Basic Definitions and Concepts: Organization of the Gut Microbiome

Eamonn M M Quigley1

  • 1Division of Gastroenterology and Hepatology, Lynda K and David M Underwood Center for Digestive Disorders, Houston Methodist Hospital, Weill Cornell Medical College, 6550 Fannin Street, SM 1001, Houston, TX 77030, USA.

Insights

The gut microbiome is increasingly linked to diverse diseases beyond the digestive system, including neurological and allergic conditions. Advanced technologies are enabling deeper exploration of these connections and associated terminology.

Area of Science:

  • Microbiology
  • Human Health
  • Gastroenterology

Background:

  • Emerging research suggests the gut microbiome influences a wide range of diseases previously thought unrelated to the gastrointestinal tract.
  • Conditions such as depression, autism, Parkinson disease, allergies, and asthma are being investigated for potential links to microbial dysbiosis.
  • While initial evidence often comes from animal models, human studies are rapidly expanding.

Purpose of the Study:

  • To review the expanding role of the microbiome in human health and disease.
  • To introduce and define new terminology associated with microbiome research.
  • To highlight the growing body of evidence linking the gut microbiome to non-gastrointestinal disorders.

Main Methods:

  • Review of current scientific literature on the microbiome and its association with various diseases.
  • Identification and explanation of novel terms and concepts in microbiome research.
  • Synthesis of findings from animal and human studies.

Main Results:

  • The microbiome's influence is now recognized in neurological disorders (e.g., Parkinson disease, autism), psychiatric conditions (e.g., depression), and immune-related diseases (e.g., allergy, asthma).
  • Technological advancements facilitate comprehensive analysis of gut microbial composition, function, and metabolic output in humans.
  • A growing lexicon of terms is emerging to describe the complex interactions within the microbiome and its host.

Conclusions:

  • The microbiome represents a significant factor in human health and disease, extending far beyond the gut.
  • Continued research and standardized terminology are crucial for advancing our understanding of microbiome-host interactions.
  • The integration of microbiome data into clinical practice holds promise for future diagnostics and therapeutics.

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