Accession Number : ADA207468


Title :   Cellular and Organizational Responses to Combined Kilohertz and Other Nonionizing Electromagnetic Fields


Descriptive Note : Final rept. May 1985-May 1987


Corporate Author : LOMA LINDA UNIV CA DEPT OF MEDICINE


Personal Author(s) : Adey, W R ; Bawin, S ; Cain, C ; Sheppard, A ; Stell, M


Full Text : https://apps.dtic.mil/dtic/tr/fulltext/u2/a207468.pdf


Report Date : 12 Apr 1989


Pagination or Media Count : 80


Abstract : The three elements of the research were designed to examine possible biological and medical effects of exposure to the near-field of Loran-C transmitters that operates in a pulse modulated mode at a carrier frequency of 100 KHz. Neurochemical studies tested the effects of single and repeated in vivo exposure to a simulated Loran-C type waveform on the rat brain biogenic amine and opiate receptor systems. We found AM-PM differences in the levels of amines but no field-related effect was detected. Number and affinity of opiate receptors were also not affected by exposure to the combined electric (3 kV/m rms) and magnetic (48 uT rms) components of this Loran-C Type waveform. Behavioral studies compared the rat's known ability to detect low intensity 60 Hz electric fields (10 KV/m) with potential detection of Loran-like fields. The data showed that rats trained in an operant conditioning task did not reliably detect the 100 KHz at any field strength used (0 to 9 kV/m). Biochemical studies measured ornithine decarboxylase (ODC) activity in tissue culture cells to monitor membrane signal transduction. Exposure to the Loran-C type waveform at 10mV/cm field strength did not modify basal ODC activity in primary bone cells from mouse calvaria.


Descriptors :   *AMINES , *BRAIN , *ELECTROMAGNETIC FIELDS , *OPIUM ALKALOIDS , *RADIATION EFFECTS , BEHAVIORAL SCIENCES , BIOCHEMISTRY , CARRIER FREQUENCIES , CELLS(BIOLOGY) , DETECTION , EXPOSURE(PHYSIOLOGY) , FIELD INTENSITY , IN VIVO ANALYSIS , LORAN , MEDICINE , NERVE TRANSMISSION , NEUROCHEMISTRY , PULSE MODULATION , RATS , RESPONSE(BIOLOGY) , SENSE ORGANS , SIGNALS , SIMULATION , TISSUE CULTURE CELLS , TRANSMITTERS


Subject Categories : Stress Physiology
      Electromagnetic Pulses


Distribution Statement : APPROVED FOR PUBLIC RELEASE