All Outputs (90)

A randomised crossover trial of tezacaftor-ivacaftor for gut dysfunction in cystic fibrosis with magnetic resonance imaging (MRI) outcomes: a pilot study (2024)
Journal Article

Background People with cystic fibrosis (CF) can experience recurrent chest infections, pancreatic exocrine insufficiency and gastrointestinal symptoms. New cystic fibrosis transmembrane conductance regulator (CFTR) modulator drugs improve lung funct... Read More about A randomised crossover trial of tezacaftor-ivacaftor for gut dysfunction in cystic fibrosis with magnetic resonance imaging (MRI) outcomes: a pilot study.

Mechanisms underlying the laxative effect of lactulose: A randomized placebo‐controlled trial showing increased small bowel water and motility unaltered by the 5‐HT3 receptor antagonist, ondansetron (2024)
Journal Article

Background: Lactulose is a laxative which accelerates transit and softens stool. Our aim was to investigate its mechanism of action and use this model of diarrhea to investigate the anti-diarrheal actions of ondansetron. Methods: A double-blind, ra... Read More about Mechanisms underlying the laxative effect of lactulose: A randomized placebo‐controlled trial showing increased small bowel water and motility unaltered by the 5‐HT3 receptor antagonist, ondansetron.

Colon length in pediatric health and constipation measured using magnetic resonance imaging and three dimensional skeletonization (2024)
Journal Article

Recent magnetic resonance imaging (MRI) studies showed that colonic volumes in children are different between health and functional constipation. The length of the colon has however been rarely measured and principally using unphysiological colon pre... Read More about Colon length in pediatric health and constipation measured using magnetic resonance imaging and three dimensional skeletonization.

A randomised crossover trial of tezacaftor-ivacaftor for gut dysfunction in cystic fibrosis with magnetic resonance imaging (MRI) outcomes. (2023)
Journal Article

Background People with cystic fibrosis (CF) can experience recurrent chest infections, pancreatic exocrine insufficiency and gastrointestinal symptoms. New cystic fibrosis transmembrane conductance regulator (CFTR) modulator drugs improve lung fun... Read More about A randomised crossover trial of tezacaftor-ivacaftor for gut dysfunction in cystic fibrosis with magnetic resonance imaging (MRI) outcomes..

Ondansetron for irritable bowel syndrome with diarrhoea: randomised controlled trial (2023)
Journal Article

Background: Irritable bowel syndrome with diarrhoea is characterised by frequent, loose or watery stools with associated urgency, resulting in marked reduction of quality of life. Ondansetron, a 5-hydroxytryptamine-3 receptor antagonist, has been sho... Read More about Ondansetron for irritable bowel syndrome with diarrhoea: randomised controlled trial.

Editorial: Interaction between fibre and colonic fermentation assessed with a novel gas‐sensing capsule (2023)
Journal Article

In vivo observation of a stomach road or ‘Magenstrasse’ for gastric emptying using MRI imaging in healthy humans (2023)
Journal Article

The presence of a ‘magenstrasse’, a central ‘stomach road’ for flow and mixing of foods and drinks in the stomach had been predicted from hydrodynamic modelling. Here a magnetic resonance imaging (MRI) tagging technique was used to gain novel insight... Read More about In vivo observation of a stomach road or ‘Magenstrasse’ for gastric emptying using MRI imaging in healthy humans.

Thinking outside the box: a review of gastrointestinal symptoms and complications in cystic fibrosis (2023)
Journal Article

Introduction Gastrointestinal (GI)-related symptoms, complications, and comorbidities in cystic fibrosis (CF) are common and research to reduce their burden is a priority for the CF community. To enable future research, this review aimed to summariz... Read More about Thinking outside the box: a review of gastrointestinal symptoms and complications in cystic fibrosis.

MRI tagging of colonic chyme mixing in healthy subjects: Inter‐observer variability and reliability of the measurement with time (2023)
Journal Article

Background: Magnetic resonance imaging (MRI) tagging techniques have been applied to the GI tract to assess bowel contractions and content mixing. We aimed to evaluate the dependence of a tagging measurement (for assessing chyme mixing) on inter-obse... Read More about MRI tagging of colonic chyme mixing in healthy subjects: Inter‐observer variability and reliability of the measurement with time.

