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Gut changes attributed to ageing: effects on intestinal microflora.

Xavier Hébuterne1

  • 1Gastroenterology and Nutrition, Hôpital de l'Archet, 06202 Nice Cedex 02, France. hebutern@unice.fr

Current Opinion in Clinical Nutrition and Metabolic Care
|December 24, 2002
PubMed
Summary

Aging alters gut microflora, decreasing beneficial bacteria and increasing harmful ones. Probiotics show promise in improving gut health and immunity in the elderly, potentially reducing infections.

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Area of Science:

  • Gastroenterology
  • Microbiology
  • Gerontology

Background:

  • Aging is associated with changes in gastrointestinal functions.
  • The elderly possess a large intestinal reserve capacity and pancreatic secretion capacity.
  • This review focuses on age-related gut microflora alterations and probiotic benefits.

Purpose of the Study:

  • To review changes in gut microflora in the elderly.
  • To explore the potential benefits of probiotics for the aging population.

Main Methods:

  • Review of recent studies on aging and intestinal microflora.
  • Analysis of the impact of probiotics on gastrointestinal health in the elderly.

Main Results:

  • Aging leads to decreased anaerobes and bifidobacteria, with increased enterobacteria.

Related Experiment Videos

  • Reduced immunity in the aged may increase susceptibility to gastrointestinal infections like Clostridium difficile-associated diarrhoea.
  • Probiotics, including Lactobacilli and Saccharomyces boulardii, show efficacy in treating Clostridium difficile-associated diarrhoea.
  • Probiotic supplementation may improve impaired immunity in healthy elderly individuals.

    • Conclusions:

    • Significant age-related changes in intestinal microflora have clinical implications.
    • Further research is needed to confirm if probiotics reduce infection rates and enhance vaccine effectiveness in the elderly.