Evidence map›Paper›PMID 18581402›Full record

ArticleMagnetic resonance in medicine2008

MR tracking of transplanted cells with "positive contrast" using manganese oxide nanoparticles.

Assaf A Gilad, Piotr Walczak, Michael T McMahon, Hyon Bin Na, Jung Hee Lee, Kwangjin An, Taegwhan Hyeon, Peter C M van Zijl, Jeff W M Bulte

Abstract readComparative Study
In one paragraph

Article in Magnetic resonance in medicine, 2008. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 65 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
65citing papers in PubMed, 1 pooled it
–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

65 citing papers in PubMed, 1 synthesis or guideline pooled it.

  1. Pooled it
  2. Article
  3. Article
  4. Review
  5. Article
  6. A primer onFrontiers in medicine · 2023
    Review
  7. Review
  8. Article
  9. Rapid Magneto-Sonoporation of Adipose-Derived Cells.Materials (Basel, Switzerland) · 2021
    Article
  10. Review
  11. New Vision for Visual Prostheses.Frontiers in neuroscience · 2020
    Review
  12. Article
  13. Review
  14. Functional nanoparticles for magnetic resonance imaging.Wiley interdisciplinary reviews. Nanomedicine and nanobiotechnology · 2016
    Review
  15. Article
  16. Article
  17. Article
  18. Article
  19. Article
  20. Nanoparticles and clinically applicable cell tracking.The British journal of radiology · 2015
    Review

5 more citing papers are in PubMed but not listed here.

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

9 authors.

Assaf A GiladRussell H. Morgan Department of Radiology, Division of MR Research, The Johns Hopkins University School of Medicine, 720 Rutland Avenue, Baltimore, MD 21205, USA.
Piotr Walczak
Michael T McMahon
Hyon Bin Na
Jung Hee Lee
Kwangjin An
Taegwhan Hyeon
Peter C M van Zijl
Jeff W M Bulte

Funding

MR Tracking of Magnetically Labeled Stem Cells in CNSR01NS045062 · NINDS · JOHNS HOPKINS UNIVERSITY · PI BULTE, JEFF W. · 2003 to 2013
$4.4M
Multi-Color Exchange Transfer Imaging of Drug Delivery NanocarriersR01EB015031 · NIBIB · HUGO W. MOSER RES INST KENNEDY KRIEGER · PI MCMAHON, MICHAEL T · 2011 to 2014
$2.4M
Developing a CEST Reporter Gene (RMI)R21EB005252 · NIBIB · JOHNS HOPKINS UNIVERSITY · PI BULTE, JEFF W. · 2005 to 2008
$1.4M
Developing New Multicolor Polypeptide MR Contrast Agents for Stem Cell TrackingK01EB006394 · NIBIB · HUGO W. MOSER RES INST KENNEDY KRIEGER · PI MCMAHON, MICHAEL T · 2006 to 2010
$619k
NIBIB NIH HHS K01 EB 006394NIBIB NIH HHS K01 EB006394NIBIB NIH HHS R01 EB015031NIBIB NIH HHS R21 EB 005252NIBIB NIH HHS R21 EB005252NINDS NIH HHS R01 NS 045062NINDS NIH HHS R01 NS045062
6 · The paper itself

Abstract

Rat glioma cells were labeled using electroporation with either manganese oxide (MnO) or superparamagnetic iron oxide (SPIO) nanoparticles. The viability and proliferation of SPIO-labeled cells (1.9 mg Fe/ml) or cells electroporated with a low dose of MnO (100 microg Mn/ml) was not significantly different from unlabeled cells; a higher MnO dose (785 microg Mn/ml) was found to be toxic. The cellular ion content was 0.1-0.3 pg Mn/cell and 4.4 pg Fe/cell, respectively, with cellular relaxivities of 2.5-4.8 s(-1) (R(1)) and 45-84 s(-1) (R(2)) for MnO-labeled cells. Labeled cells (SPIO and low-dose MnO) were each transplanted in contralateral brain hemispheres of rats and imaged in vivo at 9.4T. While SPIO-labeled cells produced a strong "negative contrast" due to the increase in R(2), MnO-labeled cells produced "positive contrast" with an increased R(1). Simultaneous imaging of both transplants with opposite contrast offers a method for MR "double labeling" of different cell populations.

Indexed as

Cell TransplantationContrast MediaManganese CompoundsMetal NanoparticlesOxidesAnimalsElectroporationFerric CompoundsGliomaMagnetic Resonance ImagingRatsRats, Inbred F344Tumor Cells, CulturedContrast MediaFerric Compoundsferric oxideManganese Compoundsmanganese oxideOxides

Identifiers

PMID18581402
PMCPMC2575033

What OpenQuestion holds

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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.