نتایج جستجو برای: non tuberculosis mycobacteria
تعداد نتایج: 1412377 فیلتر نتایج به سال:
OBJECTIVE To establish a polymerase chain reaction (PCR) assay for the rapid detection and identification of mycobacteria in urine, and to assess the value of such assay in routine laboratory diagnosis of genitourinary tuberculosis. MATERIALS AND METHODS Urine specimens from 1000 patients with clinical suspicion of urinary tuberculosis were examined. Two assays for the detection and identific...
Effective and economical mycobactericidal disinfectants are needed to kill both Mycobacterium tuberculosis and non-M. tuberculosis mycobacteria. We found that acetic acid (vinegar) efficiently kills M. tuberculosis after 30 min of exposure to a 6% acetic acid solution. The activity is not due to pH alone, and propionic acid also appears to be bactericidal. M. bolletii and M. massiliense nontube...
Background and purpose: Mycobacterium tuberculosis complex (MTBC) members are causative agents of human and animal tuberculosis. Differentiation of MTBC members is essential for appropriate treatment of individual patients and reduce drug resistance. Materials and methods: A total of 1345 samples were collected from patients clinically suspected of contracting tuberculosis that referred to hea...
We were greatly impressed by the Joint Tuberculosis Committee guidelines on the management of opportunist mycobacterial infections. We do, however, wonder why the word “opportunist” has been used to describe the mycobacteria, other than the M tuberculosis complex, that cause human disease. All mycobacteria causing disease, even the M tuberculosis complex, are opportunists. Thus, the latter are ...
We were greatly impressed by the Joint Tuberculosis Committee guidelines on the management of opportunist mycobacterial infections. We do, however, wonder why the word “opportunist” has been used to describe the mycobacteria, other than the M tuberculosis complex, that cause human disease. All mycobacteria causing disease, even the M tuberculosis complex, are opportunists. Thus, the latter are ...
Growing evidence suggests that the presence of a subpopulation of hypoxic non-replicating, phenotypically drug-tolerant mycobacteria is responsible for the prolonged duration of tuberculosis treatment. The discovery of new antitubercular agents active against this subpopulation may help in developing new strategies to shorten the time of tuberculosis therapy. Recently, the maintenance of a low ...
12 Nontuberculous mycobacteria (NTM) are in the same family as the organisms that cause tuberculosis and leprosy, but unlike those organisms, NTM are widely dispersed in our environment, vary greatly in their ability to cause disease, and are not spread from person to person. There are about 140 different species of mycobacteria. Mycobacteria not closely related to tuberculosis or leprosy are c...
We report a 69-years-old Iranian HIV negative male patient, with long-standing pulmonary tuberculosis (eleven years) co-infected with non-tuberculosis mycobacteria. Despite of initiation of first line anti-tuberculosis therapy after diagnosis the patient poorly respond because of low compliance with anti-TB treatment. After several incomplete treatments the smear was still positive and thus dru...
Tuberculosis (TB) is characterized by a tight interplay between Mycobacterium tuberculosis and host cells within granulomas. These cellular aggregates restrict bacterial spreading, but do not kill all the bacilli, which can persist for years. In-depth investigation of M. tuberculosis interactions with granuloma-specific cell populations are needed to gain insight into mycobacterial persistence,...
A procedure that uses gas-liquid chromatography and a pattern recognition computer model was developed for distinguishing cultures of Mycobacterium tuberculosis from cultures of other mycobacteria, common bacteria, and fungi. In this procedure, a sample of a culture preparation is methanolyzed and trimethylsilylated sequentially and injected into a gas chromatograph equipped with a flame ioniza...
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