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 effects. The association between agr polymorphism and vancomycin MICs was investigated in MRSA isolates. METHODS:Agr group-specific PCR was conducted on 118 MRSA bloodstream isolates. Vancomycin susceptibility tests were conducted, while E-test GRD (bioMérieux SA, France) was used to detect heterogeneous vancomycin-intermediate S. aureus (hVISA). RESULTS:Of the 118 MRSA isolates, 59 (50.0%), 43 (36.4%), and 10 (8.5%) isolates belonged to agr group I, II, and III, respectively. Six isolates could not be classified. Twenty-six, 73, and 19 isolates presented a vancomycin MIC of 2, 1, and 0.5 µg/mL, respectively. Nine (34.6%), 14 (53.8%), and 2 (7.7%) isolates with MICs of 2 µg/mL belonged to agr group I, II, and III, respectively. Thirty-seven (50.6%), 26 (35.6%), and 6 (8.2%) isolates with MICs of 1 µg/mL belonged to agr group I, II, and III, respectively. Thirteen (68.4%), 3 (15.8%), and 2 (10.5%) isolates with MICs of 0.5 µg/mL belonged to agr group I, II, and III, respectively. The agr group II presented more isolates with MIC of 2 µg/mL (32.6%) than the agr non-group II (16%). Four isolates tested positive for hVISA. Three of them belonged to agr group II. CONCLUSIONS:MRSA isolates with vancomycin MIC of 2 µg/mL were more common in agr group II than in agr non-group II.

journal_name

Ann Lab Med

authors

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

doi

10.3343/alm.2015.35.4.399

subject

Has Abstract

pub_date

2015-07-01 00:00:00

pages

399-403

issue

4

eissn

2234-3806

issn

2234-3814

journal_volume

35

pub_type

杂志文章
  • 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

  • Erratum: COVID-19 Molecular Testing in Korea: Practical Essentials and Answers From Experts Based on Experiences of Emergency Use Authorization Assays.

    abstract::[This corrects the article on p. 439 in vol. 40.]. ...

    journal_title:Annals of laboratory medicine

    pub_type: 杂志文章,已发布勘误

    doi:10.3343/alm.2021.41.1.126

    authors: Sung H,Roh KH,Hong KH,Seong MW,Ryoo N,Kim HS,Lee J,Kim SY,Ryu SW,Kim MN,Han MG,Lee SW,Lee H,Yoo CK

    更新日期:2021-01-01 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

  • Prevalence of blaZ Gene and Performance of Phenotypic Tests to Detect Penicillinase in Staphylococcus aureus Isolates from Japan.

    abstract::Guidelines recommend that clinical laboratories perform phenotypic tests (nitrocefin-based test and penicillin 10-U [P10] or 1-U [P1] zone edge tests) to detect penicillinase in Staphylococcus aureus isolates. This study aimed to assess the prevalence of blaZ encoding penicillinase and perform various phenotypic tests...

    journal_title:Annals of laboratory medicine

    pub_type: 杂志文章

    doi:10.3343/alm.2018.38.2.155

    authors: Takayama Y,Tanaka T,Oikawa K,Fukano N,Goto M,Takahashi T

    更新日期:2018-03-01 00:00:00

  • Effect of Irradiation on Microparticles in Red Blood Cell Concentrates.

    abstract::Changes in microparticles (MP) from red blood cell (RBC) concentrates in the context of irradiation have not been investigated. The aim of this study was to evaluate how irradiation affects the number of MPs within transfusion components. Twenty RBC concentrates, within 14 days after donation, were exposed to gamma ra...

    journal_title:Annals of laboratory medicine

    pub_type: 杂志文章

    doi:10.3343/alm.2016.36.4.362

    authors: Cho CH,Yun SG,Koh YE,Lim CS

    更新日期:2016-07-01 00:00:00

  • Prediction of HLA-DQ in Deceased Donors and its Clinical Significance in Kidney Transplantation.

    abstract:Background:HLA-DQ typing in deceased donors is not mandatory in Korea. Therefore, when patients develop DQ antibodies after kidney transplantation (KT) from deceased donor, it is impossible to determine whether they are donor-specific antibodies (DSA). We developed DQ prediction programs for the HLA gene and evaluated ...

