ID Number		685
Study Type		In Vivo
Model		2450 MHz (CW) exposure to rats and birds and analysis of re-warming under hypothermic conditions
Details		Sprague Dawley rat pups were exposed to 2450 MHz (CW) MW at SARs of 1-5 W/kg for 1-4 hrs in an anechoic chamber after being made hypothermic. Exposure decreased heat production and increased core body temperature. The authors conclude MW exposure can safely and rapidly warm hypothermic rats, and that the rats remain in thermal balance although metabolic response is dependent upon the thermal deposition rate. In related studies, Japanese quail were exposed to 2450 MHz (CW) MW MW at SARs of either 4 or 13 W/kg for 8 hr/day from day 1-15 of incubation. Exposure at 13 W/kg increased the wet mass of embryos, consistent with previously established observations that embryonic growth is correlated with internal egg temperature. The authors conclude MW exposure can be used to increase egg temperature and embryonic growth rate when ambient temperatures are below normal incubation level without altering basic metabolic and thermal characteristics of the developing bird. Other studies describe physiological responses of rats to higher levels of thermal stress.
Findings		Effects (only at thermal levels)
Status		Completed With Publication
Principal Investigator		Yale Univ. Sch. of Medicine, USA
Funding Agency		NIH, USA
Country		UNITED STATES
References		Spiers, DE et al. Biol. Neonate, (1989) 56:48-56 Spiers, DE et al. Bioelectromagnetics, (1991) 12:225-239 Spiers, DE et al. Bioelectromagnetics, (1987) 8:283-294 Spiers, DE et al. J. Appl. Physiol., (1986) 60:1190-1197 Spiers, DE et al. Pharmacol., (1984) 28:155-160
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