The gut remembers: the long-lasting effect of medication use on the gut microbiome

Area of Science:

• Microbiology
• Pharmacology
• Genomics

Background:

• Medications like antibiotics can impact gut microbiome composition.
• The long-term effects of drug-induced microbiome alterations are not well understood.

Purpose of the Study:

• To investigate the persistent effects of various medications on the gut microbiome composition.
• To assess the utility of combining electronic health records (EHR) with metagenomic data.

Main Methods:

• Utilized EHR and stool metagenomic data from 2,509 individuals.
• Analyzed medication use up to five years prior to sample collection.
• Examined the association between 186 different drugs and gut microbiome profiles.

Main Results:

• Nearly half of the tested drugs demonstrated long-term effects on the gut microbiome.
• Antibiotics, beta-blockers, benzodiazepines, proton-pump inhibitors, and antidepressants showed persistent microbiome changes.
• Repeated medication use led to additive effects on the microbiome.

Conclusions:

• Past medication use is a significant confounding factor in microbiome studies.
• Combining EHR and microbiome data is valuable for understanding drug-induced microbiome changes.
• Long-term microbiome alterations from medications necessitate careful consideration in research and clinical practice.