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Biomedical subjects

P Velcheva

Publications and source records attributed to P Velcheva.

At least 19 recordsLinked to original sources

[The immunomodulating properties of a macro glycopeptide isolated from serum. II. The activation of macrophages and polymorphonuclear cells].

The stimulating properties of three fractions of a glucomacropeptide consisting of different carbohydrate and peptide components were studied. The phagocytic activity of polymorphonuclears was increased on the 24th hour and of macrophages on the 3rd day after application of the preparations to mice. In vitro fraction 3 stimulates the lysozyme activity and the synthesis of proteins and Clq of the macrophages complement. These properties of the cells are collaborated by the established ultrastructural changes. The different composition of the fractions determines their immunostimulating effect.

Adjuvants, Immunologic↗

[Biochemical research on the neuraminidase of Erysipelothrix rhusiopathiae].

Purified neuraminidase preparation from Erysipelothrix rhusiopathiae is studied biochemically. The main physicochemical characteristics of the enzyme are determined: molecular mass, isoelectric point, electrophoretic mobility, chemical nature, UV spectrum, substrate specificity, etc. The obtained data are compared to those for other bacterial neuraminidases.

Electrophoresis, Polyacrylamide Gel↗