Evidence map›Paper›PMID 24405490›Full record

ArticleNanomedicine (London, England)2014

Comparative biophysical properties of tenofovir-loaded, thiolated and nonthiolated chitosan nanoparticles intended for HIV prevention.

Jianing Meng, Tao Zhang, Vivek Agrahari, Miezan J Ezoulin, Bi-Botti C Youan

Abstract readComparative Study
In one paragraph

Article in Nanomedicine (London, England), 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 20 papers.

0numbers the graph read from it
0cells of the map it votes in
20citing papers in PubMed
–field-weighted citation impact
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

20 citing papers in PubMed.

  1. Review
  2. Review
  3. Review
  4. Review
  5. Review
  6. Chitosan-Based Nanoparticles Against Viral Infections.Frontiers in cellular and infection microbiology · 2021
    Review
  7. Review
  8. Article
  9. Article
  10. Advances in Targeted Drug Delivery Approaches for the Central Nervous System Tumors: The Inspiration of Nanobiotechnology.Journal of neuroimmune pharmacology : the official journal of the Society on NeuroImmune Pharmacology · 2017
    Review
  11. Nanoparticle Encapsulation for Antiretroviral Pre-Exposure Prophylaxis.Journal of nanotechnology and materials science · 2017
    Article
  12. Review
  13. Article
  14. Article
  15. Article
  16. Article
  17. Review
  18. Review
  19. Article
  20. Article
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

5 authors.

Jianing MengLaboratory of Future Nanomedicines & Theoretical Chronopharmaceutics, Division of Pharmaceutical Sciences, University of Missouri, Kansas City, MO 64108, USA.
Tao Zhang
Vivek Agrahari
Miezan J Ezoulin
Bi-Botti C Youan

Funding

Prevention of HIV/AIDS by Stimuli-Sensitive Nanomedicine for Microbicide DeliveryR01AI087304 · NIAID · UNIVERSITY OF MISSOURI KANSAS CITY · PI YOUAN, BI-BOTTI CELESTIN · 2011 to 2014
$1.4M
NIAID NIH HHS R01 AI087304PHS HHS R01A1087304
6 · The paper itself

Abstract

aimThis study is designed to test the hypothesis that tenofovir-loaded (an anti-HIV microbicide) chitosan-thioglycolic acid-conjugated (CS-TGA) nanoparticles (NPs) exhibit superior biophysical properties for mucoadhesion compared with those of native CS NPs. MATERIALS &

methodsThe NPs are prepared by ionotropic gelation. The particle mean diameter, encapsulation efficiency and release profile are analyzed by dynamic light scattering and UV spectroscopy, respectively. The cytotoxicity, cellular uptake and uptake mechanism are assessed on VK2/E6E7 and End1/E6E7 cell lines by colorimetry/fluorimetry, and percentage mucoadhesion is assessed using porcine vaginal tissue.

resultsThe mean diameter of the optimal NP formulations ranges from 240 to 252 nm, with a maximal encapsulation efficiency of 22.60%. Tenofovir release from CS and CS-TGA NPs follows first-order and Higuchi models, respectively. Both NPs are noncytotoxic in 48 h. The cellular uptake, which is time dependent, mainly occurs via the caveolin-mediated pathway. The percentage of mucoadhesion of CS-TGA NPs is fivefold higher than that of CS NPs, and reached up to 65% after 2 h.

conclusionCollectively, CS-TGA NPs exhibit superior biophysical properties and can potentially maximize the retention time of a topical microbicide, such as tenofovir, intended for the prevention of HIV transmission.

Indexed as

AdenineAnimalsAnti-HIV AgentsCaveolinsCell LineChitosanDrug Delivery SystemsFluorometryHIV InfectionsHumansHydrogen-Ion ConcentrationMicroscopy, Electron, ScanningMicroscopy, Electron, TransmissionNanomedicineNanoparticlesOrganophosphonates2-mercaptoacetateAdenineAnti-HIV AgentsCaveolinsChitosanOrganophosphonatesSulfhydryl CompoundsTenofovirThioglycolatesHIV preventionmucoadhesionnanoparticletenofovirthiolated chitosanvaginal drug delivery

Identifiers

PMID24405490
PMCPMC4278848

What OpenQuestion holds

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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.