Vertical mother-neonate transfer of maternal gut bacteria via breastfeeding.
Environ Microbiol
; 16(9): 2891-904, 2014 Sep.
Article
em En
| MEDLINE
| ID: mdl-24033881
ABSTRACT
Breast milk has recently been recognized as source of commensal and potential probiotic bacteria. The present study investigated whether viable strains of gut-associated obligate anaerobes are shared between the maternal and neonatal gut ecosystem via breastfeeding. Maternal faeces, breast milk and corresponding neonatal faeces collected from seven mothers-neonate pairs at three neonatal sampling points were analyzed by culture-independent (pyrosequencing) and culture-dependent methods (16S rRNA gene sequencing, pulsed field gel electrophoresis, random amplified polymorphic DNA and repetitive extragenic palindromic polymerase chain reaction. Pyrosequencing allowed identifying gut-associated obligate anaerobic genera, like Bifidobacterium, Bacteroides, Parabacteroides and members of the Clostridia (Blautia, Clostridium, Collinsella and Veillonella) shared between maternal faeces, breast milk and neonatal faeces. Using culture, a viable strain of Bifidobacterium breve was shown to be shared between all three ecosystems within one mother-neonate pair. Furthermore, pyrosequencing revealed that several butyrate-producing members of the Clostridia (Coprococcus, Faecalibacterium, Roseburia and Subdoligranulum) were shared between maternal faeces and breast milk. This study shows that (viable) obligate gut-associated anaerobes may be vertically transferred from mother to neonate via breastfeeding. Thus, our data support the recently suggested hypothesis of a novel way of mother-neonate communication, in which maternal gut bacteria reach breast milk via an entero-mammary pathway to influence neonatal gut colonization and maturation of the immune system.
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Bactérias
/
Aleitamento Materno
/
Trato Gastrointestinal
/
Fezes
/
Leite Humano
Limite:
Female
/
Humans
/
Newborn
Idioma:
En
Ano de publicação:
2014
Tipo de documento:
Article