By A. A. Letavet, E. B. Kurlyandskaya
The Toxicology of Radioactive components, quantity three: Iron-59 offers with the experimental result of assessments carried out on the Radiotoxicology Laboratory of the Institute of Occupational Hygiene and illness, Academy of scientific Sciences, U.S.S.R.
The publication makes a speciality of experiences made on iron-59, that's normal in technological know-how and expertise, resembling within the steel and within the learn of hemoglobin metabolism within the bone marrow and pink cells. different stories exhibit, even if, that there's a long term damaging impression of consumption of iron-59. The textual content then provides a short define of the actual, chemical, and organic homes of iron. examine additionally exhibits that the body's response to radioactive components is determined by how those are transmitted to the physique and on their physicochemical houses. The impact of lengthy management of radioactive iron at the electric task of the cerebral cortex of animals is analyzed, of which, probably, the worried procedure is most influenced. The e-book notes additionally the adjustments within the pink blood cells in the course of persistent management of iron-59 in small doses, in which the hemoglobin degrees elevated quickly. stories of lengthy publicity to radioactive isotopes while pregnant of the attempt animals convey that there are major adjustments in erythropoiesis, linked to iron deficiency. In one other examine, the lengthy inner management of radioactive ingredients confirmed phasic alterations within the peak of electrocardiographic waves of the try out animals.
The textual content is acceptable for physicists, nuclear scientists, medical professionals of toxicology, and researchers in nuclear drugs.
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Extra info for The Toxicology of Radioactive Substances. Volume 3.59
FRIEDLENDER W. , Neurology, 9 (1), 23 (1959). G A S T O U T H . G. a. din. neurophysiol, 2 (3), 249 (1950). , The effect of a single X-ray dose of 5 r on the dynamic stereotype of assumed and existing conditioned reflexes (white rats) (Vliyanie odnokratnogo vozdeistviya rentgenovymi luchami v doze 5 rentgen na dinamicheskii stereotip sledovykh i nalichnykh uslovnykh refleksov zhivotnykh (belykh krys)). Transactions of 2nd Scientific Conference on the effect of ionizing radiation on the higher sections of the central ner vous system, Moscow, p.
The y-radiation doses in the different body regions are characterized as follows : a) in the abdominal cavity—the mean dose from the radioactivity ac cumulated in the gastro-intestinal tract, calculated according to the volume of the abdominal cavity; b) in the thoracic cavity—the mean dose from radioactivity in the whole body, including the gastro-intestinal tract, calculated for the volume of the whole body. 59 37 Body Radiation Dose in Rabbits c) in the head organs—the mean dose from radioactivity in the body without the gastro-intestinal tract, calculated according to its volume.
The maximal frequency of stimulation which produces re arrangement of cortical rhythms corresponding in frequency, both in the control group and in the experimental animals prior to 5 9 Fe administration, did not usually exceed 7-8 (rarely 9) per sec. Wave amplitude and index of following in one and the same rabbit in different experiments could change significantly. But the upper limit at which following occurred was fairly stable and in the control animals varied so little over a period of 3-4 months that we felt justified in taking this value as a confirmed characteristic.