Abstract:
Background:China is one of the high-burden countries for multidrug-resistant tuberculosis (MDR-TB), and pyrazinamide is one of the anti-TB drugs used for the shorter MDR-TB treatment regimen. The aim of this study was to determine the correlation between pncA gene mutations and resistance to four first-line anti-TB drugs as well as treatment history in clinical isolates of Mycobacterium tuberculosis. Patients and methods:M. tuberculosis clinical isolates were collected from 318 in-patients with smear-positive TB between October 2008 and September 2016 at a major hospital in Zunyi, Guizhou Province of China, and used for drug susceptibility testing against four first-line anti-TB drugs. Genomic DNA extracted from clinical isolates was used for PCR amplification and DNA sequencing of the pncA gene. Results:Among 318 clinical isolates, 129 (40.6%), 170 (53.5%), 66 (20.8%) and 109 (34.3%) were resistant to rifampicin, isoniazid, ethambutol and streptomycin respectively. In addition, 124 clinical isolates were MDR-TB and 71.8% of them were previously treated cases. Sequencing results showed that 46.8% of MDR-TB and 2.2% of drug susceptible isolates harbored a pncA mutation, and 52 types of pncA mutations were detected from 64 isolates. The prevalence of pncA mutations in isolates resistant to first-line anti-TB drugs and previously treated TB cases was significantly higher than that in drug-susceptible isolates and new cases of TB. Conclusion:High prevalence of pncA mutations in clinical isolates of M. tuberculosis from Zunyi, Guizhou Province of China, is correlated with resistance to four first-line anti-TB drugs, MDR-TB and previously treated TB cases.
journal_name
Infect Drug Resistjournal_title
Infection and drug resistanceauthors
Cao Z,Lan Y,Chen L,Xiang M,Peng Z,Zhang J,Zhang Hdoi
10.2147/IDR.S222943subject
Has Abstractpub_date
2019-09-30 00:00:00pages
3093-3102issn
1178-6973pii
222943journal_volume
12pub_type
杂志文章abstract:Objective:Candida albicans is a yeast with multiple genotypes. It's a commensal fungus colonizing various sites. However, when the host's immune system weakens, it becomes pathogenic and is responsible for various lesions. In Burkina Faso, antifungal drugs are frequently used, particularly fluconazole, the most used sy...
journal_title:Infection and drug resistance
pub_type: 杂志文章
doi:10.2147/IDR.S225947
更新日期:2019-12-16 00:00:00
abstract:Objectives:We investigated the in vitro antimicrobial susceptibilities of clinically important Gram-negative bacteria (GNB) from 16 major teaching hospitals in Taiwan in 2017. Materials and methods:Escherichia coli (n=686) and Klebsiella pneumoniae bloodstream isolates (n=673), non-typhoid Salmonella (NTS; n=221) from...
journal_title:Infection and drug resistance
pub_type: 杂志文章
doi:10.2147/IDR.S175679
更新日期:2018-10-26 00:00:00
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journal_title:Infection and drug resistance
pub_type: 杂志文章
doi:10.2147/IDR.S169789
更新日期:2018-08-10 00:00:00
abstract:Purpose:With the recommendation of World Health Organization (WHO) and as per the Ethiopian National Implementation Guideline, GeneXpert is used for rapid diagnosis of rifampicin (RIF)-resistant multidrug-resistant tuberculosis (MDR-TB) from the suspected TB patients; however, there were limited findings in Ethiopia pa...
journal_title:Infection and drug resistance
pub_type: 杂志文章
doi:10.2147/IDR.S274589
更新日期:2020-10-20 00:00:00
abstract:Aim:Plasmodium falciparum malaria predominantly affects children residing in endemic areas. However, recently a significant number of Malawian adults, who otherwise should have attained some malaria-specific immunity, have been observed to succumb to either uncomplicated malaria (UM) or severe malaria (SM). In addition...
journal_title:Infection and drug resistance
pub_type: 杂志文章
doi:10.2147/IDR.S230112
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abstract:Background:The prevalence of Helicobacter pylori resistance to metronidazole and clarithromycin is high in Indonesia. Moreover, the increasing levofloxacin resistance rates in the absence of bismuth treatment in Indonesia has led to the use of other antibiotics as alternative regimens. Methods:We determined the minimu...
journal_title:Infection and drug resistance
pub_type: 杂志文章
doi:10.2147/IDR.S187063
更新日期:2019-01-31 00:00:00
abstract::Vancomycin has usually been associated with nephrotoxicity. Generally, this toxicity is presented as proximal tubular cells injury with or without necrosis and as acute interstitial nephritis. However, development of both lesions is uncommonly described in literature. We present a case of vancomycin-induced nephrotoxi...
