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Introduction to the human gut microbiota.

Elizabeth Thursby1, Nathalie Juge2

  • 1The Gut Health and Food Safety Programme, Institute of Food Research, Norwich Research Park, Norwich NR4 7UA, U.K.

The Biochemical Journal
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PubMed
Summary
This summary is machine-generated.

The human gut microbiota, a complex microbial community, influences health and disease. Diet significantly shapes its development and composition throughout life, impacting immunity and metabolism.

Keywords:
gastrointestinal tractgut microbiotasymbiosis

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Area of Science:

  • Microbiology
  • Human Health
  • Gastroenterology

Background:

  • The human gastrointestinal (GI) tract hosts a dynamic gut microbiota crucial for host homeostasis and disease.
  • Factors like diet influence the establishment and composition of the gut microbiota from infancy.
  • Gut bacteria are vital for immune function, metabolic balance, and pathogen defense.

Purpose of the Study:

  • To review the current understanding of human GI microbiota development and composition.
  • To explore the impact of gut microbiota on gut integrity and host health.
  • To highlight the necessity of mechanistic studies on host-microbe interactions.

Main Methods:

  • This review synthesizes existing research on gut microbiota development, composition, and function.
  • It examines the role of diet as a primary driver of microbiota changes.
  • The review discusses the implications of dysbiosis in inflammatory diseases and infections.

Main Results:

  • The gut microbiota's composition is influenced by multiple factors, with diet being a key determinant.
  • Altered gut bacterial composition (dysbiosis) is linked to various inflammatory diseases and infections.
  • Understanding inter-individual variations and GI tract heterogeneity is crucial for interpreting microbiota studies.

Conclusions:

  • The human gut microbiota plays a significant role in maintaining host health and integrity.
  • Further mechanistic studies are needed to elucidate host-microbe interactions and causality in dysbiosis.
  • A comprehensive understanding of the gut microbiota is essential for advancing human health research.