Tuberculosis pandemic and dissemination of drug resistant strains: a challenge for Bulgaria
Identifieur interne : 002F87 ( Main/Curation ); précédent : 002F86; suivant : 002F88Tuberculosis pandemic and dissemination of drug resistant strains: a challenge for Bulgaria
Auteurs : Violeta Valcheva [Bulgarie] ; Igor Mokrousov [Russie] ; Olga Narvskaya [Russie] ; Nalin Rastogi [France] ; Nadya Markova [Bulgarie]Source :
Descripteurs français
- Wicri :
- topic : épidémiologie.
- geographic : Bulgarie.
English descriptors
- mix :
Abstract
BACKGROUND: Since early Neolithic, Europe as a whole and Balkans in particular were at the crossroads of human migrations thereby transmitting human pathogens across the continent. Bulgaria located near the Europe-Asia border was in the front of these migrations that left their imprint on the population structure of human pathogens circulating therein. A re-emergence and wide dissemination of multidrug-resistant tuberculosis (MDR-TB) threatens national control problems. The early detection of resistance to first line anti-TB drugs is essential for the efficient treatment and constitutes one of the priorities of TB control of MDR strains. The rate of the MDR-TB among newly diagnosed TB patients in Bulgaria was estimated to be 10.7% that is much higher than in the neighboring countries. Here we evaluated fast molecular methods to detect drug resistant TB and studied the distribution of resistant properties in different clonal lineages of M. tuberculosis in Bulgaria versus its neighbors. METHODS: Drug-resistant and susceptible M. tuberculosis strains from newly-diagnosed patients were studied by different typing methods (spoligo-, IS6110-RFLP and 24-loci MIRU-VNTR typing). Mutations in the major gene targets related to drug resistance (rpoB RRDR, katG315, inhA -15, embB306) were detected by PCR and microarrays. RESULTS: The population of M. tuberculosis in Bulgaria was found sufficiently heterogenous (24-VNTR based HGI=0.89). Mutation in rpoB531 was detected in the remarkably high rate among RIF-resistant strains (65%). Mutations in katG315 and inhA -15 were detected only in 50% of INH-resistant strains. The embB306 mutation was found in 63% of EMB-resistant strains. Comparison with genotyping results did not identify any strain cluster linked to drug resistance. CONCLUSION: M. tuberculosis population in Bulgaria features several global, Balkan- and Bulgaria- specific lineages. rpoB RRDR and embB306 mutations may serve for rapid genotypic detection of the majority of RIF and EMB-resistant M. tuberculosis strains in Bulgaria. The results for INH resistance are complex and more genes should be studied. The very high rate of rpoB S531L mutation may correlate with some specific features of the national TB control program (quality of the drug used) or is hypothetically linked to another molecular mechanism of RIF resistance. A local circulation of the particular clones appears to be an important factor to take into consideration in the molecular epidemiological studies of tuberculosis in Bulgaria. Emergence and spread of drug-resistant and MDR-TB in Bulgaria are not associated with any particular spoligotype or MIRU-VNTR genotype.
Url:
DOI: 10.1186/1753-6561-5-S1-P83
Links toward previous steps (curation, corpus...)