    journal_title:Annals of laboratory medicine

    pub_type: 杂志文章

    doi:10.3343/alm.2021.41.2.190

    authors: Kim SK,Yang JJ,Hwang SH,Sung H,Shin S,Ko SY,Oh HB

    更新日期:2021-03-01 00:00:00

  • The impact of HLA and KIR ligand mismatching on unrelated allogeneic hematopoietic stem cell transplantation in Korean adult patients.

    abstract:BACKGROUND:The impact of HLA and KIR ligand mismatching on the outcome of hematopoietic stem cell transplantation (HSCT) remains unclear. Previous reports have identified considerable ethnic differences in the impact of HLA and KIR ligand mismatches, as well as KIR ligand status, on HSCT; however, to date, no data has ...

    journal_title:Annals of laboratory medicine

    pub_type: 杂志文章

    doi:10.3343/alm.2015.35.1.111

    authors: Park H,Rho EY,In JW,Kim I,Yoon SS,Park S,Shin S,Park KU,Song EY

    更新日期:2015-01-01 00:00:00

  • Antibiotic resistance in Helicobacter pylori strains and its effect on H. pylori eradication rates in a single center in Korea.

    abstract:BACKGROUND:Clarithromycin, amoxicillin, metronidazole, tetracycline, and levofloxacin have been commonly used for the eradication of Helicobacter pylori. We compared the change in antibiotic resistance of H. pylori strains during two separate periods and investigated the effect of antibiotic resistance on H. pylori era...

    journal_title:Annals of laboratory medicine

    pub_type: 杂志文章

    doi:10.3343/alm.2013.33.6.415

    authors: An B,Moon BS,Kim H,Lim HC,Lee YC,Lee G,Kim SH,Park M,Kim JB

    更新日期:2013-11-01 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

  • A Population-Based Genomic Study of Inherited Metabolic Diseases Detected Through Newborn Screening.

    abstract:BACKGROUND:A newborn screening (NBS) program has been utilized to detect asymptomatic newborns with inherited metabolic diseases (IMDs). There have been some bottlenecks such as false-positives and imprecision in the current NBS tests. To overcome these issues, we developed a multigene panel for IMD testing and investi...

    journal_title:Annals of laboratory medicine

    pub_type: 杂志文章

    doi:10.3343/alm.2016.36.6.561

    authors: Park KJ,Park S,Lee E,Park JH,Park JH,Park HD,Lee SY,Kim JW

    更新日期:2016-11-01 00:00:00

  • New decision criteria for selecting delta check methods based on the ratio of the delta difference to the width of the reference range can be generally applicable for each clinical chemistry test item.

    abstract:BACKGROUND:Many laboratories use 4 delta check methods: delta difference, delta percent change, rate difference, and rate percent change. However, guidelines regarding decision criteria for selecting delta check methods have not yet been provided. We present new decision criteria for selecting delta check methods for e...

    journal_title:Annals of laboratory medicine

    pub_type: 杂志文章

    doi:10.3343/alm.2012.32.5.345

    authors: Park SH,Kim SY,Lee W,Chun S,Min WK

    更新日期:2012-09-01 00:00:00

  • Evaluation of PCR-reverse blot hybridization assay, REBA Sepsis-ID test, for simultaneous identification of bacterial pathogens and mecA and van genes from blood culture bottles.

    abstract:BACKGROUND:The aim of this study was to evaluate a newly developed PCR-based reverse blot hybridization assay (PCR-REBA), REBA Sepsis-ID (M&D, Wonju, Korea), to rapidly detect the presence of bacteremia and antimicrobial resistance gene in blood culture samples. METHODS:One thousand four hundred consecutive blood cult...

    journal_title:Annals of laboratory medicine

    pub_type: 杂志文章

    doi:10.3343/alm.2014.34.6.446

    authors: Park SD,Lee G,Wang HY,Park M,Kim S,Kim H,Kim J,Kim YK,Kim HY,Lee H,Uh Y,Kim JB

