Evidence map›Paper›PMID 29750034›Full record

ArticleInternational journal of nanomedicine2018

Physiologically based pharmacokinetic modeling of nanoceria systemic distribution in rats suggests dose- and route-dependent biokinetics.

Ulrika Carlander, Tshepo Paulsen Moto, Anteneh Assefa Desalegn, Robert A Yokel, Gunnar Johanson

Abstract 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 18 papers.

0numbers the graph read from it
0cells of the map it votes in
18citing 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

18 citing papers in PubMed.

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  5. Effect of cerium oxide on iron metabolism in mice.Journal of clinical biochemistry and nutrition · 2024
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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

5 authors.

Ulrika CarlanderUnit of Work Environment Toxicology, Institute of Environmental Medicine, Karolinska Institutet, Solna, Sweden.
Tshepo Paulsen MotoFaculty of Health Sciences, School of Health Systems and Public Health, University of Pretoria, Pretoria, South Africa.
Anteneh Assefa DesalegnUnit of Work Environment Toxicology, Institute of Environmental Medicine, Karolinska Institutet, Solna, Sweden.
Robert A YokelDepartment of Pharmaceutical Sciences, University of Kentucky, Lexington, KY, USA.
Gunnar JohansonUnit of Work Environment Toxicology, Institute of Environmental Medicine, Karolinska Institutet, Solna, Sweden.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundCerium dioxide nanoparticles (nanoceria) are increasingly being used in a variety of products as catalysts, coatings, and polishing agents. Furthermore, their antioxidant properties make nanoceria potential candidates for biomedical applications. To predict and avoid toxicity, information about their biokinetics is essential. A useful tool to explore such associations between exposure and internal target dose is physiologically based pharmacokinetic (PBPK) modeling. The aim of this study was to test the appropriateness of our previously published PBPK model developed for intravenous (IV) administration when applied to various sizes of nanoceria and to exposure routes relevant for humans.

methodsExperimental biokinetic data on nanoceria (obtained from various exposure routes, sizes, coatings, doses, and tissues sampled) in rats were collected from the literature and also obtained from the researchers. The PBPK model was first calibrated and validated against IV data for 30 nm citrate coated ceria and then recalibrated for 5 nm ceria. Finally, the model was modified and tested against inhalation, intratracheal (IT) instillation, and oral nanoceria data.

resultsThe PBPK model adequately described nanoceria time courses in various tissues for 5 nm ceria given IV. The time courses of 30 nm ceria were reasonably well predicted for liver and spleen, whereas the biokinetics in other tissues were not well captured. For the inhalation, IT instillation, and oral exposure routes, re-optimization was difficult due to low absorption and, hence, low and variable nanoceria tissue levels. Moreover, the nanoceria properties and exposure conditions varied widely among the inhalation, IT instillation, and oral studies, making it difficult to assess the importance of different factors.

conclusionOverall, our modeling efforts suggest that nanoceria biokinetics depend largely on the exposure route and dose.

Indexed as

Administration, InhalationAdministration, OralAnimalsCalibrationCeriumHumansLiverModels, BiologicalNanoparticlesRats, Sprague-DawleySpleenTissue Distributionceric oxideCeriumbiodistributioncerium dioxideinhalationinstillationintravenousoral

Identifiers

PMID29750034
PMCPMC5936012

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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.