Evidence map›Paper›PMID 20802066›Full record

ArticleApplied and environmental microbiology2010

Broad conservation of milk utilization genes in Bifidobacterium longum subsp. infantis as revealed by comparative genomic hybridization.

Riccardo G LoCascio, Prerak Desai, David A Sela, Bart Weimer, David A Mills

2 registry-linked trialsAbstract read
In one paragraph

Article in Applied and environmental microbiology, 2010. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to 2 registered trials, which are not on this map. Cited by 135 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
135citing papers in PubMed, 1 pooled it
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

NCT02457338 naactive not recruitingnot on this mapstarted 2014, after this paper: background citation

Infant Supplementation With Probiotic Bifidobacterium Longum Subsp. Infantis Study

TypeinterventionalSponsorUniversity of California, DavisRan2014 to 2027Enrolled120ConditionsHealthyArmsBifidobacterium
NCT03222804 nawithdrawnnot on this mapstarted 2017, after this paper: background citation

Establishing a Milk Oriented Microbiota in Healthy Term Infants

TypeinterventionalSponsorUniversity of California, DavisRan2017 to 2017Enrolled0ConditionsMicrobial ColonizationArmsBifidobacterium
3 · Its place in the literature

Who cites it

135 citing papers in PubMed, 1 synthesis or guideline pooled it.

  1. Pooled it
  2. Trial
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  4. Trial
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  7. Review
  8. Article
  9. Neonatal faecal abundance ofGut microbiome (Cambridge, England) · 2026
    Article
  10. Article
  11. Article
  12. Article
  13. Article
  14. Article
  15. Persistent reduction ofFrontiers in immunology · 2025
    Article
  16. Impact ofNutrients · 2024
    Review
  17. Article
  18. Article
  19. Article
  20. Article

75 more citing papers are in PubMed but not listed here.

4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

5 authors.

Riccardo G LoCascioDepartment of Viticulture and Enology, University of California, Davis, CA 95616, USA.
Prerak Desai
David A Sela
Bart Weimer
David A Mills

Funding

Necrotizing Enterocolitis: Prevention and PredictionR01HD059127 · NICHD · UNIVERSITY OF CALIFORNIA AT DAVIS · PI LEBRILLA, CARLITO B, MILLS, DAVID ANDREW · 2008 to 2012
$3.1M
Training Program in Biomolecular TechnologyT32GM008799 · NIGMS · UNIVERSITY OF CALIFORNIA DAVIS · PI LEACH, J. KENT · 2002 to 2016
$2.4M
Structures, Functions, & Genetic Diversity of Oligosaccharides in MilkR01HD061923 · NICHD · UNIVERSITY OF CALIFORNIA AT DAVIS · PI LEBRILLA, CARLITO B · 2009 to 2013
$1.6M
NICHD NIH HHS 1R01HD061923NICHD NIH HHS 5R01HD059127NICHD NIH HHS R01 HD059127NICHD NIH HHS R01 HD061923NIGMS NIH HHS T32 GM008799NIGMS NIH HHS T32-GM08799
6 · The paper itself

Abstract

Human milk oligosaccharides (HMOs) are the third-largest solid component of milk. Their structural complexity renders them nondigestible to the host but liable to hydrolytic enzymes of the infant colonic microbiota. Bifidobacteria and, frequently, Bifidobacterium longum strains predominate the colonic microbiota of exclusively breast-fed infants. Among the three recognized subspecies of B. longum, B. longum subsp. infantis achieves high levels of cell growth on HMOs and is associated with early colonization of the infant gut. The B. longum subsp. infantis ATCC 15697 genome features five distinct gene clusters with the predicted capacity to bind, cleave, and import milk oligosaccharides. Comparative genomic hybridizations (CGHs) were used to associate genotypic biomarkers among 15 B. longum strains exhibiting various HMO utilization phenotypes and host associations. Multilocus sequence typing provided taxonomic subspecies designations and grouped the strains between B. longum subsp. infantis and B. longum subsp. longum. CGH analysis determined that HMO utilization gene regions are exclusively conserved across all B. longum subsp. infantis strains capable of growth on HMOs and have diverged in B. longum subsp. longum strains that cannot grow on HMOs. These regions contain fucosidases, sialidases, glycosyl hydrolases, ABC transporters, and family 1 solute binding proteins and are likely needed for efficient metabolism of HMOs. Urea metabolism genes and their activity were exclusively conserved in B. longum subsp. infantis. These results imply that the B. longum has at least two distinct subspecies: B. longum subsp. infantis, specialized to utilize milk carbon, and B. longum subsp. longum, specialized for plant-derived carbon metabolism.

Indexed as

Genes, BacterialBifidobacteriumComparative Genomic HybridizationDNA, BacterialGenotypeHumansMetabolic Networks and PathwaysMilk, HumanMolecular Sequence DataMultigene FamilyMultilocus Sequence TypingOligosaccharidesPhylogenySequence Analysis, DNAUreaDNA, BacterialOligosaccharidesUrea

Identifiers

PMID20802066
PMCPMC2976205

What OpenQuestion holds

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Registered trials

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.