Evidence map›Paper›PMID 24595264›Full record

ArticlePloS one2014

Extremely low-frequency electromagnetic fields affect transcript levels of neuronal differentiation-related genes in embryonic neural stem cells.

Qinlong Ma, Ping Deng, Gang Zhu, Chuan Liu, Lei Zhang, Zhou Zhou, Xue Luo, Min Li, Min Zhong, Zhengping Yu and 2 more

Open access · goldAbstract read
In one paragraph

Article in PloS one, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 22 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
22citing papers in PubMed, 1 pooled it
9.5field-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

22 citing papers in PubMed, 1 synthesis or guideline pooled it, 52 citations in OpenAlex.

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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

12 authors at 1 institution in 1 country.

Qinlong MaDepartment of Occupational Health, Faculty of Preventive Medicine, Third Military Medical University, Chongqing, People's Republic of China.
Ping DengDepartment of Occupational Health, Faculty of Preventive Medicine, Third Military Medical University, Chongqing, People's Republic of China.
Gang ZhuDepartment of Occupational Health, Faculty of Preventive Medicine, Third Military Medical University, Chongqing, People's Republic of China.
Chuan LiuDepartment of Occupational Health, Faculty of Preventive Medicine, Third Military Medical University, Chongqing, People's Republic of China.
Lei ZhangDepartment of Occupational Health, Faculty of Preventive Medicine, Third Military Medical University, Chongqing, People's Republic of China.
Zhou ZhouDepartment of Occupational Health, Faculty of Preventive Medicine, Third Military Medical University, Chongqing, People's Republic of China.
Xue LuoDepartment of Occupational Health, Faculty of Preventive Medicine, Third Military Medical University, Chongqing, People's Republic of China.
Min LiDepartment of Occupational Health, Faculty of Preventive Medicine, Third Military Medical University, Chongqing, People's Republic of China.
Min ZhongDepartment of Occupational Health, Faculty of Preventive Medicine, Third Military Medical University, Chongqing, People's Republic of China.
Zhengping YuDepartment of Occupational Health, Faculty of Preventive Medicine, Third Military Medical University, Chongqing, People's Republic of China.
Chunhai ChenDepartment of Occupational Health, Faculty of Preventive Medicine, Third Military Medical University, Chongqing, People's Republic of China.
Yanwen ZhangDepartment of Occupational Health, Faculty of Preventive Medicine, Third Military Medical University, Chongqing, People's Republic of China.
Army Medical University · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Previous studies have reported that extremely low-frequency electromagnetic fields (ELF-EMF) can affect the processes of brain development, but the underlying mechanism is largely unknown. The proliferation and differentiation of embryonic neural stem cells (eNSCs) is essential for brain development during the gestation period. To date, there is no report about the effects of ELF-EMF on eNSCs. In this paper, we studied the effects of ELF-EMF on the proliferation and differentiation of eNSCs. Primary cultured eNSCs were treated with 50 Hz ELF-EMF; various magnetic intensities and exposure times were applied. Our data showed that there was no significant change in cell proliferation, which was evaluated by cell viability (CCK-8 assay), DNA synthesis (Edu incorporation), average diameter of neurospheres, cell cycle distribution (flow cytometry) and transcript levels of cell cycle related genes (P53, P21 and GADD45 detected by real-time PCR). When eNSCs were induced to differentiation, real-time PCR results showed a down-regulation of Sox2 and up-regulation of Math1, Math3, Ngn1 and Tuj1 mRNA levels after 50 Hz ELF-EMF exposure (2 mT for 3 days), but the percentages of neurons (Tuj1 positive cells) and astrocytes (GFAP positive cells) were not altered when detected by immunofluorescence assay. Although cell proliferation and the percentages of neurons and astrocytes differentiated from eNSCs were not affected by 50 Hz ELF-EMF, the expression of genes regulating neuronal differentiation was altered. In conclusion, our results support that 50 Hz ELF-EMF induce molecular changes during eNSCs differentiation, which might be compensated by post-transcriptional mechanisms to support cellular homeostasis.

Indexed as

Electromagnetic FieldsAnimalsBase SequenceCell DifferentiationDNA PrimersEmbryonic Stem CellsFluorescent Antibody TechniqueMiceMice, Inbred BALB CNeuronsReal-Time Polymerase Chain ReactionReverse Transcriptase Polymerase Chain ReactionRNA, MessengerDNA PrimersRNA, Messenger

Identifiers

PMID24595264
PMCPMC3940726
OpenAlexW1985305376

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.