scholarly journals The role of experimental models in developing new treatments for irritable bowel syndrome

2011 ◽  
Vol 5 (1) ◽  
pp. 43-57 ◽  
Author(s):  
Daniel P Holschneider ◽  
Sylvie Bradesi ◽  
Emeran A Mayer
2001 ◽  
Vol 15 (suppl b) ◽  
pp. 14B-16B ◽  
Author(s):  
Stephen M Collins

There is considerable interest in the mechanisms that underlie symptom generation in irritable bowel syndrome (IBS) and particularly those mechanisms peripheral to higher centres in the nervous system. While the central nervous system is important in IBS, it is restricted largely to the role of behaviour in stress perception and symptom reporting. The gut and the autonomic nervous system are principal areas of research in identifying mechanisms underlying symptom generation and in the identification of new targets for drug development. While motility changes occur in IBS, they are neither specific nor predictable, and this is one reason why drugs aimed at influencing motility patterns have enjoyed limited success to date. This success has prompted interest in sensory physiology to explain pain and other discomforts expressed by patients with IBS. Patients with IBS exhibit intolerance to rectal distension and other manoeuvres of the gut, while exhibiting normal or raised thresholds for somatic pain. The mechanisms underlying the development of hyperalgesia or allodynia in the gut remain to be determined. In other systems and experimental models, low grade inflammation is a predicable inducer of these states, and recent evidence suggests that a subpopulation of patients with IBS develop chronic symptoms after acute gastroenteritis. This and other inflammatory stimuli may induce a hyperalgesic state and alter motor function in patients with IBS. Substances that mediate these changes are not fully understood, but there is growing recognition of the role of serotonin as a sensitizing agent.


Author(s):  
Maria Giuliana Vannucchi ◽  
Stefano Evangelista

Irritable bowel syndrome (IBS) is one of the most common gastrointestinal diseases in humans. It is characterized by visceral pain and/or discomfort, hypersensitivity and abnormal motor responses along with change in gut habits. Although the etio-pathogenesis of IBS is only partially understood, a main role has been attributed to psychosocial stress of different origin. Animals models such as neonatal maternal separation, water avoidance stress and wrap restraint stress have been developed as psychosocial stressors in the attempt to reproduce the IBS symptomatology and identify the cellular mechanisms responsible for the disease. The study of these models has led to the production of drugs potentially useful for IBS treatment. This review intends to give an overview on the results obtained with the animal models; to emphasize the role of the enteric nervous system in IBS appearance and evolution and as a possible target of drug therapies.


2020 ◽  
Vol 0 (3) ◽  
pp. 29-36
Author(s):  
I. A. Derkach ◽  
A. E. Dorofeyev ◽  
M. M. Rudenko ◽  
G. A. Dorofeyeva ◽  
Yu. Z. Dynia

2016 ◽  
Vol 16 (18) ◽  
pp. 1462-1469 ◽  
Author(s):  
Agata Jarmu| ◽  
Marta Zieli|ska ◽  
Karolina Le| ◽  
Martyna Banaszek ◽  
Martin Storr ◽  
...  

2018 ◽  
Vol 76 (2) ◽  
pp. 111-120 ◽  
Author(s):  
Nicola Principi ◽  
Rita Cozzali ◽  
Edoardo Farinelli ◽  
Andrea Brusaferro ◽  
Susanna Esposito

RSC Advances ◽  
2016 ◽  
Vol 6 (69) ◽  
pp. 64208-64214 ◽  
Author(s):  
Shenglan Yang ◽  
Danfang Deng ◽  
Yingying Luo ◽  
Yanran Wu ◽  
Rui Zhu ◽  
...  

In this study, the alleviating role of hydrogen sulfide (H2S) was investigated in a Post-Infectious Irritable Bowel Syndrome (PI-IBS) murine model and Caco-2 cells.


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