Evidence map›Paper›PMID 20086154›Full record

ArticleAntimicrobial agents and chemotherapy2010

Dry powder PA-824 aerosols for treatment of tuberculosis in guinea pigs.

Lucila Garcia-Contreras, Jean C Sung, Pavan Muttil, Danielle Padilla, Martin Telko, Jarod L Verberkmoes, Katharina J Elbert, Anthony J Hickey, David A Edwards

Open access · greenAbstract read
In one paragraph

Article in Antimicrobial agents and chemotherapy, 2010. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 26 papers.

0numbers the graph read from it
0cells of the map it votes in
26citing papers in PubMed
5.1field-weighted citation impact, top 5% 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

26 citing papers in PubMed, 74 citations in OpenAlex.

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    Article
  9. Engineered drug delivery devices to address Global Health challenges.Journal of controlled release : official journal of the Controlled Release Society · 2021
    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

9 authors at 2 institutions in 1 country.

Lucila Garcia-ContrerasUniversity of North Carolina School of Pharmacy, Chapel Hill, North Carolina 27599, USA.
Jean C Sung
Pavan Muttil
Danielle Padilla
Martin Telko
Jarod L Verberkmoes
Katharina J Elbert
Anthony J Hickey
David A Edwards
University of North Carolina at Chapel Hill · USHarvard University · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Novel treatments for multidrug-resistant tuberculosis (MDR-TB), extensively drug-resistant tuberculosis (XDR-TB), or latent TB are needed urgently. Recently, we reported the formulation and characterization of the nitroimidazo-oxazine PA-824 for efficient aerosol delivery as dry powder porous particles and the subsequent disposition in guinea pigs after pulmonary administration. The objective of the present study was to evaluate the effects of these PA-824 therapeutic aerosols on the extent of TB infection in the low-inoculum aerosol infection guinea pig model. Four weeks after infection by the pulmonary route, animals received daily treatment for 4 weeks of either a high or a low dose of PA-824 dry powder aerosol. Animals received PA-824 cyclodextrin/lecithin suspensions orally as positive controls, and those receiving placebo particles or no treatment were negative controls. The lungs and spleens of animals receiving the high dose of inhaled PA-824 particles exhibited a lower degree of inflammation (indicated by wet tissue weights), bacterial burden, and tissue damage (indicated by histopathology) than those of untreated or placebo animals. Treatment with oral PA-824 cyclodextrin/lecithin suspension resulted in a more significant reduction in the bacterial burden of lungs and spleen, consistent with a dose that was larger than inhaled doses (eight times the inhaled low dose and four times the inhaled high dose). However, histopathological analysis revealed that the extent of tissue damage was comparable in groups receiving the oral or either inhaled dose. The present studies indicate the potential use of PA-824 dry powder aerosols in the treatment of TB.

Indexed as

Administration, InhalationAdministration, OralAerosolsAnimalsAntitubercular AgentsChemistry, PharmaceuticalColony Count, MicrobialDisease Models, AnimalExtensively Drug-Resistant TuberculosisGuinea PigsHumansLatent TuberculosisLungMaleNitroimidazolesParticle SizeAerosolsAntitubercular AgentsNitroimidazolesPowderspretomanid

Identifiers

PMID20086154
PMCPMC2849359
OpenAlexW2106829237

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.