Linezolid Resistance in Methicillin-Resistant Staphylococcus aureus in Korea: High Rate of False Resistance to Linezolid by the VITEK 2 System.

Abstract:

:As various linezolid resistance mechanisms have been identified in methicillin-resistant Staphylococcus aureus (MRSA), we investigated the molecular characteristics of MRSA with elevated linezolid minimum inhibitory concentrations (MICs), using the VITEK 2 system (bioMérieux, Marcy-l'Étoile, France). Twenty-seven MRSA isolates from 14 patients exhibiting linezolid MICs ≥8 μg/mL were examined by broth microdilution (BMD) test as well as by sequencing for mutations in the 23S rRNA gene or ribosomal proteins (L3, L4, and L22) and the presence of the optrA, cfr, and cfr(B) genes. Of the 27 isolates, four (14.8%) from one patient were confirmed as linezolid resistant by BMD and harbored a 23S rRNA T2500A mutation. The remaining 23 were confirmed as linezolid susceptible, indicating that the linezolid-resistant results were major errors generated by VITEK 2. The most commonly detected mutation (19/27, 70.4%), L3 Gly152Asp, was detected in only linezolid-susceptible isolates. No isolates contained optrA, cfr, or cfr(B) or any L4 or L22 protein alterations. Our results show that the 23S rRNA T2500A mutation was mainly associated with linezolid resistance, while the L3 Gly152Asp mutation was not related to linezolid resistance. A confirmatory test is recommended for VITEK 2 linezolid-resistant results owing to the high probability of false resistant results.

journal_name

Ann Lab Med

authors

Yoo IY,Kang OK,Shim HJ,Huh HJ,Lee NY

doi

10.3343/alm.2020.40.1.57

subject

Has Abstract

pub_date

2020-01-01 00:00:00

pages

57-62

issue

1

eissn

2234-3806

issn

2234-3814

pii

40.57

journal_volume

40

pub_type

杂志文章
  • Platelet Function Analyzer-200 P2Y Results Are Predictive of the Risk of Major Adverse Cardiac Events in Korean Patients Receiving Clopidogrel Therapy Following Acute Coronary Syndrome.

    abstract:BACKGROUND:Clopidogrel is one of the most commonly used anti-platelet agents in cardiovascular diseases. We analyzed the relationship between the platelet function analyzer (PFA)-200 P2Y (INNOVANCE PFA-200 System, Siemens Healthcare, Germany) results and occurrence of major adverse cardiac events (MACEs) in Korean pati...

    journal_title:Annals of laboratory medicine

    pub_type: 杂志文章

    doi:10.3343/alm.2018.38.5.413

    authors: Lim HH,Li S,An GD,Woo KS,Kim KH,Kim JM,Kim MH,Han JY

    更新日期:2018-09-01 00:00:00

  • Duffy blood group genotyping in Thai blood donors.

    abstract:BACKGROUND:Duffy (FY) blood group genotyping is important in transfusion medicine because Duffy alloantibodies are associated with delayed hemolytic transfusion reactions and hemolytic disease of the fetus and newborn. In this study, FY allele frequencies in Thai blood donors were determined by in-house PCR with sequen...

    journal_title:Annals of laboratory medicine

    pub_type: 杂志文章

    doi:10.3343/alm.2015.35.6.618

    authors: Nathalang O,Intharanut K,Siriphanthong K,Nathalang S,Kupatawintu P

    更新日期:2015-11-01 00:00:00

  • Comparison of sputum and nasopharyngeal swab specimens for molecular diagnosis of Mycoplasma pneumoniae, Chlamydophila pneumoniae, and Legionella pneumophila.

    abstract:BACKGROUND:Differentiation of atypical pathogens is important for community-acquired pneumonia (CAP). In this study, we compared sputum and nasopharyngeal swabs (NPS) for use in detection of Mycoplasma pneumoniae (MP), Chlamydophila pneumoniae (CP), and Legionella pneumophila (LP), using Seeplex PneumoBacter ACE Detect...

