM is to defend the interests of all professionals in Europe involved in the study of neurobiology and pathophysiology of gastrointestinal function. The Gut Microbiota & Health Section was set up to increase recognition of the links between the gut microbiota and human health, to spread knowledge and to raise interest in the subject. The Gut Microbiota & Health Section is open to professionals, researchers, and practitioners from all fields related to gut microbiota and health. http://www.esnm.eu/gut_health/gut_micro_health.php?navId=68

About the AGA

The American Gastroenterological Association is the trusted voice of the GI community. Founded in 1897, the AGA has grown to include more than 16,000 members from around the globe who are involved in all aspects of the science, practice and advancement of gastroenterology. The AGA Institute administers the practice, research and educational programmes of the organisation. http://www.gastro.org

About Danone and Gut Microbiota for Health

Danone's conviction is that food plays an essential role in human health namely through the impact that the gut microbiota may have on health. That is why Danone supports the Gut Microbiota for Health World Summit and Experts Exchange web platform with the aim to encourage research and increase knowledge in this promising area, in line with its mission to "bring health through food to as many people as possible". http://www.danone.com

Aimee Frank | EurekAlert!

Weitere Berichte zu: AGA Exchange Health IBS function healthy pain

Weitere Nachrichten aus der Kategorie Medizin Gesundheit:

nachricht Bei Notfällen wie Herzinfarkt und Schlaganfall immer den Notruf 112 wählen: Jede Minute zählt!
22.06.2017 | Deutsche Herzstiftung e.V./Deutsche Stiftung für Herzforschung

nachricht Tropenviren bald auch in Europa? Bayreuther Forscher untersuchen Folgen des Klimawandels
21.06.2017 | Universität Bayreuth

Alle Nachrichten aus der Kategorie: Medizin Gesundheit >>>

Die aktuellsten Pressemeldungen zum Suchbegriff Innovation >>>

Die letzten 5 Focus-News des innovations-reports im Überblick:

Im Focus: Can we see monkeys from space? Emerging technologies to map biodiversity

An international team of scientists has proposed a new multi-disciplinary approach in which an array of new technologies will allow us to map biodiversity and the risks that wildlife is facing at the scale of whole landscapes. The findings are published in Nature Ecology and Evolution. This international research is led by the Kunming Institute of Zoology from China, University of East Anglia, University of Leicester and the Leibniz Institute for Zoo and Wildlife Research.

Using a combination of satellite and ground data, the team proposes that it is now possible to map biodiversity with an accuracy that has not been previously...

Im Focus: Klima-Satellit: Mit robuster Lasertechnik Methan auf der Spur

Hitzewellen in der Arktis, längere Vegetationsperioden in Europa, schwere Überschwemmungen in Westafrika – mit Hilfe des deutsch-französischen Satelliten MERLIN wollen Wissenschaftler ab 2021 die Emissionen des Treibhausgases Methan auf der Erde erforschen. Möglich macht das ein neues robustes Lasersystem des Fraunhofer-Instituts für Lasertechnologie ILT in Aachen, das eine bisher unerreichte Messgenauigkeit erzielt.

Methan entsteht unter anderem bei Fäulnisprozessen. Es ist 25-mal wirksamer als das klimaschädliche Kohlendioxid, kommt in der Erdatmosphäre aber lange nicht...

Im Focus: Climate satellite: Tracking methane with robust laser technology

Heatwaves in the Arctic, longer periods of vegetation in Europe, severe floods in West Africa – starting in 2021, scientists want to explore the emissions of the greenhouse gas methane with the German-French satellite MERLIN. This is made possible by a new robust laser system of the Fraunhofer Institute for Laser Technology ILT in Aachen, which achieves unprecedented measurement accuracy.

Methane is primarily the result of the decomposition of organic matter. The gas has a 25 times greater warming potential than carbon dioxide, but is not as...

Im Focus: How protons move through a fuel cell

Hydrogen is regarded as the energy source of the future: It is produced with solar power and can be used to generate heat and electricity in fuel cells. Empa researchers have now succeeded in decoding the movement of hydrogen ions in crystals – a key step towards more efficient energy conversion in the hydrogen industry of tomorrow.

As charge carriers, electrons and ions play the leading role in electrochemical energy storage devices and converters such as batteries and fuel cells. Proton...

Im Focus: Die Schweiz in Pole-Position in der neuen ESA-Mission

Die Europäische Weltraumagentur ESA gab heute grünes Licht für die industrielle Produktion von PLATO, der grössten europäischen wissenschaftlichen Mission zu Exoplaneten. Partner dieser Mission sind die Universitäten Bern und Genf.

Die Europäische Weltraumagentur ESA lanciert heute PLATO (PLAnetary Transits and Oscillation of stars), die grösste europäische wissenschaftliche Mission zur...

Alle Focus-News des Innovations-reports >>>

Anzeige

Anzeige

IHR
JOB & KARRIERE
SERVICE
im innovations-report
in Kooperation mit academics
Veranstaltungen

Von Batterieforschung bis Optoelektronik

23.06.2017 | Veranstaltungen

10. HDT-Tagung: Elektrische Antriebstechnologie für Hybrid- und Elektrofahrzeuge

22.06.2017 | Veranstaltungen

„Fit für die Industrie 4.0“ – Tagung von Hochschule Darmstadt und Schader-Stiftung am 27. Juni

22.06.2017 | Veranstaltungen

 
VideoLinks
B2B-VideoLinks
Weitere VideoLinks >>>
Aktuelle Beiträge

Der Form eine Funktion verleihen

23.06.2017 | Informationstechnologie

Von Batterieforschung bis Optoelektronik

23.06.2017 | Veranstaltungsnachrichten

Rudolf-Virchow-Preis 2017 – wegweisende Forschung zu einer seltenen Form des Hodgkin-Lymphoms

23.06.2017 | Förderungen Preise