| Autor: |
Liubin GS; Department of Biological Tests, Academy of Sciences of Belarus, Minsk, Belarus., Konoplia NA, Guliakevich OV, Kuz'mitskiĭ BB |
| Jazyk: |
ruština |
| Zdroj: |
Eksperimental'naia i klinicheskaia farmakologiia [Eksp Klin Farmakol] 2000 Jul-Aug; Vol. 63 (4), pp. 45-7. |
| Abstrakt: |
The immunopharmacological properties of two new compounds with an 8-azasteroidal structure, representing the salts (hydrochloride and acetate) of 12-imino-substituted 8-aza-D-homogonan, were studied in comparison with the properties of the immunostimulant trimeson. Similar to trimeson, both new compounds produce a dose-dependent activation of the humoral chain of immunogenesis in the model of primary immune response to goat erythrocytes in CBA, C57BL/6, and C57W mice. The immunostimulant activity of the 8-aza-D-homogonan derivatives is inversely proportional to the antigen load (2 x 10(7)-2 x 10(9) goat erythrocytes per mice) and depends to a considerable extent of the genotype of experimental animals. A modification of the 8-aza-D-homogonan structure by substituting imino group for oxygen at position 12 of the 8-azasteroidal skeleton leads to a sharp increase in toxicity as compared to that of trimeson. |
| Databáze: |
MEDLINE |
| Externí odkaz: |
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