نتایج جستجو برای: b melitensis
تعداد نتایج: 900183 فیلتر نتایج به سال:
Bacterial small non-coding RNAs (sRNAs) are gene expression modulators respond to environmental changes, stressful conditions, and pathogenesis. In this study, by using a combined bioinformatic and experimental approach, eight novel sRNA genes were identified in intracellular pathogen Brucella melitensis. BSR0602, one sRNA that was highly induced in stationary phase, was further examined and fo...
Brucella melitensis, one of the causative agents of human brucellosis, causes acute, chronic, and relapsing infection. While T cell immunity in brucellosis has been extensively studied in mice, no recognized human T cell epitopes that might provide new approaches to classifying and prognosticating B. melitensis infection have ever been delineated. Twenty-seven pools of 500 major histocompatibil...
Brucella melitensis biotype 1 was isolated in pure culture from the lungs, liver, spleen, kidney, stomach contents, abomasum and brain of an aborted caprine (Boer goat) foetus in the district of Cullinan near Pretoria. The 18 does and 1 ram in the flock of Boer goates were examined serologically by means of the complement fixation (CF) test, using Brucella abortus antigen. Six weeks later they ...
Brucella abortus and B. melitensis antigens were used in parallel on the National Standard Brucella abortus antiserum and on field sera coming from cattle where practically exclusively B. abortus biotypes 1 and 2 have been isolated over the last 11 years. With the National Standard serum the titres to B. melitensis were consistently lower than those to B. abortus antigen. Most were 1 dilution (...
Cytokine response and clinicopathological findings in Brucella infected camels (Camelus dromedarius)
The present study had the aim of assessing the cytokine response and selected clinicopathological findings associated with brucellosis in camels (Camelus dromedarius). 340 dromedary camels were examined for brucellosis using agglutination and Complement Fixation tests (CFT). Twenty-five camels (7.35%) were positive by both tests; 14 (4.12%) for B. abortus and 11 (3.23%) for B. melitensis. IL-1β...
BACKGROUND The Qinghai-Tibet Plateau (QTP) of China is an extensive pastoral and semi-pastoral area, and because of poverty and bad hygiene conditions, Brucella is highly prevalent in this region. In order to adequately prevent this disease in the QTP region it is important to determine the identity of Brucella species that caused the infection. METHODS A total of 65 Brucella isolates were ob...
Brucella melitensis is a facultative intracellular pathogen which is able to survive and replicate within phagocytic cells. Therefore, it has to adapt to a range of different hostile environments. In order to understand the mechanisms of intracellular survival employed by virulent B. melitensis 16M, an initial approach consisting of analysis of the differences in patterns of protein synthesis i...
El diagnóstico de laboratorio de brucelosis es generalmente realizado por métodos microbiológicos y serológicos. La prueba PCR es reconocida como una alternativa específica y sensible para la detección de diferentes agentes bacterianos. Se realizó una evaluación de la prueba PCR para la detección de ADN de Brucella melitensis en leche de oveja. Ciento dos muestras tomadas de ovejas postaborto f...
مقدمه و هدف: بروسلوز بیماری ناتوان کننده ای است که و هزینه گزافی را بر اقتصاد و اجتماع تحمیل می کند . بنابراین استفاده از بهترین ، دقیق ترین و به صرفه ترین روش برای تشخیص این بیماری ضروری می باشد . عامل شایع بروسلوز در ایران B. melitensis بوده و پروتئین BP26 این باکتری خاصیت آنتی ژنیسیته خوبی دارد. بنابراین هدف از این تحقیق تولید پروتئین BP26 نوترکیب از باکتریB. Melitensis توسط وکتور بی...
In China, brucellosis is an endemic disease and the main sources of brucellosis in animals and humans are infected sheep, cattle and swine. Brucella melitensis (biovars 1 and 3) is the predominant species, associated with sporadic cases and outbreak in humans. Isolates of B. abortus, primarily biovars 1 and 3, and B. suis biovars 1 and 3 are also associated with sporadic human brucellosis. In t...
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