- to stream Hal, to step Corpus: Pour aller vers cette notice dans l'étape Curation :000631
- to stream Hal, to step Curation: Pour aller vers cette notice dans l'étape Curation :000631
- to stream Hal, to step Checkpoint: Pour aller vers cette notice dans l'étape Curation :000660
- to stream Main, to step Merge: Pour aller vers cette notice dans l'étape Curation :003102
Links to Exploration step
Hal:pasteur-00694611Le document en format XML
<record><TEI><teiHeader><fileDesc><titleStmt><title xml:lang="en">Tuberculosis pandemic and dissemination of drug resistant strains: a challenge for Bulgaria</title>
<author><name sortKey="Valcheva, Violeta" sort="Valcheva, Violeta" uniqKey="Valcheva V" first="Violeta" last="Valcheva">Violeta Valcheva</name>
<affiliation wicri:level="1"><hal:affiliation type="institution" xml:id="struct-55940" status="VALID"> <orgName>Institut Stephan Angeloff</orgName>
<desc> <address> <addrLine>26, rue Acad. G. Bonchev 1113 Sofia, Bulgarie</addrLine>
<country key="BG"></country>
</address>
<ref type="url">http://www.microbio.bas.bg/</ref>
</desc>
<listRelation> <relation active="#struct-301247" type="direct"></relation>
</listRelation>
<tutelles><tutelle active="#struct-301247" type="direct"><org type="regroupinstitution" xml:id="struct-301247" status="VALID"> <orgName>Réseau International des Instituts Pasteur</orgName>
<orgName type="acronym">RIIP</orgName>
<desc> <address> <addrLine>25, rue du Dr Roux 75724 Paris Cedex 15</addrLine>
<country key="FR"></country>
</address>
<ref type="url">https://research.pasteur.fr/ip-network</ref>
</desc>
</org>
</tutelle>
</tutelles>
</hal:affiliation>
<country>Bulgarie</country>
</affiliation>
</author>
<author><name sortKey="Mokrousov, Igor" sort="Mokrousov, Igor" uniqKey="Mokrousov I" first="Igor" last="Mokrousov">Igor Mokrousov</name>
<affiliation wicri:level="1"><hal:affiliation type="institution" xml:id="struct-55939" status="VALID"> <orgName>Institut Pasteur de Saint-Pétersbourg</orgName>
<desc> <address> <addrLine>Ulitsa Mira 14 197101 Saint-Pétersbourg</addrLine>
<country key="RU"></country>
</address>
<ref type="url">http://www.pasteur-nii.spb.ru/</ref>
</desc>
<listRelation> <relation active="#struct-301247" type="direct"></relation>
</listRelation>
<tutelles><tutelle active="#struct-301247" type="direct"><org type="regroupinstitution" xml:id="struct-301247" status="VALID"> <orgName>Réseau International des Instituts Pasteur</orgName>
<orgName type="acronym">RIIP</orgName>
<desc> <address> <addrLine>25, rue du Dr Roux 75724 Paris Cedex 15</addrLine>
<country key="FR"></country>
</address>
<ref type="url">https://research.pasteur.fr/ip-network</ref>
</desc>
</org>
</tutelle>
</tutelles>
</hal:affiliation>
<country>Russie</country>
</affiliation>
</author>
<author><name sortKey="Narvskaya, Olga" sort="Narvskaya, Olga" uniqKey="Narvskaya O" first="Olga" last="Narvskaya">Olga Narvskaya</name>
<affiliation wicri:level="1"><hal:affiliation type="institution" xml:id="struct-55939" status="VALID"> <orgName>Institut Pasteur de Saint-Pétersbourg</orgName>
<desc> <address> <addrLine>Ulitsa Mira 14 197101 Saint-Pétersbourg</addrLine>
<country key="RU"></country>
</address>
<ref type="url">http://www.pasteur-nii.spb.ru/</ref>
</desc>
<listRelation> <relation active="#struct-301247" type="direct"></relation>
</listRelation>
<tutelles><tutelle active="#struct-301247" type="direct"><org type="regroupinstitution" xml:id="struct-301247" status="VALID"> <orgName>Réseau International des Instituts Pasteur</orgName>
<orgName type="acronym">RIIP</orgName>
<desc> <address> <addrLine>25, rue du Dr Roux 75724 Paris Cedex 15</addrLine>
<country key="FR"></country>
</address>
<ref type="url">https://research.pasteur.fr/ip-network</ref>
</desc>
</org>
</tutelle>
</tutelles>
</hal:affiliation>
<country>Russie</country>
</affiliation>
</author>
<author><name sortKey="Rastogi, Nalin" sort="Rastogi, Nalin" uniqKey="Rastogi N" first="Nalin" last="Rastogi">Nalin Rastogi</name>
<affiliation wicri:level="1"><hal:affiliation type="institution" xml:id="struct-55921" status="VALID"> <orgName>Institut Pasteur de la Guadeloupe</orgName>
