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

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

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

更新日期：2015-05-01 00:00:00

abstract：BACKGROUND:As the spread of carbapenemase-producing Enterobacteriaceae poses a critical threat to public health, rapid detection of carbapenemase genes is urgently required for prompt initiation of appropriate antimicrobial therapy and infection control. We evaluated the performance of Xpert Carba-R v.2 (Cepheid, USA) ...

journal_title：Annals of laboratory medicine

authors： Byun JH,Kim YA,Kim M,Kim B,Choi JY,Park YS,Yong D

更新日期：2020-05-01 00:00:00

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

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

更新日期：2020-09-01 00:00:00

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

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

更新日期：2018-03-01 00:00:00

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

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

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

authors： Yang JS,Kim KJ,Choi H,Lee SH

更新日期：2018-11-01 00:00:00

abstract：BACKGROUND:During the 2015 outbreak of Middle East Respiratory Syndrome coronavirus (MERS-CoV), six different commercial MERS-CoV RNA detection kits based on real-time reverse-transcription polymerase chain reaction (rRT-PCR) were available in Korea. We performed analytical and clinical validations of these kits. METH...

journal_title：Annals of laboratory medicine

authors： Kim MN,Ko YJ,Seong MW,Kim JS,Shin BM,Sung H

更新日期：2016-09-01 00:00:00

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

authors： Zhong Q,Xu W,Wu Y,Xu H

更新日期：2012-11-01 00:00:00

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

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

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

authors： Shin BM,Yoo SM,Shin WC

更新日期：2016-03-01 00:00:00

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

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

abstract：:In 2015, the American College of Medical Genetics and Genomics (ACMG), together with the Association for Molecular Pathology (AMP), published the latest guidelines for the interpretation of sequence variants, which have been widely adopted into clinical practice. Despite these standardized efforts, the degrees of subj...

journal_title：Annals of laboratory medicine

authors： Kim YE,Ki CS,Jang MA

更新日期：2019-09-01 00:00:00

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

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

abstract：:Long QT syndrome (LQTS) is an inherited cardiac disease characterized by a prolonged heart rate-corrected QT (QTc) interval. We investigated the genetic causes in patients with prolonged QTc intervals who were negative for pathogenic variants in three major LQTS-related genes (KCNQ1, KCNH2, and SCN5A). Molecular genet...

journal_title：Annals of laboratory medicine

authors： Seo SH,Kim SY,Cho SI,Park H,Lee S,Choi JM,Kim MJ,Lee JS,Ahn KJ,Song MK,Bae EJ,Park SS,Seong MW

更新日期：2018-01-01 00:00:00

abstract：BACKGROUND:To rapidly obtain outpatient results, we use plasma separation tubes (PST) for chemistry analysis. If lactate dehydrogenase measurement is required, serum separation tubes (SST) are used. There has been no evaluation of hemolysis with these tubes. We compared the hemolytic index (HI) obtained by using PST an...

journal_title：Annals of laboratory medicine

authors： Ko DH,Won D,Jeong TD,Lee W,Chun S,Min WK

更新日期：2015-03-01 00:00:00

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

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

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

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

更新日期：2019-07-01 00:00:00

abstract：BACKGROUND:We developed a single-color multitarget flow cytometry (SM-FC) assay, a single-tube assay with graded mean fluorescence intensities (MFIs). We evaluated the repeatability of SM-FC, and its correlation with multicolor flow cytometry (MFC), to assess its application as a routine FC assay. METHODS:We selected ...

journal_title：Annals of laboratory medicine

authors： Park J,Han K

更新日期：2012-05-01 00:00:00

abstract：BACKGROUND:Hepatitis E virus (HEV) causes epidemics in developing countries and is primarily transmitted through the fecal-oral route. There have been recent reports on the zoonotic spread of the virus, and several animal species, primarily pigs, have been recognized as reservoirs of HEV. Because of its possible spread...

journal_title：Annals of laboratory medicine

authors： Mazalovska M,Varadinov N,Koynarski T,Minkov I,Teoharov P,Lomonossoff GP,Zahmanova G

更新日期：2017-07-01 00:00:00

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

authors： Park S,Chung HS,Lee M

更新日期：2015-03-01 00:00:00

abstract：BACKGROUND:Although Th2 immune activation is predominant in allergic diseases, neopterinlevels and indoleamine 2,3-dioxygenase (IDO)-1 activity (kynurenine:tryptophan ratio), which reflect Th1 immune activity, increase with interferon-gamma (IFN-γ) stimulation. We investigated neopterin, tryptophan, and kynurenine leve...

journal_title：Annals of laboratory medicine

authors： Ünüvar S,Erge D,Kılıçarslan B,Gözükara Bağ HG,Çatal F,Girgin G,Baydar T

更新日期：2019-05-01 00:00:00

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

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

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

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

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

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

更新日期：2013-05-01 00:00:00

abstract：BACKGROUND:Mutations in calreticulin (CALR) have been reported to be key markers in the molecular diagnosis of myeloid proliferative neoplasms. In most previous reports, CALR mutations were analyzed by using Sanger sequencing. Here, we report a new, rapid, and convenient system for screening CALR mutations without sequ...

journal_title：Annals of laboratory medicine

authors： Jeong JH,Lee HT,Seo JY,Seo YH,Kim KH,Kim MJ,Lee JH,Park J,Hong JS,Park PW,Ahn JY

更新日期：2016-07-01 00:00:00

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

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

更新日期：2012-01-01 00:00:00

abstract：:We aimed to observe antimicrobial resistance patterns and integron carriage of Escherichia coli isolates causing community-acquired infections. Two hundred sixty-eight E. coli strains were obtained from outpatients with various infections at different polyclinics at the 82nd Year of State Hospital in Rize, Turkey. Sus...

journal_title：Annals of laboratory medicine

authors： Copur-Cicek A,Ozgumus OB,Saral A,Sandalli C

更新日期：2014-03-01 00:00:00

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

authors： Meisner M

更新日期：2014-07-01 00:00:00

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

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

更新日期：2016-05-01 00:00:00

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

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

更新日期：2012-09-01 00:00:00