    journal_title:Annals of laboratory medicine

    pub_type: 杂志文章

    doi:10.3343/alm.2012.32.2.133

    authors: Cho MC,Kim H,An D,Lee M,Noh SA,Kim MN,Chong YP,Woo JH

    更新日期:2012-03-01 00:00:00

  • The role of cardiac biomarkers in the diagnosis and management of patients presenting with suspected acute coronary syndrome.

    abstract::Myocardial infarction (MI) is the leading cause of death in the developed world. Biomarkers have an essential role in diagnosis, risk stratification, guiding management and clinical decision making in the setting of patients presenting with signs and symptoms of MI. Cardiac troponin (cTn) rose to prominence during the...

    journal_title:Annals of laboratory medicine

    pub_type: 杂志文章,评审

    doi:10.3343/alm.2013.33.5.309

    authors: Christenson E,Christenson RH

    更新日期:2013-09-01 00:00:00

  • A case of IgM deficiency with B cell deficiency detected by ABO discrepancy in a patient with acute osteomyelitis.

    abstract::ABO discrepancy refers to an inconsistency between red cell and serum typings and has various causes, including hypogammaglobulinemia. IgM deficiency is a rare disorder that may accompany several conditions such as infection and autoimmune disorders. Here, we describe a case of IgM deficiency discovered during the eva...

    journal_title:Annals of laboratory medicine

    pub_type: 杂志文章

    doi:10.3343/alm.2013.33.3.208

    authors: Jung CL,Cha MK,Jun BH,Hong KS

    更新日期:2013-05-01 00:00:00

  • Interlaboratory Comparison of the Results of Lifecodes LSA Class I and Class II Single Antigen Kits for Human Leukocyte Antigen Antibody Detection.

    abstract:BACKGROUND:Although single antigen bead assays (SAB) are approved qualitative tests, the median fluorescence intensity (MFI) values obtained from SAB are frequently used in combination with quantitative significances for diagnostic purposes. To gauge the reproducibility of SAB results, we assessed the interlaboratory v...

    journal_title:Annals of laboratory medicine

    pub_type: 杂志文章

    doi:10.3343/alm.2015.35.3.321

    authors: Oh EJ,Park H,Park KU,Kang ES,Kim HS,Song EY

    更新日期:2015-05-01 00:00:00

  • The first Korean case of candidemia due to Candida dubliniensis.

    abstract::Candidemia due to uncommon Candida spp. appears to be increasing in incidence. C. dubliniensis has been increasingly recovered from individuals not infected with HIV. Identification of C. dubliniensis can be problematic in routine clinical practice due to its phenotypic resemblance to C. albicans. We report the first ...

    journal_title:Annals of laboratory medicine

    pub_type: 杂志文章

    doi:10.3343/alm.2012.32.3.225

    authors: Yu N,Kim HR,Lee MK

    更新日期:2012-05-01 00:00:00

  • Performance of an Automated Fluorescence Antinuclear Antibody Image Analyzer.

    abstract:BACKGROUND:The gold standard for antinuclear antibody (ANA) screening is the indirect immunofluorescence (IIF) assay with human epithelial cells (HEp-2). However, a number of substantial disadvantages of manual IIF assays have highlighted the need for the automation and standardization of fluorescent ANA (FANA) testing...

    journal_title:Annals of laboratory medicine

    pub_type: 杂志文章

    doi:10.3343/alm.2017.37.3.240

    authors: Yoo IY,Oh JW,Cha HS,Koh EM,Kang ES

    更新日期:2017-05-01 00:00:00

  • Clinical and microbiological characteristics of six Staphylococcus pettenkoferi isolates from blood samples.

    abstract::Coagulase-negative staphylococci (CoNS) are reported to be the leading cause of nosocomial bloodstream infections. Staphylococcus pettenkoferi is a novel member of CoNS that was first isolated from the human blood and bursitis wound in 2002. We have reported cases of 6 S. pettenkoferi strains isolated from blood speci...

    journal_title:Annals of laboratory medicine

    pub_type: 杂志文章

    doi:10.3343/alm.2015.35.2.250

    authors: Park S,Chung HS,Lee M

    更新日期:2015-03-01 00:00:00

  • In vitro activity of tedizolid against gram-positive bacteria in patients with skin and skin structure infections and hospital-acquired pneumonia: a Korean multicenter study.

