TY - JOUR
T1 - Recovery of gut microbiota of healthy adults following antibiotic exposure
AU - Palleja, Albert
AU - Mikkelsen, Kristian H
AU - Forslund, Sofia K
AU - Kashani, Alireza
AU - Allin, Kristine H
AU - Nielsen, Trine
AU - Hansen, Tue H
AU - Liang, Suisha
AU - Feng, Qiang
AU - Zhang, Chenchen
AU - Pyl, Paul Theodor
AU - Coelho, Luis Pedro
AU - Yang, Huanming
AU - Wang, Jian
AU - Typas, Athanasios
AU - Nielsen, Morten F.
AU - Nielsen, Henrik Bjorn
AU - Bork, Peer
AU - Wang, Jun
AU - Vilsbøll, Tina
AU - Hansen, Torben
AU - Knop, Filip K
AU - Arumugam, Manimozhiyan
AU - Pedersen, Oluf
PY - 2018/11/1
Y1 - 2018/11/1
N2 - To minimize the impact of antibiotics, gut microorganisms harbour and exchange antibiotics resistance genes, collectively called their resistome. Using shotgun sequencing-based metagenomics, we analysed the partial eradication and subsequent regrowth of the gut microbiota in 12 healthy men over a 6-month period following a 4-day intervention with a cocktail of 3 last-resort antibiotics: meropenem, gentamicin and vancomycin. Initial changes included blooms of enterobacteria and other pathobionts, such as Enterococcus faecalis and Fusobacterium nucleatum, and the depletion of Bifidobacterium species and butyrate producers. The gut microbiota of the subjects recovered to near-baseline composition within 1.5 months, although 9 common species, which were present in all subjects before the treatment, remained undetectable in most of the subjects after 180 days. Species that harbour β-lactam resistance genes were positively selected for during and after the intervention. Harbouring glycopeptide or aminoglycoside resistance genes increased the odds of de novo colonization, however, the former also decreased the odds of survival. Compositional changes under antibiotic intervention in vivo matched results from in vitro susceptibility tests. Despite a mild yet long-lasting imprint following antibiotics exposure, the gut microbiota of healthy young adults are resilient to a short-term broad-spectrum antibiotics intervention and their antibiotics resistance gene carriage modulates their recovery processes.
AB - To minimize the impact of antibiotics, gut microorganisms harbour and exchange antibiotics resistance genes, collectively called their resistome. Using shotgun sequencing-based metagenomics, we analysed the partial eradication and subsequent regrowth of the gut microbiota in 12 healthy men over a 6-month period following a 4-day intervention with a cocktail of 3 last-resort antibiotics: meropenem, gentamicin and vancomycin. Initial changes included blooms of enterobacteria and other pathobionts, such as Enterococcus faecalis and Fusobacterium nucleatum, and the depletion of Bifidobacterium species and butyrate producers. The gut microbiota of the subjects recovered to near-baseline composition within 1.5 months, although 9 common species, which were present in all subjects before the treatment, remained undetectable in most of the subjects after 180 days. Species that harbour β-lactam resistance genes were positively selected for during and after the intervention. Harbouring glycopeptide or aminoglycoside resistance genes increased the odds of de novo colonization, however, the former also decreased the odds of survival. Compositional changes under antibiotic intervention in vivo matched results from in vitro susceptibility tests. Despite a mild yet long-lasting imprint following antibiotics exposure, the gut microbiota of healthy young adults are resilient to a short-term broad-spectrum antibiotics intervention and their antibiotics resistance gene carriage modulates their recovery processes.
U2 - 10.1038/s41564-018-0257-9
DO - 10.1038/s41564-018-0257-9
M3 - Journal article
C2 - 30349083
SN - 2058-5276
VL - 3
SP - 1255
EP - 1265
JO - Nature Microbiology
JF - Nature Microbiology
IS - 11
ER -