Evidence map›Paper›PMID 29491707›Full record

ArticleInternational journal of nanomedicine2018

Functional intercalated nanocomposites with chitosan-glutathione-glycylsarcosine and layered double hydroxides for topical ocular drug delivery.

Tingting Xu, Xiaoyue Xu, Yan Gu, Lei Fang, Feng Cao

Open access · goldAbstract read
In one paragraph

Article in International journal of nanomedicine, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers.

0numbers the graph read from it
0cells of the map it votes in
10citing papers in PubMed
2.1field-weighted citation impact, top 14% 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

10 citing papers in PubMed, 43 citations in OpenAlex.

  1. Review
  2. Article
  3. Review
  4. Review
  5. Thiolated Nanoparticles for Biomedical Applications: Mimicking the Workhorses of Our Body.Advanced science (Weinheim, Baden-Wurttemberg, Germany) · 2022
    Review
  6. Review
  7. Article
  8. Exosomes as Actively Targeted Nanocarriers for Cancer Therapy.International journal of nanomedicine · 2020
    Review
  9. Recent progress in drug delivery.Acta pharmaceutica Sinica. B · 2019
    Review
  10. 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 at 2 institutions in 4 countries.

Tingting Xu *School of Pharmacy, China Pharmaceutical University.
Xiaoyue Xu *School of Pharmacy, China Pharmaceutical University.
Yan GuSchool of Pharmacy, China Pharmaceutical University.
Lei FangJiangsu Province Hi-Tech Key Laboratory for Bio-Medical Research and School of Chemistry and Chemical Engineering, Southeast University, Nanjing, China.
Feng CaoSchool of Pharmacy, China Pharmaceutical University.
China Pharmaceutical University · CNAcademic Degrees & Graduate Education · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundTo enhance ocular bioavailability, the traditional strategies have focused on prolonging precorneal retention and improving corneal permeability by nano-carriers with positive charge, thiolated polymer, absorption enhancer and so on. Glycylsarcosine (GS) as an active target ligand of the peptide tranpsporter-1 (PepT-1), could specific interact with the PepT-1 on the cornea and guide the nanoparticles to the treating site. PURPOSE: The objective of the study was to explore the active targeting intercalated nanocomposites based on chitosan-glutathione-glycylsarcosine (CG-GS) and layered double hydroxides (LDH) as novel carriers for the treatment of mid-posterior diseases. MATERIALS AND

methodsCG-GS-LDH intercalated nanocomposites were prepared by the coprecipitation hydrothermal method. In vivo precorneal retention study, ex vivo fluorescence images, in vivo experiment for distribution and irritation were studied in rabbits. The cytotoxicity and cellular uptake were studied in human corneal epithelial primary cells (HCEpiC).

resultsCG-GS-LDH nanocomposites were prepared successfully and characterized by FTIR and XRD. Experiments with rabbits showed longer precorneal retention and higher distribution of fluorescence probe/model drug. In vitro cytological study, CG-GS-LDH nanocomposites exhibited enhanced cellular uptake compared to pure drug solution. Furthermore, the investigation of cellular uptake mechanisms demonstrated that both the active transport by PepT-1 and clathrin-mediated endocytosis were involved in the internalization of CG-GS-LDH intercalated nanocomposites. An ocular irritation study and a cytotoxicity test indicated that these nanocomposites produced no significant irritant effects.

conclusionsThe active targeting intercalated nanocomposites could have great potential for topical ocular drug delivery due to the capacity for prolonging the retention on the ocular surface, enhancing the drug permeability through the cornea, and efficiently delivering the drug to the targeted site.

Indexed as

Administration, OphthalmicAnimalsBiological AvailabilityChitosanCorneaDipeptidesDrug Delivery SystemsEndocytosisFluorescenceGlutathioneHumansMaleNanocompositesOxazinesPermeabilityRabbitsChitosanDipeptidesGlutathioneglycylsarcosineOxazinespirenoxineactive targetingglycylsarcosineintercalated nanocompositeslayered double hydroxidespeptide transporter-1

Identifiers

PMID29491707
PMCPMC5815481
OpenAlexW2787896129

What OpenQuestion holds

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LicenceCC BY-NC
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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.