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Pathological changes in the sinoatrial node tissues of rats caused by pulsed microwave exposure.

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Liu YQ, Gao YB, Dong J, Yao BW, Zhao L, Peng RY. · 2015

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Rats exposed to 10 and 50 mW/cm² pulsed microwave showed structural damage in the sinoatrial node and extracellular matrix remodeling.

Plain English Summary

Summary written for general audiences

Researchers exposed Wistar rats to 0, 5, 10, and 50 mW/cm² microwave to observe dynamic pathological changes in the sinus nodes. At 10 and 50 mW/cm², acute changes from 1 to 28 days included disorganized sinoatrial node cells, cell swelling, cytoplasmic condensation, nuclear pyknosis, anachromasis, swollen and empty mitochondria, and blurred and focally dissolved myofibrils. Chronic changes from 6 to 12 months at the same intensities included reduced parenchymal cells, increased collagen fibers, and extracellular matrix remodeling of interstitial cells. The researchers concluded that 10 and 50 mW/cm² microwave could cause structural damages in the sinoatrial node and extracellular matrix remodeling in rats.

Exposure Details

Power Density
0, 5, 10, 50 mW/cm²

Where This Falls on the Concern Scale

Study Exposure Level in ContextStudy Exposure Level in ContextExtreme Concern - 1,000 µW/m²FCC Limit - 10M µW/m²

Study Details

The aim of this study is to investigate Pathological changes in the sinoatrial node tissues of rats caused by pulsed microwave exposure.

To observe microwave induced dynamic pathological changes in the sinus nodes, wistar rats were expos...

In 10 and 50 mW/cm2 groups, disorganized sinoatrial node cells, cell swelling, cytoplasmic condensat...

In conclusion, 10 and 50 mW/cm2 microwave could cause structural damages in the sinoatrial node and extracellular matrix remodeling in rats.

Cite This Study
Liu YQ, Gao YB, Dong J, Yao BW, Zhao L, Peng RY. (2015). Pathological changes in the sinoatrial node tissues of rats caused by pulsed microwave exposure. Biomed Environ Sci. 28(1):72-75, 2015.
Show BibTeX
@article{yq_2015_pathological_changes_in_the_1159,
  author = {Liu YQ and Gao YB and Dong J and Yao BW and Zhao L and Peng RY.},
  title = {Pathological changes in the sinoatrial node tissues of rats caused by pulsed microwave exposure.},
  year = {2015},
  
  url = {https://pubmed.ncbi.nlm.nih.gov/25566864/},
}
PubMed: 25566864

Cited By (10 papers)

Quick Questions About This Study

The aim was to investigate pathological changes in the sinoatrial node tissues of rats caused by pulsed microwave exposure.
Wistar rats were exposed to 0, 5, 10, and 50 mW/cm² microwave.
At 10 and 50 mW/cm², acute changes from 1 to 28 days included disorganized sinoatrial node cells, cell swelling, cytoplasmic condensation, nuclear pyknosis, anachromasis, swollen and empty mitochondria, and blurred and focally dissolved myofibrils. Chronic changes from 6 to 12 months included reduced parenchymal cells, increased collagen fibers, and extracellular matrix remodeling of interstitial cells.
The researchers concluded that 10 and 50 mW/cm² microwave could cause structural damages in the sinoatrial node and extracellular matrix remodeling in rats.