Influence of gamma irradiation on developing otoconia
Journal Article
·
· Am. J. Otolaryngol.; (United States)
Thirty-two CBA/CBA mice were irradiated in utero on the 12th, 13th, or 16th gestational day with doses of 0.5, 1, and 2 Gy, respectively. One month after birth, the inner ears were examined by light microscopy and transmission and scanning electron microscopy. Otoconia with defective shapes was identified frequently. The strict hexagonal shape of normal otoconia seldom developed and, in exposed animals, had often been replaced with rounded, oval, or elongated shapes. The otoconial substructure was disarrayed, and fusion of two or three otoconia occurred. Degenerating otoconia appeared in the intercellular space of the dark-cell epithelium. Fetal gross structures of otoconia persisted into maturity.
- Research Organization:
- Karolinska Hospital, Stockholm, Sweden
- OSTI ID:
- 5217465
- Journal Information:
- Am. J. Otolaryngol.; (United States), Journal Name: Am. J. Otolaryngol.; (United States) Vol. 2; ISSN AJOTD
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
560152* -- Radiation Effects on Animals-- Animals
63 RADIATION, THERMAL, AND OTHER ENVIRON. POLLUTANT EFFECTS ON LIVING ORGS. AND BIOL. MAT.
ANIMALS
AUDITORY ORGANS
BIOLOGICAL EFFECTS
BIOLOGICAL RADIATION EFFECTS
BODY
DELAYED RADIATION EFFECTS
ELECTROMAGNETIC RADIATION
ELECTRON MICROSCOPY
GAMMA RADIATION
IONIZING RADIATIONS
IRRADIATION
MAMMALS
MICE
MICROSCOPY
OPTICAL MICROSCOPY
ORGANS
PREGNANCY
PRENATAL EXPOSURE
PRENATAL IRRADIATION
RADIATION EFFECTS
RADIATIONS
RODENTS
SCANNING ELECTRON MICROSCOPY
SENSE ORGANS
TRANSMISSION ELECTRON MICROSCOPY
VERTEBRATES
63 RADIATION, THERMAL, AND OTHER ENVIRON. POLLUTANT EFFECTS ON LIVING ORGS. AND BIOL. MAT.
ANIMALS
AUDITORY ORGANS
BIOLOGICAL EFFECTS
BIOLOGICAL RADIATION EFFECTS
BODY
DELAYED RADIATION EFFECTS
ELECTROMAGNETIC RADIATION
ELECTRON MICROSCOPY
GAMMA RADIATION
IONIZING RADIATIONS
IRRADIATION
MAMMALS
MICE
MICROSCOPY
OPTICAL MICROSCOPY
ORGANS
PREGNANCY
PRENATAL EXPOSURE
PRENATAL IRRADIATION
RADIATION EFFECTS
RADIATIONS
RODENTS
SCANNING ELECTRON MICROSCOPY
SENSE ORGANS
TRANSMISSION ELECTRON MICROSCOPY
VERTEBRATES