Development of a molecular-beacon assay to detect the G1896A precore mutation in hepatitis B virus-infected individuals.

Abstract:

:The 1896 precore (PC) mutation is the most frequent cause of hepatitis B virus e-antigen (HBeAg)-negative chronic hepatitis B virus (HBV) infection. Detection of the 1896 PC mutation has application in studies monitoring antiviral therapy and the natural history of the disease. Identification of this mutation is usually performed by direct sequencing, which is both costly and laborious. The aim of this study was to develop a rapid, high-throughput assay to detect the 1896 PC mutation using real-time PCR and molecular-beacon technology. The assay was initially standardized on oligonucleotide targets and plasmids containing the wild-type (WT) and PC mutation and then tested on plasma samples from children with HBV DNA of >10(6) copies/ml. Nine individuals were HBeAg negative and suspected to harbor HBeAg mutations, while 12 children were HBeAg positive and selected as controls. Ninety percent (19 of 21) of plasma samples tested with molecular beacons were in complete agreement with sequencing results. The remaining 10% (2 of 21) of samples were identified as heterogeneous mixtures of WT and mutant virus by molecular beacons, though sequencing found only a homogeneous mutant in both cases. Overall, the 1896 PC mutation was detected by this assay in 55.5% of the children with HBeAg-negative infection. In summary, this assay is a rapid, sensitive, and specific technique that effectively discriminates WT from 1896 PC mutant HBV and may be useful in clinical and epidemiological studies.

journal_name

J Clin Microbiol

authors

Waltz TL,Marras S,Rochford G,Nolan J,Lee E,Melegari M,Pollack H

doi

10.1128/JCM.43.1.254-258.2005

subject

Has Abstract

pub_date

2005-01-01 00:00:00

pages

254-8

issue

1

eissn

0095-1137

issn

1098-660X

pii

43/1/254

journal_volume

43

pub_type

杂志文章
  • Disseminated Scedosporium/Pseudallescheria infection after double-lung transplantation in patients with cystic fibrosis.

    abstract::We report a case of disseminated Scedosporium/Pseudallescheria infection due to Pseudallescheria boydii sensu stricto after lung transplantation in a patient with cystic fibrosis. Dissemination occurred under voriconazole. Despite surgery and combination therapy with voriconazole, caspofungin, and terbinafine, the pat...

    journal_title:Journal of clinical microbiology

    pub_type: 杂志文章

    doi:10.1128/JCM.01840-09

    authors: Morio F,Horeau-Langlard D,Gay-Andrieu F,Talarmin JP,Haloun A,Treilhaud M,Despins P,Jossic F,Nourry L,Danner-Boucher I,Pattier S,Bouchara JP,Le Pape P,Miegeville M

    更新日期:2010-05-01 00:00:00

  • Cross-reactions between Actinobacillus (Haemophilus) pleuropneumoniae strains of serotypes 1 and 9.

    abstract::Actinobacillus pleuropneumoniae strains of serotypes 1 and 9 were studied for their serological properties by means of agglutination, coagglutination (CoA), indirect hemagglutination (IHA), Co-IHA, ring precipitation (RP), and immunodiffusion (ID) tests. Particulate and soluble antigens of unheated and heat-treated ba...

    journal_title:Journal of clinical microbiology

    pub_type: 杂志文章

    doi:10.1128/JCM.28.3.535-539.1990

    authors: Mittal KR

    更新日期:1990-03-01 00:00:00

  • LDBio-Toxo II immunoglobulin G Western blot confirmatory test for anti-toxoplasma antibody detection.

    abstract::Tests commonly used for routine determination of anti-Toxoplasma gondii immunoglobulin G (IgG) antibodies show a high level of consistency. However, considerable variations between commercial screening tests are still observed in detecting antibodies present at low concentrations, leading to a number of discrepant and...

