Evidence map›Paper›PMID 25530714›Full record

ArticleCancer cell international2014

Optimization of a therapeutic electromagnetic field (EMF) to retard breast cancer tumor growth and vascularity.

Ivan L Cameron, Marko S Markov, W Elaine Hardman

Open access · goldAbstract read
In one paragraph

Article in Cancer cell international, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers.

0numbers the graph read from it
0cells of the map it votes in
13citing papers in PubMed
2.1field-weighted citation impact, top 11% 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

13 citing papers in PubMed, 38 citations in OpenAlex.

  1. Review
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  3. Tumor suppressive effect of low-frequency repetitive transcranial magnetic stimulation on glioblastoma progression.Neurotherapeutics : the journal of the American Society for Experimental NeuroTherapeutics · 2025
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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

3 authors at 3 institutions in 1 country.

Ivan L CameronDepartment of Cellular and Structural Biology, University of Texas Health Science at San Antonio, 7703 Floyd Curl Drive, San Antonio, Texas 78229 USA.
Marko S MarkovResearch International, Williamsville, New York 14221 USA.
W Elaine HardmanDepartment of Biochemistry and Microbiology, Joan C. Edwards School of Medicine, Marshall University, 1600 Medical Center Dr., Huntington, 25755 West Virginia.
Marshall University · USThe University of Texas Health Science Center at San Antonio · USWilliams (United States) · US

Funding

Targeting transforming growth factor beta for cancer treatmentR01CA075253 · NCI · UNIVERSITY OF TEXAS HLTH SCIENCE CENTER · PI SUN, LUZHE · 1997 to 2011
$2.4M
NCI NIH HHS R01 CA075253
6 · The paper itself

Abstract

backgroundThis study provided additional data on the effects of a therapeutic electromagnetic field (EMF) device on growth and vascularization of murine 16/C mammary adenocarcinoma cells implanted in C3H/HeJ mice.

methodsThe therapeutic EMF device generated a defined 120 Hz semi sine wave pulse signal of variable intensity. Murine 16/C mammary adenocarcinoma tumor fragments were implanted subcutaneously between the scapulae of syngeneic C3H mice. Once the tumor grew to 100 mm(3), daily EMF treatments were started by placing the cage of mice within the EMF field. Treatment ranged from 10 to 20 milli-Tesla (mT) and was given for 3 to 80 minutes either once or twice a day for 12 days. Tumors were measured and volumes calculated each 3-4 days.

resultsTherapeutic EMF treatment significantly suppressed tumor growth in all 7 EMF treated groups. Exposure to 20mT for 10 minutes twice a day was the most effective tumor growth suppressor. The effect of EMF treatment on extent of tumor vascularization, necrosis and viable area was determined after euthanasia. The EMF reduced the vascular (CD31 immunohistochemically positive) volume fraction and increased the necrotic volume of the tumor. Treatment with 15 mT for 10 min/d gave the maximum anti-angiogenic effect. Lack of a significant correlation between tumor CD 31 positive area and tumor growth rate indicates a mechanism for suppression of tumor growth in addition to suppression of tumor vascularization.

conclusionIt is proposed that EMF therapy aimed at suppression of tumor growth and vascularization may prove a safe alternative for patients whether they are or are not candidates for conventional cancer therapy.

Indexed as

AngiogenesisBreast cancerElectromagnetic field (EMF)Endothelial cell marker (CD31)Immunohistochemical

Identifiers

PMID25530714
PMCPMC4272545
OpenAlexW2099587375

What OpenQuestion holds

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LicenceCC BY
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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.