Study type: Medical/biological study (experimental study)

Hypoalgesic effect of millimeter waves in mice: dependence on the site of exposure. med./bio.

Published in: Life Sci 2000; 66 (21): 2101-2111

Aim of study (acc. to author)

To reproduce, quantitativly assess and compare the hypoalgesic effect of millimeter waves treatment, exposing areas of murine skin possessing different innervation densities.

Endpoint

Exposure

Exposure Parameters
Exposure 1: 61.22 GHz
Exposure duration: 15 min

Exposure 1

Main characteristics
Frequency 61.22 GHz
Type
Exposure duration 15 min
Exposure setup
Exposure source
Chamber a shielded low carbon steel chamber 0.5 inch thick.
Setup the mouse was restrained in a plastic restrainer with the murine nose and mid back uncovered for exposure; the tail and paws were placed outside the restrainer. A black MW-absorbing shield was placed between the paw and the restrainer.
Sham exposure A sham exposure was conducted.
Parameters
Measurand Value Type Method Mass Remarks
power density 150 W/m² unspecified measured - -

Reference articles

  • Rojavin MA et al. (1997): Electromagnetic millimeter waves increase the duration of anaesthesia caused by ketamine and chloral hydrate in mice.

Exposed system:

Methods Endpoint/measurement parameters/methodology

Investigated system:
Investigated organ system:
Time of investigation:
  • after exposure

Main outcome of study (acc. to author)

The maximum hypoalgesic effect was achieved by exposing to millimeter waves the more densely innervated skin areas (nose and footpad). The effect to the murine back, which is less densely innervated, was not statistically significant. The results support the hypothesis of neural system involvement in the systemic response to millimeter waves.

Study character:

Study funded by

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