    abstract::We compared the activities of tedizolid to those of linezolid and other commonly used antimicrobial agents against gram-positive cocci recovered from patients with skin and skin structure infections (SSSIs) and hospital-acquired pneumonia (HAP) in Korean hospitals. Gram-positive isolates were collected from 356 patien...

    journal_title:Annals of laboratory medicine

    pub_type: 杂志文章

    doi:10.3343/alm.2015.35.5.523

    authors: Lee Y,Hong SK,Choi S,Im W,Yong D,Lee K

    更新日期:2015-09-01 00:00:00

  • Evaluation of Xpert C. difficile, BD MAX Cdiff, IMDx C. difficile for Abbott m2000, and Illumigene C. difficile Assays for Direct Detection of Toxigenic Clostridium difficile in Stool Specimens.

    abstract:BACKGROUND:We evaluated the performance of four commercial nucleic acid amplification tests (NAATs: Xpert C. difficile, BD MAX Cdiff, IMDx C. difficile for Abbott m2000, and Illumigene C. difficile) for direct and rapid detection of Clostridium difficile toxin genes. METHODS:We compared four NAATs on the same set of 3...

    journal_title:Annals of laboratory medicine

    pub_type: 杂志文章

    doi:10.3343/alm.2016.36.2.131

    authors: Shin BM,Yoo SM,Shin WC

    更新日期:2016-03-01 00:00:00

  • Accessory Gene Regulator Polymorphism and Vancomycin Minimum Inhibitory Concentration in Methicillin-Resistant Staphylococcus aureus.

    abstract:BACKGROUND:Methicillin-resistant Staphylococcus aureus (MRSA) bacteremia with a vancomycin minimum inhibitory concentration (MIC) of 2 µg/mL presents a high rate of therapeutic failure in response to vancomycin. In addition, polymorphism in accessory gene regulator (agr) is associated with vancomycin therapeutic effect...

    journal_title:Annals of laboratory medicine

    pub_type: 杂志文章

    doi:10.3343/alm.2015.35.4.399

    authors: Park MJ,Kim HS,Kim HS,Kim JS,Song W,Kim MY,Lee YK,Kang HJ

    更新日期:2015-07-01 00:00:00

  • Use of PCR with sequence-specific primers for high-resolution human leukocyte antigen typing of patients with narcolepsy.

    abstract:BACKGROUND:Narcolepsy is a neurologic disorder characterized by excessive daytime sleepiness, symptoms of abnormal rapid eye movement (REM) sleep, and a strong association with HLA-DRB1*1501, -DQA1*0102, and -DQB1*0602. Here, we investigated the clinico-physical characteristics of Korean patients with narcolepsy, their...

    journal_title:Annals of laboratory medicine

    pub_type: 杂志文章

    doi:10.3343/alm.2012.32.1.57

    authors: Woo HI,Joo EY,Hong SB,Lee KW,Kang ES

    更新日期:2012-01-01 00:00:00

  • Plasma Levels and Diagnostic Utility of Macrophage Colony-Stimulating Factor, Matrix Metalloproteinase-9, and Tissue Inhibitor of Metalloproteinases-1 as New Biomarkers of Breast Cancer.

    abstract:BACKGROUND:Macrophage colony-stimulating factor (M-CSF), matrix metalloproteinase-9 (MMP-9), and its specific tissue inhibitor - tissue inhibitor of metalloproteinases-1 (TIMP-1) may play an important role in the pathogenesis and spread of cancer. We investigated the plasma levels of M-CSF, MMP-9, and TIMP-1 in compari...

    journal_title:Annals of laboratory medicine

    pub_type: 杂志文章

    doi:10.3343/alm.2016.36.3.223

    authors: Ławicki S,Głażewska EK,Sobolewska M,Będkowska GE,Szmitkowski M

    更新日期:2016-05-01 00:00:00

  • Clonal spread of carbapenem non-susceptible Acinetobacter baumannii in an intensive care unit in a teaching hospital in China.

