نتایج جستجو برای: nocardia asteroids
تعداد نتایج: 6412 فیلتر نتایج به سال:
Background & Aims: Nocardia are gram-positive, aerobic, relative acid-fast, and opportunistic bacteria, and one of the causes of systematic infection around the world. The natural habitats of these bacteria are soil and dust. Hospitalized patients with immune deficiency are at high risk of transmission of opportunistic infection. Due to these facts and the complexities that exist in the isolati...
Background & Aims: Nocardia are gram-positive, aerobic, relative acid-fast, and opportunistic bacteria, and one of the causes of systematic infection around the world. The natural habitats of these bacteria are soil and dust. Hospitalized patients with immune deficiency are at high risk of transmission of opportunistic infection. Due to these facts and...
مقدمه: جنس نوکاردیا جزو اکتینومیستهای هوازی هستند که یک گروه بزرگ از باکتریهای ساکن خاک را شامل میشوند، که در جهان پخش شدهاند. در این مطالعه، با استفاده از آزمونهای تشخیصی رایج، مرسوم و مولکولی گوناگون، چندین ایزولههای نوکاردیا جداسازی و تشخیص داده شد. مواد و روش ها: در این پژوهش، برای جداسازی از خاک، روش Slip-buried و برای استخراج DNA، روش Microwave oven استفاده شد و در این روشها، سو...
BACKGROUND Nocardia sp. causes a variety of clinical presentations. The incidence of nocardiosis varies geographically according to several factors, such as the prevalence of HIV infections, transplants, neoplastic and rheumatic diseases, as well as climate, socio-economic conditions and laboratory procedures for Nocardia detection and identification. In Brazil the paucity of clinical reports o...
introduction: nocardia is saprophytic soil bacterium of the actinomycetes families. nocardia has high diversity of species and due to species diversity of nocardia, phenotypic tests are essential for early identification of nocardia species. methods: 155 soil samples from different regions of north khorasan province in iran were collected, including: urban and rural areas. isolation of nocardia...
We studied five strains of a new Nocardia taxon recently identified among Nocardia brasiliensis strains associated with invasive diseases (R. J. Wallace, Jr., B. A. Brown, Z. Blacklock, R. Ulrich, K. Jost, J. M. Brown, M. M. McNeil, G. Onyi, V. A. Steingrube, and J. Gibson, J. Clin. Microbiol. 33:1528-1533, 1995) to determine their taxonomic status. Several characteristics of these organisms, i...
Background: Nocardia asteroides complex is aerobic actinomycete, partially acid-fast and Gram –positive which rarely cause ocular infections especially in immunodeficient persons. Case Presentation: An 83-year-old man with diabetes presented with nasolacrimal duct obstruction to Labbafinejad Hospital Tehran –Iran. According to the clinical examination and microbial assessment cause ...
Two strains of Nocardia spp. were isolated from bovine milk of two individual bulk tank. Molecular identification classified the strains as Nocardia farcinica and Nocardia cyriacigeorgica. The thermorresistance to boiling of the isolates was carried out and was observed bacterial growth after boiling. Our findings indicate the potential risk of pathogen transmission to humans through contaminat...
Twenty-one strains of Nocardia amarae and marker cultures of Mycobacterium, Nocardia, Rhodococcus and the 'aurantiaca' taxon were subjected to numerical phenetic analyses using 92 unit characters. The data were examined using the simple matching (SSM), Jaccard (SJ) and pattern (DP) coefficients and clustering was achieved using the unweighted average linkage algorithm. Neither cluster nor aggre...
While 16S rRNA sequence-based identification of Nocardia species has become the gold standard, it is not without its limitations. We evaluated a novel approach encompassing the amplification of the Nocardia 16S-23S rRNA intergenic spacer (IGS) region followed by fragment analysis by capillary gel electrophoresis (CGE) of the amplified product for species identification of Nocardia. One hundred ...
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