کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
10962068 | 1102330 | 2014 | 8 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Mycobacterium tuberculosis strains spreading in Hanoi, Vietnam: Beijing sublineages, genotypes, drug susceptibility patterns, and host factors
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کلمات کلیدی
موضوعات مرتبط
علوم زیستی و بیوفناوری
ایمنی شناسی و میکروب شناسی
میکروبیولوژی و بیوتکنولوژی کاربردی
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
Beijing genotype strains are divided into two major sublineages, ancient (atypical) and modern (typical) types, but their phenotypic variations remain largely unknown. Mycobacterium tuberculosis (MTB) isolates from Hanoi, Vietnam, were analyzed by single-nucleotide polymorphisms and spoligotyping. Patient information and drug susceptibility patterns were obtained. Genetic clustering was assessed by variable number of tandem repeat (VNTR) locus sets. Multivariate analysis was also performed to investigate factors possibly associated with these sublineages. Of the 465 strains tested, 175 (37.6%) belonged to the ancient Beijing sublineage and 97 (20.9%) were of the modern Beijing sublineage. Patients with the Beijing genotype were significantly younger and more undernourished than those with non-Beijing genotype. The proportion of clustered strains calculated from 15 locus-optimized mycobacterial interspersed repetitive units [optimized-(MIRU)15]-, optimized-MIRU24-, optimized-MIRU28-, Japan Anti-Tuberculosis Association (JATA)15-, and JATA18-VNTRs were 55.7%, 49.2%, 33.8%, 44.5%, and 32.0%, respectively. Ancient and modern Beijing genotype strains were more frequently clustered than non-Beijing genotype strains, even when using VNTR sets with high discriminatory power. Isoniazid and streptomycin resistance tended to be more frequently observed in ancient Beijing strains than in modern Beijing strains and others. Our findings may provide insight into area-dependent differences in Beijing family strain characteristics.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Tuberculosis - Volume 94, Issue 6, December 2014, Pages 649-656
Journal: Tuberculosis - Volume 94, Issue 6, December 2014, Pages 649-656
نویسندگان
Shinji Maeda, Nguyen T.L. Hang, Luu T. Lien, Pham H. Thuong, Nguyen V. Hung, Nguyen P. Hoang, Vu C. Cuong, Minako Hijikata, Shinsaku Sakurada, Naoto Keicho,