Evidence map›Paper›PMID 18321669›Full record

ArticleInternational journal of pharmaceutics2008

Chemical method to enhance transungual transport and iontophoresis efficiency.

Jinsong Hao, Kelly A Smith, S Kevin Li

Open access · greenAbstract read
In one paragraph

Article in International journal of pharmaceutics, 2008. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 19 papers.

0numbers the graph read from it
0cells of the map it votes in
19citing papers in PubMed
3.4field-weighted citation impact, top 8% 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

19 citing papers in PubMed, 60 citations in OpenAlex.

  1. Article
  2. Review
  3. Article
  4. Article
  5. Review
  6. Article
  7. Article
  8. Diffusion of uncharged solutes through human nail plate.Pharmaceutical development and technology · 2016
    Article
  9. Article
  10. Article
  11. Article
  12. Article
  13. Article
  14. Article
  15. Article
  16. Article
  17. Article
  18. Glycolic Acid peels for nail rejuvenation.Journal of cutaneous and aesthetic surgery
    Article
  19. Dermatologist Driven Aesthetic Nail Enhancement.Indian dermatology online journal
    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

3 authors at 1 institution in 1 country.

Jinsong HaoDivision of Pharmaceutical Sciences, College of Pharmacy, University of Cincinnati, Cincinnati, OH 45267, USA.
Kelly A Smith
S Kevin Li
University of Cincinnati Medical Center · US

Funding

Methods to Control Transdermal lontophoresis VariabilityR01GM063559 · NIGMS · UNIVERSITY OF UTAH · PI LI, KEVIN S. · 2003 to 2012
$2.0M
NIGMS NIH HHS GM063559NIGMS NIH HHS R01 GM063559
6 · The paper itself

Abstract

Transungual transport is hindered by the inherent small effective pore size of the nail even when it is fully hydrated. The objectives of this study were to determine the effects of chemical enhancers thioglycolic acid (TGA), glycolic acid (GA), and urea (UR) on transungual transport and iontophoresis efficiency. In vitro passive and iontophoretic transport experiments of model permeants mannitol (MA), UR, and tetraethylammonium (TEA) ion across the fully hydrated, enhancer-treated and untreated human nail plates were performed in phosphate-buffered saline. The transport experiments consisted of several stages, alternating between passive and anodal iontophoretic transport at 0.1mA. Nail water uptake experiments were conducted to determine the water content of the enhancer-treated nails. The effects of the enhancers on transungual electroosmosis were also evaluated. Nails treated with GA and UR did not show any transport enhancement. Treatment with TGA at 0.5M enhanced passive and iontophoretic transungual transport of MA, UR, and TEA. Increasing the TGA concentration to 1.8M did not further increase TEA iontophoresis efficiency. The effect of TGA on the nail plates was irreversible. The present study shows the possibility of using a chemical enhancer to reduce transport hindrance in the nail plate and thus enhance passive and iontophoretic transungual transport.

Indexed as

AgedAged, 80 and overDiffusionElectroosmosisExcipientsHumansHumidityIn Vitro TechniquesIontophoresisMaleMannitolMiddle AgedMolecular WeightNailsTetraethylammonium CompoundsExcipientsMannitolTetraethylammonium Compounds

Identifiers

PMID18321669
PMCPMC2603175
OpenAlexW2023574249

What OpenQuestion holds

Textmetadata
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.