    journal_title:Journal of clinical microbiology

    pub_type: 杂志文章

    doi:10.1128/JCM.00182-08

    authors: Franck J,Garin YJ,Dumon H

    更新日期:2008-07-01 00:00:00

  • Detection of Group A Streptococcus from Pharyngeal Swab Samples by Bacterial Culture Is Challenged by a Novel mariPOC Point-of-Care Test.

    abstract::mariPOC is a novel point-of-care test system for rapid detection of respiratory tract infections. We compared the performance of the mariPOC test to that of bacterial culture for detecting group A streptococcus (GAS) in 219 pharyngitis patients (ages 1-64 years) and 109 healthy asymptomatic controls (ages 19-69 years)...

    journal_title:Journal of clinical microbiology

    pub_type: 杂志文章

    doi:10.1128/JCM.00018-15

    authors: Vakkila J,Koskinen JO,Brandt A,Muotiala A,Liukko V,Soittu S,Meriluoto S,Vesalainen M,Huovinen P,Irjala K

    更新日期:2015-07-01 00:00:00

  • Serum immunoglobulin A response to Norwalk virus infection.

    abstract::We describe the serum immunoglobulin A (IgA) antibody response to Norwalk virus infection in human volunteers and compare it with previously described IgM and total antibody responses. Whereas specific IgA and IgM peak within 2 weeks after onset of symptoms, titers of total blocking antibody continue to rise, implying...

    journal_title:Journal of clinical microbiology

    pub_type: 杂志文章

    doi:10.1128/JCM.27.6.1417-1418.1989

    authors: Erdman DD,Gary GW,Anderson LJ

    更新日期:1989-06-01 00:00:00

  • Identification of clinically important ascomycetous yeasts based on nucleotide divergence in the 5' end of the large-subunit (26S) ribosomal DNA gene.

    abstract::Clinically important species of Candida and related organisms were compared for extent of nucleotide divergence in the 5' end of the large-subunit (26S) ribosomal DNA (rDNA) gene. This rDNA region is sufficiently variable to allow reliable separation of all known clinically significant yeast species. Of the 204 descri...

    journal_title:Journal of clinical microbiology

    pub_type: 杂志文章

    doi:10.1128/JCM.35.5.1216-1223.1997

    authors: Kurtzman CP,Robnett CJ

    更新日期:1997-05-01 00:00:00

  • Detection of herpes simplex virus by the Kodak SureCell Herpes Test.

    abstract::The Kodak SureCell Herpes Test Kit (SC-HSV) was evaluated in a high-risk sexually transmitted disease clinic population. A total of 97 lesion specimens (from 94 patients) were tested for the presence of herpes simplex virus by SC-HSV and by spin-amplified tissue culture confirmed by an enzyme immunoassay. The overall ...

    journal_title:Journal of clinical microbiology

    pub_type: 杂志文章

    doi:10.1128/JCM.28.9.2117-2119.1990

    authors: Dorian KJ,Beatty E,Atterbury KE

    更新日期:1990-09-01 00:00:00

  • Rapid detection of methicillin-resistant Staphylococcus aureus strains not identified by slide agglutination tests.

    abstract::Seventy-nine methicillin-resistant Staphylococcus aureus (MRSA) strains, isolated during 1980 to 1990, were classified as MRSA Aggl- (14 strains) and MRSA Aggl+ (65 strains) strains on the basis of test results in slide agglutination assays designed to detect fibrinogen-binding protein (clumping factor) and protein A ...

    journal_title:Journal of clinical microbiology

    pub_type: 杂志文章

    doi:10.1128/JCM.32.1.143-147.1994

    authors: Kuusela P,Hildén P,Savolainen K,Vuento M,Lyytikäinen O,Vuopio-Varkila J

    更新日期:1994-01-01 00:00:00

  • Identification of medically relevant Trichosporon species based on sequences of internal transcribed spacer regions and construction of a database for Trichosporon identification.

    abstract::The nucleotide sequences of the internal transcribed spacer (ITS) 1 and 2 regions in the rRNA gene were determined by directly sequencing PCR-amplified fragments for all of the species (17 species and five varieties) in the genus Trichosporon. Comparative sequence analysis suggests that six medically relevant species,...

