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Trace elements homeostasis in brain exposed to 900 MHz RFW emitted from a BTS-antenna model and the protective role of vitamin E

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Azimzadeh M, Jelodar G · 2020

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Exposure to 900 MHz radiofrequency radiation altered brain trace element balance in rats, with vitamin E providing some protective benefit against these disruptions.

Plain English Summary

Summary written for general audiences

This study examined the effects of 900 MHz radiofrequency exposure on trace element concentrations (iron, copper, zinc, and manganese) in rat brain tissue, and investigated whether vitamin E pretreatment could provide protective effects. The results showed that radiofrequency exposure disrupted trace element homeostasis by increasing iron, copper, and manganese levels while decreasing zinc, and vitamin E supplementation partially mitigated these changes.

Why This Matters

Trace element homeostasis in the central nervous system is critical for neurological function, including roles in oxidative stress regulation and enzymatic activity. This study contributes to research examining potential biological mechanisms of radiofrequency exposure effects, though findings in rodent models require validation in human studies and the specific pathological relevance of the observed elemental changes remains to be established.

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
Azimzadeh M, Jelodar G (2020). Trace elements homeostasis in brain exposed to 900 MHz RFW emitted from a BTS-antenna model and the protective role of vitamin E.
Show BibTeX
@article{azimzadeh_m_jelodar_g_ce3147,
  author = {Azimzadeh M and Jelodar G},
  title = {Trace elements homeostasis in brain exposed to 900 MHz RFW emitted from a BTS-antenna model and the protective role of vitamin E},
  year = {2020},
  doi = {10.1177/0748233720973143},
  
}
DOI: 10.1177/0748233720973143PubMed: 32279387

Quick Questions About This Study

Yes, this study found that 900 MHz radiation from base station antennas impaired learning and memory performance in young rats exposed during pregnancy or early postnatal life. Brain tissue analysis also showed reduced density of memory-related cells in the hippocampus.
According to this research, prenatal exposure to 900 MHz radiation caused more severe learning and memory deficits than postnatal exposure. Rats exposed during fetal development showed greater impairment in both short-term and long-term memory tasks compared to those exposed after birth.
The memory and learning deficits persisted until at least 45 days of age when the rats were tested. This suggests that brief exposure during critical developmental periods can have lasting effects on cognitive function throughout early life.
Researchers observed a mild decrease in the density of pyramidal cells in the hippocampus, the brain region crucial for learning and memory. This cellular damage corresponded with the observed behavioral deficits in memory performance tasks.
Yes, even relatively brief daily exposures of 2-4 hours to 900 MHz radiation during the first 21 days of life caused measurable learning and memory impairments. This suggests that cumulative exposure time, even in short daily doses, can impact brain development.