Impact of Intrapartum Antibiotic Prophylaxis on Offspring Microbiota

Area of Science:

• Microbiology
• Immunology
• Neonatal Health

Background:

• Infants establish crucial relationships with microbes at birth, essential for nutrient acquisition and immune development.
• Antibiotic administration during pregnancy is common for preventing maternal and neonatal infections, but long-term infant effects are unclear.
• Early-life microbial dysbiosis is linked to adult conditions like obesity, allergies, and autoimmune diseases.

Purpose of the Study:

• To review the scientific literature on the effects of intrapartum antibiotic prophylaxis on newborn microbial colonization.
• To understand how limited antibiotic doses impact the developing infant's microbiome.

Main Methods:

• Literature review focusing on genomic studies and existing research on intrapartum antibiotic prophylaxis.
• Analysis of studies examining the impact of antibiotics on infant microbial colonization patterns.

Main Results:

• Limited parenteral antibiotic administration before delivery consistently alters infant microbiota.
• A decrease in Bacteroidetes and an increase in Proteobacteria are observed.
• Cesarean delivery and formula feeding exacerbate and prolong these antibiotic-induced microbial changes.

Conclusions:

• Intrapartum antibiotic prophylaxis significantly impacts early microbial colonization in newborns.
• The long-term consequences of these alterations on infant growth and immune programming require further investigation.
• More research in human and animal models is needed to fully understand the impact of gestational antibiotic exposure.