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The morphological and molecular changes of brain cells exposed to direct current electric field stimulation.

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Pelletier SJ, Lagacé M, St-Amour I, Arsenault D, Cisbani G, Chabrat A, Fecteau S, Lévesque M, Cicchetti F. · 2014

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Electric fields at 25-100 V/m directly altered brain cell structure and triggered inflammatory responses in laboratory studies.

Plain English Summary

Summary written for general audiences

Researchers exposed brain cells to direct current electric fields at different intensities to see how they would respond. They found that neurons grew longer and changed shape, immune cells called microglia became more inflammatory, and support cells called astrocytes also changed their structure. This study helps explain how electric fields can directly alter brain cell behavior and function.

Why This Matters

This research provides crucial evidence that electric fields can fundamentally alter brain cell structure and function at the cellular level. The study examined direct current fields ranging from 25 to 100 volts per meter, which are comparable to fields that can be generated by certain medical devices and some high-voltage power lines. What makes this particularly significant is that the researchers documented not just physical changes in cell shape, but also molecular changes in protein expression that affect inflammation and cell growth. The finding that microglial cells increased their production of cyclooxygenase-2, an inflammatory enzyme, suggests that electric field exposure could potentially trigger neuroinflammation. This adds to the growing body of evidence that electromagnetic fields can have biological effects on the nervous system, even when those effects aren't immediately apparent as symptoms.

Exposure Details

Electric Field
0, 25, 50, and 100 V/m

Study Details

The aim of this study is to observe The morphological and molecular changes of brain cells exposed to direct current electric field stimulation.

Here, we tested various intensities of direct current electric fields (0, 25, 50, and 100V/m) in a w...

In response to direct current electric field, neurons developed an elongated cell body shape with ne...

We show that cells of the central nervous system can respond to direct current electric fields both in terms of their morphological shape and molecular expression of certain proteins, and this in turn can help us to begin understand the mechanisms underlying the clinical benefits of direct current electric field.

Cite This Study
Pelletier SJ, Lagacé M, St-Amour I, Arsenault D, Cisbani G, Chabrat A, Fecteau S, Lévesque M, Cicchetti F. (2014). The morphological and molecular changes of brain cells exposed to direct current electric field stimulation. Int J Neuropsychopharmacol. 2014 Dec 7. pii: pyu090.
Show BibTeX
@article{sj_2014_the_morphological_and_molecular_692,
  author = {Pelletier SJ and Lagacé M and St-Amour I and Arsenault D and Cisbani G and Chabrat A and Fecteau S and Lévesque M and Cicchetti F.},
  title = {The morphological and molecular changes of brain cells exposed to direct current electric field stimulation.},
  year = {2014},
  
  url = {https://academic.oup.com/ijnp/article/18/5/pyu090/785203?login=true},
}

Quick Questions About This Study

Yes, electric fields can directly alter brain cell behavior and structure. A 2014 study found that direct current electric fields caused neurons to grow longer, made immune cells more inflammatory, and changed the shape of support cells in the brain.
Electric fields can stimulate neuron growth and alter their direction. Research shows that neurons exposed to direct current fields developed elongated shapes with increased growth proteins, and their extensions grew toward the negative electrode of the field.
Electric fields may increase brain inflammation under certain conditions. The study found that microglial immune cells exposed to electric fields showed increased production of cyclooxygenase-2, an inflammatory protein, particularly when the cells were already activated.
Electric fields cause distinct shape changes in different brain cell types. Neurons become elongated with new growth extensions, astrocytes develop finger-like projections oriented perpendicular to the field, and microglia adopt different structural configurations.
Brain cells undergo both structural and molecular changes during electric stimulation. They alter their shape, change protein production levels, and reorient their growth patterns. These changes help explain how electric field therapies may work clinically.