Antibiotic and acid-suppression medications during early childhood are associated with obesity

Area of Science:

• Microbiome research
• Pediatric health
• Pharmacology

Background:

• Gut microbiota plays a crucial role in metabolic health.
• Early life exposures can have long-term effects on health outcomes.
• Medications like antibiotics and acid suppressants can significantly alter the gut microbiome.

Purpose of the Study:

• To investigate the association between early childhood prescriptions of antibiotics, histamine-2 receptor antagonists (H2RAs), and proton pump inhibitors (PPIs) and the diagnosis of obesity.
• To understand if early exposure to microbiota-altering medications influences the likelihood of developing childhood obesity.

Main Methods:

• A cohort study was conducted using data from US Department of Defense TRICARE beneficiaries born between October 2006 and September 2013.
• Exposure was defined as any prescription for antibiotics, H2RAs, or PPIs within the first two years of life.
• Obesity diagnosis was analyzed using Cox proportional hazards regression.

Main Results:

• Antibiotic prescriptions were associated with an increased risk of obesity (HR 1.26).
• Histamine-2 receptor antagonist (H2RA) and proton pump inhibitor (PPI) prescriptions were also linked to obesity, with risk increasing per 30-day supply.
• The association with obesity strengthened with exposure to multiple medication classes.

Conclusions:

• Prescriptions for antibiotics, acid suppressants, and combinations of medications in early life are associated with childhood obesity.
• Medications that alter the gut microbiota in early childhood may influence subsequent weight gain.
• Further research into the mechanisms linking early medication exposure and obesity is warranted.