THE QUESTION OF INDIRECT INFLUENCES IN THE REACTION OF RAT EMBROYOS TO IRRADIATION

Journal Article · Wed Jan 01 04:00:00 EST 1958 · Folia Biologica (Prague) (Czechoslovakia)

OSTI ID:4264191

Lengerova, A

When the total number of rat embryos was irradiated in utero, the reaction was stronger than when only half were irradiated. This was displayed in higher prenatal mortality and a lower mean body weight. When irradiated shortly before birth, rat fetuses reacted significantly less intensely than newborn rats irradiated with the same dose. This may be due either to the protective influence of the maternal organism, or to higher radioresistance of the fetuses in utero, due to their different physiological state, or to both these influences. Irradiation of the female with a sublethal radiation dose on the 15th day of gestation markedly enhanced the lethal effect of a simultaneous dose of 200 r on the fetuses. Splenectomy of thc female did not affect the reaction of the fetuses to a dose of 200 r on the 15th day of gestation. (auth)

• Research Organization: Inst. of Biology, Czechoslovak Academy of Sciences, Prague
• NSA Number: NSA-13-009592
• OSTI ID: 4264191
• Journal Information: Folia Biologica (Prague) (Czechoslovakia), Journal Name: Folia Biologica (Prague) (Czechoslovakia) Vol. Vol: 4; ISSN FOBLA
• Country of Publication: Country unknown/Code not available
• Language: English

Related Subjects

BIOLOGY AND MEDICINE
BODY
EMBRYOS
FETUSES
IRRADIATION
PREGNANCY
RADIATION PROTECTION
RADIOSENSITIVITY
RATS
SEX
SPLEEN
SURGERY
SURVIVAL TIME
TISSUES
VARIATIONS
WEIGHT