Evidence map›Paper›PMID 11683246›Full record

ArticlePharmaceutical research2001

Respirable PLGA microspheres containing rifampicin for the treatment of tuberculosis: screening in an infectious disease model.

S Suarez, P O'Hara, M Kazantseva, C E Newcomer, R Hopfer, D N McMurray, A J Hickey

Abstract read
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In one paragraph

Article in Pharmaceutical research, 2001. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 41 papers.

0numbers the graph read from it
0cells of the map it votes in
41citing papers in PubMed
1.6field-weighted citation impact, top 18% 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

41 citing papers in PubMed, 158 citations in OpenAlex.

  1. Article
  2. Article
  3. Outstanding Contributions to Aerosol Pulmonary Drug Delivery.Kona : powder science and technology in Japan · 2026
    Article
  4. Article
  5. Review
  6. Review
  7. Article
  8. Engineered drug delivery devices to address Global Health challenges.Journal of controlled release : official journal of the Controlled Release Society · 2021
    Review
  9. Review
  10. Article
  11. Review
  12. Article
  13. Article
  14. Article
  15. Article
  16. Article
  17. Article
  18. Article
  19. Targeting inhaled therapy beyond the lungs.Respiration; international review of thoracic diseases · 2014
    Review
  20. Review
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 1 country.

S SuarezSchool of Pharmacy, University of North Carolina, Chapel Hill 27599, USA.
P O'Hara
M Kazantseva
C E Newcomer
R Hopfer
D N McMurray
A J Hickey
University of North Carolina at Chapel Hill · USTexas A&M University System · US

Funding

AEROSOL FOR ANTITUBERCULAR DRUG DELIVERYR01HL055789 · NHLBI · UNIVERSITY OF NORTH CAROLINA CHAPEL HILL · PI HICKEY, ANTHONY JAMES · 1995 to 1999
–
NHLBI NIH HHS HL 55789
6 · The paper itself

Abstract

purposeTargeted delivery of rifampicin loaded microspheres to the alveolar macrophage, the host cell for Mycobacterium tuberculosis (MTB), may be an effective targeted approach to pulmonary tuberculosis therapy. A guinea pig infection model has been adopted as a post-treatment screening method for antimicrobial effect. Insufflation and nebulization methods of drug delivery were evaluated.

methodsRifampicin alone (RIF, 1.03-1.72 mg/kg), within poly(lactide-co-glycolide) microspheres (R-PLGA, equivalent to 1.03-1.72 mg/kg) or polymer microparticles alone (PLGA) were administered by insufflation or nebulization, 24 h before bacterial aerosol exposure. Animals were infected with an aerosol containing a small number (2 x 10(5) cfu/mL) of virulent H37Rv strain of MTB. Lung and spleen tissue samples were collected 28 days after infection for quantitative bacteriology and histopathological analysis.

resultsThere was a dose-effect relationship between insufflated R-PLGA and burden of bacteria in the lungs. In addition, guinea pigs treated with R-PLGA had a significantly smaller number of viable bacteria (P < 0.05), reduced inflammation and lung damage than lactose or saline control, PLGA or RIF treated animals.

conclusionsThese studies indicate the potential of R-PLGA, delivered by insufflation or nebulization directly to the lungs, to affect the early development of pulmonary TB.

Indexed as

Drug Delivery SystemsAdministration, InhalationAerosolsAnimalsAntibiotics, AntitubercularColony Count, MicrobialDose-Response Relationship, DrugDrug CarriersDrug CompoundingDrug Evaluation, PreclinicalGuinea PigsIndicators and ReagentsLactic AcidLungMacrophagesMaleAerosolsAntibiotics, AntitubercularDrug CarriersIndicators and ReagentsLactic AcidPolyglycolic AcidPolylactic Acid-Polyglycolic Acid CopolymerPolymersRifampin

Identifiers

PMID11683246
OpenAlexW1484825513

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.