Anaerobic bacteria in the intestinal microbiota of Brazilian children
Clinics
;
72(3): 154-160, Mar. 2017. tab, graf
Artículo
en Inglés
| LILACS
| ID: biblio-840058
ABSTRACT
OBJECTIVE:
Changes in the neonatal gut environment allow for the colonization of the mucin layer and lumen by anaerobic bacteria. The aim of the present study was to evaluate Bifidobacterium, Lactobacillus and Lactococcus colonization through the first year of life in a group of 12 Brazilian infants and to correlate these data with the levels of Escherichia coli. The presence of anaerobic members of the adult intestinal microbiota, including Eubacterium limosum and Faecalibacterium prausnitzii, was also evaluated.METHODS:
Fecal samples were collected during the first year of life, and 16S rRNA from anaerobic and facultative bacteria was detected by real-time PCR.RESULTS:
Bifidobacterium was present at the highest levels at all of the studied time points, followed by E. coli and Lactobacillus. E. limosum was rarely detected, and F. prausnitzii was detected only in the samples from the latest time points.CONCLUSION:
These results are consistent with reports throughout the world on the community structure of the intestinal microbiota in infants fed a milk diet. Our findings also provide evidence for the influence of the environment on intestinal colonization due to the high abundance of E. coli. The presence of important anaerobic genera was observed in Brazilian infants living at a low socioeconomic level, a result that has already been well established for infants living in developed countries.
Texto completo:
Disponible
Índice:
LILACS (Américas)
Asunto principal:
Bacterias Anaerobias
/
Heces
/
Microbioma Gastrointestinal
/
Intestinos
Límite:
Humanos
/
Lactante
/
Recién Nacido
País/Región como asunto:
America del Sur
/
Brasil
Idioma:
Inglés
Revista:
Clinics
Asunto de la revista:
Medicina
Año:
2017
Tipo del documento:
Artículo
/
Documento de proyecto
País de afiliación:
Brasil
Institución/País de afiliación:
Universidade de São Paulo/BR
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