    更新日期:2014-11-01 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

  • 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

  • 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

  • The Platelet-to-Lymphocyte Ratio as an Inflammatory Marker in Rheumatic Diseases.

    abstract::The platelet-to-lymphocyte ratio (PLR) has emerged as an informative marker revealing shifts in platelet and lymphocyte counts due to acute inflammatory and prothrombotic states. PLR has been extensively examined in neoplastic diseases accompanied by immune suppression and thrombosis, which can be predicted by combine...

    journal_title:Annals of laboratory medicine

    pub_type: 杂志文章,评审

    doi:10.3343/alm.2019.39.4.345

    authors: Gasparyan AY,Ayvazyan L,Mukanova U,Yessirkepov M,Kitas GD

    更新日期:2019-07-01 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

  • Galectin-3 Reflects the Echocardiographic Grades of Left Ventricular Diastolic Dysfunction.

    abstract:BACKGROUND:The level of Galectin-3 (Gal-3) protein purportedly reflects an ongoing cardiac fibrotic process and has been associated with ventricular remodeling, which is instrumental in the development of heart failure with preserved ejection fraction (HFpEF) syndrome. The aim of this study was to investigate the poten...

    journal_title:Annals of laboratory medicine

    pub_type: 杂志文章

    doi:10.3343/alm.2018.38.4.306

    authors: Ansari U,Behnes M,Hoffmann J,Natale M,Fastner C,El-Battrawy I,Rusnak J,Kim SH,Lang S,Hoffmann U,Bertsch T,Borggrefe M,Akin I

    更新日期:2018-07-01 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

  • 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

  • Delamanid, Bedaquiline, and Linezolid Minimum Inhibitory Concentration Distributions and Resistance-related Gene Mutations in Multidrug-resistant and Extensively Drug-resistant Tuberculosis in Korea.

    abstract:BACKGROUND:Delamanid, bedaquiline, and linezolid have recently been approved for the treatment of multidrug- and extensively drug-resistant (MDR and XDR, respectively) tuberculosis (TB). To use these drugs effectively, drug susceptibility tests, including rapid molecular techniques, are required for accurate diagnosis ...

    journal_title:Annals of laboratory medicine

    pub_type: 杂志文章

    doi:10.3343/alm.2018.38.6.563

    authors: Yang JS,Kim KJ,Choi H,Lee SH

    更新日期:2018-11-01 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

  • Evaluation of the QuantaMatrix Multiplexed Assay Platform for Molecular Diagnosis of Multidrug- and Extensively Drug-Resistant Tuberculosis Using Clinical Strains Isolated in Myanmar.

    abstract:BACKGROUND:Although the incidence of tuberculosis (TB) is decreasing, cases of multidrug-resistant (MDR) TB and extensively drug-resistant (XDR) TB continue to increase. As conventional phenotype drug susceptibility testing (pDST) takes six to eight weeks, molecular assays are widely used to determine drug resistance. ...

    journal_title:Annals of laboratory medicine

    pub_type: 杂志文章

    doi:10.3343/alm.2020.40.2.142

    authors: Chang Y,Kim S,Kim Y,Ei PW,Hwang D,Lee J,Chang CL,Lee H

    更新日期:2020-03-01 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

  • 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

  • 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

  • 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

  • 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

  • Biochemical and Genetic Analysis of Seven Korean Individuals With Suspected Metachromatic Leukodystrophy.

    abstract::Metachromatic leukodystrophy (MLD) is an autosomal recessive disease caused by a deficiency in arylsulfatase A (ARSA). However, decreased ARSA activity is also observed in pseudodeficiency (PD). To distinguish between MLD and PD, we performed gene mutation and sulfatide analyses by using dried blood spots (DBSs) from ...

    journal_title:Annals of laboratory medicine

    pub_type: 杂志文章

    doi:10.3343/alm.2015.35.4.458

    authors: Han M,Jun SH,Lee YJ,Eun BL,Lee SJ,Seong MW,Park SS,Song SH,Park HD,Song J

    更新日期:2015-07-01 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