Silvia Arboleya1, Borja Sánchez1, Christian Milani2, Sabrina Duranti2, Gonzalo Solís3, Nuria Fernández4, Clara G de los Reyes-Gavilán1, Marco Ventura2, Abelardo Margolles1, Miguel Gueimonde5. 1. Department of Microbiology and Biochemistry of Dairy Products, Instituto de Productos Lácteos de Asturias (IPLA), Consejo Superior de Investigaciones Científicas (CSIC), Villaviciosa, Asturias, Spain. 2. Laboratory of Probiogenomics, Department of Life Sciences, University of Parma, Parma, Italy. 3. Pediatrics Service, Hospital Universitario Central de Asturias, SESPA, Oviedo, Asturias, Spain. 4. Pediatrics Service, Hospital de Cabueñes, Servicio de Salud Pública del Principado de Asturias (SESPA), Gijón, Asturias, Spain. 5. Department of Microbiology and Biochemistry of Dairy Products, Instituto de Productos Lácteos de Asturias (IPLA), Consejo Superior de Investigaciones Científicas (CSIC), Villaviciosa, Asturias, Spain. Electronic address: mgueimonde@ipla.csic.es.
Abstract
OBJECTIVES: To assess the establishment of the intestinal microbiota in very low birthweight preterm infants and to evaluate the impact of perinatal factors, such as delivery mode and perinatal antibiotics. STUDY DESIGN: We used 16S ribosomal RNA gene sequence-based microbiota analysis and quantitative polymerase chain reaction to evaluate the establishment of the intestinal microbiota. We also evaluated factors affecting the microbiota, during the first 3 months of life in preterm infants (n = 27) compared with full-term babies (n = 13). RESULTS: Immaturity affects the microbiota as indicated by a reduced percentage of the family Bacteroidaceae during the first months of life and by a higher initial percentage of Lactobacillaceae in preterm infants compared with full term infants. Perinatal antibiotics, including intrapartum antimicrobial prophylaxis, affects the gut microbiota, as indicated by increased Enterobacteriaceae family organisms in the infants. CONCLUSIONS: Prematurity and perinatal antibiotic administration strongly affect the initial establishment of microbiota with potential consequences for later health.
OBJECTIVES: To assess the establishment of the intestinal microbiota in very low birthweight preterm infants and to evaluate the impact of perinatal factors, such as delivery mode and perinatal antibiotics. STUDY DESIGN: We used 16S ribosomal RNA gene sequence-based microbiota analysis and quantitative polymerase chain reaction to evaluate the establishment of the intestinal microbiota. We also evaluated factors affecting the microbiota, during the first 3 months of life in preterm infants (n = 27) compared with full-term babies (n = 13). RESULTS: Immaturity affects the microbiota as indicated by a reduced percentage of the family Bacteroidaceae during the first months of life and by a higher initial percentage of Lactobacillaceae in preterm infants compared with full term infants. Perinatal antibiotics, including intrapartum antimicrobial prophylaxis, affects the gut microbiota, as indicated by increased Enterobacteriaceae family organisms in the infants. CONCLUSIONS: Prematurity and perinatal antibiotic administration strongly affect the initial establishment of microbiota with potential consequences for later health.
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