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The DOI matches its Crossref record; 21 of the 21 references it cites were found in a registry or an index.

Evaluation of the impact of polyclonal infection and heteroresistance on treatment of tuberculosis patients

Open access
Kargarpour Kamakoli, Mansour, Sadegh, Hamid Reza, Farmanfarmaei, Ghazaleh, Masoumi, Morteza, Fateh, Abolfazl, Javadi, Gholamreza, Rahimi Jamnani, Fatemeh, Vaziri, Farzam, Siadat, Seyed Davar·2017·Scientific Reports

Abstract

Mixed strain infections of Mycobacterium tuberculosis make diagnosis, treatment, and control of tuberculosis (TB) more difficult. This study was aimed to evaluate the relationship between mixed infections, antibiotic resistance patterns and treatment of TB patients. In this study, among 2850 suspected TB clinical samples, a total of ninety-six clinical samples from 66 TB confirmed patients were subjected to the 24-locus variable-number tandem repeat method to evaluate the prevalence of mixed infections. For all studied strains, 288 colonies (three individual clones for each sample) were isolated from different colonies and separately analyzed by the Drug Susceptibility Test (DST). For all patients, follow up was done after 6 months of treatment. Based on direct 24 loci MIRU-VNTR, in the 66 TB patients, 53% (35/66) showed mixed infection. In the mixed samples, 45.71% (16/35) showed different antibiotic resistant patterns. Among the mixed infection patients, eight (22.9%; 8/35) showed treatment failure after six- month therapy. Six of these non-treated patients (75%; 6/8) had different antibiotic resistant patterns. We conclude that mixed infections, have a negative impact on treatment of TB patients especially when co-infecting M. tuberculosis strains display heteroresistance.

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Metadata

Authors
Kargarpour Kamakoli, M., Sadegh, H. R., Farmanfarmaei, G., Masoumi, M., Fateh, A., Javadi, G., Rahimi Jamnani, F., Vaziri, F., & Siadat, S. D.
Affiliations
  • Islamic Azad University, Tehran (IR)
  • Pasteur Institute of Iran (IR)
Corresponding author
Vaziri, Farzam
Venue
Scientific Reports
Published
2017-01-25
Volume
7
Issue
1
Pages
41410-41410
ISSN
2045-2322 (ISSN-L)
OpenAlex
W2581459208
Cited by
51
References
21
Citations by year
2026: 5 · 2025: 7 · 2024: 5 · 2023: 6 · 2022: 4 · 2021: 2 · 2020: 8 · 2019: 4 · 2018: 6 · 2017: 4
FWCI
4.63
Type
journal article
Language
en
Open access
Licence
Locations
  • Scientific Reports (publishedVersion, cc-by)
  • Europe PMC (PubMed Central) (publishedVersion, cc-by)
  • PubMed Central (publishedVersion, cc-by)
  • PubMed (publishedVersion)
Funders
Pasteur Institute of Iran
Topics
  • Health Sciences › Medicine › Infectious Diseases › Tuberculosis Research and Epidemiology
  • Health Sciences › Medicine › Epidemiology › Mycobacterium research and diagnosis
  • Health Sciences › Medicine › Infectious Diseases › Infectious Diseases and Tuberculosis
Keywords
tuberculosis, Mycobacterium tuberculosis, co-infection, polyclonal infection, heteroresistance, antibiotic resistance, treatment failure, MIRU-VNTR, strain typing, drug susceptibility testing
MeSH terms
Follow-Up Studies, Humans, Mycobacterium tuberculosis, Tuberculosis, Multidrug-Resistant, Minisatellite Repeats

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CoChat. (2026). Citation check: Evaluation of the impact of polyclonal infection and heteroresistance on treatment of tuberculosis patients. https://app.cochat.ai/papers/10.1038/srep41410
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Kargarpour Kamakoli, M., Sadegh, H. R., Farmanfarmaei, G., Masoumi, M., Fateh, A., Javadi, G., Rahimi Jamnani, F., Vaziri, F., & Siadat, S. D. (2017). Evaluation of the impact of polyclonal infection and heteroresistance on treatment of tuberculosis patients. Scientific Reports. https://doi.org/10.1038/srep41410

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