    abstract:BACKGROUND:This study was aimed to investigate the genetic diversity and antibiotic resistance profile of the nosocomial infection agent Acinetobacter baumannii from a medical intensive care unit (ICU) in a teaching hospital in Suzhou, China. METHODS:The genetic relationship among A. baumannii isolates in an ICU was i...

    journal_title:Annals of laboratory medicine

    pub_type: 杂志文章

    doi:10.3343/alm.2012.32.6.413

    authors: Zhong Q,Xu W,Wu Y,Xu H

    更新日期:2012-11-01 00:00:00

  • Comparison of total and IgG ABO antibody titers in healthy individuals by using tube and column agglutination techniques.

    abstract:BACKGROUND:Most immune reactions related to transfusion and transplantation are caused by IgM ABO antibodies. However, IgG also plays an important role in these reactions. Therefore, a method to measure antibodies, including IgG, is necessary. We investigated ABO antibody titers of healthy individuals using a column ag...

    journal_title:Annals of laboratory medicine

    pub_type: 杂志文章

    doi:10.3343/alm.2014.34.3.223

    authors: Park ES,Jo KI,Shin JW,Park R,Choi TY,Bang HI,Chai GR,Yun SG

    更新日期:2014-05-01 00:00:00

  • Impact of genetic abnormalities on the prognoses and clinical parameters of patients with multiple myeloma.

    abstract:BACKGROUND:We reviewed patients with multiple myeloma (MM) in order to assess the incidence of genetic abnormalities and their associations with clinical parameters, risk groups, and prognosis. METHODS:A total of 130 patients with MM were enrolled. The incidences of genetic abnormalities were determined in all patient...

    journal_title:Annals of laboratory medicine

    pub_type: 杂志文章

    doi:10.3343/alm.2013.33.4.248

    authors: Jekarl DW,Min CK,Kwon A,Kim H,Chae H,Kim M,Lim J,Kim Y,Han K

    更新日期:2013-07-01 00:00:00

  • Comparative Evaluation Between the RealStar Pneumocystis jirovecii PCR Kit and the AmpliSens Pneumocystis jirovecii (carinii)-FRT PCR Kit for Detecting P. jirovecii in Non-HIV Immunocompromised Patients.

    abstract:BACKGROUND:Real-time PCR is more sensitive than microscopic examination for detecting Pneumocystis jirovecii. We compared the performance of two assays for detecting P. jirovecii DNA: the RealStar Pneumocystis jirovecii PCR Kit 1.0 CE (Altona Diagnostics, Hamburg, Germany) and the AmpliSens Pneumocystis jirovecii (cari...

    journal_title:Annals of laboratory medicine

    pub_type: 杂志文章

    doi:10.3343/alm.2019.39.2.176

    authors: Huh HJ,Lim KR,Ki CS,Huh K,Shim HJ,Song DJ,Kim YJ,Chung DR,Lee NY

    更新日期:2019-03-01 00:00:00

  • A Unique Mutational Spectrum of MLC1 in Korean Patients With Megalencephalic Leukoencephalopathy With Subcortical Cysts: p.Ala275Asp Founder Mutation and Maternal Uniparental Disomy of Chromosome 22.

    abstract:BACKGROUND:Megalencephalic leukoencephalopathy with subcortical cysts (MLC) is a rare inherited disorder characterized by infantile-onset macrocephaly, slow neurologic deterioration, and seizures. Mutations in the causative gene, MLC1, are found in approximately 75% of patients and are inherited in an autosomal recessi...

    journal_title:Annals of laboratory medicine

    pub_type: 杂志文章

    doi:10.3343/alm.2017.37.6.516

    authors: Choi SA,Kim SY,Yoon J,Choi J,Park SS,Seong MW,Kim H,Hwang H,Choi JE,Chae JH,Kim KJ,Kim S,Lee YJ,Nam SO,Lim BC

    更新日期:2017-11-01 00:00:00

  • Immune Checkpoint Programmed Cell Death Protein-1 (PD-1) Expression on Bone Marrow T Cell Subsets in Patients With Plasma Cell Myeloma.

