Evidence map›Paper›PMID 23811290›Full record

Trial reportNanomedicine : nanotechnology, biology, and medicine2014

In vivo human time-exposure study of orally dosed commercial silver nanoparticles.

Mark A Munger, Przemyslaw Radwanski, Greg C Hadlock, Greg Stoddard, Akram Shaaban, Jonathan Falconer, David W Grainger, Cassandra E Deering-Rice

Open access · greenAbstract readRandomized Controlled Trial
In one paragraph

Trial report in Nanomedicine : nanotechnology, biology, and medicine, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 60 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
60citing papers in PubMed, 1 pooled it
7.7field-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

60 citing papers in PubMed, 1 synthesis or guideline pooled it, 206 citations in OpenAlex.

  1. Pooled it
  2. Review
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  6. Article
  7. Article
  8. Clinical translation and landscape of silver nanoparticles.Drug delivery and translational research · 2025
    Review
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  11. Review
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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

8 authors at 1 institution in 1 country.

Mark A MungerDepartment of Pharmacotherapy, University of Utah, Salt Lake City, UT, USA; Department of Internal Medicine, University of Utah, Salt Lake City, UT, USA. Electronic address: mmunger@hsc.utah.edu.
Przemyslaw RadwanskiDepartment of Pharmacology and Toxicology, University of Utah, Salt Lake City, UT, USA.
Greg C HadlockDepartment of Pharmacology and Toxicology, University of Utah, Salt Lake City, UT, USA.
Greg StoddardDepartment of Internal Medicine, University of Utah, Salt Lake City, UT, USA.
Akram ShaabanDepartment of Radiology, University of Utah, Salt Lake City, UT, USA.
Jonathan FalconerDepartment of Pharmaceutics and Pharmaceutical Chemistry, University of Utah, Salt Lake City, UT, USA.
David W GraingerDepartment of Pharmaceutics and Pharmaceutical Chemistry, University of Utah, Salt Lake City, UT, USA.
Cassandra E Deering-RiceDepartment of Pharmacology and Toxicology, University of Utah, Salt Lake City, UT, USA.
University of Utah · US

Funding

UNIVERSITY OF UTAH CENTER FOR CLINICAL AND TRANSLATIONAL SCIENCE-UL1: BPCAUL1RR025764 · NCRR · UNIVERSITY OF UTAH · PI MCCLAIN, DONALD A. · 2008 to 2011
$19.4M
NCRR NIH HHS UL1 RR025764NCRR NIH HHS UL1RR025764
6 · The paper itself

Abstract

Human biodistribution, bioprocessing and possible toxicity of nanoscale silver receive increasing health assessment. We prospectively studied commercial 10- and 32-ppm nanoscale silver particle solutions in a single-blind, controlled, cross-over, intent-to-treat, design. Healthy subjects (n=60) underwent metabolic, blood counts, urinalysis, sputum induction, and chest and abdomen magnetic resonance imaging. Silver serum and urine content were determined. No clinically important changes in metabolic, hematologic, or urinalysis measures were identified. No morphological changes were detected in the lungs, heart or abdominal organs. No significant changes were noted in pulmonary reactive oxygen species or pro-inflammatory cytokine generation. In vivo oral exposure to these commercial nanoscale silver particle solutions does not prompt clinically important changes in human metabolic, hematologic, urine, physical findings or imaging morphology. Further study of increasing time exposure and dosing of silver nanoparticulate silver, and observation of additional organ systems are warranted to assert human toxicity thresholds. FROM THE CLINICAL EDITOR: In this study, the effects of commercially available nanoparticles were studied in healthy volunteers, concluding no detectable toxicity with the utilized comprehensive assays and tests. As the authors rightfully state, further studies are definitely warranted. Studies like this are much needed for the more widespread application of nanomedicine.

Indexed as

AdultAgedBlood Cell CountFemaleHeartHumansLungMagnetic Resonance ImagingMaleMetal NanoparticlesMiddle AgedRadiography, ThoracicReactive Oxygen SpeciesSilverSputumUrinalysisReactive Oxygen SpeciesSilverBiological activity nanoparticlesNanotechnologyNanotoxicology oral ingestionSafety research

Identifiers

PMID23811290
PMCPMC3877176
OpenAlexW1985003639

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.