Study type: Medical/biological study (experimental study)

Effects of electromagnetic radiation on embryos of sea-urchins med./bio.

By: Koldayev VM, Shchepin YV
Published in: Bioelectrochem Bioenerg 1997; 43 (1): 161-164
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Aim of study (acc. to author)

To study the effects of electromagnetic irradiation on the processes of early embryogenesis, using sea urchin embryos.

Endpoint

Exposure

Exposure Parameters
Exposure 1: 450 MHz
Exposure duration: continuous for 5-20 min
Exposure 2: 450 MHz
Exposure duration: continuous for 10 min

Exposure 1

Main characteristics
Frequency 450 MHz
Type
Exposure duration continuous for 5-20 min
Exposure setup
Exposure source
  • not further specified apparatus developed at the laboratory
Parameters
Measurand Value Type Method Mass Remarks
power density 100 mW/cm² - - - -
power density 200 mW/cm² - - - -
power density 300 mW/cm² - - - -

Exposure 2

Main characteristics
Frequency 450 MHz
Type
Exposure duration continuous for 10 min
Exposure setup
Exposure source
Parameters
Measurand Value Type Method Mass Remarks
power density 100 mW/cm² - - - -

Exposed system:

Methods Endpoint/measurement parameters/methodology

Investigated system:
Time of investigation:
  • after exposure

Main outcome of study (acc. to author)

Electromagnetic irradiation produces a decrease in the number of fertilized eggs and an increase in the number of zygotes with abnormal fertilization envelopes. The microstructural impairments of the cellular surface, the increase of lipid peroxidation and the changes of amino acid metabolism show that the impairments of the development of exposed embryos are caused by the damages of the membrane structures.

Study character:

Study funded by