<desc> <address> <addrLine>B.P. 484 97165 Pointe à Pitre Cedex</addrLine>
<country key="FR"></country>
</address>
<ref type="url">http://www.pasteur-guadeloupe.fr</ref>
</desc>
<listRelation> <relation active="#struct-301247" type="direct"></relation>
</listRelation>
<tutelles><tutelle active="#struct-301247" type="direct"><org type="regroupinstitution" xml:id="struct-301247" status="VALID"> <orgName>Réseau International des Instituts Pasteur</orgName>
<orgName type="acronym">RIIP</orgName>
<desc> <address> <addrLine>25, rue du Dr Roux 75724 Paris Cedex 15</addrLine>
<country key="FR"></country>
</address>
<ref type="url">https://research.pasteur.fr/ip-network</ref>
</desc>
</org>
</tutelle>
</tutelles>
</hal:affiliation>
<country>France</country>
</affiliation>
</author>
<author><name sortKey="Markova, Nadya" sort="Markova, Nadya" uniqKey="Markova N" first="Nadya" last="Markova">Nadya Markova</name>
<affiliation wicri:level="1"><hal:affiliation type="institution" xml:id="struct-55940" status="VALID"> <orgName>Institut Stephan Angeloff</orgName>
<desc> <address> <addrLine>26, rue Acad. G. Bonchev 1113 Sofia, Bulgarie</addrLine>
<country key="BG"></country>
</address>
<ref type="url">http://www.microbio.bas.bg/</ref>
</desc>
<listRelation> <relation active="#struct-301247" type="direct"></relation>
</listRelation>
<tutelles><tutelle active="#struct-301247" type="direct"><org type="regroupinstitution" xml:id="struct-301247" status="VALID"> <orgName>Réseau International des Instituts Pasteur</orgName>
<orgName type="acronym">RIIP</orgName>
<desc> <address> <addrLine>25, rue du Dr Roux 75724 Paris Cedex 15</addrLine>
<country key="FR"></country>
</address>
<ref type="url">https://research.pasteur.fr/ip-network</ref>
</desc>
</org>
</tutelle>
</tutelles>
</hal:affiliation>
<country>Bulgarie</country>
</affiliation>
</author>
</titleStmt>
<publicationStmt><idno type="wicri:source">HAL</idno>
<idno type="RBID">Hal:pasteur-00694611</idno>
<idno type="halId">pasteur-00694611</idno>
<idno type="halUri">https://hal-riip.archives-ouvertes.fr/pasteur-00694611</idno>
<idno type="url">https://hal-riip.archives-ouvertes.fr/pasteur-00694611</idno>
<idno type="doi">10.1186/1753-6561-5-S1-P83</idno>
<date when="2010-11-23">2010-11-23</date>
<idno type="wicri:Area/Hal/Corpus">000631</idno>
<idno type="wicri:Area/Hal/Curation">000631</idno>
<idno type="wicri:Area/Hal/Checkpoint">000660</idno>
<idno type="wicri:explorRef" wicri:stream="Hal" wicri:step="Checkpoint">000660</idno>
<idno type="wicri:Area/Main/Merge">003102</idno>
<idno type="wicri:Area/Main/Curation">002F87</idno>
</publicationStmt>
<sourceDesc><biblStruct><analytic><title xml:lang="en">Tuberculosis pandemic and dissemination of drug resistant strains: a challenge for Bulgaria</title>
<author><name sortKey="Valcheva, Violeta" sort="Valcheva, Violeta" uniqKey="Valcheva V" first="Violeta" last="Valcheva">Violeta Valcheva</name>
<affiliation wicri:level="1"><hal:affiliation type="institution" xml:id="struct-55940" status="VALID"> <orgName>Institut Stephan Angeloff</orgName>
<desc> <address> <addrLine>26, rue Acad. G. Bonchev 1113 Sofia, Bulgarie</addrLine>
<country key="BG"></country>
</address>
<ref type="url">http://www.microbio.bas.bg/</ref>
</desc>
<listRelation> <relation active="#struct-301247" type="direct"></relation>
</listRelation>
<tutelles><tutelle active="#struct-301247" type="direct"><org type="regroupinstitution" xml:id="struct-301247" status="VALID"> <orgName>Réseau International des Instituts Pasteur</orgName>
<orgName type="acronym">RIIP</orgName>
<desc> <address> <addrLine>25, rue du Dr Roux 75724 Paris Cedex 15</addrLine>
<country key="FR"></country>
</address>
<ref type="url">https://research.pasteur.fr/ip-network</ref>
</desc>
</org>
</tutelle>
</tutelles>
</hal:affiliation>
<country>Bulgarie</country>
</affiliation>
</author>
<author><name sortKey="Mokrousov, Igor" sort="Mokrousov, Igor" uniqKey="Mokrousov I" first="Igor" last="Mokrousov">Igor Mokrousov</name>
