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Biomedical subjects

A A Silaev

Publications and source records attributed to A A Silaev.

16 recordsLinked to original sources
PubMed1992

[The late effects of exposure to lead fluoride].

Effect of lead fluoride dust on the micronuclear reticulocyte content in the bone marrow was shown. Some functional changes in the testicles and increase in the fetal death rate in exposure to 50 mg/m3 of lead fluoride dust were noted.

Aerosols↗
PubMed1992

[Magnesium sulfate as an industrial poison].

The article provides information on the hygienic assessment of the labour conditions in magnesium sulphate processing, along with the experimental data on the toxicity of this chemical compound at different ways of its penetration into human body, and describes the damaging mechanisms of its action. The toxicity parameters were related to the 4th class of hazardousness (GOST 12.1.007-76). The acute inhalational action threshold was determined at 112.7 mg/m3. The chemical substance did not exhibit any irritating action on the skin and mucosae, but was capable of penetrating through the undamaged skin and cause some functional disorders. The chronic inhalational action threshold was assessed at 10.2 mg/m3. Magnesium sulphate did not display any specific cardiotoxic or gonadotrophic action. MAC in the air in working zone areas was established at 2 mg/m3. Lesions of the liver were the major factor in the pathogenesis of intoxications.

Administration, Inhalation↗
PubMed1991

[Operations on the coronary arteries of the working heart without using an apparatus for extracorporeal circulation].

Operations for aorto-coronary shunting and mammary-coronary shunting on a working heart were carried out without the use of a heart-lung machine in 19 patients with various forms of unstable angina pectoris in early periods (7 to 30 days) after the onset of the disease and in high left-ventricular end-diastolic pressure. There were no fatal outcomes. The post-operative follow-up periods ranged from 4 weeks to 2.5 years.

Adult↗
PubMed1977

[Electron microscopic study of the seminiferous tubules of white rats exposed to boric acid].

Boric acid in a dose of 1 g/kg was given orally to albino rats for a period of 2 weeks, daily. Changes in the nucleus and the cytoplasm of both the spermatozoids and spermatides were revealed at the early stages of their formation. The appearance of numerous multinuclear cells with an even and odd number of nuclei (from 2 to 10 and over) was noted. The formation of multinuclear cells can be apparently attributed to the action of boric acid on the prolonged processes of meiotic division of the spermatogenic epithelium cells (spermatocytes, spermatides).

Animals↗