Editorial: ondansetron for patients with IBS-D and bowel-predominant symptoms—authors' reply (2023)
Journal Article

Randomised, placebo-controlled trial and meta-analysis show benefit of ondansetron for irritable bowel syndrome with diarrhoea: The TRITON trial (2023)
Journal Article

Summary: Background: Ondansetron may be beneficial in irritable bowel syndrome with diarrhoea (IBS‐D). Aim: To conduct a 12‐week parallel group, randomised, double‐blind, placebo‐controlled trial of ondansetron 4 mg o.d. (titrated up to 8 mg t.d.s.)... Read More about Randomised, placebo-controlled trial and meta-analysis show benefit of ondansetron for irritable bowel syndrome with diarrhoea: The TRITON trial.

Postinfective bowel dysfunction following Campylobacter enteritis is characterised by reduced microbiota diversity and impaired microbiota recovery (2022)
Journal Article

Objectives: Persistent bowel dysfunction following gastroenteritis (postinfectious (PI)-BD) is well recognised, but the associated changes in microbiota remain unclear. Our aim was to define these changes after gastroenteritis caused by a single orga... Read More about Postinfective bowel dysfunction following Campylobacter enteritis is characterised by reduced microbiota diversity and impaired microbiota recovery.

The serotonin receptor 3E variant is a risk factor for female IBS-D (2022)
Journal Article

Irritable bowel syndrome (IBS) is a gut-brain disorder of multifactorial origin. Evidence of disturbed serotonergic function in IBS accumulated for the 5-HT3 receptor family. 5-HT3Rs are encoded by HTR3 genes and control GI function, and peristalsis... Read More about The serotonin receptor 3E variant is a risk factor for female IBS-D.

Application of In Vivo MRI Imaging to Track a Coated Capsule and Its Disintegration in the Gastrointestinal Tract in Human Volunteers (2022)
Journal Article

Oral specially coated formulations have the potential to improve treatment outcomes of a range of diseases in distal intestinal tract whilst limiting systemic drug absorption and adverse effects. Their development is challenging, partly because of li... Read More about Application of In Vivo MRI Imaging to Track a Coated Capsule and Its Disintegration in the Gastrointestinal Tract in Human Volunteers.

Genome-wide analysis of 53,400 people with irritable bowel syndrome highlights shared genetic pathways with mood and anxiety disorders (2021)
Journal Article

Irritable bowel syndrome (IBS) results from disordered brain–gut interactions. Identifying susceptibility genes could highlight the underlying pathophysiological mechanisms. We designed a digestive health questionnaire for UK Biobank and combined ide... Read More about Genome-wide analysis of 53,400 people with irritable bowel syndrome highlights shared genetic pathways with mood and anxiety disorders.

Small bowel water content assessed by MRI in health and disease: a collation of single-centre studies (2021)
Journal Article

Background: New developments in MRI have allowed the non-invasive, accurate measurement of the small bowel water content (SBWC). Aims: To collate studies measuring SBWC following ingestion of a range of foods in both health and disease to provide dat... Read More about Small bowel water content assessed by MRI in health and disease: a collation of single-centre studies.

Psyllium reduces insulin-induced colonic gas production in irritable bowel syndrome: MRI and in vitro fermentation studies (2021)
Journal Article

Objective: Health promoting dietary fibre including inulin often triggers gastrointestinal symptoms in patients with irritable bowel syndrome (IBS), limiting their intake. Our aim was to test if co-administering psyllium with inulin would reduce gas... Read More about Psyllium reduces insulin-induced colonic gas production in irritable bowel syndrome: MRI and in vitro fermentation studies.

The alternative serotonin transporter promoter P2 impacts gene function in females with irritable bowel syndrome (2021)
Journal Article

Irritable bowel syndrome (IBS) is a gut-brain disorder in which symptoms are shaped by serotonin acting centrally and peripherally. The serotonin transporter gene SLC6A4 has been implicated in IBS pathophysiology, but the underlying genetic mechanism... Read More about The alternative serotonin transporter promoter P2 impacts gene function in females with irritable bowel syndrome.

Postprandial changes in gastrointestinal function and transit in cystic fibrosis assessed by Magnetic Resonance Imaging (2021)
Journal Article

Background: Cystic fibrosis (CF) is a multi-system genetic disorder affecting >72,000 people worldwide. Most CF patients experience gastrointestinal symptoms and can develop complications. However, the mechanisms of CF gut disease are not well unders... Read More about Postprandial changes in gastrointestinal function and transit in cystic fibrosis assessed by Magnetic Resonance Imaging.

Colonic Volume Changes in Paediatric Constipation Compared to Normal Values Measured Using MRI (2021)
Journal Article

Background: Functional constipation in children is common. Management of this condition can be challenging and is often based on symptom reports. Increased, objective knowledge of colonic volume changes in constipation compared to health could provid... Read More about Colonic Volume Changes in Paediatric Constipation Compared to Normal Values Measured Using MRI.