Evidence map›Paper›PMID 12228314›Full record

ArticleInfection and immunity2002

Isolation of Chlamydia pneumoniae clonal variants by a focus-forming assay.

Jens Gieffers, Robert J Belland, William Whitmire, Scot Ouellette, Deborah Crane, Matthias Maass, Gerald I Byrne, Harlan D Caldwell

Open access · greenAbstract read
In one paragraph

Article in Infection and immunity, 2002. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers.

0numbers the graph read from it
0cells of the map it votes in
11citing papers in PubMed
1.8field-weighted citation impact, top 16% 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

11 citing papers in PubMed, 28 citations in OpenAlex.

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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

8 authors at 4 institutions in 3 countries.

Jens GieffersLaboratory of Intracellular Parasites, National Institutes of Allergy and Infectious Disease, National Institutes of Health, Hamilton, Montana 59840, USA.
Robert J Belland
William Whitmire
Scot Ouellette
Deborah Crane
Matthias Maass
Gerald I Byrne
Harlan D Caldwell
Institute of Cellular and Intracellular Symbiosis · RUUniversity of Wisconsin–Madison · USInstitute of Medical Microbiology and Hygiene · DENational Institutes of Health · US

Funding

PATHOGENOMICS OF CHLAMYDIAL INFECTIONZ01AI000845 · NIAID · NIAID EXTRAMURAL ACTIVITIES · PI CALDWELL, HARLAN D · 1999 to 2008
$1.6M
CHLAMYDIA PNEUMONIAE AND MACROPHAGES IN ATHEROSCLEROSISR01AI042790 · NIAID · UNIVERSITY OF WISCONSIN MADISON · PI BYRNE, GERALD IRWIN · 1999 to 2003
$983k
NIAID NIH HHS AI42790NIAID NIH HHS R01 AI042790
6 · The paper itself

Abstract

Chlamydia pneumoniae is an obligate intracellular prokaryotic human pathogen that causes community-acquired respiratory infection and has been associated with atherosclerosis and cardiovascular disease. Unexpected results from genomic sequencing indicate that significant intrastrain polymorphism exists for some C. pneumoniae isolates. These polymorphisms could reflect genotypes with differing disease-causing characteristics. A definitive means to test this hypothesis is to obtain genetically homogeneous clonal populations of the pathogen and test them in models of infection and disease. To date, methods for cloning C. pneumoniae have not been reported. In this study, we describe the isolation of clonal variants with genetic differences in the tyrP locus from a polymorphic respiratory isolate, using a novel focus-forming assay. These results now allow investigations on the biology and pathogenesis of C. pneumoniae clonal genovars that could lead to new insights into the pathogenesis of this important human pathogen.

Indexed as

AnimalsBacteriological TechniquesBase SequenceCell LineChlamydophila InfectionsChlamydophila pneumoniaeChromosome MappingDNA, BacterialGenes, BacterialGenetic VariationHeLa CellsHumansMicePolymorphism, GeneticDNA, Bacterial

Identifiers

PMID12228314
PMCPMC128347
OpenAlexW2114366702

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.