[The formation of absorbed doses of 137Cs in the body of the female and her progeny during suckling].
The transfer of 137Cs with maternal milk to progeny was studied in rats. The rats were administered with 25 kBq/g of 137Cs nitrate (pH = 6) in a single oral dose immediately after delivery. Nonpregnant females served as control. Absorbed doses per activity unit to lactating rats were 23% lover than to nonlactating ones. Over the suckling period, absorbed doses to young rats amounted to about 35% of the absorbed dose to the nursing female. For nonlactating females, the internal dose approximately equalled the sum of doses to the nursing female and young rats.
Liaginskaia
A M
AM
State Research Centre of Russia, Institute of Biophysics, Moscow, Russia. ibphgen@rcibph.dol.ru
Osipov
V A
VA
Dement'ev
S I
SI
Ermalitskiĭ
A P
AP
D000042:Absorption; D000818:Animals; D000833:Animals, Suckling; D002588:Cesium Radioisotopes / Q000493:pharmacokinetics*; D005260:Female; D006207:Half-Life; D007774:Lactation / Q000528:radiation effects*; D011247:Pregnancy; D051381:Rats; D017208:Rats, Wistar; D013997:Time Factors
D002588:Cesium Radioisotopes