Studies on staphylococcal coagulase and phosphatase
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چکیده
منابع مشابه
Purification of staphylococcal coagulase.
Correlation between the pathogenicity of certain staphylococci and their ability to produce coagulase has led to extensive studies of the clotting enzyme. Walston (1935) precipitated the clotting substance from cell-free filtrates of appropriate staphylococcal cultures by the use of ethanol, acetic acid, or ammonium sulfate. Walker et al. (1948) partially purified staphylocoagulase by repeated ...
متن کاملStaphylococcal coagulase; mode of action and antigenicity.
Different strains of staphylococci vary in ability to produce free coagulase. Methods are given for the selection of suitable strains and for the production and concentration of coagulase from one of them. Of animal plasmas examined, cow, sheep, dog, guinea-pig and mouse showed a relative deficiency in coagulase activator, while plasma of man, monkey, horse, cat, pig, fowl and rabbit contained ...
متن کاملStudies on the Coagulase-reacting Factor
Among the diverse views which have been advanced to explain the mechanism of the clotting of blood by staphylocoagulase, it has been suggested that coagulase acts directly on fibrinogen,4"3 or that it is a proteolytic enzyme,3 similar to trypsin, which activates prothrombin. Recently, however, the enzymic nature ofcoagulase has been questioned.12 Smith and Hale,' in a significant contribution, ...
متن کاملRapid Method of Determining Coagulase Activity during Staphylococcal Bacteriophage Typing.
The plate test, a modification of the slide test described by Cadness-Graves was developed for the rapid identification of coagulase-positive staphylococci in conjunction with bacteriophage typing. An evaluation of 1,145 cultures by three coagulase-determination methods, the slide, tube, and plate tests, indicates that the plate test is as accurate as the slide tests, and the plate test agrees ...
متن کاملDrug-resistant coagulase-negative staphylococcal endophthalmitis following dexamethasone intravitreal implant
A 60-year-old female came to our hospital with defective vision due to persistent diabetic macular edema and was treated with intravitreal ozurdex implant in the right eye. Three days later, the patient presented with diminution of vision, ocular pain, congestion, and hypopyon with no fundus view. B-scan ultrasonography showed vitritis, and diagnosis of endophthalmitis was made. Subsequently, 2...
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ژورنال
عنوان ژورنال: Nippon Saikingaku Zasshi
سال: 1958
ISSN: 1882-4110,0021-4930
DOI: 10.3412/jsb.13.1017