[Experience with selenium used to recover adrenocortical function in patients taking glucocorticosteroids long].

Aim: To study the effect of selenium on adrenocortical function in patients taking glucocorticosteroids (GCS) long.

Subjects And Methods: The study included 56 patients who had been long taking oral GCS for the underlying disease. Adrenocortical function was evaluated by a short synacthen test; adrenal insufficiency (mean cortisol level 8.

[Interactions in the system of copper ion-azalide (azithromycin)].

Interactions in the bio-inorganic systems of the copper ions and azalide (azithromycin) were analyzed by spectroscopic methods (atom-absorption spectroscopy, IR and UV spectrometry in the visible spectrum) and electrochemical methods (potentiometry). The system samples within molar ratios of the metal ion and ligand of 10:1 to 1:10 and wide pH ranges were tested. Formation of a compound consisting of the metal ion and ligand at a ratio of 1:1 was detected.

[Reaction of fluorescein bimercuric acetate with a molybdenum center of xanthine oxidase from milk].

Inhibition of milk xanthine oxidase by fluorescein bimercuriacetate (FMA) allows for the classification of S-containing groups according to their localization and role in the catalytic activity of the enzyme. The enzyme (E) complexes with FMA (E--FMA I and E--FMA II) differing in their activity, stoichiometry and spectral properties were studied at various experimental conditions, reaction time and FMA concentrations. The enzyme molecule contains 5 groups that are reactive towards FMA (E--FMA I) and are localized outside the active center.