10 nəticələr
Unlike other Salmonella, which can infect a broad range of hosts causing self-limiting infection, Salmonella Typhi is an exclusively human pathogen that causes typhoid fever, a life-threatening systemic disease. Typhoid toxin is a unique virulence factor of Salmonella Typhi, which is expressed when
The contribution of muramidase-released protein (MRP) and extracellular factor (EF) to the virulence of Streptococcus suis type 1 and 2 infections was studied. For that aim, we constructed mutants of S. suis types 1 and 2 by inactivating the genes encoding MRP and EF. Moreover, we changed a type 2
Typhoid toxin is a virulence factor for the bacterial pathogen Salmonella Typhi, which causes typhoid fever in humans. After its synthesis by intracellular bacteria, typhoid toxin is secreted into the lumen of the Salmonella-containing vacuole by a secretion mechanism strictly
Protein secretion mechanisms are essential for the virulence of most bacterial pathogens. Typhoid toxin is an essential virulence factor for Salmonella Typhi, the cause of typhoid fever in humans. This toxin is unique in that it is only produced within mammalian cells, and it must be trafficked to
A regimen of intravenous cyclophosphamide, cytarabine and vincristine, given over a four-day period and repeated every two to three weeks, was used to treat 33 patients with acute myeloblastic leukemia. Of the 30 evaluable patients 9/18 previously untreated patients achieved complete remission and
Streptococcus suis is a zoonotic pathogen that can be transferred from pigs to humans. The serotypes 2 and 14 are prevalent among patients with S. suis infections, while other serotypes (i.e., 1, 4, 5, 16, and 24) have been detected in rare human cases. To the best of our knowledge, the present
Infusion of cycloheximide i.v., an antibiotic known to inhibit synthesis of protein, at a rate of 0.2 mg/kg/hr, reliably caused lysis of fever in 15 chronically febrile patients with Hodgkin's disease who did not have detectable bacterial, fungal, or viral infection. Antipyretic effects were also
Two patients with systemic angioendotheliomatosis had prominent constitutional symptoms such as fever, loss of weight, and general weakness, and had multiple organ dysfunctions, including bizarre neurologic findings and dementia. Severe anemia that required frequent blood transfusions also was
Cell-wall-deficient (CWD) forms of bacteria are associated with certain cases of idiopathic septicemia. In this preliminary study of blood examined immediately after venipuncture, structures with a morphology characteristic of CWD forms were seen parasitizing the erythrocytes. These inclusions were
To determine whether the virulence of Streptococcus suis type 2 is associated with the phenotype of the strain, we infected newborn germfree pigs with 10 strains of S. suis type 2 categorized by three phenotypes. In an earlier study, the phenotypes were distinguished by the presence or absence of