EMF Research Studies

TERATOGENIC EFFECTS OF RF RADIATION ON MICE

Unknown authors

AN EXPERIMENTAL MODEL FOR DETECTING AND AMPLIFYING SUBTLE RF FIELD-INDUCED CELL INJURIES

Unknown authors

A BEHAVIORAL PROCEDURE AND 60 HERTZ EXPOSURE SYSTEM FOR DETERMINING FIELD DETECTION BY RATS

Unknown authors

The study uses a variant of the Method of Constant Stimuli to map the psychophysical function for 60 Hz electric field detection in rats. The exposure apparatus includes three horizontally mounted aluminum plates with a conditioning chamber centered on the middle plate. A high-voltage supply adjustable from 0 to 60 kV RMS and a PDP8/A minicomputer control the experiment.

IS THE BLOOD-BRAIN BARRIER ALTERED BY RF IRRADIATION?

Unknown authors

MICROWAVE-INDUCED CONDITIONED TASTE AVERSIONS IN RATS AT 987 MHz

Unknown authors

LOCALIZED MICROWAVE HYPERTHERMIA AT X-BAND ON EXTERNAL TUMORS IN MICE

Unknown authors

Early Developmental Deficits in Rats Following In-utero Exposure to 500 μW/cm², 2450-MHz Microwaves

Unknown authors

Researchers exposed eight pregnant rats to 500 uW/cm² 2450 MHz microwaves for 20 hours a day during the first 19 days of gestation. Exposed litters had seven times more neonatal deaths than controls, and pups weighed less on day 7 and opened their eyes one day later. Prenatally exposed females showed accelerated growth between 40 and 60 days of age and maintained a 10% higher body weight into adulthood.

PHYSIOLOGICAL AND BEHAVIORAL CHANGES IN RATS EXPOSED PRENATALLY TO 2450-MHz 500 μW/cm² MICROWAVES

Unknown authors

Researchers exposed eight pregnant rats to 2450-MHz microwaves at 500 μW/cm² for 20 hours daily during the first 19 days of gestation, which reduced the dams' percentage body weight gain compared to sham-exposed controls. During the first week of life, prenatally exposed offspring had a sevenfold higher mortality, lower body weights, and delayed eye opening compared to controls. Exposed female offspring showed accelerated growth after weaning, and as adults they exhibited more avoidance responses in a shuttlebox test and a disrupted colonic temperature rhythm.

EFFECTS ON BEHAVIOR OF LONG TERM EXPOSURE TO LOW LEVEL MWR

Unknown authors

ELECTROMAGNETIC RADIATION EFFECTS ON THE BLOOD-BRAIN BARRIER SYSTEM OF RATS

Kenneth J. Oscar, T. Daryl Hawkins

Permeability increases were also seen for inulin but not for dextran, and the effect was present immediately and at 4 hours but not at 24 hours after exposure. The magnitude of permeability change depended on microwave modulation, with differences between pulsed and continuous-wave exposures at the same average power density and between different pulse characteristics.

НЕКОТОРЫЕ ДАННЫЕ О ДЕЙСТВИИ САНТИМЕТРОВЫХ ВОЛН (Экспериментальные исследования)

З. В. Гордон, Е. А. Лобанова, М. С. Тольская

WAVEGUIDE DOSIMETRY DATA ON MICE, IN VIVO, 2.5 - 4.2 GHZ

Unknown authors

Researchers used a normalizing waveguide reflectometer with less than 1 mW output power to measure reflection, transmission, and absorption in a WR 284 waveguide for anesthetized mice weighing 5.30 to 16.32 grams and measuring 4.5 to 7.7 centimeters in length over 2.5 to 4.2 GHz. Mice were positioned centrally in the waveguide with their length parallel to the propagation direction facing the incident wave. Absorption did not appear to change for up to 5 hours after death across the frequency range. From 24 mice, resonant frequency correlated with length (f = 6.084 - 0.419l, r=0.987) and weight (f = 4.679 - 0.1266w, r=0.952). SAR values showed increased slope through resonance and normalized SARs were consistent with literature values at 2.45 GHz.

CARDIOVASCULAR RESPONSE OF RATS EXPOSED TO 60-HZ ELECTRIC FIELDS

Unknown authors

RECHERCHES SUR LES LÉSIONS VISCÉRALES OBSERVÉES CHEZ DES SOURIS ET DES RATS EXPOSÉS AUX ONDES ULTRA-COURTES ÉTUDE PARTICULIÈRE DES EFFETS DE CES ONDES SUR LA REPRODUCTION DE CES ANIMAUX

Luis MIRO, Robert LOUBIERE, André PFISTER

IN VIVO STUDY OF 60 HZ ELECTRIC FIELD EFFECTS

Unknown authors

THE EFFECTS OF 9-GHZ PULSED MICROWAVES ON CIRCULATING ANTIBODY TITERS OF MICE

Unknown authors

Researchers immunized female CD-1 mice against Streptococcus pneumoniae type III and exposed them to 9-GHz pulsed microwaves at 10 mW/cm² for two hours daily over five days. The mean antibody titer in irradiated mice was significantly higher than in sham-irradiated mice (means 24 versus 7.88, p=0.0025). When challenged with virulent bacteria, mortality was similar between the two groups (47.2% versus 50%).

