نتایج جستجو برای: is6110 rflp
تعداد نتایج: 11446 فیلتر نتایج به سال:
The "Harlingen" IS6110 restriction fragment length polymorphism (RFLP) cluster has linked over 100 tuberculosis cases in The Netherlands since 1993. Four Mycobacterium tuberculosis isolates that were epidemiologically linked to this cluster had different spoligotype patterns, as well as slightly divergent IS6110 profiles, compared to the majority of the isolates. Sequencing of the direct repeat...
Between 1991 and 1993, 444 inhabitants of the metropolitan area of Zurich were reported as confirmed or suspected cases of tuberculosis (TB). Overall, isolates of Mycobacterium tuberculosis of 361 patients (90% of the bacteriologically confirmed cases) were available to study the frequency of transmission of the strains on a molecular level. Restriction fragment length polymorphism (RFLP) analy...
BACKGROUND We aimed to characterize the genetic diversity of drug-resistant Mycobacterium tuberculosis (MTb) clinical isolates and investigate the molecular epidemiology of multidrug-resistant (MDR) tuberculosis from Minas Gerais State, Brazil. METHODS One hundred and four MTb clinical isolates were assessed by IS6110-RFLP, 24-locus mycobacterial interspersed repetitive units variable-number ...
Several genetic loci have been utilized to genotype isolates of Mycobacterium tuberculosis. A shortcoming of the most commonly used method, IS6110 fingerprinting, is that it does not adequately discriminate between isolates having few copies of IS6110. This study was undertaken to compare pTBN12 fingerprinting of polymorphic GC-rich repetitive sequence genes and spoligotyping of the direct repe...
The IS6110 belongs to the family of insertion sequences (IS) of the IS3 category. This insertion sequence was reported to be specific for Mycobacterium tuberculosis complex and hence is extensively exploited for laboratory detection of the agent of tuberculosis and for epidemiological investigations based on polymerase chain reaction. IS6110 is 1361-bp long and within this sequence different re...
BACKGROUND A large and unsuspected tuberculosis outbreak involving 18.7% of the total of the tuberculosis cases studied, was detected in a population-based molecular epidemiological study performed in Zaragoza (Spain) from 2001 to 2004. METHODS The Mycobacterium tuberculosis drug-susceptible strain, named MTZ strain, was genetically characterized by IS6110-RFLP, Spoligotyping and by MIRU-VNTR...
The usefulness of variable number tandem repeat (VNTR) typing based on limited numbers of loci has previously proven inferior compared to IS6110-RFLP typing when applied to the study of the molecular epidemiology of bovine tuberculosis in both livestock and wildlife in southern Africa. In this study, the discriminatory power of 29 published VNTR loci in the characterization of 131 Mycobacterium...
The Beijing family of Mycobacterium tuberculosis has been emerging in the world. However, there are few nationwide data of genotypic distribution in Korea. This study aimed to identify the genotypic diversity of clinical isolates of M. tuberculosis and to demonstrate the population of Beijing family in Korea. We collected 96 clinical M. tuberculosis isolates from 11 university hospitals nationw...
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