1. Associations between postprandial symptoms, hydrogen and methane production, and transit time in irritable bowel syndrome
- Author
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Joost P. Algera, Esther Colomier, Chloé Melchior, Jóhann P. Hreinsson, Irina Midenfjord, Egbert Clevers, Magnus Simrén, Hans Törnblom, douville, sabine, University of Gothenburg (GU), Technologie campus Gent - KU Leuven (KU Leuven), Nutrition, Inflammation et axe Microbiote-Intestin-Cerveau (ADEN), Université de Rouen Normandie (UNIROUEN), Normandie Université (NU)-Normandie Université (NU)-Institute for Research and Innovation in Biomedicine (IRIB), Normandie Université (NU)-Normandie Université (NU)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Centre National de la Recherche Scientifique (CNRS)-Université de Rouen Normandie (UNIROUEN), Normandie Université (NU)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Centre National de la Recherche Scientifique (CNRS)-Institut National de la Santé et de la Recherche Médicale (INSERM), Institute for Research and Innovation in Biomedicine (IRIB), Normandie Université (NU)-Normandie Université (NU)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Centre National de la Recherche Scientifique (CNRS), Centre d'Investigation Clinique [CHU Rouen] (CIC Rouen), Hôpital Charles Nicolle [Rouen], CHU Rouen, Normandie Université (NU)-Normandie Université (NU)-CHU Rouen, Normandie Université (NU)-Normandie Université (NU)-Université de Rouen Normandie (UNIROUEN), Normandie Université (NU)-Institut National de la Santé et de la Recherche Médicale (INSERM), UNIROUEN - UFR Santé (UNIROUEN UFR Santé), Normandie Université (NU)-Normandie Université (NU), Normandie Université (NU), and University of North Carolina at Chapel Hill (UNC)
- Subjects
colonic fermentation ,Physiology ,Clinical Neurology ,QUESTIONNAIRE ,INTESTINAL BACTERIAL OVERGROWTH ,MICROENVIRONMENT ,ABDOMINAL-PAIN ,IBS ,CARBOHYDRATE ,MOTILITY ,gastrointestinal transit ,symptom assessment ,Science & Technology ,Gastroenterology & Hepatology ,Endocrine and Autonomic Systems ,Neurosciences ,SOMATIZATION ,Gastroenterology ,[SDV.MHEP.HEG]Life Sciences [q-bio]/Human health and pathology/Hépatology and Gastroenterology ,DEPRESSION ,[SDV.MHEP.HEG] Life Sciences [q-bio]/Human health and pathology/Hépatology and Gastroenterology ,GASTROINTESTINAL TRANSIT ,visceral hypersensitivity ,Neurosciences & Neurology ,SENSITIVITY ,Life Sciences & Biomedicine - Abstract
BACKGROUND: Abnormal oroanal transit time (OATT) and visceral hypersensitivity are key pathophysiological factors in irritable bowel syndrome (IBS). The lactulose nutrient challenge test (LNCT) has been developed to assess the postprandial symptoms and gut microbial fermentation. We aimed to investigate associations between OATT, rectal sensitivity, and LNCT in IBS patients. METHODS: We included 263 IBS patients from two study cohorts, where the link between pathophysiology and symptoms was investigated. During the LNCT, severity of postprandial symptoms was graded, and breath hydrogen/methane concentrations were measured after ingestion of a combined lactulose nutrient drink every 15 min for 4 h. The patients underwent rectal sensitivity (rectal barostat) and OATT (radiopaque markers) investigations. Comorbid conditions (functional dyspepsia, anxiety, depression, and somatization) were assessed with questionnaires. KEY RESULTS: After controlling for comorbid conditions, rectal sensitivity was associated with abdominal pain (p
- Published
- 2022
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