    abstract:Background:Plasma cell myeloma (PCM) is caused by immune dysregulation. We evaluated the expression of immune checkpoint programmed cell death protein-1 (PD-1) on T cell subsets in PCM patients according to disease course and cytogenetic abnormalities. This study aimed to find a target group suitable for therapeutic us...

    journal_title:Annals of laboratory medicine

    pub_type: 杂志文章

    doi:10.3343/alm.2021.41.3.259

    authors: Lee MY,Park CJ,Cho YU,You E,Jang S,Seo EJ,Lee JH,Yoon DH,Suh C

    更新日期:2021-05-01 00:00:00

  • Comparison Between Soluble ST2 and High-Sensitivity Troponin I in Predicting Short-Term Mortality for Patients Presenting to the Emergency Department With Chest Pain.

    abstract:BACKGROUND:High-sensitivity cardiac troponin I (hs-cTnI) and the soluble isoform of suppression of tumorigenicity 2 (sST2) are useful prognostic biomarkers in acute coronary syndrome (ACS). The aim of this study was to test the short term prognostic value of sST2 compared with hs-cTnI in patients with chest pain. METH...

    journal_title:Annals of laboratory medicine

    pub_type: 杂志文章

    doi:10.3343/alm.2017.37.2.137

    authors: Marino R,Magrini L,Orsini F,Russo V,Cardelli P,Salerno G,Hur M,Di Somma S,GREAT NETWORK.

    更新日期:2017-03-01 00:00:00

  • Characterization of Extended-Spectrum β-Lactamase Genes of Shigella flexneri Isolates With Fosfomycin Resistance From Patients in China.

    abstract:BACKGROUND:The emergence of fosfomycin resistance and extended-spectrum β-lactamase (ESBL) genes is a serious threat to public health and a new challenge in shigellosis treatment. The purpose of this study was to identify fosfomycin resistance and characterize β-lactamase genes in fos-carrying isolates of Shigella flex...

    journal_title:Annals of laboratory medicine

    pub_type: 杂志文章

    doi:10.3343/alm.2017.37.5.415

    authors: Liu Y,Cheng Y,Yang H,Hu L,Cheng J,Ye Y,Li J

    更新日期:2017-09-01 00:00:00

  • Clonal Distribution of Clindamycin-Resistant Erythromycin-Susceptible (CRES) Streptococcus agalactiae in Korea Based on Whole Genome Sequences.

    abstract:BACKGROUND:The clindamycin-resistant erythromycin-susceptible (CRES) phenotype is rare in Streptococcus agalactiae (group B streptococci). We aimed to determine the molecular characteristics of CRES S. agalactiae using whole genome sequencing (WGS). METHODS:Sixty-six S. agalactiae isolates obtained from blood (N=26), ...

    journal_title:Annals of laboratory medicine

    pub_type: 杂志文章

    doi:10.3343/alm.2020.40.5.370

    authors: Takahashi T,Maeda T,Lee S,Lee DH,Kim S

    更新日期:2020-09-01 00:00:00

  • Update on procalcitonin measurements.

    abstract::Procalcitonin (PCT) is used as a biomarker for the diagnosis of sepsis, severe sepsis and septic shock. At the same time, PCT has also been used to guide antibiotic therapy. This review outlines the main indications for PCT measurement and points out possible pitfalls. The classic indications for PCT measurement are: ...

    journal_title:Annals of laboratory medicine

    pub_type: 杂志文章,评审

    doi:10.3343/alm.2014.34.4.263

    authors: Meisner M

    更新日期:2014-07-01 00:00:00

  • Point of care D-dimer testing in the emergency department: a bioequivalence study.

    abstract:BACKGROUND:D-dimer is used widely as a diagnostic aid in low- and moderate-risk patients with suspected venous thromboembolism (VTE). While our laboratory utilizes VIDAS D-dimer analyzer (bioMérieux SA, France), our emergency department (ED) recently procured a D-dimer analyzer AQT90 FLEX (Radiometer Medical ApS, Denma...

