Evidence map›Paper›PMID 25491670›Full record

ArticleTherapeutic delivery2014

Biodistribution of PLGA and PLGA/chitosan nanoparticles after repeat-dose oral delivery in F344 rats for 7 days.

Sara M Navarro, Caleb Darensbourg, Linda Cross, Rhett Stout, Diana Coulon, Carlos E Astete, Timothy Morgan, Cristina M Sabliov

Abstract readComparative Study
In one paragraph

Article in Therapeutic delivery, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers.

0numbers the graph read from it
0cells of the map it votes in
8citing papers in PubMed
1.2field-weighted citation impact, top 23% 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

8 citing papers in PubMed, 27 citations in OpenAlex.

  1. Review
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  7. Formulation andFrontiers in pharmacology · 2016
    Article
  8. 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

8 authors at 3 institutions in 1 country.

Sara M NavarroBiological & Agricultural Engineering Department, LSU & LSU AgCenter, Baton Rouge, LA, USA.
Caleb Darensbourg
Linda Cross
Rhett Stout
Diana Coulon
Carlos E Astete
Timothy Morgan
Cristina M Sabliov
Louisiana State University Agricultural Center · USLouisiana State University · USMississippi State University · US

Funding

MBRS IMSD Program at Louisiana State UniversityR25GM069743 · NIGMS · LOUISIANA STATE UNIV A&M COL BATON ROUGE · PI VICENTE, MARIA DA GRACA HENRIQUES · 2004 to 2017
$3.4M
NIGMS NIH HHS R25 GM069743
6 · The paper itself

Abstract

aimTo quantify in vivo the biodistribution of poly(lactic-co-glycolic) acid (PLGA) and PLGA/chitosan nanoparticles (PLGA/Chi NPs) and assess if the positive charge of chitosan significantly enhances nanoparticle absorption in the GI tract. MATERIAL &

methodsPLGA and PLGA/Chi NPs covalently linked to tetramethylrhodamine-5-isothiocyanate (TRITC) were orally administered to F344 rats for 7 days, and the biodistribution of fluorescent NPs was analyzed in different organs.

resultsThe highest amount of particles (% total dose/g) was detected for both treatments in the spleen, followed by intestine and kidney, and then by liver, lung, heart and brain, with no significant difference between PLGA and PLGA/Chi NPs.

conclusionOnly a small percentage of orally delivered NPs was detected in the analyzed organs. The positive charge conferred by chitosan was not sufficient to improve the absorption of the PLGA/Chi NPs over that of PLGA NPs.

Indexed as

Drug CarriersAdministration, OralAnimalsChemistry, PharmaceuticalChitosanDrug Administration ScheduleFluorescent DyesIntestinal AbsorptionLactic AcidMaleNanotechnologyPolyglycolic AcidPolylactic Acid-Polyglycolic Acid CopolymerRats, Inbred F344RhodaminesSurface PropertiesChitosanDrug CarriersFluorescent DyesLactic AcidPolyglycolic AcidPolylactic Acid-Polyglycolic Acid CopolymerRhodaminestetramethylrhodamine isothiocyanate

Identifiers

PMID25491670
PMCPMC4451574
OpenAlexW2086833803

What OpenQuestion holds

Textmetadata
LicenceTDM
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.