Reduced weight in mice offspring after in utero exposure to 2450-MHz (CW) microwaves
Time-bred CD-1 mice (100) were sham-irradiated or irradiated with 2450-MHz (CW) microwaves at 28 mW/cm2 for 100 minutes daily from the 6th through 17th day of gestation. The offspring were examined either as fetuses after hysterotomy on the 18th day of gestation or as naturally born neonates on the 1st and 7th day of age. Fetuses of half of the dams were examined on the 18th day of gestation. The incidence of pregnancy and the numbers of live, dead, resorbed, and total fetuses were similar in both groups. The mean weight was significantly lower (10%) in live microwave-irradiated fetuses, and ossification of sternal centers was significantly delayed. In the offspring that were born naturally, the mean weight of microwave-irradiated 7-day-old suckling mice was significantly lower (10%) than that of the sham-irradiated group. Survival rates of neonates in these two groups were not different. These data demonstrate that the decreased fetal weight seen in microwave-irradiated mice is retained at least 7 days after birth. Evidence from other published studies is presented to show that the retarded growth is persistent and might be interpreted as permanent stunting.
- Research Organization:
- Health Effects Research Laboratory, US Environmental Protection Agency, Research Triangle Park, NC
- OSTI ID:
- 6576256
- Journal Information:
- Bioelectromagnetics (N.Y.); (United States), Journal Name: Bioelectromagnetics (N.Y.); (United States) Vol. 3:2; ISSN BLCTD
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
63 RADIATION, THERMAL, AND OTHER ENVIRON. POLLUTANT EFFECTS ON LIVING ORGS. AND BIOL. MAT.
ANIMALS
BIOLOGICAL EFFECTS
ELECTROMAGNETIC RADIATION
FETUSES
FREQUENCY RANGE
GHZ RANGE
GHZ RANGE 01-100
MAMMALS
MICE
MICROWAVE RADIATION
NEONATES
RADIATIONS
RODENTS
TERATOGENESIS
VERTEBRATES
VIABILITY
WEIGHT