MOTOR COORDINATION OR BALANCE DIFFERENCES BETWEEN RATS EXPOSED OR SHAM EXPOSED TO 60 HZ ELECTRICAL FIELDS

Unknown authors

EFFECT OF CHRONIC EXPOSURE TO AN ELECTRIC FIELD ON SUBSEQUENT DISCRIMINATION OF ELECTRIC FIELDS

Unknown authors

Researchers exposed male Sprague Dawley rats to a 100 kV/m 60-Hz electric field for 30 days at 22 hours per day or gave them sham exposure. After exposure, rats were tested in a shuttlebox with one end shielded and the other exposed at field strengths of 0, 25, 50, 75, or 100 kV/m. Pre-exposed rats spent significantly more time in the exposed region at 25 kV/m than sham pre-exposed controls. Within the pre-exposed group, exposed side residence was higher across field strengths, while sham pre-exposed rats spent more time on the shielded side.

DIFFERENTIAL CONSEQUENCES OF BIOLOGICAL SYSTEM EXPOSURE TO PULSED- AND CONTINUOUS-WAVE ELECTROMAGNETIC FIELDS

Unknown authors

Researchers exposed BALB/c female mice aged 10 to 14 weeks to pulsed- and continuous-wave electromagnetic fields at 432 MHz and 2450 MHz. Three modulations were used at each frequency: continuous wave, pulsed wave with a 120 microsecond pulse width at 400 Hz, and pulsed wave with a 12 microsecond pulse width at 4000 Hz. Power densities were 0.8 mW/cm² at 432 MHz and 2.14 mW/cm² at 2450 MHz. Two exposure schedules each provided 60 total hours: 2 hours daily for 30 consecutive days or 12 hours daily for 5 consecutive days. The study found no detectable bioeffects on granulopoietic stem cells under any exposure condition.

EFFECTS OF 60 HZ ELECTRIC FIELDS ON RODENT ADRENAL TISSUE: IN VITRO AND IN VIVO

Scott N. Ackerman et al.

The in vitro response of adrenal cortical tissue to 60 Hz high intensity electric field exposure was studied. Adrenal glands were removed from male Sprague-Dawley rats and placed in physiological solution. Adrenal cortical tissue was sliced and placed in a superfusion system where corticosterone output was continuously monitored. An electric field exposure system was placed around the tissue at an initial strength of 45 kV/m and regularly incremented. The corticosterone output response to ACTH stimulation was compared between field-on and field-off conditions.

CHANGES IN TEMPORAL ASPECTS OF BEHAVIOR BY LOW LEVELS OF PULSED MICROWAVES

Unknown authors

MODULATION OF PENTOBARBITAL EFFECTS ON TIMING BEHAVIOR IN RATS BY LOW-LEVEL MICROWAVES

Unknown authors

Rats were trained to press a lever on a schedule that rewarded responses spaced 18 to 24 seconds apart. Concurrent 30-minute exposures to 1 mW/cm² or 5 mW/cm² pulsed microwave radiation shifted the maximally effective pentobarbital dose range to 5 to 10 mg/kg. The response mode shifted from 14 to 22 seconds to 10 to 18 seconds, a 25 percent change.

STUDIES CONCERNING THE EFFECTS OF NON-THERMAL PROTRACTED PRENATAL 2450 MHz MICROWAVE IRRADIATION ON PRENATAL AND POSTNATAL DEVELOPMENT IN THE RAT

Unknown authors

Twenty-four Wistar rats were exposed 8 hours daily throughout pregnancy to 2450 MHz microwave radiation at 20 mW/cm². The exposure was non-thermal because rectal temperatures did not rise above control levels. Half of the rats were evaluated for teratologic effects on day 22 of gestation, and the other half raised offspring for postnatal behavioral and physiological testing. No significant alterations in prenatal or postnatal growth and development were observed.

MICROWAVE FEVER: AN ATTEMPT TO TRANSFER STREPTOCOCCAL ANTIBODY ACROSS THE CEREBROSPINAL-FLUID (CSF) BARRIER

Unknown authors

EFFECTS OF EXPOSURE TO 60 HZ ELECTRIC FIELDS ON GROWTH AND DEVELOPMENT IN THE RAT

Unknown authors