نتایج جستجو برای: enterotoxin d

تعداد نتایج: 583093  

Journal: :Infection and immunity 1974
D J Evans D G Evans S L Gorbach

Polymyxin B-induced release of enterotoxin from Escherichia coli strain H-10407 was demonstrated. Incubation of E. coli cells derived from 6-h cultures with polymyxin caused the rapid release of enterotoxin with a molecular weight of approximately 20,000, as estimated by the gel filtration technique. The rapidity of the release of enterotoxin indicates that it probably resides in the periplasmi...

ژورنال: Medical Laboratory Journal 2014
Bahador, N, Dadgar, T, Ghaemi, E, Imani Fooladi, A, Kamareie, F,

Abstract Background and Objective: The main cause of spreading staphylococcal infections among patients is the healthy carriers working in hospitals. With the secretion of different sorts of toxins such as entrotoxin, this bacteria can provide the conditions for attacking on the host. The main objective of this study is identification of the characteristics and differences in the Staphylococc...

Journal: :Journal of clinical pathology 1992
J E Malam G F Carrick D R Telford J A Morris

AIMS To investigate the hypothesis that commonly occurring bacterial toxins cause sudden infant death syndrome (SIDS) by (1), determining in which tissues bacterial toxins are concentrated after intravenous injection in rats; and (2), seeing if the same tissues contain detectable toxins in cases of SIDS. METHODS The tissue distribution of intravenously injected staphylococcal enterotoxin A (S...

Journal: :The Journal of Experimental Medicine 1973
Nathaniel F. Pierce

Natural cholera toxoid appears to act as a competitive inhibitor of cholera enterotoxin and is thus a useful tool for studying the interaction of cholera enterotoxin with cell membranes. Cholera enterotoxin binds to gut mucosa more rapidly than does its natural toxoid. Once binding occurs, however, it appears to be prolonged for both materials. Formalinized cholera toxoid has no inhibitory effe...

Journal: :The Journal of biological chemistry 1976
L Spero B Y Griffin J L Middlebrook J F Metzger

Two peptide bonds of staphylococcal enterotoxin C, were hydrolyzed concurrently at quite different rates during limited digestion with trypsin. A Lys-Val at about position 92 in the disulfide loop was the first bond cleaved, followed by a Lys-Asx at about position 57 on the NH2-terminal side of the loop. Preparations of singly cleaved material (enterotoxin C1-T1) contained about 93% of the clea...

Journal: :acta medica iranica 0
mohammad reza pourmand department of pathobiology, school of public health, tehran university of medical sciences, tehran, iran. mojtaba memariani department of pathobiology, school of public health, tehran university of medical sciences, tehran, iran. mostafa hoseini department of epidemiology and biostatistics, school of public health, tehran university of medical sciences, tehran, iran. sahar bagherzadeh yazdchi department of pathobiology, school of public health, tehran university of medical sciences, tehran, iran.

staphylococcus aureus is a major human pathogen producing different types of toxins. enterotoxin a ( sea ) is the most common type among clinical and food-related strains. the aim of the present study was to examine the prevalence of sea in clinical isolates of s. aureus . moreover, the correlation between sea producing strains and type of infection as well as resistance to antibiotics is also ...

Journal: :cell journal 0

objective: the role of staphylococcal enterotoxin b (seb) in food poisoning is well known, however its role in other diseases remains to be explored. the aim of this study is the molecular screening and characterization of the seb gene in clinically isolated strains. materials and methods: in this experimentally study, 300 staphylococcus aureus (s. aureus) strains isolated from clinical samples...

Journal: :Infection and immunity 1975
L Nilo

Enterotoxin of Clostridium perfringens was assayed and compared with toxicity in mice and erythemal activity in guinea pigs. Conversion factors were used to express these biological activities of crude enterotoxin in terms of weight of pure enterotoxin protein. One microgram of enterotoxin was equivalent to 3.41 erythema units and to 0.68 mouse median lethal dose.

Journal: :Journal of clinical microbiology 1984
B A McClane R J Strouse

Clostridium perfringens type A enterotoxin was specifically detected and readily quantified by indirect and four-layer sandwich enzyme-linked immunosorbent assays (ELISAs). With the indirect ELISA, enterotoxin was detected in quantities of as low as 2.5 ng (25 ng/ml). When the more sensitive sandwich ELISA procedures was used, 100 pg (1 ng/ml) of enterotoxin was detected. The sandwich ELISA pro...

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید