Evidence map›Paper›PMID 23689726›Full record

ArticleAntimicrobial agents and chemotherapy2013

A mouse model of Acinetobacter baumannii-associated pneumonia using a clinically isolated hypervirulent strain.

Greg Harris, Rhonda Kuo Lee, Christopher K Lam, Gregory Kanzaki, Girishchandra B Patel, H Howard Xu, Wangxue Chen

Open access · bronzeAbstract read
In one paragraph

Article in Antimicrobial agents and chemotherapy, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 87 papers, 3 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
87citing papers in PubMed, 3 pooled it
2.1field-weighted citation impact, top 13% 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

87 citing papers in PubMed, 3 syntheses or guidelines pooled it, 136 citations in OpenAlex.

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  15. Gene dependence during mammalianMicrobial genomics · 2025
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  16. HypervirulentAntibiotics (Basel, Switzerland) · 2025
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  18. Recent advances in host models in studying virulence factors and pathogenesis ofFrontiers in cellular and infection microbiology · 2025
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  19. Nano-Emulsion Incorporating Squalene and MnInternational journal of nanomedicine · 2025
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27 more citing papers are in PubMed but not listed here.

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

7 authors at 2 institutions in 2 countries.

Greg HarrisVaccine Program, Human Health Therapeutics, National Research Council Canada, Ottawa, Ontario, Canada.
Rhonda Kuo Lee
Christopher K Lam
Gregory Kanzaki
Girishchandra B Patel
H Howard Xu
Wangxue Chen
National Research Council Canada · CACalifornia State University Los Angeles · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Acinetobacter baumannii is an important emerging pathogen in health care-acquired infections and is responsible for severe nosocomial and community-acquired pneumonia. Currently available mouse models of A. baumannii pneumonia show poor colonization with little to no extrapulmonary dissemination. Here, we describe a mouse model of A. baumannii pneumonia using a clinical isolate (LAC-4 strain) that reliably reproduces the most relevant features of human pulmonary A. baumannii infection and pathology. Using this model, we have shown that LAC-4 infection induced rapid bacterial replication in the lungs, significant extrapulmonary dissemination, and severe bacteremia by 24 h postintranasal inoculation. Infected mice showed severe bronchopneumonia and dilatation and inflammatory cell infiltration in the perivascular space. More significantly, 100% of C57BL/6 and BALB/c mice succumbed to 10(8) CFU of LAC-4 inoculation within 48 h. When this model was used to assess the efficacy of antimicrobials, all mice treated with imipenem and tigecycline survived a lethal intranasal challenge, with minimal clinical signs and body weight loss. Moreover, intranasal immunization of mice with formalin-fixed LAC-4 protected 40% of mice from a lethal (100× 100% lethal dose) intraperitoneal challenge. Thus, this model offers a reproducible acute course of A. baumannii pneumonia without requiring additional manipulation of host immune status, which will facilitate the development of therapeutic agents and vaccines against A. baumannii pneumonia in humans.

Indexed as

Disease Models, AnimalAcinetobacter baumanniiAcinetobacter InfectionsAnimalsAnti-Bacterial AgentsBacteremiaBacterial VaccinesBody WeightBronchopneumoniaFemaleImipenemImmunizationLungMaleMiceMice, Inbred BALB CAnti-Bacterial AgentsBacterial VaccinesImipenemMinocyclineTigecycline

Identifiers

PMID23689726
PMCPMC3719758
OpenAlexW2067379654

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.