Evidence map›Paper›PMID 20008521›Full record

ArticleThe Journal of experimental medicine2009

Host-dependent Lewis (Le) antigen expression in Helicobacter pylori cells recovered from Leb-transgenic mice.

Mary Ann Pohl, Judith Romero-Gallo, Janaki L Guruge, Doris B Tse, Jeffrey I Gordon, Martin J Blaser

Open access · bronzeAbstract read
In one paragraph

Article in The Journal of experimental medicine, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 19 papers.

0numbers the graph read from it
0cells of the map it votes in
19citing papers in PubMed
4.4field-weighted citation impact, top 6% of its field
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

19 citing papers in PubMed, 40 citations in OpenAlex.

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  9. Intestinal fucose as a mediator of host-microbe symbiosis.Journal of immunology (Baltimore, Md. : 1950) · 2015
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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

6 authors at 3 institutions in 1 country.

Mary Ann PohlDepartment of Medicine, New York University School of Medicine and Veteran's Administration Medical Center, New York, NY 10016, USA. map442@med.nyu.edu
Judith Romero-Gallo
Janaki L Guruge
Doris B Tse
Jeffrey I Gordon
Martin J Blaser
New York University · USVanderbilt University · USWashington University in St. Louis · US

Funding

INFECTIOUS DISEASES &BASIC MICROBIOLOGICAL MECHANISMST32AI007180 · NIAID · NEW YORK UNIVERSITY SCHOOL OF MEDICINE · PI WEISER, JEFFREY NEAL · 1985 to 2022
$8.9M
MATHEMATICAL MODELS OF H PYLORI GASTRIC COLONIZATIONR01GM063270 · NIGMS · NEW YORK UNIVERSITY SCHOOL OF MEDICINE · PI BLASER, MARTIN J · 2000 to 2013
$3.1M
NIAID NIH HHS 2T32 AI007180NIAID NIH HHS T32 AI007180NIGMS NIH HHS R01 GM063270NIGMS NIH HHS R01GM63270
6 · The paper itself

Abstract

Variation of surface antigen expression is a mechanism used by microbes to adapt to and persist within their host habitats. Helicobacter pylori, a persistent bacterial colonizer of the human stomach, can alter its surface Lewis (Le) antigen expression. We examined H. pylori colonization in mice to test the hypothesis that host phenotype selects for H. pylori (Le) phenotypes. When wild-type and Le(b)-expressing transgenic FVB/N mice were challenged with H. pylori strain HP1, expressing Le(x) and Le(y), we found that bacterial populations recovered after 8 mo from Le(b)-transgenic, but not wild-type, mice expressed Le(b). Changes in Le phenotype were linked to variation of a putative galactosyltransferase gene (beta-(1,3)galT); mutagenesis and complementation revealed its essential role in type I antigen expression. These studies indicate that H. pylori evolves to resemble the host's gastric Le phenotype, and reveal a bacterial genetic locus that is subject to host-driven selection pressure.

Indexed as

Adhesins, BacterialAnimalsAntibodies, BacterialFlow CytometryFucosyltransferasesGalactosyltransferasesHelicobacter pyloriLewis Blood Group AntigensLewis X AntigenLipopolysaccharidesMiceMice, TransgenicOligosaccharidesPhenotype3-aminopropyl fucopyranosyl-1-2-galactopyranosyl-1-3-(fucopyranosyl-1-4)-2-acetamido-2-deoxyglucopyranosyl-1-3-galactopyranosyl-1-4-glucopyranosideAdhesins, BacterialAntibodies, BacterialBabA protein, Helicobacter pyloriFucosyltransferasesGalactosyltransferasesLewis Blood Group AntigensLewis X AntigenLewis Y antigenLipopolysaccharidesOligosaccharides

Identifiers

PMID20008521
PMCPMC2806470
OpenAlexW2097413608

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC-SA
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.