Effect of electromagnetic radiation of the millimeter range on the early development of murine and sea urchin embryos

The action of nonthermal electromagnetic radiation (EMR) of the millimeter range on the early development of murine and sea urchin embryos was investi gated. An MRTA-01E-03 generator with a frequency of 54-78 GHz and radiation intensity of 0,06 mWt/cm(2) was used. The embryos were irradiated during 3 0 min at the stage of two blastomeres. The number of murine embryos that re ached the blastocyst stage increased (up to 97.3% in comparison with 87.5% in control). The total time of cultivation up to the blastocyst stage was a lso shorter (72 h) than in control (96 h). The irradiation had effect on th e development of sea urchin embryos only if embryos with a weakened viabili ty were tested. The results indicate that millimeter electromagnetic radiat ion has a stimulating effect on the early development of embryos, increasin g the resistance of embryos to unfavorable environmental conditions.