Leukemia is characterized by a neoplastic and malignant growth of cells deriving from the hematopoietic organ. The present investigation is an attempt to evaluate the growth activity of leukemia cells in quantitative terms for comparison with the growth of the homologous, normal hematopoietie cells. Virus-induced erythroleukemia in chicken provided the experimental material. Two different syste...

Leukemia is characterized by a neoplastic and malignant growth of cells deriving from the hematopoietic organ. The present investigation is an attempt to evaluate the growth activity of leukemia cells in quantitative terms for comparison with the growth of the homologous, normal hematopoietie cells. Virus-induced erythroleukemia in chicken provided the experimental material. Two different syste...

A mix of biocompatible macromolecules (poly(vinyl alcohol) (PVA) and poly(vinyl pyrrolidone) (PVP)) has been shown previously to enhance the physical stability of non-aqueous pharmaceutical suspensions. The aim of this work was to assess the feasibility of employing such a combination to facilitate the formulation of deoxyribonuclease I (DNase I) in a metered dose inhaler (MDI) using hydrofluor...

Enzymes of the DNase I class, similar to bovine pancreatic DNase I with respect to molecular weight and ionic and pH requirements, were found in various tissues of the rat. Their analysis was facilitated by a method for detection of nucleases in crude extracts after polyacrylamide gel electrophoresis in the presence of sodium dodecyl sulfate and subsequent renaturation of the enzymes. High leve...

BACKGROUND Candida species, in conditions of microbiota imbalance or decreased immune defenses, may be one of the main human fungal pathogens. Virulence factors constitute the mechanisms used by the fungus to avoid host defenses. AIMS This study aimed to investigate the in vitro production of virulence factors, such as hemolytic activity, and deoxyribonuclease (DNase), proteinase, and phospho...

Four groups of deoxyribonuclease activities from human lymphocytes have been characterized by deoxyribonuclease assay in DNA-containing polyacrylamide gels following their separation by disc-electrophoresis. All activities hydrolyse DNA endonucleolytically. One neutral deoxyribonuclease found in the cytoplasmic fraction prefers native or UV-irradiated DNA over denatured DNA as substrate and is ...

One of the approaches to effective airway cleansing is the degradation of DNA into smaller fragments. For this purpose Pulmozyme® is used with high efficacy because it contains recombinant DNase I as its active component. The aim of the study was to comparatively analyze DNase activity of Pulmozyme® and the nuclease from gram-negative bacteria Serratia marcescens, because at optimal conditions ...

In speculating upon the probable role of desoxyribonuclease (DNase) in the depolymerization of desoxyribonucleic acid (DNA), which characterizes (1) the "lupus erythematosus (L.E.) cell" (2), we have suggested (3), as have Klemperer and his associates (4), that an increased serum enzyme activity, potentiation of an intracellular DNase, or destruction of an intracellular inhibitor of DNase by a ...

DNase I from rabbit urine was purified approx. 3600-fold to apparent homogeneity with a 41% yield by affinity chromatography utilizing DNA-cellulose; the purity of the final preparation was assessed by SDS/PAGE, lack of contamination by other nucleases and production of a monospecific antibody against the enzyme. Although the proteochemical and enzymological properties of the purified enzyme re...