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Systematic review: gastric microbiota in health and disease

Publikation: Bidrag til tidsskriftTidsskriftartikelForskningpeer review

DOI

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  • Mirjana Rajilic-Stojanovic
  • Ceu Figueiredo
  • Annemieke Smet
  • Richard Hansen
  • Juozas Kupcinskas
  • Theo Rokkas
  • Leif Andersen
  • Jose C Machado
  • Gianluca Ianiro
  • Antonio Gasbarrini
  • Marcis Leja
  • Javier P Gisbert
  • Georgina L Hold
Vis graf over relationer

BACKGROUND: Helicobacter pylori is the most infamous constituent of the gastric microbiota and its presence is the strongest risk factor for gastric cancer and other gastroduodenal diseases. Although historically the healthy stomach was considered a sterile organ, we now know it is colonised with a complex microbiota. However, its role in health and disease is not well understood.

AIM: To systematically explore the literature on the gastric microbiota in health and disease as well as the gut microbiota after bariatric surgery.

METHODS: A systematic search of online bibliographic databases MEDLINE/EMBASE was performed between 1966 and February 2019 with screening in accordance with Preferred Reporting Items for Systematic Reviews and Meta-Analyses guidelines. Randomised controlled trials, cohort studies and observational studies were included if they reported next-generation sequencing derived microbiota analysis on gastric aspirate/tissue or stool samples (bariatric surgical outcomes).

RESULTS: Sixty-five papers were eligible for inclusion. With the exception of H pylori-induced conditions, overarching gastric microbiota signatures of health or disease could not be determined. Gastric carcinogenesis induces a progressively altered microbiota with an enrichment of oral and intestinal taxa as well as significant changes in host gastric mucin expression. Proton pump inhibitors usage increases gastric microbiota richness. Bariatric surgery is associated with an increase in potentially pathogenic proteobacterial species in patient stool samples.

CONCLUSION: While H pylori remains the single most important risk factor for gastric disease, its capacity to shape the collective gastric microbiota remains to be fully elucidated. Further studies are needed to explore the intricate host/microbial and microbial/microbial interplay.

OriginalsprogEngelsk
TidsskriftAlimentary Pharmacology and Therapeutics
Vol/bind51
Udgave nummer6
Sider (fra-til)582-602
Antal sider21
ISSN0269-2813
DOI
StatusUdgivet - mar. 2020

Bibliografisk note

© 2020 John Wiley & Sons Ltd.

ID: 62064514