Evidence map›Paper›PMID 19682448›Full record

ArticleExperimental eye research2009

Electrically assisted delivery of macromolecules into the corneal epithelium.

Jinsong Hao, S Kevin Li, Chia-Yang Liu, Winston W Y Kao

Registry-linked trialOpen access · greenAbstract readEvaluation Study
In one paragraph

Article in Experimental eye research, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT02117999 (Randomized Clinical Trial Comparing Transepithelial Corneal Cross-linking Using Iontophoresis and Standard Corneal Cross-linking for the Treatment of Keratoconus), which is not on this map. Cited by 17 papers.

0numbers the graph read from it
0cells of the map it votes in
17citing 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.

NCT02117999 nacompletednot on this mapstarted 2014, after this paper: background citation

Randomized Clinical Trial Comparing Transepithelial Corneal Cross-linking Using Iontophoresis and Standard Corneal Cross-linking for the Treatment of Keratoconus

TypeinterventionalSponsorFondazione G.B. Bietti, IRCCSRan2014 to 2016Enrolled30ConditionsProgressive KeratoconusArmsCross-linking with iontophoresis, Standard corneal cross-linking
3 · Its place in the literature

Who cites it

17 citing papers in PubMed, 49 citations in OpenAlex.

  1. Review
  2. Review
  3. Article
  4. Review
  5. Article
  6. Article
  7. Article
  8. Article
  9. Article
  10. Article
  11. In vitro extraction of intra-corneal iron using reverse iontophoresis and vitamin C.Graefe's archive for clinical and experimental ophthalmology = Albrecht von Graefes Archiv fur klinische und experimentelle Ophthalmologie · 2014
    Article
  12. Review
  13. Article
  14. Article
  15. Gene therapy in the cornea: 2005--present.Progress in retinal and eye research · 2012
    Review
  16. Review
  17. Gene delivery to cornea.Brain research bulletin · 2010
    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

4 authors at 2 institutions in 1 country.

Jinsong HaoDivision of Pharmaceutical Sciences, College of Pharmacy, University of Cincinnati, 3225 Eden Ave, HPB 136, Cincinnati, OH 45267, USA.
S Kevin Li
Chia-Yang Liu
Winston W Y Kao
University of Cincinnati · USUniversity of Cincinnati Medical Center · US

Funding

Structure/Function Relationship of The Lumican GeneR01EY011845 · NEI · UNIVERSITY OF CINCINNATI · PI KAO, WINSTON W · 1999 to 2017
$5.2M
STRUCTURE AND FUNCTION OF CORNEAL KERATIN K12 GENER01EY010556 · NEI · UNIVERSITY OF CINCINNATI · PI KAO, WINSTON W · 1995 to 2008
$2.2M
Methods &Noninvasive PK Study to Improve IontophoresisR01EY015181 · NEI · UNIVERSITY OF UTAH · PI LI, KEVIN S. · 2005 to 2010
$1.3M
NEI NIH HHS EY010556NEI NIH HHS EY011845NEI NIH HHS EY015181NEI NIH HHS R01 EY010556NEI NIH HHS R01 EY011845NEI NIH HHS R01 EY015181
6 · The paper itself

Abstract

Electrically assisted delivery is noninvasive and has been investigated in a number of ocular drug delivery studies. The objectives of this study were to examine the feasibility of electrically assisted delivery of macromolecules such as small interfering RNA (siRNA) into the corneal epithelium, to optimize the iontophoresis and electroporation methods, and to study the mechanisms of corneal iontophoresis for macromolecules. Anodal and cathodal iontophoresis, electroporation and their combinations were the methods examined with mice in vivo. Cyanine 3 (Cy3)-labeled glyceraldehyde-3-phosphate dehydrogenase (GAPDH) siRNA and fluorescein isothiocyanate (FITC)-labeled dextran of different molecular weights (4-70 kDa) were the macromolecules studied. Microscopy and histology after cryostat sectioning were used to analyze and compare the delivery of the macromolecules to the cornea. Iontophoresis was effective in delivering siRNA and dextran up to 70 kDa into the cornea. The electroporation method studied was less effective than that of iontophoresis. Although both iontophoresis and electroporation alone can deliver the macromolecules into the cornea, these methods alone were not as effective as the combination of iontophoresis and electroporation (iontophoresis followed by electroporation). The significant enhancement of dextran delivery in anodal iontophoresis suggests that electroosmosis can be a significant flux-enhancing mechanism during corneal iontophoresis. These results illustrate the feasibility of electrically assisted delivery of macromolecules such as siRNA into the cornea.

Indexed as

AnimalsDextransDrug Delivery SystemsElectroporationEpithelium, CornealFeasibility StudiesGene Transfer TechniquesGlyceraldehyde-3-Phosphate DehydrogenasesIontophoresisMacromolecular SubstancesMaleMiceMice, Inbred C57BLRNA, Small InterferingDextransGlyceraldehyde-3-Phosphate DehydrogenasesMacromolecular SubstancesRNA, Small Interfering

Identifiers

PMID19682448
PMCPMC2823394
OpenAlexW1986303891

What OpenQuestion holds

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Read underepoch 390

Registered trials

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.