journal_title:Infection and drug resistance
pub_type:
doi:10.2147/IDR.S171669
更新日期:2018-07-30 00:00:00
abstract:Introduction:To achieve target concentrations, the application of higher-than-standard doses of amikacin is proposed for the treatment of sepsis due to an increase in volume of distribution and clearance, but little data are available on aminoglycoside administration in critically ill elderly patients. Patients and me...
journal_title:Infection and drug resistance
pub_type: 杂志文章
doi:10.2147/IDR.S150839
更新日期:2018-02-13 00:00:00
abstract:Background:Raw meat is one of the commonly consumed traditional diets in Ethiopia. However, unhygienic processing and distribution practices are risky for contamination of meat leading to human infection. This study was conducted to assess the presence of multi-drug resistant E. coli with special emphasis on E. coli O1...
journal_title:Infection and drug resistance
pub_type: 杂志文章
doi:10.2147/IDR.S277890
更新日期:2020-10-27 00:00:00
abstract::Purpose: The rapid emergence of multidrug-resistant (MDR) bacteria and the lack of new therapies to eliminate them poses a major threat to global health. With the alarming rise in antimicrobial resistance (AMR), focus has now shifted to the use of the polymyxin class of antibiotics as the last line of defense for trea...
journal_title:Infection and drug resistance
pub_type: 杂志文章
doi:10.2147/IDR.S196874
更新日期:2019-05-27 00:00:00
abstract::Infections by drug-resistant bacteria are life-threatening. As iron is a vital element for the growth of bacteria, iron-chelating agents (siderophores) can be used to arrest their multiplication. Exogenous siderophores - exochelin-MS and deferoxamine-B - were evaluated for their inhibitory activity against methicillin...
journal_title:Infection and drug resistance
pub_type: 杂志文章
doi:10.2147/IDR.S148602
更新日期:2018-01-09 00:00:00
abstract:BACKGROUND:Multidrug-resistant tuberculosis (MDR-TB) did not receive major attention until recently in sub-Saharan Africa where the tuberculosis incidence and risk factors are highest. Factors leading to development of drug resistance need to be understood to develop appropriate control strategies for national programs...
journal_title:Infection and drug resistance
pub_type: 杂志文章
doi:10.2147/IDR.S126274
更新日期:2017-03-13 00:00:00
abstract:Purpose:The flavohemoprotein (gFlHb) in Giardia plays an important role in managing nitrosative and oxidative stress, and potentially also in virulence and nitroimidazole drug tolerance. The aim of this study was to analyze the genetic diversity of gFlHb in Giardia assemblages A and B clinical isolates. Methods:gFlHb ...
journal_title:Infection and drug resistance
pub_type: 杂志文章
doi:10.2147/IDR.S274543
更新日期:2020-12-18 00:00:00
abstract::The rapid detection of carbapenemase allows implementation of infection control measures and adaptation of antibiotic therapy. We evaluated the performances of the Xpert Carba-R V2® assay for the direct detection and identification of carbapenemase on positive blood cultures. We focused our evaluation on its detection...
journal_title:Infection and drug resistance
pub_type: 杂志文章
doi:10.2147/IDR.S204436
更新日期:2019-10-23 00:00:00
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journal_title:Infection and drug resistance
pub_type: 杂志文章
doi:10.2147/IDR.S210554
更新日期:2019-06-21 00:00:00
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journal_title:Infection and drug resistance
pub_type: 杂志文章
doi:10.2147/IDR.S152785
更新日期:2018-01-23 00:00:00
abstract::Inorganic polyphosphate (polyP) and its metabolic enzymes are important in several cellular processes related with virulence and antibiotic susceptibility. Accordingly, bacterial polyP synthesis has been proposed as a good target for designing novel antivirulence molecules as alternative to conventional antibiotics. I...
journal_title:Infection and drug resistance
pub_type: 杂志文章
doi:10.2147/IDR.S181906
更新日期:2019-07-22 00:00:00
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journal_title:Infection and drug resistance
pub_type: 杂志文章
doi:10.2147/IDR.S236026
更新日期:2020-03-09 00:00:00
abstract::[This corrects the article DOI: 10.2147/IDR.S258379.]. ...
journal_title:Infection and drug resistance
pub_type: 杂志文章,已发布勘误
doi:10.2147/IDR.S279086
更新日期:2020-09-04 00:00:00
abstract:Purpose:The activity of the cationic antimicrobial peptide WLBU2 was evaluated against planktonic cells and biofilms of multi-drug resistant (MDR) Acinetobacter baumannii and Klebsiella pneumoniae, alone and in combination with classical antimicrobial agents. Methods:Control American Type Culture Collection (ATCC) str...