    journal_title:Annals of laboratory medicine

    pub_type: 杂志文章

    doi:10.3343/alm.2013.33.1.34

    authors: Perveen S,Unwin D,Shetty AL

    更新日期:2013-01-01 00:00:00

  • Stability of pH, Blood Gas Partial Pressure, Hemoglobin Oxygen Saturation Fraction, and Lactate Concentration.

    abstract:BACKGROUND:The storage temperature and time of blood gas samples collected in syringes constitute preanalytical variables that could affect blood gas or lactate concentration measurement results. We analyzed the effect of storage temperature and time delay on arterial or venous blood gas stability related to pH, partia...

    journal_title:Annals of laboratory medicine

    pub_type: 杂志文章

    doi:10.3343/alm.2020.40.6.448

    authors: Arbiol-Roca A,Imperiali CE,Dot-Bach D,Valero-Politi J,Dastis-Arias M

    更新日期:2020-11-01 00:00:00

  • The 2016 WHO versus 2008 WHO Criteria for the Diagnosis of Chronic Myelomonocytic Leukemia.

    abstract::The 2016 WHO diagnostic criteria for chronic myelomonocytic leukemia (CMML) require both absolute and relative monocytosis (≥1×10⁹/L and ≥10% of white blood cell counts) in peripheral blood. Moreover, myeloproliferative neoplasm (MPN) features in bone marrow and/or MPN-associated mutations tend to support MPN with mon...

    journal_title:Annals of laboratory medicine

    pub_type: 杂志文章

    doi:10.3343/alm.2018.38.5.481

    authors: Moon Y,Kim MH,Kim HR,Ahn JY,Huh J,Huh JY,Han JH,Park JS,Cho SR

    更新日期:2018-09-01 00:00:00

  • Morning Spot Urine Glucose-to-Creatinine Ratios Predict Overnight Urinary Glucose Excretion in Patients With Type 2 Diabetes.

    abstract:BACKGROUND:With the advent of sodium glucose co-transporter 2 inhibitors to control glucose and treat diabetes, laboratory data aided by either timed or spot glucose levels in the urine could be used as an alternative marker of drug response. The aim of this study was to assess the agreement between overnight urinary g...

    journal_title:Annals of laboratory medicine

    pub_type: 杂志文章

    doi:10.3343/alm.2017.37.1.9

    authors: Kim SR,Lee YH,Lee SG,Lee SH,Kang ES,Cha BS,Lee HC,Kim JH,Lee BW

    更新日期:2017-01-01 00:00:00

  • Application of the Whole Genome-Based Bacterial Identification System, TrueBac ID, Using Clinical Isolates That Were Not Identified With Three Matrix-Assisted Laser Desorption/Ionization Time-of-Flight Mass Spectrometry (MALDI-TOF MS) Systems.

    abstract:BACKGROUND:Next-generation sequencing is increasingly used for taxonomic identification of pathogenic bacterial isolates. We evaluated the performance of a newly introduced whole genome-based bacterial identification system, TrueBac ID (ChunLab Inc., Seoul, Korea), using clinical isolates that were not identified by th...

    journal_title:Annals of laboratory medicine

    pub_type: 杂志文章

    doi:10.3343/alm.2019.39.6.530

    authors: Ha SM,Kim CK,Roh J,Byun JH,Yang SJ,Choi SB,Chun J,Yong D

    更新日期:2019-11-01 00:00:00

  • Development of an Automated Image Analyzer for Microvessel Density Measurement in Bone Marrow Biopsies.

    abstract::Angiogenesis is important for the proliferation and survival of multiple myeloma (MM) cells. Bone marrow (BM) microvessel density (MVD) is a useful marker of angiogenesis and an increase in MVD can be used as a marker of poor prognosis in MM patients. We developed an automated image analyzer to assess MVD from images ...

    journal_title:Annals of laboratory medicine

    pub_type: 杂志文章

    doi:10.3343/alm.2020.40.4.312

    authors: Chung Y,Shin S,Shim H,Sohn JY,Lee DE,Lee H,Eom HS,Kim KG,Kong SY

    更新日期:2020-07-01 00:00:00