Staphylococcal Enterotoxin B and Related Pyrogenic Toxins
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منابع مشابه
Pyrogenic specificity of streptococcal exotoxins, staphylococcal enterotoxin, and gram-negative endotoxin.
Streptococcal exotoxin and staphylococcal enterotoxin share several biological properties, including pyrogenicity, lymphocyte mitogenicity, and enhancement of gram-negative endotoxin lethality. These analogies of the toxins prompted comparative pyrogenic studies. When American Dutch rabbits were immunized by repeated intravenous injections of small amounts of staphylococcal enterotoxin, they ex...
متن کاملPyrogenic responses to staphylococcal enterotoxins A and B in cats.
Pyrogenic responses, ranging up to 4.8 F, were induced in cats by oral administration of highly purified staphylococcal enterotoxin B in doses from 10 to 100 mug/kg. Fever was a more sensitive indicator of intoxication than was emesis. Highly purified preparations of enterotoxin A, whether administered intravenously (0.01 to 1.0 mug/kg), orally (10 to 25 mug/kg), or into the cerebral ventricles...
متن کاملBiological and immunological properties of the carboxyl terminus of staphylococcal enterotoxin C1.
Comparisons of recently published primary sequences of staphylococcal and streptococcal pyrogenic toxins prompted an evaluation of biological and immunological properties of the C terminus of staphylococcal enterotoxin C1. The 59 N-terminal amino acids were deleted from the toxin by digestion with trypsin. The resulting fragment (Mr, 20,659) contained the remaining 180 C-terminal residues. This...
متن کاملجستجوی توکسینهای استافیلوکوکی (توکسین شوک توکسیک، انتروتوکسینهای آ، بی، سی، دی) در مایع گوش میانی بیماران مبتلا به اوتیت مدیا همراه با افوزیون: گزارش کوتاه
Background: Staphylococcal superantigens (SAg;aposs) may have some role in otitis media with effusion (OME). The aim of this study was the search of staphylococcal SAg;aposs in middle ear effusion of children with OME. Methods: This cross sectional-analytic study was done in ENT & pediatric wards upon 64 children with otitis media with effusion (OME) between 1-15 years, (mean age=7.42+4 years)...
متن کاملChange in the Expression of BAK، FAS، BAX، TNF-A، BCL-2 and Survivin Apoptosis Genes of the Human Breast Adenocarcinoma Cells (MCF-7) by Staphylococcal Enterotoxin B
Introduction: Breast cancer is one of the most prevalent malignancies among women. Patients whose suffering from this condition, as a result of the use of conventional therapies often have a poor response to treatment and the relapse among them is frequent. In this study, the effects of staphylococcal enterotoxin type B on BAK، FAS، BAX، TNF-a، BCL-2 و Survivin genes expression in human breast ...
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