SANGUINE SYSTEM BIOLOGICAL/ECOLOGICAL RESEARCH PROGRAM SUMMARY STATUS REPORT
Department of the Navy Electronic Systems Command · 1973
Browse 6,486 peer-reviewed studies on electromagnetic field health effects from 4 research libraries.
Showing 706 studies in DNA & Genetic Damage
Department of the Navy Electronic Systems Command · 1973
Miller, Morton W. · 1973
Loeffler L · 1973
P. S. Rai, H. J. Ball, S. O. Nelson, L. E. Stetson · 1972
Researchers exposed Tenebrio molitor eggs to 39-MHz radiofrequency electric fields at electrode voltages of 2 to 4 kilovolts for 2 to 64 seconds. Percent hatch of 1- and 3-day-old eggs decreased as RF energy level increased, and 1-day-old eggs were more susceptible than 3-day-old eggs. No larvae survived from 1-day-old eggs treated at 4 kilovolts for 32 and 64 seconds, while 3-day-old eggs treated similarly showed low but higher larval survival.
Byron D. McLees, E. D. Finch, M. L. Albright · 1972
Harte, C · 1972
Mills · 1971
Byron D. McLees, Edward D. Finch, Marion L. Albright · 1971
Clarence D. Cone, Jr. · 1970
George Mickey · 1970
Bernice H. Cohen, Abraham M. Lilienfeld · 1970
Mothers of children with mongolism reported significantly less often having no radiation exposure (50% vs 59.9%) than control mothers. The estimated relative risk for maternal radiation exposure was 1.5, corresponding to an attributable risk of 17%. Fathers of mongol children more often reported radar exposure (8.75%) than control fathers (3.3%), a difference of borderline significance.
D. E. JANES et al. · 1969
John H. Heller · 1969
S. J. Webb, A. D. Booth · 1969
Researchers prepared cells and their fractions and measured microwave absorption at various frequencies. DNA showed higher microwave absorption than RNA. The study found that microwave absorption by cells affects biological processes.
SHIRLEY A. CARNEY, J. C. LAWRENCE, C. R. RICKETTS · 1968
Researchers exposed small pieces of guinea-pig skin to a uniform field of X-band microwaves at 8,730 MHz. Measurements showed that 26% of the incident energy was reflected, 34.4 was absorbed, and the remaining 40% was transmitted. Exposure caused a graded reduction in phosphate uptake into phospholipid, nucleic acid, and phosphoprotein fractions, a graded reduction in sulphate uptake with increasing energy density, and a significant reduction in proline uptake into collagen at the three highest power densities.
Shiro Takashima · 1966
Researchers irradiated alcohol dehydrogenase at 200 volts peak-to-peak across frequencies from 1 to 60 Mc/s. Enzyme activity was measured by the rate of DPN reduction, while DNA structure was assessed by optical density at 260 mu and viscosity. Optical density and viscosity of irradiated DNA showed no significant difference from control samples. The ratio of the first-order rate constant for irradiated versus control alcohol dehydrogenase was nearly unity, indicating no change in activity.
Arnold T. Sigler et al. · 1965
D. E. Janes et al. · 1965
R.A.E. Thomson, S.M. Michaelson, J.W. Howland · 1963
G. H. Mickey · 1963
Morgan RH · 1963
S. M. Michaelson et al. · 1963
John H. Heller, A. A. Teixeira-Pinto · 1959
Researchers used a pulsed radio-frequency source at 27 Mc./s. with pulses of 5 X 10-5 sec. and 80 to 180 pulses per second. Garlic root tips were exposed for 5 minutes between insulated electrodes with no temperature rise in the water. Observed chromosomal aberrations included linear shortening of chromosomes, pseudochiasmiata, amitotic division, bridging, and irregularities in the chromosomal envelope.
Terrell L. Hill · 1957
The paper theorized that an electric field can alter or reverse the relative stability of different macromolecular configurations. It stated that the field will shift the equilibrium between molecular configurations. The analysis identified three possible consequences: separation of DNA double helix chains, partial or complete protein denaturation, and changes in protein chain elasticity between long and short states. The author noted these processes might occur in artificial conditions or be relevant in natural biological membranes due to changes in membrane potential or charge distribution.
H. J. MULLER · 1950