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  • Iribarren, Cristina,1993Gothenburg University,Göteborgs universitet,Institutionen för biomedicin, avdelningen för mikrobiologi och immunologi,Institute of Biomedicine, Department of Microbiology and Immunology,University of Gothenburg (author)

Temporal stability of fecal metabolomic profiles in irritable bowel syndrome

  • Article/chapterEnglish2024

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  • 2024

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  • LIBRIS-ID:oai:gup.ub.gu.se/335316
  • https://gup.ub.gu.se/publication/335316URI
  • https://doi.org/10.1111/nmo.14741DOI
  • https://research.chalmers.se/publication/539541URI

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  • Language:English

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  • Subject category:ref swepub-contenttype
  • Subject category:art swepub-publicationtype

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  • Background: The potential of the fecal metabolome to serve as a biomarker for irritable bowel syndrome (IBS) depends on its stability over time. Therefore, this study aimed to determine the temporal dynamics of the fecal metabolome, and the potential relationship with stool consistency, in patients with IBS and healthy subjects. Methods: Fecal samples were collected in two cohorts comprising patients with IBS and healthy subjects. For Cohort A, fecal samples collected during 5 consecutive days were analyzed by gas chromatography-tandem mass spectrometry (GC–MS/MS). For Cohort B, liquid chromatography-MS (LC–MS) was used to analyze fecal samples collected at week 0 (healthy and IBS) and at week 4 (patients only). Stool consistency was determined by the Bristol Stool Form scale. Key Results: Fecal samples were collected from Cohort A (seven healthy subjects and eight IBS patients), and Cohort B (seven healthy subjects and 11 IBS patients). The fecal metabolome of IBS patients was stable short-term (Cohort A, 5 days and within the same day) and long-term (Cohort B, 4 weeks). A similar trend was observed over 5 days in the healthy subjects of Cohort A. The metabolome dissimilarity was larger between than within participants over time in both healthy subjects and IBS patients. Further analyses showed that patients had greater range of stool forms (types) than healthy subjects, with no apparent influence on metabolomic dynamics. Conclusion & Inferences: The fecal metabolome is stable over time within IBS patients as well as healthy subjects. This supports the concept of a stable fecal metabolome in IBS despite fluctuations in stool consistency, and the use of single timepoint sampling to further explore how the fecal metabolome is related to IBS pathogenesis.

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  • Savolainen, Otto,1982Chalmers tekniska högskola,Chalmers University of Technology(Swepub:cth)sotto (author)
  • Sapnara, MariaGothenburg University,Göteborgs universitet,Institutionen för biomedicin, avdelningen för mikrobiologi och immunologi,Institute of Biomedicine, Department of Microbiology and Immunology,University of Gothenburg(Swepub:gu)xsapma (author)
  • Törnblom, Hans,1966Gothenburg University,Göteborgs universitet,Institutionen för medicin, avdelningen för molekylär och klinisk medicin,Institute of Medicine, Department of Molecular and Clinical Medicine,University of Gothenburg(Swepub:gu)xtornh (author)
  • Simrén, Magnus,1966Gothenburg University,Göteborgs universitet,Institutionen för medicin, avdelningen för molekylär och klinisk medicin,Institute of Medicine, Department of Molecular and Clinical Medicine,University of Gothenburg(Swepub:gu)xsimrm (author)
  • Magnusson, Maria K,1972Gothenburg University,Göteborgs universitet,Institutionen för biomedicin, avdelningen för mikrobiologi och immunologi,Institute of Biomedicine, Department of Microbiology and Immunology,University of Gothenburg(Swepub:gu)xmmara (author)
  • Öhman, Lena,1967Gothenburg University,Göteborgs universitet,Institutionen för biomedicin, avdelningen för mikrobiologi och immunologi,Institute of Biomedicine, Department of Microbiology and Immunology,University of Gothenburg(Swepub:gu)xohmal (author)
  • Göteborgs universitetInstitutionen för biomedicin, avdelningen för mikrobiologi och immunologi (creator_code:org_t)

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  • In:Neurogastroenterology and Motility36:31350-19251365-2982

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