Evidence map›Paper›PMID 11867714›Full record

ArticleProceedings of the National Academy of Sciences of the United States of America2002

Dynamics of bacterial phenotype selection in a colonized host.

G F Webb, M J Blaser

Abstract read
In one paragraph

Article in Proceedings of the National Academy of Sciences of the United States of America, 2002. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 18 papers.

0numbers the graph read from it
0cells of the map it votes in
18citing papers in PubMed
–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.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

18 citing papers in PubMed.

  1. Article
  2. Review
  3. Article
  4. Article
  5. Article
  6. Article
  7. Article
  8. Article
  9. Article
  10. Article
  11. Host Lewis phenotype-dependent Helicobacter pylori Lewis antigen expression in rhesus monkeys.FASEB journal : official publication of the Federation of American Societies for Experimental Biology · 2006
    Article
  12. Article
  13. Article
  14. Extensive repetitive DNA facilitates prokaryotic genome plasticity.Proceedings of the National Academy of Sciences of the United States of America · 2003
    Article
  15. Article
  16. Article
  17. Article
  18. Article
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

2 authors.

G F WebbDepartment of Mathematics, Vanderbilt University, Nashville, TN 37240, USA. glenn.f.webb@vanderbilt.edu
M J Blaser

Funding

MATHEMATICAL MODELS OF H PYLORI GASTRIC COLONIZATIONR01GM063270 · NIGMS · NEW YORK UNIVERSITY SCHOOL OF MEDICINE · PI BLASER, MARTIN J · 2000 to 2013
$3.1M
H PYLORI RECOMBINATION AND GASTRIC COLONIZATIONR01DK053707 · NIDDK · VANDERBILT UNIVERSITY · PI BLASER, MARTIN J · 1997 to 2001
$475k
NIDDK NIH HHS R01DK 53707NIGMS NIH HHS R01 GM063270NIGMS NIH HHS R01GM 63270
6 · The paper itself

Abstract

The population dynamics of Helicobacter pylori during colonization in an infected animal host provide a quantifiable experimental model of in vivo microbial phenotype evolution. Phenotype variability in H. pylori populations can be typed as polymorphic expression of Lewis antigens on their cell surfaces. The high mutational frequency of H. pylori for Lewis expression provides substrate for differential selection by the host. Experimental challenge and successful colonization of mice and gerbils allows tracking of H. pylori phenotype variability from the initial inoculation to the ultimate establishment of a quasispecies. Colonization data provide a quantitative experimental model of phenotype evolution in a relatively large population (>10(4) individuals) over a relatively long evolutionary time scale (>10(3) generations). A mathematical model is developed to interpret the data in terms of the dynamic processes occurring during colonization. The mathematical model distinguishes the roles of selection and mutation; quantifies the effects of initial phenotype diversity, mutational frequency, and selective advantage; and applies generally to phenotype evolution in biological populations.

Indexed as

Evolution, MolecularAnimalsDisease Models, AnimalFemaleGerbillinaeHelicobacter InfectionsHelicobacter pyloriLewis Blood Group AntigensLewis X AntigenLipopolysaccharidesMathematical ComputingMiceMice, Inbred C3HModels, BiologicalMutagenesisPhenotypeLewis Blood Group AntigensLewis X AntigenLewis Y antigenlipopolysaccharide, Helicobacter pyloriLipopolysaccharides

Identifiers

PMID11867714
PMCPMC122485

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

None linked

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.