    journal_title:Journal of clinical microbiology

    pub_type: 杂志文章

    doi:10.1128/JCM.37.6.1985-1993.1999

    authors: Sugita T,Nishikawa A,Ikeda R,Shinoda T

    更新日期:1999-06-01 00:00:00

  • Prevalence and characterization of Shiga toxin-producing Escherichia coli isolated from cattle, food, and children during a one-year prospective study in France.

    abstract::During a 1-year survey of Shiga toxin-producing Escherichia coli (STEC) prevalence in central France, 2,143 samples were investigated by PCR for Shiga toxin-encoding genes. A total of 330 (70%) of 471 fecal samples collected from healthy cattle at the Clermont-Ferrand slaughterhouse, 47 (11%) of 411 beef samples, 60 (...

    journal_title:Journal of clinical microbiology

    pub_type: 杂志文章

    doi:10.1128/JCM.38.3.1023-1031.2000

    authors: Pradel N,Livrelli V,De Champs C,Palcoux JB,Reynaud A,Scheutz F,Sirot J,Joly B,Forestier C

    更新日期:2000-03-01 00:00:00

  • High prevalence of Helicobacter Species detected in laboratory mouse strains by multiplex PCR-denaturing gradient gel electrophoresis and pyrosequencing.

    abstract::Rodent models have been developed to study the pathogenesis of diseases caused by Helicobacter pylori, as well as by other gastric and intestinal Helicobacter spp., but some murine enteric Helicobacter spp. cause hepatobiliary and intestinal tract diseases in specific inbred strains of laboratory mice. To identify the...

    journal_title:Journal of clinical microbiology

    pub_type: 杂志文章

    doi:10.1128/JCM.42.8.3781-3788.2004

    authors: Nilsson HO,Ouis IS,Stenram U,Ljungh A,Moran AP,Wadström T,Al-Soud WA

    更新日期:2004-08-01 00:00:00

  • Evaluation of an Indirect Enzyme-Linked Immunosorbent Assay Based on Recombinant Baculovirus-Expressed Rift Valley Fever Virus Nucleoprotein as the Diagnostic Antigen.

    abstract::The increasing risk of Rift Valley fever virus (RVFV) infection as a global veterinary and public health threat demands the development of safe and accurate diagnostic tests. The aim of this study was to assess the suitability of a baculovirus expression system to produce recombinant RVFV nucleoprotein (N) for use as ...

    journal_title:Journal of clinical microbiology

    pub_type: 杂志文章

    doi:10.1128/JCM.01058-19

    authors: Faburay B,Wilson WC,Secka A,Drolet B,McVey DS,Richt JA

    更新日期:2019-09-24 00:00:00

  • New clustered regularly interspaced short palindromic repeat locus spacer pair typing method based on the newly incorporated spacer for Salmonella enterica.

    abstract::A clustered regularly interspaced short palindromic repeat (CRISPR) typing method has recently been developed and used for typing and subtyping of Salmonella spp., but it is complicated and labor intensive because it has to analyze all spacers in two CRISPR loci. Here, we developed a more convenient and efficient meth...

    journal_title:Journal of clinical microbiology

    pub_type: 杂志文章

    doi:10.1128/JCM.00696-14

    authors: Li H,Li P,Xie J,Yi S,Yang C,Wang J,Sun J,Liu N,Wang X,Wu Z,Wang L,Hao R,Wang Y,Jia L,Li K,Qiu S,Song H

    更新日期:2014-08-01 00:00:00

  • Evaluation of a Novel Aspergillus Antigen Enzyme-Linked Immunosorbent Assay.

    abstract::Invasive aspergillosis (IA) is a life-threatening infection that mainly occurs in immunocompromised patients. Here, we compared the novel Aspergillus-specific galactomannoprotein (GP) enzyme-linked immunosorbent assay (ELISA) (Euroimmun Medizinische Labordiagnostika AG) to the established Platelia Aspergillus galactom...

