Evidence map›Paper›PMID 21704704›Full record

ArticleEuropean journal of pharmaceutical sciences : official journal of the European Federation for Pharmaceutical Sciences2011

Engineering tenofovir loaded chitosan nanoparticles to maximize microbicide mucoadhesion.

Jianing Meng, Timothy F Sturgis, Bi-Botti C Youan

Abstract read
In one paragraph

Article in European journal of pharmaceutical sciences : official journal of the European Federation for Pharmaceutical Sciences, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 35 papers.

0numbers the graph read from it
0cells of the map it votes in
35citing papers in PubMed
6.6field-weighted citation impact, top 2% 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

35 citing papers in PubMed, 171 citations in OpenAlex.

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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

3 authors at 1 institution in 1 country.

Jianing MengLaboratory of Future Nanomedicines and Theoretical Chronopharmaceutics, Division of Pharmaceutical Sciences, University of Missouri-Kansas City, MO 64108, USA.
Timothy F Sturgis
Bi-Botti C Youan
University of Missouri–Kansas City · US

Funding

Microbicide Loaded Nanocarriers for Topical Delivery in HIV/AIDS PreventionR21AI083092 · NIAID · UNIVERSITY OF MISSOURI KANSAS CITY · PI YOUAN, BI-BOTTI CELESTIN · 2009 to 2010
$371k
NIAID NIH HHS R21 AI083092PHS HHS R21A1083092
6 · The paper itself

Abstract

The objective of this study was to engineer a model anti-HIV microbicide (tenofovir) loaded chitosan based nanoparticles (NPs). Box-Behnken design allowed to assess the influence of formulation variables on the size of NPs and drug encapsulation efficiency (EE%) that were analyzed by dynamic light scattering and UV spectroscopy, respectively. The effect of the NPs on vaginal epithelial cells and Lactobacillus crispatus viability and their mucoadhesion to porcine vaginal tissue were assessed by cytotoxicity assays and fluorimetry, respectively. In the optimal aqueous conditions, the EE% and NPs size were 5.83% and 207.97nm, respectively. With 50% (v/v) ethanol/water as alternative solvent, these two responses increased to 20% and 602 nm, respectively. Unlike small size (182nm) exhibiting burst release, drug release from medium (281 nm) and large (602 nm)-sized NPs fitted the Higuchi (r(2)=0.991) and first-order release (r(2)=0.999) models, respectively. These NPs were not cytotoxic to both the vaginal epithelial cell line and L. crispatus for 48h. When the diameter of the NPs decreased from 900 to 188 nm, the mucoadhesion increased from 6% to 12%. However, the combinatorial effect of EE% and percent mucoadhesion for larger size NPs was the highest. Overall, large-size, microbicide loaded chitosan NPs appeared to be promising nanomedicines for the prevention of HIV transmission.

Indexed as

AdenineAdhesivenessAnalysis of VarianceAnimalsAnti-HIV AgentsCell SurvivalChitosanDrug CarriersDrug CompoundingEpithelial CellsEpitheliumFemaleHIV InfectionsHumansIn Vitro TechniquesLactobacillusAdenineAnti-HIV AgentsChitosanDrug CarriersOrganophosphonatesTenofovir

Identifiers

PMID21704704
PMCPMC3375325
OpenAlexW2075432922

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.