Dominance of the Beijing genotype among XDR Mycobacterium tuberculosis strains in Russia
Introduction: The emergence and spread of multidrug-resistant and, more recently, extensively-drug resistant tuberculosis (MDR-TB and XDR-TB) is a major concern of public health that hampers efficient TB control. The Mycobacteriology Laboratory in the St. Petersburg Research Institute of Phthisiopul...
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ftdoajarticles:oai:doaj.org/article:da58241ed05b430b9696c157d211fcbc 2023-05-15T17:46:06+02:00 Dominance of the Beijing genotype among XDR Mycobacterium tuberculosis strains in Russia A Vyazovaya I Mokrousov V Zhuravlev N Solovieva T Otten B Vishnevsky O Narvskaya 2015-01-01T00:00:00Z https://doaj.org/article/da58241ed05b430b9696c157d211fcbc EN eng Wolters Kluwer Medknow Publications http://www.ijmyco.org/article.asp?issn=2212-5531;year=2015;volume=4;issue=5;spage=84;epage=85;aulast=Vyazovaya;type=0 https://doaj.org/toc/2212-5531 https://doaj.org/toc/2212-554X 2212-5531 2212-554X https://doaj.org/article/da58241ed05b430b9696c157d211fcbc International Journal of Mycobacteriology, Vol 4, Iss 5, Pp 84-85 (2015) Microbiology QR1-502 article 2015 ftdoajarticles 2022-12-30T21:15:31Z Introduction: The emergence and spread of multidrug-resistant and, more recently, extensively-drug resistant tuberculosis (MDR-TB and XDR-TB) is a major concern of public health that hampers efficient TB control. The Mycobacteriology Laboratory in the St. Petersburg Research Institute of Phthisiopulmonology serves as a reference center for northwest Russia (11 provinces; 1,700,000sq.km; population of 13.5 million); additionally, the laboratory receives strains from other regions across Russia. This study aimed to perform a molecular characterization of XDR Mycobacterium tuberculosis isolates recovered from TB patients in northwestern Russia during the time period of 2011–2013. Materials and Methods: M. tuberculosis isolates from mainly pulmonary TB patients (extrapulmonary TB, n = 7) were identified and characterized using traditional biochemical methods, including susceptibility testing for 11 anti-TB drugs (streptomycin, isoniazid, rifampin, ofloxacin, kanamycin, amikacin, capreomycin, ethambutol, ethionamide, pyrazinamide, and PAS acid). Drug susceptibility testing (DST) was done using a method of absolute concentrations according to the guidelines of the Russian Ministry of Health (order No. 109 of 21 March 2003) and/or BACTEC MGIT 960 system according to the manufacturer's recommendations. Extensive drug resistance was defined as recommended by WHO (World Health Organization) as resistance to isoniazid and rifampin (MDR) plus resistance to one of the fluoroquinolones and one of three injectable drugs (kanamycin, amikacin, capreomycin). The isolates were further subjected to spoligotyping followed by comparison with SITVIT_WEB and MIRU-VNTRplus databases. LAM family was defined by Rv0129c SNP analysis. Results: A total of 115 XDR M. tuberculosis isolates were included in this study. They presented 41 different patterns of drug resistance. XDR was complemented with resistance to streptomycin (n = 114), and/or ethambutol (n = 93), ethionamide (n = 80), pyrazinamide (n = 43), or PAS acid (n = 40). Of the three ... Article in Journal/Newspaper Northwest Russia Directory of Open Access Journals: DOAJ Articles |
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Microbiology QR1-502 A Vyazovaya I Mokrousov V Zhuravlev N Solovieva T Otten B Vishnevsky O Narvskaya Dominance of the Beijing genotype among XDR Mycobacterium tuberculosis strains in Russia |
topic_facet |
Microbiology QR1-502 |
description |
Introduction: The emergence and spread of multidrug-resistant and, more recently, extensively-drug resistant tuberculosis (MDR-TB and XDR-TB) is a major concern of public health that hampers efficient TB control. The Mycobacteriology Laboratory in the St. Petersburg Research Institute of Phthisiopulmonology serves as a reference center for northwest Russia (11 provinces; 1,700,000sq.km; population of 13.5 million); additionally, the laboratory receives strains from other regions across Russia. This study aimed to perform a molecular characterization of XDR Mycobacterium tuberculosis isolates recovered from TB patients in northwestern Russia during the time period of 2011–2013. Materials and Methods: M. tuberculosis isolates from mainly pulmonary TB patients (extrapulmonary TB, n = 7) were identified and characterized using traditional biochemical methods, including susceptibility testing for 11 anti-TB drugs (streptomycin, isoniazid, rifampin, ofloxacin, kanamycin, amikacin, capreomycin, ethambutol, ethionamide, pyrazinamide, and PAS acid). Drug susceptibility testing (DST) was done using a method of absolute concentrations according to the guidelines of the Russian Ministry of Health (order No. 109 of 21 March 2003) and/or BACTEC MGIT 960 system according to the manufacturer's recommendations. Extensive drug resistance was defined as recommended by WHO (World Health Organization) as resistance to isoniazid and rifampin (MDR) plus resistance to one of the fluoroquinolones and one of three injectable drugs (kanamycin, amikacin, capreomycin). The isolates were further subjected to spoligotyping followed by comparison with SITVIT_WEB and MIRU-VNTRplus databases. LAM family was defined by Rv0129c SNP analysis. Results: A total of 115 XDR M. tuberculosis isolates were included in this study. They presented 41 different patterns of drug resistance. XDR was complemented with resistance to streptomycin (n = 114), and/or ethambutol (n = 93), ethionamide (n = 80), pyrazinamide (n = 43), or PAS acid (n = 40). Of the three ... |
format |
Article in Journal/Newspaper |
author |
A Vyazovaya I Mokrousov V Zhuravlev N Solovieva T Otten B Vishnevsky O Narvskaya |
author_facet |
A Vyazovaya I Mokrousov V Zhuravlev N Solovieva T Otten B Vishnevsky O Narvskaya |
author_sort |
A Vyazovaya |
title |
Dominance of the Beijing genotype among XDR Mycobacterium tuberculosis strains in Russia |
title_short |
Dominance of the Beijing genotype among XDR Mycobacterium tuberculosis strains in Russia |
title_full |
Dominance of the Beijing genotype among XDR Mycobacterium tuberculosis strains in Russia |
title_fullStr |
Dominance of the Beijing genotype among XDR Mycobacterium tuberculosis strains in Russia |
title_full_unstemmed |
Dominance of the Beijing genotype among XDR Mycobacterium tuberculosis strains in Russia |
title_sort |
dominance of the beijing genotype among xdr mycobacterium tuberculosis strains in russia |
publisher |
Wolters Kluwer Medknow Publications |
publishDate |
2015 |
url |
https://doaj.org/article/da58241ed05b430b9696c157d211fcbc |
genre |
Northwest Russia |
genre_facet |
Northwest Russia |
op_source |
International Journal of Mycobacteriology, Vol 4, Iss 5, Pp 84-85 (2015) |
op_relation |
http://www.ijmyco.org/article.asp?issn=2212-5531;year=2015;volume=4;issue=5;spage=84;epage=85;aulast=Vyazovaya;type=0 https://doaj.org/toc/2212-5531 https://doaj.org/toc/2212-554X 2212-5531 2212-554X https://doaj.org/article/da58241ed05b430b9696c157d211fcbc |
_version_ |
1766149465605931008 |