نتایج جستجو برای: m bovis
تعداد نتایج: 543146 فیلتر نتایج به سال:
253 usually appears after contact with infected animals or ingestion of contaminated milk; dissemination from a pulmonary focus is less common. Mycobacterium bovis is a member of the M tuberculosis complex, which includes the species M tuberculosis, M bovis, Mycobacterium africanum, Mycobacterium microti, and Mycobacterium canetti, 8 the causative agents of tuberculosis in humans and animals. O...
The aim of this study was to investigate the molecular characteristics and to conduct a comparative genomic analysis of Mycobacterium (M.) bovis strain 1595 isolated from a native Korean cow. Molecular typing showed that M. bovis 1595 has spoligotype SB0140 with mycobacterial interspersed repetitive units-variable number of tandem repeats typing of 4-2-5-3-2-7-5-5-4-3-4-3-4-3, representing the ...
OBJECTIVE To determine the role of Mycobacterium bovis in active pediatric tuberculosis (TB) in a United States-Mexico border region. METHOD We reviewed all new cases of pediatric (<15 years old) TB presenting to San Diego hospitals and clinics from 1980 to 1997. Patients were categorized by age, ethnicity, country of origin, culture results, and disease manifestations. Case definitions were ...
BACKGROUND Mycoplasma bovis is associated with pneumonia in calves characterized by the development of chronic caseonecrotic lesions with the agent persisting within the lesion. The purposes of this study were to characterize the morphology of lung lesions, examine the presence of M. bovis variable surface protein (Vsp) antigens and study the local immune responses in calves after infection wit...
PhoP is part of the two-component PhoPR system that regulates expression virulence genes Mycobacteria. The goal this work was to elucidate role in mechanism Mycobacterium bovis, causative agent bovine tuberculosis, displays upon stress. An analysis gene and acidic growth curves indicated M. bovis neutralized external environment by inducing secreting ammonia. We found essential for ammonia prod...
We describe here the application of a novel bovine interleukin-2 (IL-2) enzyme-linked immunosorbent assay (ELISA) for the measurement of antigen-specific IL-2 in cattle naturally infected with Mycobacterium bovis and in cattle vaccinated with Mycobacterium bovis BCG and then experimentally challenged with pathogenic M. bovis. Supernatants from whole-blood cultures stimulated with mycobacterial ...
Isolates from suggestive bovine tuberculosis lesions were tested by a multiplex polymerase chain reaction (m-PCR) targeting for RvD1Rv2031c and IS6110 sequences, specific for M. bovis and Mycobacterium tuberculosis complex respectively. The m-PCR successfully identified as M. bovis 88.24% of the isolates.
Mycobacteria of the Mycobacterium tuberculosis complex (MTBC) greatly affect humans and animals worldwide. The life cycle of mycobacteria is complex and the mechanisms resulting in pathogen infection and survival in host cells are not fully understood. Recently, comparative genomics analyses have provided new insights into the evolution and adaptation of the MTBC to survive inside the host. How...
Background: Diseases caused by microorganisms of the genus Mycobacterium continue to be a serious problem. The cell envelope constitutes up to 60% of the dry weight of lipids. The cell wall of the mycobacterium is essential for their growth and survival in the infected host. The cell wall lipids have been isolated from M. bovis BCG and M. kansasii mycobacterial strains and studied the incorpora...
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