    journal_title:Journal of clinical microbiology

    pub_type: 杂志文章

    doi:10.1128/JCM.00136-19

    authors: Dichtl K,Seybold U,Ormanns S,Horns H,Wagener J

    更新日期:2019-06-25 00:00:00

  • Identification of spirochetes associated with contagious ovine digital dermatitis.

    abstract::Spirochetes of the genus Treponema were cultured from 7 of 10 cases of digital dermatitis in sheep. Two cultures comprised Treponema phagedenis-like and Treponema medium/Treponema vincentii-like spirochetes, respectively, while the remaining cultures comprised mixed populations of Treponema medium/Treponema vincentii-...

    journal_title:Journal of clinical microbiology

    pub_type: 杂志文章

    doi:10.1128/JCM.01934-08

    authors: Sayers G,Marques PX,Evans NJ,O'Grady L,Doherty ML,Carter SD,Nally JE

    更新日期:2009-04-01 00:00:00

  • Evaluation of the BD Phoenix automated microbiology system for identification and antimicrobial susceptibility testing of staphylococci and enterococci.

    abstract::We evaluated the Phoenix automated microbiology system (BD Diagnostic Systems, Sparks, MD) for the identification (ID) and antimicrobial susceptibility testing (AST) of challenge and clinical staphylococci and enterococci recovered from patients in a tertiary-care medical center. In total, 424 isolates were tested: 90...

    journal_title:Journal of clinical microbiology

    pub_type: 杂志文章

    doi:10.1128/JCM.02636-05

    authors: Carroll KC,Borek AP,Burger C,Glanz B,Bhally H,Henciak S,Flayhart DC

    更新日期:2006-06-01 00:00:00

  • Novel rotavirus VP7 typing assay using a one-step reverse transcriptase PCR protocol and product sequencing and utility of the assay for epidemiological studies and strain characterization, including serotype subgroup analysis.

    abstract::Rotavirus is the most common cause of severe dehydrating gastroenteritis in infants. To date, 10 different serotypes of rotavirus have been identified in human stools. While four or five serotypes dominate, serotype circulation varies with season and geography. Since our laboratory has been involved in the development...

    journal_title:Journal of clinical microbiology

    pub_type: 杂志文章

    doi:10.1128/JCM.43.12.5876-5880.2005

    authors: DiStefano DJ,Kraiouchkine N,Mallette L,Maliga M,Kulnis G,Keller PM,Clark HF,Shaw AR

    更新日期:2005-12-01 00:00:00

  • Performance of clinical laboratories in South African parasitology proficiency testing surveys between 2004 and 2010.

    abstract::Performance in proficiency testing (PT) schemes is an objective measure of a laboratory's best performance. We examined the performance of participants in two parasitology PT schemes in South Africa from 2004 through 2010. The average rates of acceptable scores over the period were 58% and 66% for the stool and blood ...

    journal_title:Journal of clinical microbiology

    pub_type: 杂志文章

    doi:10.1128/JCM.01308-12

    authors: Poonsamy B,Dini L,Frean J

    更新日期:2012-10-01 00:00:00

  • Is Chlamydia pneumoniae present in brain lesions of patients with multiple sclerosis?

    abstract::We investigated the presence of Chlamydia pneumoniae in 81 normal and pathological specimens obtained from postmortem brain tissues of patients with multiple sclerosis and with other neurological or nonneurological diseases. The assays used included PCR amplification of all DNA samples in the initial study. Culture an...

    journal_title:Journal of clinical microbiology

    pub_type: 杂志文章

    doi:10.1128/JCM.38.11.4274-4276.2000

    authors: Hammerschlag MR,Ke Z,Lu F,Roblin P,Boman J,Kalman B

    更新日期:2000-11-01 00:00:00

  • Ureaplasma urealyticum biovar specificity and diversity are encoded in multiple-banded antigen gene.

    abstract::Ureaplasma urealyticum is a commensal organism of the lower genital tract of females, but in a subpopulation of individuals, it can invade the upper genital tract. It is a significant cause of chorioamnionitis and neonatal morbidity and mortality. There are 14 recognized serovars of U. urealyticum; these can be divide...

