Abstract
During the course of a formal program of cooperation between the United States and the Soviet Union concerning the biological effects of physical factors in the environment, it was concluded that duplicate projects should be initiated with the general goal of determining the most sensitive and valid test procedures for evaluating the effects of microwave radiation on the central nervous system. This report details an initial step in this direction. Male rats of the Fischer 344 strain were exposed or sham exposed to 10 mW/cm2 continuous wave microwave radiation at 2.45 GHz for a period of 7 hr. Animals were subjected to behavioral, biochemical, or electrophysiological measurements during and/or immediately after exposure. Behavioral tests used were passive avoidance and activity in an open field. Biochemical measurements were ATPase (Na+, K+; Mg2+, Ca2+) and K+ alkaline phosphatase activities. Electrophysiological measurements consisted of EEG frequency analysis. Neither group observed a significant effect of microwave irradiation on open field activity. Both groups observed changes in variability of the data obtained using the passive avoidance procedure, but not in the same parameters. The U.S. group, but not the USSR group, found significantly less Na+,K+-ATPase activity in the microwave-exposed animals compared to the sham exposed animals. Both groups found incidences of statistically significant effects in the power spectral analysis of EEG frequency, but not at the same frequency. The failure of both groups to substantiate the results of the other reinforces our contention that such duplicate projects are important and necessary.
Full text
PDF








Images in this article
Selected References
These references are in PubMed. This may not be the complete list of references from this article.
- Atterwill C. K., Cunningham V. J., Balázs R. Characterization of Na+,K+-ATPase in cultured and separated neuronal and glial cells from rat cerebellum. J Neurochem. 1984 Jul;43(1):8–18. doi: 10.1111/j.1471-4159.1984.tb06672.x. [DOI] [PubMed] [Google Scholar]
- Atterwill C. K., Reid J., Athayde C. M. Effect of thyroid status on the development of the different molecular forms of Na+,K+-ATPase in rat brain. Mol Cell Endocrinol. 1985 May;40(2-3):149–158. doi: 10.1016/0303-7207(85)90170-4. [DOI] [PubMed] [Google Scholar]
- Barrett R. J., Leith N. J., Ray O. S. An analysis of the facilitation of avoidance acquisition produced by d-amphetamine and scopolamine. Behav Biol. 1974 Jun;11(2):189–203. doi: 10.1016/s0091-6773(74)90353-8. [DOI] [PubMed] [Google Scholar]
- Kuribara H. Strain differences to the effects of central acting drugs on Sidman avoidance response in Wistar and Fischer 344 rats. Pharmacol Biochem Behav. 1982 Sep;17(3):425–429. doi: 10.1016/0091-3057(82)90299-4. [DOI] [PubMed] [Google Scholar]
- Lytton J., Lin J. C., Guidotti G. Identification of two molecular forms of (Na+,K+)-ATPase in rat adipocytes. Relation to insulin stimulation of the enzyme. J Biol Chem. 1985 Jan 25;260(2):1177–1184. [PubMed] [Google Scholar]
- Matsuda T., Iwata H., Cooper J. R. Specific inactivation of alpha (+) molecular form of (Na+ + K+)-ATPase by pyrithiamin. J Biol Chem. 1984 Mar 25;259(6):3858–3863. [PubMed] [Google Scholar]
- McRee D. I., Davis H. G. Effects on energy absorption of orientation and size of animals exposed to 2.45-GHz microwave radiation. Health Phys. 1987 Jan;52(1):39–43. doi: 10.1097/00004032-198701000-00003. [DOI] [PubMed] [Google Scholar]
- Ray O. S., Barrett R. J. Behavioral, pharmacological, and biochemical analysis of genetic differences in rats. Behav Biol. 1975 Dec;15(4):391–417. doi: 10.1016/s0091-6773(75)92184-7. [DOI] [PubMed] [Google Scholar]
- Rosecrans J. A., Schechter M. D. Brain 5-hydroxytryptamine correlates of behavior in rats: strain and sex variability. Physiol Behav. 1972 Mar;8(3):503–510. doi: 10.1016/0031-9384(72)90336-8. [DOI] [PubMed] [Google Scholar]
- Silbergeld E. K. Erythrosin B is a specific inhibitor of high affinity 3H-quabain binding and ion transport in rat brain. Neuropharmacology. 1981 Jan;20(1):87–90. doi: 10.1016/0028-3908(81)90048-4. [DOI] [PubMed] [Google Scholar]
- Sweadner K. J. Two molecular forms of (Na+ + K+)-stimulated ATPase in brain. Separation, and difference in affinity for strophanthidin. J Biol Chem. 1979 Jul 10;254(13):6060–6067. [PubMed] [Google Scholar]


