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Medical/biological Study (experimental study)

GSM 900 MHz cellular phone radiation can either stimulate or depress early embryogenesis in Japanese quails depending on the duration of exposure. med./biol.

By: Tsybulin O, Sidorik E, Brieieva O, Buchynska L, Kyrylenko S, Henshel D, Yakymenko I
Published in: Int J Radiat Biol 2013; 89 (9): 756 - 763 (PubMed | Journal website)

Aim of study (according to author)
To examine the effects of mobile phone-exposure (GSM) on the early embryogenesis in japanese quails.
Background/further details:
Four groups of fertilized eggs were examined (n=10-12 per group): 1.) control group, 38 h brooding, 2.) exposed during 38 h brooding, 3.) control group, 120 h at room temperature, then 38 h brooding (158 h in total) and 4.) exposed during 120 h at room temperature, then during 38 h brooding (158 h in total). Brooding took place in incubators (38C). Control groups and exposure groups were brooded at the same time, however the control eggs were shielded against the electromagnetic fields by 6 layers of aluminium foil.

Endpoint

Exposure
General category: mobile communication system, mobile phone, GSM

Field characteristicsParameters
field 1: 890 O - 915 Hz O
exposure duration: intermittent for 38 h: 48 sec "on" (speech mode), 12 sec "off"
power flux density: 2.5 mW/m² mean value (on the egg surface)
electric field strength: 0.02 V/m (inside the egg)
SAR: 3 µW/kg
field 2: 890 O - 915 MHz O
exposure duration: intermittent for 158 h (120 h before and 38 h during brooding): 48 sec "on" (speech mode), 12 sec "off"
power flux density: 2.5 mW/m² mean value (on the egg surface)
electric field strength: 0.02 V/m (inside the egg)
SAR: 3 µW/kg

FIELD View further expo parameters

Exposed system:
animal (species/strain): Japanese quail (Coturnix coturnix japonica)
whole body exposure: in ovo

Methods
Endpoint/Measurement parameters/Methodology

investigated material: intact cell/cell culture (in vitro), tissue homogenate of whole embryo, embryo


Main outcome of study (according to author)
No malformations in the embryos occurred and no differences in the surface temperature of the eggs were found between the groups.
In the 38 hours-exposed group, a significant increased number of differentiated somites was observed in comparison to the corresponding control group. Additionally, DNA strand breaks were significantly decreased compared to the control group. An exposure for 158 hours significantly decreased the number of differentiated somites and resulted in a significant increase of DNA strand breaks compared to the control group.
The authors conclude that mobile phone-exposure can stimulate or depress the embryogenesis of Japanese quails and that this effect could depend on the exposure duration.

(Study character: medical/biological study, experimental study, full/main study)

Study funded by

Related articles i
Glossary: animal, biological, cell, cell culture, comet assay, control group, differentiated, DNA strand breaks, eggs, electric field strength, electromagnetic fields, embryogenesis, embryos, endpoint, exposed, exposure, fertilized, fetus, full/main study, genotoxicity, GSM, homogenate, incubators, intermittent, in vitro, light microscopy, malformations, mean value, mobile communication, mobile phone, mode, mutation, power flux density, SAR, significant, somites, species, strain, tissue, whole body exposure
Exposure: mobile communication system, mobile phone, GSM

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