    journal_title:Journal of clinical microbiology

    pub_type: 杂志文章

    doi:10.1128/JCM.32.6.1464-1469.1994

    authors: Teng LJ,Zheng X,Glass JI,Watson HL,Tsai J,Cassell GH

    更新日期:1994-06-01 00:00:00

  • Prevalence of Taiwan variant of Epstein-Barr virus in throat washings from patients with head and neck tumors in Taiwan.

    abstract::The prevalence of the Epstein-Barr virus (EBV) Taiwan variant was investigated in the throat washing (TW) samples from patients with head and neck tumors, persons with nonmalignant diseases, and healthy adults in Taiwan. By using the EBV (BNLF-1 gene)-specific primers and PCR, the EBV latent membrane protein gene BNLF...

    journal_title:Journal of clinical microbiology

    pub_type: 杂志文章

    doi:10.1128/JCM.32.1.28-31.1994

    authors: Jeng KC,Hsu CY,Liu MT,Chung TT,Liu ST

    更新日期:1994-01-01 00:00:00

  • DNA fingerprinting of Mycobacterium tuberculosis complex culture isolates collected in Brazil and spotted onto filter paper.

    abstract::The usefulness of filter paper for preservation of bacterial cells was shown by mixed-linker DNA fingerprint analysis of Mycobacterium tuberculosis isolates from 77 Brazilian patients. DNA fingerprints of samples spotted onto filter paper and conventional culture material were identical. Thus, filter paper specimens a...

    journal_title:Journal of clinical microbiology

    pub_type: 杂志文章

    doi:10.1128/JCM.36.2.573-576.1998

    authors: Burger M,Raskin S,Brockelt SR,Amthor B,Geiss HK,Haas WH

    更新日期:1998-02-01 00:00:00

  • Prospective comparison of the diagnostic potential of real-time PCR, double-sandwich enzyme-linked immunosorbent assay for galactomannan, and a (1-->3)-beta-D-glucan test in weekly screening for invasive aspergillosis in patients with hematological disord

    abstract::The establishment of an optimal noninvasive method for diagnosing invasive aspergillosis (IA) is needed to improve the management of this life-threatening infection in patients with hematological disorders, and a number of noninvasive tests for IA that target different fungal components, including galactomannan, (1-->...

    journal_title:Journal of clinical microbiology

    pub_type: 杂志文章

    doi:10.1128/JCM.42.6.2733-2741.2004

    authors: Kawazu M,Kanda Y,Nannya Y,Aoki K,Kurokawa M,Chiba S,Motokura T,Hirai H,Ogawa S

    更新日期:2004-06-01 00:00:00

  • Loop-mediated isothermal amplification test for detection of Neisseria gonorrhoeae in urine samples and tolerance of the assay to the presence of urea.

    abstract::A loop-mediated isothermal amplification (LAMP) assay for open reading frame 1 (ORF1) of the glutamine synthetase gene of Neisseria gonorrhoeae was able to tolerate urea concentrations of ≤ 1.8 M, compared with a PCR assay that was functional at concentrations of <100 mM. The LAMP assay was as sensitive as the PCR ass...

    journal_title:Journal of clinical microbiology

    pub_type: 杂志文章

    doi:10.1128/JCM.00314-14

    authors: Edwards T,Burke PA,Smalley HB,Gillies L,Hobbs G

    更新日期:2014-06-01 00:00:00

  • Visuwell Reagin, a non-treponemal enzyme-linked immunosorbent assay for the serodiagnosis of syphilis.

    abstract::A urease-based enzyme-linked immunosorbent assay (ELISA) has been developed for the detection of reagin antibodies in serum. Visuwell Reagin (ADI Diagnostics Inc., Rexdale, Ontario, Canada) is a non-treponemal screening test for the serodiagnosis of syphilis which has the benefits of large batch testing, automatabilit...

