Irritable Bowel Syndrome Clinical Trial
Official title:
Is the Expression of the GLUT5 Specific Fructose Transport Protein Abnormal in Patients With Fructose Intolerance?
In this study we will investigate the expression of the fructose transport protein GLUT5 in the small intestine in patients with functional GI disoders and fructose intolerance compared to matched healthy controls.
Intolerances to food are a major complaint of patients with functional gastrointestinal disorders (FGID) and even commoner in patients with inflammatory bowel disorders (IBD) (Barrett JS et al. Aliment Pharmacol Therap 2009;30:165-174). The most common forms of food intolerance are FODMAP (fermentable oligo-, di- and monosaccharide and polyol) -related, of which fructose and lactose are the best known. The prevalence of lactose and fructose intolerance in IBS patients is between 50 and 70% (Wilder-Smith CH et al. Gastroenterology 2009;136 (Suppl. 1): A324). Recent high quality studies have shown that the reduction of ingested FODMAP can lead to significant and long-term symptom improvement in patients shown to be intolerant by breath-testing. While the pathophysiology behind lactose intolerance is the reduction in small intestinal lactase availability, the mechanism in fructose intolerance and its relationship to malabsorption are unknown. One possible and so far uninvestigated mechanism is a reduction in the expression or activity of the specific fructose transporter, GLUT5, which is mainly responsible for luminal absorption of fructose. GLUT5 is mainly found in the small intestine, as well as various extra-intestinal organs. The clinical relevance of GLUT5 expression for food intolerances in humans has not been reported, but in a mouse model deletion of GLUT5 led to decreased absorption of dietary fructose and typical signs of malabsorption (Barone S et al. J Biol Chem 2009;284:5056-5066). The control of GLUT5 is dynamic and considerable upregulation together with increased absorption of fructose is evident in diabetes mellitus, while expression is decreased by inflammation and lipopolysaccharide endotoxin, an integral component of the outer membrane of all gram-negative bacteria, through the action of pro-inflammatory cytokines, such as TFN-a. ;
Status | Clinical Trial | Phase | |
---|---|---|---|
Completed |
NCT03720314 -
Microbiota Profiling in IBS
|
||
Recruiting |
NCT06166563 -
Exercise, Irritable Bowel Syndrome and Fibromyalgia
|
N/A | |
Completed |
NCT05213910 -
Study of a Management Strategy of Functional Bowel Disordes Related to Irritable Bowel Syndrome (IBS) With a Mixture of 8 Microbiotic Strains
|
N/A | |
Recruiting |
NCT05985018 -
Traditional Dietary Advice Vs. Mediterranean Diet in IBS
|
N/A | |
Completed |
NCT04486469 -
Efficacy of Physiotherapy Techniques on Irritable Bowel Syndrome (IBS). Pilot Study.
|
N/A | |
Completed |
NCT06407609 -
Positive Outcomes of the Supplementation With Lecithin-based Delivery Form of Curcuma Longa and of Boswellia Serrata in IBS
|
N/A | |
Completed |
NCT04656730 -
Effect of STW5 (Iberogast ®) and STW5-II (Iberogast N®) on Transit and Tolerance of Intestinal Gas
|
Phase 4 | |
Completed |
NCT04145856 -
Combination of Alverine-simeticone and i3.1 Probiotic in IBS-D and IBS-M in Mexico
|
Phase 4 | |
Recruiting |
NCT04138225 -
The Ecological Role of Yeasts in the Human Gut
|
||
Active, not recruiting |
NCT03586622 -
One Year Home Monitoring and Treatment of IBS Patients
|
N/A | |
Completed |
NCT05207618 -
Utility of the Administration of Chesnut and Quebracho Extract for Irritable Bowel Syndrome Diarrhea Predominant
|
N/A | |
Not yet recruiting |
NCT06369753 -
Visible Abdominal Distension
|
N/A | |
Not yet recruiting |
NCT05157867 -
In Vivo Effects of Amylase Trypsin Inhibitors
|
N/A | |
Not yet recruiting |
NCT05100719 -
The Role of Irritable Bowel Syndrome in Lactose Intolerance (LION)
|
N/A | |
Recruiting |
NCT05001997 -
Effects of Lactose-free Dairy Products on Athletes With Irritable Bowel Syndrome
|
N/A | |
Recruiting |
NCT02953171 -
Probiotics in the Treatment of Irritable Bowel Syndrome
|
N/A | |
Completed |
NCT03266068 -
Epidemiology and Pathophysiology of Post-Infectious Functional GI Disorders
|
||
Completed |
NCT02977975 -
Lacto-fermented Sauerkraut in the Treatment of Irritable Bowel Syndrome
|
N/A | |
Completed |
NCT02980406 -
The Role of FODMAPs in Upper GI Effects, Colonic Motor Activity and Gut-brain Signaling at the Behavioral Level
|
N/A | |
Completed |
NCT03318614 -
Bifidobacterium Infantis M-63 Improves Mental Health in Irritable Bowel Syndrome Developed After a Major Flood Disaster
|
Phase 2/Phase 3 |