Study type: Medical/biological study (experimental study)

Plasma corticosterone in hemorrhaged Japanese quail after microwave irradiation in ovo. med./bio.

Published in: Comp Biochem Physiol A Comp Physiol 1988; 89 (3): 415-424

Aim of study (acc. to author)

To investigate the corticosterone response of Japanese quail to an acute hemorrhagic stress (i.e. jugular vein puncture) after a low level 2450 MHZ microwave exposure during the first 12 days of embryogeny (i.e. in ovo).

Endpoint

Exposure

Exposure Parameters
Exposure 1: 2.45 GHz
Modulation type: CW
Exposure duration: first 12 days of development

Exposure 1

Main characteristics
Frequency 2.45 GHz
Type
Charakteristic
Exposure duration first 12 days of development
Modulation
Modulation type CW
Exposure setup
Exposure source
Chamber environmental chamber lined with microwave absorber (-45 dB)
Sham exposure A sham exposure was conducted.
Parameters
Measurand Value Type Method Mass Remarks
SAR 4.03 mW/g - calculated - in the center of the egg
power density 5 mW/cm² - - - -

Reference articles

Exposed system:

Methods Endpoint/measurement parameters/methodology

Investigated organ system:
Time of investigation:
  • after exposure

Main outcome of study (acc. to author)

Two different experiments were carried out.
First: unexposed adult male and female Japanese quail were studied. Hemorrhage resulted in increased plasma corticosteron levels in both sex. The corticosteron level in shams were higher than in controls. The values for total erythrocyte numbers, hematocrit volumes, and mean cell volumes were decreased in response to hemorrhage.
Second: eggs were exposed, after hatching, juvenile males and females were hemorrhaged. Males showed an increased corticosterone level, no effects on females were found.

Study character:

Study funded by