منابع مشابه
Anti-streptolysin O titre in rheumatic carditis.
The definition of rheumatic fever has been broadened of recent years and many people take it to include not only articular and skin manifestations but also all those signs that are commonly regarded as evidence of an active carditis. While this conception may be pathologically correct and at times convenient in use, it is clear that there are many cases of rheumatic fever where there is no proo...
متن کاملIsolation and identification of two hemolytic forms of streptolysin-O.
Streptolysin-O was isolated from culture supernatants of group-A beta-hemolytic streptococci (Richards strain) by ammonium sulfate and polyethylene glycol precipitation, DEAE-ion exchange chromatography, preparative isoelectric focusing, and chromatography on Sephacryl S-300. Two forms of the toxin possessing similar hemolytic capacity were identified. The native toxin was a single polypeptide ...
متن کاملStreptolysin O Inhibits Clathrin-Dependent Internalization of Group A Streptococcus
Group A Streptococcus (GAS) can be internalized by epithelial cells, including keratinocytes from human skin or pharyngeal epithelium. Internalization of GAS by epithelial cells has been postulated both to play a role in host defense and to provide a sanctuary site for GAS survival. The cholesterol-binding cytolysin streptolysin O (SLO) appears to enhance virulence in part by inhibiting GAS int...
متن کاملIdentity of streptolysin-O and NAD-glycohydrolase (EC 3.2.2.5).
The homogeneity of purified NAD-glycohydrolase (EC 3.2.2.5) from Group C streptococci was demonstrated by analytical ultracentrifugation, disc electrophoresis and immunochemical analysis. Together with earlier characterization procedures the data show that the enzyme is homogenous in molecular seize, molecular form and electrophoretic charge. In addition, the enzyme has been shown to possess st...
متن کاملThe production, concentration, and partial characterization of streptolysin O.
Streptolysin 0 is the oxygen-labile hemolysin present in broth filtrates after the growth of hemolytic streptococci. Neill and Mallory (1926) studied the effect of exposure of this lysin to oxygen and reported that, depending on the age of the culture and other factors, Streptolysin 0 existed in broth filtrates in two forms. These were the reduced hemolytically active form and a reversibly oxid...
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ژورنال
عنوان ژورنال: Nippon Saikingaku Zasshi
سال: 1960
ISSN: 1882-4110,0021-4930
DOI: 10.3412/jsb.15.627