ID Number		646
Study Type		Human / Provocation
Model		915, 2450 MHz (CW) exposure to human testes and analysis of tissue damage
Details		Human subjects were exposed to 915 and 2450 MHz (CW) at 20-30 watts to the testes for 16-30 treatments of 0.5 hr/treatment as a contraceptive technique (creating scrotum surface temperatures of 40-42°C). One year after treatment, histological analysis of testicular biopsies revealed incomplete degeneration of spermatogenic function, latent damage in spermatogonia, thickening of the seminiferous tubules, moderate hyaline degeneration, and local changes in the number of interstitial cells. A follow-up study reported increases in the number of cast-off cells and deformed sperm. Sterility did not occur in any treated patient.
Findings		Effects (only at thermal levels)
Status		Completed With Publication
Principal Investigator		Hunan Normal Univ, China
Funding Agency		Private/Instit.
Country		CHINA
References		Liu, YH et al. J. Bioelectricity , (1991) 10:213-230 Liu, YH et al. J. Bioelectricity, (1988) 7:97-102
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