ID Number		639
Study Type		In Vivo
Model		1.3 GHz (CW, PW) exposure to rats and analysis of testicular function
Details		Sprague-Dawley rats (male) were exposed to 1.3 GHz (CW or PW- 1 usec pw, 600 pps) microwaves during the dark phase of their daily schedule in a circular waveguide. Exposure at 6 W/kg for 6 hr/day, 9 days, over a 2-wk period resulted in core body temperature increases of 1.5 C and had no effect on testes weight, epididymis and seminal vesicles, or daily production of sperm. Exposure at 7.7 W/kg, however, produced changes in germ cell types with primary spermatocytes being most markedly affected. Exposure for 8 hours at SARs of 9 W/kg resulted in core body temperature increases of 4.5 C and caused no effect on testes weight, epididymis and seminal vesicles, daily production of sperm, or levels of FSH and LH in the blood, but did cause a reduced count of epididymal sperm only after 26 days of exposure. Exposure at 10.5 W/kg resulted in significant decreases in sperm production and changes in circulating FSH and LH levels. The authors conclude the effects are consistent with localized heating.
Findings		Effects (only at thermal levels)
Status		Completed With Publication
Principal Investigator		Univ. of Texas Health Science Center, USA
Funding Agency		AF, USA
Country		UNITED STATES
References		Lebovitz, RM et al. Bioelectromagnetics, (1987) 8:37-43 Lebovitz, RM et al. J. Appl. Physiol., (1987) 62:245-252 Johnson, L et al. Anatomical Record, (1984) 209:501-507 Lebovitz, RM et al. Bioelectromagnetics, (1983) 4:107-114
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