    journal_title:Journal of clinical microbiology

    pub_type: 杂志文章

    doi:10.1128/JCM.27.10.2300-2304.1989

    authors: White TJ,Fuller SA

    更新日期:1989-10-01 00:00:00

  • Reproducibility of linear array for human papillomavirus genotyping.

    abstract::We conducted a Linear Array test/retest analysis using cytologic specimens from 198 women. A total of 67.2% of samples had the same human papillomavirus (HPV) types detected in both tests (type-specific positive agreement was 83.3% overall [Kappa = 0.9] and 86.8% for carcinogenic types [Kappa = 0.92]). Discordance was...

    journal_title:Journal of clinical microbiology

    pub_type: 杂志文章

    doi:10.1128/JCM.03036-12

    authors: Koshiol J,Dunn ST,Walker JL,Zuna RE,Schiffman M,Sherman ME,Gold MA,Allen RA,Zhang R,Wang SS,Wentzensen N

    更新日期:2013-02-01 00:00:00

  • Genotypic characterization of ureaplasma serovars from clinical isolates by pulsed-field gel electrophoresis.

    abstract::Genetic relationships within ureaplasma serovars were investigated by pulsed-field gel electrophoresis (PFGE). One hundred thirteen Ureaplasma parvum isolates and 78 Ureaplasma urealyticum isolates were different from their ATCC serovar type strains and different within the same serovars. The organisms were geographic...

    journal_title:Journal of clinical microbiology

    pub_type: 杂志文章

    doi:10.1128/JCM.01235-11

    authors: Xiao L,Crabb DM,Moser SA,Duffy LB,Glass JI,Paralanov V,Waites KB

    更新日期:2011-09-01 00:00:00

  • Presumptive identification of Candida kefyr on levine formulation of eosin methylene blue agar.

    abstract::Three hundred thirty-one yeast and yeast-like isolates were cultivated on eosin methylene blue agar. While the sensitivity rate for Candida kefyr isolates producing a metallic green sheen was 81.8%, the high positive predictive value (100%) for yeast isolates with this phenotype belonging to C. kefyr suggests that the...

    journal_title:Journal of clinical microbiology

    pub_type: 杂志文章

    doi:10.1128/jcm.40.11.4281-4284.2002

    authors: Munson EL,Troy DR,Weber JK,Messer SA,Pfaller MA

    更新日期:2002-11-01 00:00:00

  • Spread of a Salmonella typhimurium clone resistant to expanded-spectrum cephalosporins in three European countries.

    abstract::Twelve Salmonella typhimurium strains resistant to broad-spectrum cephalosporins were isolated from cases of gastroenteritis during 1996 to 1998 in Russia, Hungary, and Greece. Resistance was due to the production of CTX-M-type extended-spectrum beta-lactamases encoded by similar 12-kb plasmids. By pulsed-field gel el...

    journal_title:Journal of clinical microbiology

    pub_type: 杂志文章

    doi:10.1128/JCM.37.11.3774-3777.1999

    authors: Tassios PT,Gazouli M,Tzelepi E,Milch H,Kozlova N,Sidorenko S,Legakis NJ,Tzouvelekis LS

    更新日期:1999-11-01 00:00:00

  • Coproduction of KPC-18 and VIM-1 Carbapenemases by Enterobacter cloacae: Implications for Newer β-Lactam-β-Lactamase Inhibitor Combinations.

    abstract::Enterobacter cloacae strain G6809 with reduced susceptibility to carbapenems was identified from a patient in a long-term acute care hospital in Kentucky. G6809 belonged to sequence type (ST) 88 and carried two carbapenemase genes, bla(KPC-18) and bla(VIM-1). Whole-genome sequencing localized bla(KPC-18) to the chromo...

    journal_title:Journal of clinical microbiology

    pub_type: 杂志文章

    doi:10.1128/JCM.02739-15

    authors: Thomson GK,Snyder JW,McElheny CL,Thomson KS,Doi Y

    更新日期:2016-03-01 00:00:00