HYALURONIDASES OF BACTERIAL AND ANIMAL ORIGIN
نویسندگان
چکیده
منابع مشابه
Hyaluronidases of Bacterial and Animal Origin
Hyaluronidase has been investigated in various strains of pneumococci and hemolytic streptococci, and in some material of animal origin. The enzyme activity was measured by a viscosimetric method using as a substrate a fluid containing hyaluronic acid as the viscous component, and by the hydrolysis of pure hyaluronic acid into its reducing components. In pneumococci the enzyme was demonstrated ...
متن کاملThe production of unsaturated uronides by bacterial hyaluronidases.
Hyaluronic acid (HA)’ is a polysaccharide composed of equimolar amounts of n-glucuronic acid and N-acetylglucosamine. The basic repeating unit of the straight chain polymer is the disaccharide, N-acetylhyalobiuranic acid (3P-D-glucuronopyranosyl-N-acetylglucosamine (3)). The polysaccharide is hydrolyzed by enzymes from various sources such as mammalian testis, bacteria, snake venom, and others....
متن کاملThe growing threat of foodborne bacterial enteropathogens of animal origin.
Campylobacter and Salmonella species and Shiga toxin-producing Escherichia coli (STEC; the majority of which are type O157:H7) efficiently enter the human food chain from infected or colonized animals. Poultry contamination with Campylobacter and/or Salmonella species and produce contamination with STEC have become major public health challenges. The global food supply, which allows us to purch...
متن کاملPreventive Effect of Novel Bacterial Polysaccharide and Animal Splenic Protein as Natural Adjuvants on Animal Model of Asthma
Objective(s) Two new adjuvants from natural animal lipids (G2) and bacterial polysaccharide extracts (PC) were previously prepared by our group and showed a reduction in tracheal responsiveness. The aim of this study was to evaluate the preventive effect of recently introduced natural products (G2 and PC) on the development of asthma. Materials and Methods Asthma was induced using a standard...
متن کاملStudies of inhibitors of bacterial and other hyaluronidases. I. Specific and nonspecific serum inhibitors.
There are two types of hyaluronidase inhibitor in noimal human serum; one is destroyed when the serum is heated at 55 C to 60 C for 15 to 30 min, the other is not (Thompson and Moses, 1949). The heat-labile inhibitor, referred to as the nonspecific inhibitor (NSI), is present in the serum of many different species and inhibits testicular and several bacterial hyaluronidases (Haas, 1946). The re...
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ژورنال
عنوان ژورنال: Journal of Experimental Medicine
سال: 1941
ISSN: 1540-9538,0022-1007
DOI: 10.1084/jem.73.3.309