[The formation of absorbed doses of 137Cs in the body of the female and her progeny during suckling]. / Formirovanie pogloshchennykh doz ot 137Cs v organizme samki i potomstva v period molochnogo vskarmlivaniia.

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.

[Kinetics of metabolism and mechanisms of formation of absorbed doses in the mouse testis from incorporated Cs-137]. / Kinetika obmena i zakonomernosti formirovaniia pogloshchennykh doz v semennikakh myshi ot inkorporirovannogo 137Cs.

The process of accumulation of absorbed doses from incorporated 137Cs in the body and gonads of male mice was investigated in our experiments. The radionuclide accumulated in gonads has very long time of excretion, and as result the radionuclide can be treated as long lasting and permanent source of alpha- and beta-radiation in gonads. The rates of total exposed doses in gonads were in 2.0-3.0 times higher then the average total exposed dose in hole body.

[The early and late effects of a radiation lesion by 14C(14C-stearic acid)]. / Rannie i otdalennye éffekty radiatsionnogo porazheniia 14C(14C-stearinovoi kislotoi).

In experiments with mice a study was made of the biological effect of radiocarbon (14C-stearic acid) injected intraperitoneally in doses of 2.2, 1.2 and 0.5 MBq/g. The doses absorbed within the body made up an average of 13.4 and 1.7 Gy respectively. The animals of the 1st group exhibited a severe degree of radiation affection and those of the 2nd and 3d groups median and mild degrees. Metabolism peculiarities and formation of absorbed 14C doses, as well as early and remote effects of radiation were investigated.

[The biological action of radioactive carbon. The metabolic kinetics and biological effects of the combined action of radioactive carbon (14C-glucose) and sodium nitrite chronically administered]. / Biologicheskoe deistvie radioaktivnogo ugleroda. Kinetika obmena i biologicheskie éffekty sochetannogo deistviia radioaktivnogo ugleroda (14C-gliukozy) i nitrita natriia pri khronicheskom vvedenii.

A study was made of the effect of sodium nitrate (3.1 and 0.3 g/l) on the metabolism kinetics and the biological effects of 14C-glucose (13 kBq/rat/day) that were chronically administered to rats. After both separate and combined administration of the radiation and chemical agents, no substantial changes were detected in the kinetics of metabolism and biological effect of 14C. Six months after the onset of the experiment, the reproductive function of the experimental rats was impaired.

[Longevity of animals in combined exposure to total gamma irradiation and incorporated plutonium-239]. / Prodolzhitel'nost' zhizni zhivotnykh pri kombinirovannom vozdeistvii total'nogo gamma-oblucheniia i inkorporirovannogo plutoniia-239.

The paper presents the functions and nomograms permitting to estimate the expected consequences of the combined effect of alpha-radiation from incorporated plutonium 239 and external gamma-rays at random doses on the lifetime of animals.