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Bifidobacterium species colonization in infancy: A global cross-sectional comparison by population history of breastfeeding.
Nutrients 14:1423 (2022)
Bifidobacterium species are beneficial and dominant members of the breastfed infant gut microbiome; however, their health benefits are partially species-dependent. Here, we characterize the species and subspecies of Bifidobacterium in breastfed infants around the world to consider the potential impact of a historic dietary shift on the disappearance of B. longum subsp. infantis in some populations. Across populations, three distinct patterns of Bifidobacterium colonization emerged: (1) The dominance of Bifidobacterium longum subspecies infantis, (2) prevalent Bifidobacterium of multiple species, and (3) the frequent absence of any Bifidobacterium. These patterns appear related to a country's history of breastfeeding, with infants in countries with historically high rates of long-duration breastfeeding more likely to be colonized by B. longum subspecies infantis compared with infants in countries with histories of shorter-duration breastfeeding. In addition, the timing of infant colonization with B. longum subsp. infantis is consistent with horizontal transmission of this subspecies, rather than the vertical transmission previously reported for other Bifidobacterium species. These findings highlight the need to consider historical and cultural influences on the prevalence of gut commensals and the need to understand epidemiological transmission patterns of Bifidobacterium and other major commensals.
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Publikationstyp
Artikel: Journalartikel
Dokumenttyp
Wissenschaftlicher Artikel
Schlagwörter
Bifidobacterium ; Breastfeeding ; Infants ; Microbial Extinction
ISSN (print) / ISBN
2072-6643
e-ISSN
2072-6643
Zeitschrift
Nutrients
Quellenangaben
Band: 14,
Heft: 7,
Artikelnummer: 1423
Verlag
MDPI
Verlagsort
Basel
Nichtpatentliteratur
Publikationen
Begutachtungsstatus
Peer reviewed
Institut(e)
Institute of Asthma and Allergy Prevention (IAP)
Förderungen
Peter J Shields Endowed Chair in Dairy Food Science
Eunice Kennedy Shriver National Institute of Child Health and Human Development
US Department of Agriculture
Eunice Kennedy Shriver National Institute of Child Health and Human Development
US Department of Agriculture