PubMed Health⌕ Search

Biomedical subjects

D N Ibadova

Publications and source records attributed to D N Ibadova.

8 recordsLinked to original sources
PubMedDate not supplied

[Immunity induced by immunomodulators during echinococcal immunosuppression].

The echinococcal immunosuppression induced in experimental mice by a human parasite strain is accompanied by immunosuppression, whereby the administration of immunomodulants favors normalization of the cell and humoral immunity chains. Among a series of preparations studied, the best results were obtained for polyoxidonium: in the case of immunosuppression induced by cyclophosphan, polyoxidonium administration led normalization of the cell and humoral immunity and the phagocytosis of neutrophils and macrophages.

Adjuvants, Immunologic↗
PubMedDate not supplied

[Role of the hydrophobicity of monoquaternary ammonium compounds in the mechanism of their curariform action].

The lengthening of the alkyl radical at the quaternary nitrogen atom (from -C2H5 to -C20H41) in the series of alkyltrimethylammonium compounds was found to lead to a gradually growing hydrophobicity of the compound. A change in the mechanism responsible for the myoparalytic action of the compound is due to a mounting degree of hydrophobicity. With the methyl group in the molecule of tetramethylammonium replaced with polyalicyclic radicals (bornyl, adamantyl) the compound, acting after a non-depolarizing type, possess a greater degree of hyrophobicity than do substances of the depolarizing type.

Alkylation↗
PubMedDate not supplied

[Role of the hydrophobicity of polymethylene-bis-quaternary ammonium compounds in the mechanism of their curare-like action].

Lengthening of the N-alkyl radical (from--C2H5 to C10H21) in the series of polymethylene-bis-quaternary ammonium compounds was found to result in an increased hydrophobic properties of the compounds. In the presence of the N-butyl radical the mode of the action exerted by the substances changes, viz. from depolarizing they turn into antidepolarizing ones. A substitution of polyalicyclic radicals (cyclohexyl, 1-adamantyl) for methyl groups at the nitrogen atoms in the series of polymethylene-bis-quaternary ammonium compounds proved that in order to changed the mode of action hydrophobic properties of the cyclohexyl radicals appear to be good enough.

Animals↗