Evidence map›Paper›PMID 25411782›Full record

ArticlePLoS neglected tropical diseases2014

Kinetics of Leptospira interrogans infection in hamsters after intradermal and subcutaneous challenge.

Mariana L Coutinho, James Matsunaga, Long-Chieh Wang, Alejandro de la Peña Moctezuma, Michael S Lewis, Jane T Babbitt, Jose Antonio G Aleixo, David A Haake

Open access · goldAbstract read
In one paragraph

Article in PLoS neglected tropical diseases, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 31 papers.

0numbers the graph read from it
0cells of the map it votes in
31citing papers in PubMed
3.4field-weighted citation impact, top 8% 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

31 citing papers in PubMed, 54 citations in OpenAlex.

  1. Transposon Sequencing in Leptospira interrogans.Methods in molecular biology (Clifton, N.J.) · 2026
    Article
  2. Review
  3. Article
  4. Review
  5. Article
  6. Article
  7. IL-10 Deficiency Protects Hamsters fromInfection and immunity · 2022
    Article
  8. Article
  9. Hematogenous dissemination of pathogenic and non-pathogenicFrontiers in cellular and infection microbiology · 2022
    Article
  10. Review
  11. Vaccination WithFrontiers in cellular and infection microbiology · 2022
    Article
  12. Article
  13. Article
  14. Article
  15. Article
  16. Review
  17. The preventable efficacy of β-glucan against leptospirosis.PLoS neglected tropical diseases · 2019
    Article
  18. ThreeFrontiers in microbiology · 2019
    Article
  19. Article
  20. 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

8 authors at 4 institutions in 3 countries.

Mariana L CoutinhoVeterans Affairs Greater Los Angeles Healthcare System, Los Angeles, California, United States of America; Centro de Desenvolvimento Tecnologico, Universidade Federal de Pelotas, Pelotas, Brasil; Faculdade de Veterinária, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brasil.
James MatsunagaVeterans Affairs Greater Los Angeles Healthcare System, Los Angeles, California, United States of America; Department of Medicine, David Geffen School of Medicine at UCLA, Los Angeles, California, United States of America.
Long-Chieh WangVeterans Affairs Greater Los Angeles Healthcare System, Los Angeles, California, United States of America.
Alejandro de la Peña MoctezumaCEIEPAA Facultad de Medicina Veterinaria y Zootecnia, Universidad Nacional Autónoma de México, Tequisquiapan, Querétaro, México.
Michael S LewisVeterans Affairs Greater Los Angeles Healthcare System, Los Angeles, California, United States of America.
Jane T BabbittVeterans Affairs Greater Los Angeles Healthcare System, Los Angeles, California, United States of America; Department of Medicine, David Geffen School of Medicine at UCLA, Los Angeles, California, United States of America.
Jose Antonio G AleixoCentro de Desenvolvimento Tecnologico, Universidade Federal de Pelotas, Pelotas, Brasil.
David A HaakeVeterans Affairs Greater Los Angeles Healthcare System, Los Angeles, California, United States of America; Department of Medicine, David Geffen School of Medicine at UCLA, Los Angeles, California, United States of America; Department of Urology, David Geffen School of Medicine at UCLA, Los Angeles, California, United States of America; Departments of Microbiology, Immunology and Molecular Genetics, UCLA, Los Angeles, California, United States of America.
University of California, Los Angeles · USUniversidade Federal de Pelotas · BRVA Greater Los Angeles Healthcare System · USUniversidad Nacional Autónoma de México · MX

Funding

Outer Membrane Proteins of Pathogenic Leptospira SpeciesR01AI034431 · NIAID · BRENTWOOD BIOMEDICAL RESEARCH INSTITUTE · PI GOMES-SOLECKI, MARIA, HAAKE, DAVID A · 2003 to 2015
$4.1M
The Leptospiral Outer Membrane Proteome & ImmunityI01BX002003 · VA · VA GREATER LOS ANGELES HEALTHCARE SYSTEM · PI MATSUNAGA, JAMES · 2014 to 2022
–
BLRD VA I01 BX000119BLRD VA I01 BX002003NIAID NIH HHS R01 AI034431
6 · The paper itself

Abstract

backgroundLeptospirosis is a zoonosis caused by highly motile, helically shaped bacteria that penetrate the skin and mucous membranes through lesions or abrasions, and rapidly disseminate throughout the body. Although the intraperitoneal route of infection is widely used to experimentally inoculate hamsters, this challenge route does not represent a natural route of infection. METHODOLOGY/PRINCIPAL

findingsHere we describe the kinetics of disease and infection in hamster model of leptospirosis after subcutaneous and intradermal inoculation of Leptospira interrogans serovar Copenhageni, strain Fiocruz L1-130. Histopathologic changes in and around the kidney, including glomerular and tubular damage and interstitial inflammatory changes, began on day 5, and preceded deterioration in renal function as measured by serum creatinine. Weight loss, hemoconcentration, increased absolute neutrophil counts (ANC) in the blood and hepatic dysfunction were first noted on day 6. Vascular endothelial growth factor, a serum marker of sepsis severity, became elevated during the later stages of infection. The burden of infection, as measured by quantitative PCR, was highest in the kidney and peaked on day 5 after intradermal challenge and on day 6 after subcutaneous challenge. Compared to subcutaneous challenge, intradermal challenge resulted in a lower burden of infection in both the kidney and liver on day 6, lower ANC and less weight loss on day 7. CONCLUSIONS/SIGNIFICANCE: The intradermal and subcutaneous challenge routes result in significant differences in the kinetics of dissemination and disease after challenge with L. interrogans serovar Copenhageni strain Fiocruz L1-130 at an experimental dose of 2×106 leptospires. These results provide new information regarding infection kinetics in the hamster model of leptospirosis.

Indexed as

Analysis of VarianceAnimalsAntibodies, BacterialCricetinaeDisease Models, AnimalFemaleInjections, SubcutaneousKidneyLeptospira interrogansLeptospirosisAntibodies, Bacterial

Identifiers

PMID25411782
PMCPMC4239013
OpenAlexW1986163501

What OpenQuestion holds

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Registered trials

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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.