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Brain & Nervous System117 citations

Chronic prenatal exposure to the 900 megahertz electromagnetic field induces pyramidal cell loss in the hippocampus of newborn rats

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Authors not listed · 2009

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Prenatal exposure to 900 MHz electromagnetic fields was associated with significant pyramidal cell loss in the hippocampus of newborn rats, though the mechanism remains unclear.

Plain English Summary

Summary written for general audiences

This study examined the effects of prenatal exposure to 900 MHz electromagnetic fields on hippocampal development in rats. Pregnant rats were exposed to the electromagnetic field during gestation days 1-19, and their offspring were analyzed at 4 weeks of age. The researchers found that prenatal electromagnetic field exposure significantly reduced the total number of pyramidal cells in the cornu ammonis region of the hippocampus compared to controls.

Why This Matters

This study uses a rodent model to investigate potential neurodevelopmental effects of mobile phone frequency exposure during a critical prenatal period. The hippocampus is a brain region important for learning and memory, making pyramidal cell changes potentially significant for neurodevelopmental outcomes.

Exposure Information

A logarithmic frequency spectrum from 10 Hz to 100 GHz showing where this study's 900 MHz exposure sits relative to common EMF sources.Where This Frequency Sits on the EMF SpectrumELFVLFLF / MFHF / VHFUHFSHFmm10 Hz100 GHzThis study: 900 MHzPower lines50/60 Hz5G mm28 GHzLogarithmic scale

Specific exposure levels were not quantified in this study.

Cite This Study
Unknown (2009). Chronic prenatal exposure to the 900 megahertz electromagnetic field induces pyramidal cell loss in the hippocampus of newborn rats.
Show BibTeX
@article{chronic_prenatal_exposure_to_the_900_megahertz_electromagnetic_field_induces_pyramidal_cell_loss_in_the_hippocampus_of_newborn_rats_ce3615,
  author = {Unknown},
  title = {Chronic prenatal exposure to the 900 megahertz electromagnetic field induces pyramidal cell loss in the hippocampus of newborn rats},
  year = {2009},
  
  
}
PubMed: 19671630

Quick Questions About This Study

This study suggests yes: rats whose mothers were exposed to 900 MHz electromagnetic fields during gestation days 1-19 had a significantly lower pyramidal cell number in the hippocampal cornu ammonis at the end of the 4th week (P < 0.001).
Pregnant rats were exposed to 900 MHz electromagnetic fields during gestation days 1-19, and their offspring were analyzed at the end of the 4th week.
The hippocampus, specifically the cornu ammonis (CA) region containing pyramidal cells. This brain area is crucial for memory formation, learning, and spatial navigation, making the cell loss particularly concerning for cognitive function.
Offspring from a control group (n = 6) and an electromagnetic field group (n = 6) were sacrificed for stereological analyses at the end of the 4th week.
Yes, the study used a control group of pregnant rats on which no actions were performed during the same period, and compared their offspring with those of the exposed group.