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15 resultados
Epidemiologic Investigation of a Cluster of Neuroinvasive Bacillus cereus Infections in 5 Patients With Acute Myelogenous Leukemia.
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Background. Five neuroinvasive Bacillus cereus infections (4 fatal) occurred in hospitalized patients with acute myelogenous leukemia (AML) during a 9-month period, prompting an investigation by infection control and public health officials. Methods. Medical records of case-patients were reviewed
Sequential secretion of collagenolytic, elastolytic, and keratinolytic proteases in peptide-limited cultures of two Bacillus cereus strains isolated from wool.
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OBJECTIVE
To characterize the secretion of proteolytic activities against keratin, collagen and elastin in liquid cultures of Bacillus cereus IZ-06b and IZ-06r isolated from wool.
RESULTS
Growth of B. cereus IZ-06b and IZ-06r were characterized in batch culture. Both strains needed an organic
Bacillus cereus: the forgotten pathogen.
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BACKGROUND
Infection with Bacillus cereus is generally associated with gastrointestinal effects of food poisoning linked to infected rice. Isolates of B. cereus in hospital and clinical settings from any material other than vomitus or feces are commonly dismissed as contaminants.
METHODS
We report a
Combined effects of ultrasound and surfactants to reduce Bacillus cereus spores on lettuce and carrots.
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This study was performed to compare the effectiveness of ultrasound treatment singly and in combination with surfactants as an alternative method to conventional sanitizers containing chlorine for reducing numbers of Bacillus cereus spores on fresh produce. A cocktail of three strains of B. cereus
Synergistic Effects of Mild Heating and Dielectric Barrier Discharge Plasma on the Reduction of Bacillus Cereus in Red Pepper Powder.
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The synergistic efficacy of a combined treatment of mild heat (MH) and dielectric barrier discharge (DBD) plasma in Bacillus cereus-contaminated red pepper powder was tested. A cocktail of three strains of B. cereus (NCCP 10623, NCCP 14579, ATCC 11778) was inoculated onto red pepper powder and then
Molecular cloning and characterization of the hblA gene encoding the B component of hemolysin BL from Bacillus cereus.
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Previous evidence suggests that hemolysin BL, which consists of a binding component, B, and two lytic components, L1 and L2, is the enterotoxin responsible for the diarrheal form of gastroenteritis caused by food-borne strains of Bacillus cereus. To prove that hemolysin BL and the enterotoxin are
Inactivation of Bacillus cereus spores in a tsuyu sauce using continuous ohmic heating with five sequential elbow-type electrodes.
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OBJECTIVE
The effect of ohmic heating (OH) in a pilot plant system which had a zig-zag shaped (elbow-type) ohmic heater with five sequential voltage electrodes was investigated on Bacillus cereus spores in a commercial tsuyu sauce.
RESULTS
The electrical field was fixed at 26·7 V cm(-1) with an
An autopsy case of food poisoning associated with Bacillus cereus.
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An autopsy case of food poisoning probably caused by Bacillus cereus is presented. The patient was an 11-year-old boy who died about 15 hours after eating Chinese noodles. The main pathological features were acute nonspecific gastroenteritis and fatty degeneration of the heart and liver. Bacillus
Mechanisms of Bacillus cereus enteropathy.
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Three strains of Bacillus cereus isolated from sausages (Salami and Trekker, RANBAC, Ranchi) produced enterotoxin which caused vascular permeability in skin and haemorrhage in the ligated ileal loops of rabbits. Histopathological studies revealed haemorrhage and congestion in submucosa, mononuclear
Bacillus cereus endophthalmitis following intravitreous bevacizumab injection.
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The first case of Bacillus cereus endophthalmitis following an intravitreous injection of bevacizumab is described. A 77-year-old man presented to a retina specialist with an active choroidal neovascularization related to age-related macular degeneration for which he received intravitreous
Production, process optimization and molecular characterization of polyhydroxyalkanoate (PHA) by CO2 sequestering B. cereus SS105.
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Carbon dioxide sequestering bacterial strains were previously isolated from free air CO2 enriched (FACE) soil. In the present study, these strains were screened for PHA accumulation and Bacillus cereus SS105 was found to be the most prominent PHA accumulating strain on sodium bicarbonate and
Decontamination of Mesquite Pod Flour Naturally Contaminated with Bacillus cereus and Formation of Furan by Ionizing Irradiation.
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Mesquite pod flour produced from nitrogen-fixing trees of the Prosopis species has a unique aroma and flavor that is preferred by some consumers. Due to the presence of wildlife, grazing domestic animals, and insects, the pods have a high potential of being contaminated with human pathogenic
Pathological effect of synthetic cereulide, an emetic toxin of Bacillus cereus, is reversible in mice.
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Cereulide is the causative toxin of the emetic type of food-borne illness caused by Bacillus cereus. This toxin was previously shown to be associated with fulminant liver failure in a human case. Mice were injected i.p. with synthetic cereulide and the development of histopathological changes was
The inhibition mechanism of ε-Polylysine against Bacillus cereus emerging in surimi gel during refrigerated storage.
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BACKGROUND
Refrigeration is a common method in the process and storage of surimi products. However, refrigerated surimi products are susceptible to microbial contamination, that lead to deterioration of products and shorten the shelf life. Therefore, the aims of the present study were to evaluate
Identification and partial characterization of the nonribosomal peptide synthetase gene responsible for cereulide production in emetic Bacillus cereus.
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Cereulide, a depsipeptide structurally related to valinomycin, is responsible for the emetic type of gastrointestinal disease caused by Bacillus cereus. Due to its chemical structure, (D-O-Leu-D-Ala-L-O-Val-L-Val)(3), cereulide might be synthesized nonribosomally. Therefore, degenerate PCR primers
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