Evidence map›Paper›PMID 15908349›Full record

ArticleInfection and immunity2005

Changes in lipopolysaccharide O antigen distinguish acute versus chronic Leptospira interrogans infections.

Jarlath E Nally, Emilie Chow, Michael C Fishbein, David R Blanco, Michael A Lovett

Open access · greenAbstract read
In one paragraph

Article in Infection and immunity, 2005. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 48 papers.

0numbers the graph read from it
0cells of the map it votes in
48citing papers in PubMed
4.7field-weighted citation impact, top 4% 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

48 citing papers in PubMed, 114 citations in OpenAlex.

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  17. Continuous Excretion ofThe American journal of tropical medicine and hygiene · 2017
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  18. Pathways to zoonotic spillover.Nature reviews. Microbiology · 2017
    Review
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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

5 authors at 2 institutions in 1 country.

Jarlath E NallyDepartment of Medicine, 37-121 CHS, Division of Infectious Diseases, University of California-Los Angeles, 10833 Le Conte Avenue, Los Angeles, CA 90095, USA. jnally@mednet.ucla.edu
Emilie Chow
Michael C Fishbein
David R Blanco
Michael A Lovett
Office of Infectious Diseases · USUniversity of California, Los Angeles · US

Funding

Proteomic studies of pathogenic LeptospiraF32AI055235 · NIAID · UNIVERSITY OF CALIFORNIA LOS ANGELES · PI NALLY, JARLATH E · 2003 to 2004
$89k
NIAID NIH HHS AI 055235NIAID NIH HHS F32 AI055235
6 · The paper itself

Abstract

Leptospirosis is the most geographically widespread zoonotic disease in the world. A severe pulmonary form of leptospirosis (SPFL) is being recognized with increased frequency. We have reported that human SPFL isolates of Leptospira cause acute lethal infection with prominent pulmonary hemorrhage in guinea pigs. We have found that the same SPFL strains cause asymptomatic infection and chronic renal shedding in rats, where infection is restricted to the renal tubules. To address the antigenic composition of host tissue-derived Leptospira (HTL), motile leptospires were purified from guinea pig liver by centrifugation on Percoll density gradients and compared to Percoll-purified in vitro-cultivated Leptospira (IVCL). The lipopolysaccharide O antigen (Oag) content of guinea pig liver-derived HTL was markedly reduced compared to that of IVCL, as demonstrated both by immunoblotting with a monoclonal antibody that was serovar specific for Oag and by periodate-silver staining. Confocal microscopy of HTL in guinea pig liver and kidney with the Oag-specific monoclonal antibody provided further evidence that diminution of the Oag content occurred in situ during lethal infection. In contrast, the Oag content of HTL in chronically infected rat renal tubules was indistinguishable from that of IVCL. These findings suggest that there may be regulation of Oag synthesis by Leptospira specific to the animal host infected. The hypothesis that the Oag content is related to whether lethal infection or chronic renal tubular colonization occurs remains to be tested.

Indexed as

Leptospira interrogansAcute DiseaseAnimalsChronic DiseaseGuinea PigsKidneyLeptospirosisLipopolysaccharidesLiverMaleMicroscopy, ConfocalO AntigensRatsRats, Sprague-DawleyLipopolysaccharidesO Antigens

Identifiers

PMID15908349
PMCPMC1111870
OpenAlexW2109324208

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.