journal_title:Infection and drug resistance
pub_type: 杂志文章
doi:10.2147/IDR.S215084
更新日期:2019-07-09 00:00:00
abstract:Purpose:Pseudomonas aeruginosa possesses a large number of resistance mechanisms to different antimicrobials with carbapenems being the most powerful in treating resistant P. aeruginosa. Hence, it is imperative to explore different mechanisms of carbapenems-resistance in P. aeruginosa to achieve successful treatment th...
journal_title:Infection and drug resistance
pub_type: 杂志文章
doi:10.2147/IDR.S233808
更新日期:2020-01-30 00:00:00
abstract:Background:Bloodstream infection (BSI) caused by carbapenem-resistant Enterobacteriaceae are potentially life-threatening related to poorer outcomes. Colistin is considered one of the last-resort treatments against human infections caused by multidrug-resistant (MDR) Gram-negative bacteria. Therefore, emergence of stra...
journal_title:Infection and drug resistance
pub_type: 杂志文章
doi:10.2147/IDR.S248342
更新日期:2020-05-12 00:00:00
abstract::While MIC distributions and percent susceptibility for cefepime and ceftazidime are generally similar among Pseudomonas aeruginosa, we noted an increasing discordance in susceptibility favoring ceftazidime at our hospital. Quantitative reverse transcriptase-polymerase chain reaction was utilized to explore overexpress...
journal_title:Infection and drug resistance
pub_type: 杂志文章
doi:10.2147/idr.s4418
更新日期:2008-01-01 00:00:00
abstract:Background:Recurrent tuberculosis (TB) following TB treatment completion in HIV-infected individuals remains a major public health burden. We assessed the role of various risk factors in mediating the development of recurrent TB and subsequent resistance to antiretroviral therapy and anti-TB drugs. Patients and method...
journal_title:Infection and drug resistance
pub_type: 杂志文章
doi:10.2147/IDR.S150644
更新日期:2018-09-05 00:00:00
abstract::The increase in hospitalization due to acute bacterial skin and skin structure infections (ABSSSI) caused by resistant pathogens supports the need for new treatment options. Antimicrobial options for ABSSSI that provide broad-spectrum coverage, including gram-negative pathogens and multidrug-resistant gram-positive ba...
journal_title:Infection and drug resistance
pub_type: 杂志文章,评审
doi:10.2147/IDR.S142140
更新日期:2018-04-04 00:00:00
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journal_title:Infection and drug resistance
pub_type: 杂志文章
doi:10.2147/IDR.S218921
更新日期:2019-08-08 00:00:00
abstract:Background:The aim of this study was to evaluate the clinical performance of the BD Kiestra InoqulA automated specimen processing system with commonly encountered clinical microbiology specimens. Materials and Methods:Four types of clinical specimens (sputum, urine, normally sterile body fluids, and feces) were inocul...
journal_title:Infection and drug resistance
pub_type: 杂志文章
doi:10.2147/IDR.S245173
更新日期:2020-04-01 00:00:00
abstract::A systematic review was conducted to determine the distribution and prevalence of antibiotic-resistant bacteria (ARB), antimicrobial-resistant genes (ARGs), and antimicrobial-resistant gene determinants (ARGDs) in clinical, environmental, and farm settings and to identify key knowledge gaps in a bid to contain their s...
journal_title:Infection and drug resistance
pub_type: 杂志文章,评审
doi:10.2147/IDR.S170715
更新日期:2018-10-17 00:00:00
abstract::Ceftaroline is an advanced-generation cephalosporin antibiotic recently approved by the US Food and Drug Administration for the treatment of complicated skin and skin-structure infections (cSSSIs). This intravenous broad-spectrum antibiotic exerts potent bactericidal activity by inhibiting bacterial cell wall synthesi...
journal_title:Infection and drug resistance
pub_type: 杂志文章
doi:10.2147/IDR.S17432
更新日期:2012-01-01 00:00:00
abstract::We present here the first report of an OXA-181-producing Klebsiella pneumoniae isolated from the fecal specimen of a patient in China. The OXA-181-encoding gene blaOXA-181 was located on a 51 kb IncX3-type plasmid. Conjugation assay and whole-genome sequencing analysis revealed that this transferrable plasmid in the K...
journal_title:Infection and drug resistance
pub_type: 杂志文章
doi:10.2147/IDR.S237793
更新日期:2020-04-06 00:00:00