<affiliation wicri:level="1"><hal:affiliation type="institution" xml:id="struct-55939" status="VALID"> <orgName>Institut Pasteur de Saint-Pétersbourg</orgName>
<desc> <address> <addrLine>Ulitsa Mira 14 197101 Saint-Pétersbourg</addrLine>
<country key="RU"></country>
</address>
<ref type="url">http://www.pasteur-nii.spb.ru/</ref>
</desc>
<listRelation> <relation active="#struct-301247" type="direct"></relation>
</listRelation>
<tutelles><tutelle active="#struct-301247" type="direct"><org type="regroupinstitution" xml:id="struct-301247" status="VALID"> <orgName>Réseau International des Instituts Pasteur</orgName>
<orgName type="acronym">RIIP</orgName>
<desc> <address> <addrLine>25, rue du Dr Roux 75724 Paris Cedex 15</addrLine>
<country key="FR"></country>
</address>
<ref type="url">https://research.pasteur.fr/ip-network</ref>
</desc>
</org>
</tutelle>
</tutelles>
</hal:affiliation>
<country>Russie</country>
</affiliation>
</author>
<author><name sortKey="Narvskaya, Olga" sort="Narvskaya, Olga" uniqKey="Narvskaya O" first="Olga" last="Narvskaya">Olga Narvskaya</name>
<affiliation wicri:level="1"><hal:affiliation type="institution" xml:id="struct-55939" status="VALID"> <orgName>Institut Pasteur de Saint-Pétersbourg</orgName>
<desc> <address> <addrLine>Ulitsa Mira 14 197101 Saint-Pétersbourg</addrLine>
<country key="RU"></country>
</address>
<ref type="url">http://www.pasteur-nii.spb.ru/</ref>
</desc>
<listRelation> <relation active="#struct-301247" type="direct"></relation>
</listRelation>
<tutelles><tutelle active="#struct-301247" type="direct"><org type="regroupinstitution" xml:id="struct-301247" status="VALID"> <orgName>Réseau International des Instituts Pasteur</orgName>
<orgName type="acronym">RIIP</orgName>
<desc> <address> <addrLine>25, rue du Dr Roux 75724 Paris Cedex 15</addrLine>
<country key="FR"></country>
</address>
<ref type="url">https://research.pasteur.fr/ip-network</ref>
</desc>
</org>
</tutelle>
</tutelles>
</hal:affiliation>
<country>Russie</country>
</affiliation>
</author>
<author><name sortKey="Rastogi, Nalin" sort="Rastogi, Nalin" uniqKey="Rastogi N" first="Nalin" last="Rastogi">Nalin Rastogi</name>
<affiliation wicri:level="1"><hal:affiliation type="institution" xml:id="struct-55921" status="VALID"> <orgName>Institut Pasteur de la Guadeloupe</orgName>
<desc> <address> <addrLine>B.P. 484 97165 Pointe à Pitre Cedex</addrLine>
<country key="FR"></country>
</address>
<ref type="url">http://www.pasteur-guadeloupe.fr</ref>
</desc>
<listRelation> <relation active="#struct-301247" type="direct"></relation>
</listRelation>
<tutelles><tutelle active="#struct-301247" type="direct"><org type="regroupinstitution" xml:id="struct-301247" status="VALID"> <orgName>Réseau International des Instituts Pasteur</orgName>
<orgName type="acronym">RIIP</orgName>
<desc> <address> <addrLine>25, rue du Dr Roux 75724 Paris Cedex 15</addrLine>
<country key="FR"></country>
</address>
<ref type="url">https://research.pasteur.fr/ip-network</ref>
</desc>
</org>
</tutelle>
</tutelles>
</hal:affiliation>
<country>France</country>
</affiliation>
</author>
<author><name sortKey="Markova, Nadya" sort="Markova, Nadya" uniqKey="Markova N" first="Nadya" last="Markova">Nadya Markova</name>
<affiliation wicri:level="1"><hal:affiliation type="institution" xml:id="struct-55940" status="VALID"> <orgName>Institut Stephan Angeloff</orgName>
<desc> <address> <addrLine>26, rue Acad. G. Bonchev 1113 Sofia, Bulgarie</addrLine>
<country key="BG"></country>
</address>
<ref type="url">http://www.microbio.bas.bg/</ref>
</desc>
<listRelation> <relation active="#struct-301247" type="direct"></relation>
</listRelation>
<tutelles><tutelle active="#struct-301247" type="direct"><org type="regroupinstitution" xml:id="struct-301247" status="VALID"> <orgName>Réseau International des Instituts Pasteur</orgName>
<orgName type="acronym">RIIP</orgName>
<desc> <address> <addrLine>25, rue du Dr Roux 75724 Paris Cedex 15</addrLine>
<country key="FR"></country>
</address>
<ref type="url">https://research.pasteur.fr/ip-network</ref>
</desc>
</org>
</tutelle>
