Establishment of the bacterial fecal community during the first month of life in Brazilian newborns

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art_CARNEIRO-SAMPAIO_Establishment_of_the_bacterial_fecal_community_during_the_2012.PDF (804.03 KB)
Citações na Scopus
18
Tipo de produção
article
Data de publicação
2012
DOI
SciELO
Scopus
Web of Science
PubMed
Título da Revista
ISSN da Revista
Título do Volume
Editora
HOSPITAL CLINICAS, UNIV SAO PAULO
Autores
BRANDT, Katia
TADDEI, Carla R.
TAKAGI, Elizabeth H.
OLIVEIRA, Fernanda F.
DUARTE, Rubens T. D.
IRINO, Isabel
MARTINEZ, Marina B.
Citação
CLINICS, v.67, n.2, p.113-123, 2012
Projetos de Pesquisa
Unidades Organizacionais
Fascículo
Resumo
OBJECTIVE: The establishment of the intestinal microbiota in newborns is a critical period with possible long-term consequences for human health. In this research, the development of the fecal microbiota of a group of exclusively breastfed neonates living in low socio-economic conditions in the city of Sao Paulo, Brazil, during the first month of life, was studied. METHODS: Fecal samples were collected from ten neonates on the second, seventh, and 30th days after birth. One of the neonates underwent antibiotic therapy. Molecular techniques were used for analysis; DNA was extracted from the samples, and 16S rRNA libraries were sequenced and phylogenetically analyzed after construction. A real-time polymerase chain reaction (PCR) was performed on the samples taken from the 30th day to amplify DNA from Bifidobacterium sp. RESULTS: The primary phylogenetic groups identified in the samples were Escherichia and Clostridium. Staphylococcus was identified at a low rate. Bifidobacterium sp. was detected in all of the samples collected on the 30th day. In the child who received antibiotics, a reduction in anaerobes and Escherichia, which was associated with an overgrowth of Klebsiella, was observed throughout the experimental period. CONCLUSION: The observed pattern of Escherichia predominance and reduced Staphylococcus colonization is in contrast with the patterns observed in neonates living in developed countries.
Palavras-chave
Microbiota, Breastfeeding, 16S rRNA, Escherichia, Clostridium
URI
https://observatorio.fm.usp.br/handle/OPI/1030
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Coleções
Artigos e Materiais de Revistas Científicas - FM/MPE
Artigos e Materiais de Revistas Científicas - HC/ICr
Artigos e Materiais de Revistas Científicas - LIM/36