Exposure to extremely low-frequency (50 Hz) electromagnetic fields enhances adult hippocampal neurogenesis in C57BL/6 mice
Cuccurazzu B, Leone L, Podda MV, Piacentini R, Riccardi E, Ripoli C, Azzena GB, Grassi C. · 2010
View Original AbstractExposure to 50-Hz electromagnetic fields significantly enhanced new neuron growth in the hippocampus of adult mice and increased long-term potentiation.
Plain English Summary
The exposure significantly enhanced neurogenesis in the dentate gyrus, with increased numbers of cells labeled for markers of new and developing neurons. Roughly half of the newly generated neurons survived 30 days after stimulation and became mature neurons integrated into the granule cell layer. The new mature neurons were associated with increased long-term potentiation, indicating an influence on hippocampal synaptic plasticity.
Why This Matters
The study looked at neurogenesis, the process by which new neurons are born and mature in the adult brain, specifically in the dentate gyrus region of the hippocampus. To track new cells, researchers used 5-bromo-deoxyuridine, a chemical marker that labels dividing cells, alongside doublecortin, a marker for immature neurons. These gene-level findings were confirmed by Western blot analysis, which showed increased expression of NeuroD1, NeuroD2, and Cav1 channels as proteins. The researchers suggested their findings could lead to novel therapeutic approaches in regenerative medicine.
Exposure Details
- Magnetic Field
- 1 mT
- Source/Device
- 50 Hz
- Exposure Duration
- 1 to 7 h/day for 7 days
Exposure Context
This study used 1 mT for magnetic fields:
- 50Kx above the Building Biology guideline of 0.2 mG
- 10Kx above the BioInitiative Report recommendation of 1 mG
Building Biology guidelines are practitioner-based limits from real-world assessments. BioInitiative Report recommendations are based on peer-reviewed science. Check Your Exposure to compare your own measurements.
Where This Falls on the Concern Scale
Study Details
The aim of the present study was to determine whether 50-Hz/1 mT ELFEF stimulation also affects adult hippocampal neurogenesis in vivo, and if so, to identify the molecular mechanisms underlying this action and its functional impact on synaptic plasticity.
ELFEF exposure (1 to 7 h/day for 7 days) significantly enhanced neurogenesis in the dentate gyrus (...
Our findings show that ELFEF exposure can be an effective tool for increasing in vivo neurogenesis, and they could lead to the development of novel therapeutic approaches in regenerative medicine.
Show BibTeX
@article{b_2010_exposure_to_extremely_lowfrequency_236,
author = {Cuccurazzu B and Leone L and Podda MV and Piacentini R and Riccardi E and Ripoli C and Azzena GB and Grassi C.},
title = {Exposure to extremely low-frequency (50 Hz) electromagnetic fields enhances adult hippocampal neurogenesis in C57BL/6 mice},
year = {2010},
url = {https://www.sciencedirect.com/science/article/abs/pii/S0014488610003213},
}