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Related Concept Videos

Imaging Studies III: Gastrointestinal Motility Studies and Virtual Colonoscopy01:26

Imaging Studies III: Gastrointestinal Motility Studies and Virtual Colonoscopy

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This lesson explores three gastrointestinal imaging techniques: radionuclide testing, colonic transit studies, and virtual colonoscopy.
Radionuclide Testing
Radionuclide testing is a sophisticated medical technique for assessing gastrointestinal motility. It focuses on gastric emptying and colonic transit time. Radioactive markers track the movement of food through the digestive system, providing insights into gastrointestinal disorders.
In gastric emptying studies, a meal's liquid and...
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Guided Protocol for Fecal Microbial Characterization by 16S rRNA-Amplicon Sequencing
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S'Wipe: user-friendly stool collection for high-throughput gut metabolomics and multi-omics.

Dana Moradi1, Ali Lotfi1, Alexey V Melnik1,2,3

  • 1Department of Chemistry, University of Connecticut, Storrs, Connecticut, USA.

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|March 12, 2026
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Summary

A novel Stool Wipe (S'Wipe) method simplifies fecal sample collection for microbiome and metabolome analysis. This low-cost, stable approach enables large-scale studies and personalized health monitoring.

Keywords:
disease biomarkerseconomicalfecal metabolomegas chromatography-mass spectrometrygastrointestinal diagnosticshealth monitoringliquid chromatography-mass spectrometrylow costmetabotypingpatient self-testingpersonalized medicinepersonalized nutritionsample collectionshort-chain fatty acids

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Area of Science:

  • Microbiome research
  • Metabolomics
  • Gut health

Background:

  • The gut microbiome and its metabolites are crucial for health and disease.
  • Short-chain fatty acids (SCFAs) are key microbial metabolites linked to gastrointestinal disorders.
  • Current stool collection methods pose significant barriers to large-scale clinical use.

Purpose of the Study:

  • To develop an ultra-low-cost, user-friendly fecal collection method.
  • To overcome limitations of conventional stool testing for population-based studies.
  • To enable high-frequency self-monitoring of the gut metabolome.

Main Methods:

  • Development of Stool Wipe (S'Wipe), a cellulose wipe-based fecal collection system.
  • Preservation of samples in ethanol without refrigeration for mail shipment.
  • Mass spectrometry (MS) analysis of volatile and non-volatile metabolites.

Main Results:

  • S'Wipe demonstrated stability and reproducibility for diagnostically relevant molecules.
  • The method captures both volatile and non-volatile metabolites effectively.
  • S'Wipe performance was equivalent to direct stool collection.

Conclusions:

  • S'Wipe offers a practical solution for large-scale microbiome and metabolome studies.
  • The method facilitates longitudinal tracking and personalized medicine applications.
  • This approach supports participatory wellness through accessible self-sampling.