نتایج جستجو برای: pathogenecity
تعداد نتایج: 127 فیلتر نتایج به سال:
IntroductionCoagulase negative Staphylococcus (CoNS), being a part of the commensal flora, have long remained neglected as mere contaminants till their recently reported increased rate of isolation, evidenced their potential as nosocomial pathogens. Treatment is difficult due to confusion in pathogenecity and multi-drug resistance. Aim of the study was to to identify the different species of Co...
BACKGROUND Bupleurum polysaccharides (BPs), isolated from Bupleurum smithii var. parvifolium, possesses immunomodulatory activity, particularly on inflammation. Bacterial endotoxin lipopolysaccharide (LPS) triggers innate immune responses through Toll-like receptor 4 (TLR4) on host cell membrane. The present study was performed to evaluate whether the therapeutic efficacy of BPs on suppression ...
Infectious disease accounts for the major cause of mortality and morbidity in past decays which create a serious and growing concern to treat communicable disease. P. aeruginosa ‘superbug’ responsible for hospital acquired nosocomial infections is versatile gram negative aerobe and pathogenecity caused by this ubiquitous organism is quite difficult to treat due to its rapid developing inherent ...
Bioassays were carried out in the laboratory to determine the virulence of two Beauveria bassiana indigenous isolates on the greater wax moth Galleria mellonella. LC50 and LT50 values were taken as indices for the efficacy of fungal isolates, designated as Bb1 and Bb2, collected from Ismailia governorate in Egypt and isolated from soil and trap larvae of G. mellonella, respectively. The larvae ...
to evaluate pathogenicity of 3 chicken anemia virus isolates-cv1, cv2 and cv3 respectively - the current experiment carried out. after tittering of the viruses, 30 one day old spf chicks were grouped and intramuscularly inoculated with each isolate in a separate group. two other groups as positive and control groups were inoculate with a live vaccine virus and normal saline respectively. during...
BACKGROUND Previous studies have stressed the genetic divergence and high pathogenicity of strains of T. gondii from French Guiana. Although strains from coastal, human adapted environments (so called anthropized) resemble those found in other regions of the Caribbean, strains collected from inland jungle environment are genetically quite diverse. To better understand the composition of these d...
Building up from experimental knowledge of the regulatory network of the pel genes in the bacteria E. chrysanthemi, we propose for the first time a qualitative modeling of the infectious transition of this bacteria when it is hosted in a plant. We show that this infectious transition can be understood as the excitable dynamics of a metabolico-genetic network. Our mathematical model can account ...
Equine influenza viruses (EIV)-H3N8 continue to circulate in equine population throughout the world. They evolve by the process of antigenic drift that leads to substantial change in the antigenicity of the virus, thereby necessitating substitution of virus strain in the vaccines. This requires frequent testing of the new vaccines in the in vivo system; however, lack of an appropriate laborator...
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