Exploring the effects of antimicrobial treatment on the gut and oral microbiomes and resistomes from elderly long-term care facility residents via shotgun DNA sequencing

Monitoring antibiotic-resistant bacteria (ARB) and understanding the effects of antimicrobial drugs on the human microbiome and resistome are crucial for public health. However, no study has investigated the association between antimicrobial treatment and the microbiome-resistome relationship in long-term care facilities, where residents act as reservoirs of ARB but are not included in the national surveillance for ARB. We conducted shotgun metagenome sequencing of oral and stool samples from long-term care facility residents and explored the effects of antimicrobial treatment on the human microbiome and resistome using two types of comparisons: cross-sectional comparisons based on antimicrobial treatment history in the past 6 months and within-subject comparisons between stool samples before, during and 2-4 weeks after treatment using a single antimicrobial drug. Cross-sectional analysis revealed two characteristics in the group with a history of antimicrobial treatment: the archaeon Methanobrevibacter was the only taxon that significantly increased in abundance, and the total abundance of antimicrobial resistance genes (ARGs) was also significantly higher. Within-subject comparisons showed that taxonomic diversity did not decrease during treatment, suggesting that the effect of the prescription of a single antimicrobial drug in usual clinical treatment on the gut microbiota is likely to be smaller than previously thought, even among very elderly people. Additional analysis of the detection limit of ARGs revealed that they could not be detected when contig coverage was <2.0. This study is the first to report the effects of usual antimicrobial treatments on the microbiome and resistome of long-term care facility residents.

Medienart:

E-Artikel

Erscheinungsjahr:

2024

Erschienen:

2024

Enthalten in:

Zur Gesamtaufnahme - volume:10

Enthalten in:

Microbial genomics - 10(2024), 2 vom: 19. Feb.

Sprache:

Englisch

Beteiligte Personen:

Kitamura, Norikazu [VerfasserIn]
Kajihara, Toshiki [VerfasserIn]
Volpiano, Camila Gazolla [VerfasserIn]
Naung, Myo [VerfasserIn]
Méric, Guillaume [VerfasserIn]
Hirabayashi, Aki [VerfasserIn]
Yano, Hirokazu [VerfasserIn]
Yamamoto, Masaya [VerfasserIn]
Yoshida, Fumiaki [VerfasserIn]
Kobayashi, Tsunesaburo [VerfasserIn]
Yamanashi, Sari [VerfasserIn]
Kawamura, Tadao [VerfasserIn]
Matsunaga, Nobuaki [VerfasserIn]
Okochi, Jiro [VerfasserIn]
Sugai, Motoyuki [VerfasserIn]
Yahara, Koji [VerfasserIn]

Links:

Volltext

Themen:

9007-49-2
Angiotensin Receptor Antagonists
Angiotensin-Converting Enzyme Inhibitors
Anti-Infective Agents
Antibiotics
Antimicrobial resistance
DNA
Journal Article
Long-term care facilities
Microbiome
Microbiota
Shotgun metagenomics

Anmerkungen:

Date Completed 21.02.2024

Date Revised 13.03.2024

published: Print

Citation Status MEDLINE

doi:

10.1099/mgen.0.001180

funding:

Förderinstitution / Projekttitel:

PPN (Katalog-ID):

NLM368664376