</tutelles>
</hal:affiliation>
<country>Bulgarie</country>
</affiliation>
</author>
</analytic>
<idno type="DOI">10.1186/1753-6561-5-S1-P83</idno>
</biblStruct>
</sourceDesc>
</fileDesc>
<profileDesc><textClass><keywords scheme="mix" xml:lang="en"><term>Bulgaria</term>
<term>Drug-resistance</term>
<term>Epidemiology</term>
<term>IS6110-RFLP</term>
<term>MIRU-VNTRs</term>
<term>Molecular typing</term>
<term>Spoligotyping</term>
<term>Tuberculosis</term>
</keywords>
<keywords scheme="Wicri" type="topic" xml:lang="fr"><term>épidémiologie</term>
</keywords>
<keywords scheme="Wicri" type="geographic" xml:lang="fr"><term>Bulgarie</term>
</keywords>
</textClass>
</profileDesc>
</teiHeader>
<front><div type="abstract" xml:lang="en"> <p>BACKGROUND: Since early Neolithic, Europe as a whole and Balkans in particular were at the crossroads of human migrations thereby transmitting human pathogens across the continent. Bulgaria located near the Europe-Asia border was in the front of these migrations that left their imprint on the population structure of human pathogens circulating therein. A re-emergence and wide dissemination of multidrug-resistant tuberculosis (MDR-TB) threatens national control problems. The early detection of resistance to first line anti-TB drugs is essential for the efficient treatment and constitutes one of the priorities of TB control of MDR strains. The rate of the MDR-TB among newly diagnosed TB patients in Bulgaria was estimated to be 10.7% that is much higher than in the neighboring countries. Here we evaluated fast molecular methods to detect drug resistant TB and studied the distribution of resistant properties in different clonal lineages of M. tuberculosis in Bulgaria versus its neighbors. METHODS: Drug-resistant and susceptible M. tuberculosis strains from newly-diagnosed patients were studied by different typing methods (spoligo-, IS6110-RFLP and 24-loci MIRU-VNTR typing). Mutations in the major gene targets related to drug resistance (rpoB RRDR, katG315, inhA -15, embB306) were detected by PCR and microarrays. RESULTS: The population of M. tuberculosis in Bulgaria was found sufficiently heterogenous (24-VNTR based HGI=0.89). Mutation in rpoB531 was detected in the remarkably high rate among RIF-resistant strains (65%). Mutations in katG315 and inhA -15 were detected only in 50% of INH-resistant strains. The embB306 mutation was found in 63% of EMB-resistant strains. Comparison with genotyping results did not identify any strain cluster linked to drug resistance. CONCLUSION: M. tuberculosis population in Bulgaria features several global, Balkan- and Bulgaria- specific lineages. rpoB RRDR and embB306 mutations may serve for rapid genotypic detection of the majority of RIF and EMB-resistant M. tuberculosis strains in Bulgaria. The results for INH resistance are complex and more genes should be studied. The very high rate of rpoB S531L mutation may correlate with some specific features of the national TB control program (quality of the drug used) or is hypothetically linked to another molecular mechanism of RIF resistance. A local circulation of the particular clones appears to be an important factor to take into consideration in the molecular epidemiological studies of tuberculosis in Bulgaria. Emergence and spread of drug-resistant and MDR-TB in Bulgaria are not associated with any particular spoligotype or MIRU-VNTR genotype.</p>
</div>
</front>
</TEI>
</record>
Pour manipuler ce document sous Unix (Dilib)
EXPLOR_STEP=$WICRI_ROOT/Sante/explor/PandemieGrippaleV1/Data/Main/Curation
HfdSelect -h $EXPLOR_STEP/biblio.hfd -nk 002F87 | SxmlIndent | more
Ou
HfdSelect -h $EXPLOR_AREA/Data/Main/Curation/biblio.hfd -nk 002F87 | SxmlIndent | more
Pour mettre un lien sur cette page dans le réseau Wicri
{{Explor lien |wiki= Sante |area= PandemieGrippaleV1 |flux= Main |étape= Curation |type= RBID |clé= Hal:pasteur-00694611 |texte= Tuberculosis pandemic and dissemination of drug resistant strains: a challenge for Bulgaria }}
![]() | This area was generated with Dilib version V0.6.34. | ![]() |