Abstract：
:It remains unclear whether hepatitis B virus (HBV) replicates in extrahepatic tissues, and particularly in peripheral blood mononuclear cells (PBMCs), which may serve as a reservoir for the maintenance of infection. A real-time PCR assay for the quantitation of total and covalently closed circular (ccc) HBV DNA in serum and in PBMCs was developed. This assay was highly sensitive (detection limit: 27 IU/mL), linear over a wide range (9 log10), and was displayed high inter- and intra-assay reproducibility for the quantitation of total DNA. Genotypes A to E were detected and the results were consistent with those obtained with the COBAS Amplicor HBV Monitor Test. The specificity of the methodology was increased by prior treatment with an enzyme that digests relaxed circular DNA, and the elimination of background signals from virus adsorbed to the surface of PBMCs. HBV DNA was detected in the serum and PBMCs of 12 HBsAg-positive patients, with less than 1% in the cccDNA form. In conclusion, the quantitation of total and ccc HBV DNA in PBMCs is potentially useful as a non-invasive marker, and may help to increase our knowledge of the natural history of hepatitis B.
journal_name
J Virol Methodsjournal_title
Journal of virological methodsauthors
Mazet-Wagner AA,Baclet MC,Loustaud-Ratti V,Denis F,Alain Sdoi
10.1016/j.jviromet.2006.07.019subject
Has Abstractpub_date
2006-12-01 00:00:00pages
70-9issue
1-2eissn
0166-0934issn
1879-0984pii
S0166-0934(06)00275-8journal_volume
138pub_type
杂志文章abstract：:Procedures were developed for the screening and isolation of RNA viruses that vary from the consensus population by a single point mutation and are present in low abundance. We tested these procedures using a mixture of the vaccine donor line cold-adapted (ca) B/Ann Arbor/1/66 and its wild type (wt) progenitor at a ra...
journal_title：Journal of virological methods
pub_type： 杂志文章
doi：10.1016/0166-0934(93)90031-l
更新日期：1993-05-01 00:00:00
abstract：:Rapid diagnosis of herpes simplex encephalitis (HSE) can only be achieved by the polymerase chain reaction (PCR). In order to carry out PCR under routine conditions, it is of great importance to establish an easy DNA extraction protocol and especially a rapid and sensitive DNA detection method. In the present study, t...
journal_title：Journal of virological methods
pub_type： 杂志文章
doi：10.1016/0166-0934(94)90174-0
更新日期：1994-12-01 00:00:00
abstract：:Rice tungro disease (RTD) is a recurring disease affecting rice farming especially in the South and Southeast Asia. The disease is commonly diagnosed by visual observation of the symptoms on diseased plants in paddy fields and by polymerase chain reaction (PCR). However, visual observation is unreliable and PCR can be...
journal_title：Journal of virological methods
pub_type： 杂志文章
doi：10.1016/j.jviromet.2016.12.001
更新日期：2017-02-01 00:00:00
abstract：:A direct reverse transcription-polymerase chain reaction (RT-PCR) method for detecting the chrysanthemum stunt viroid (CSVd) and chrysanthemum chlorotic mottle viroid (CChMVd) to screen for a viroid-free chrysanthemum plant at a small plant size was established and named microtissue direct RT-PCR. A razor or syringe n...
journal_title：Journal of virological methods
pub_type： 杂志文章
doi：10.1016/j.jviromet.2005.07.001
更新日期：2006-01-01 00:00:00
abstract：:A new technique of alkaline phosphatase amplification in an ELISA (amplified ELISA) was used to increase the sensitivity of detection of barley yellow dwarf virus (BYDV) from oat plant sap and in individual vector aphids. Amplified ELISA differs from conventional direct double antibody sandwich ELISA (DAS-ELISA) in th...
journal_title：Journal of virological methods
pub_type： 杂志文章
doi：10.1016/0166-0934(87)90056-5
更新日期：1987-02-01 00:00:00
abstract：:Sendai virus (SeV) is strictly monitored in laboratory rodents. Currently, complete virions have been used as antigens in SeV serological tests. However, the complexity of SeV virion antigen limits the accuracy of the diagnostic method. In the current study, complete SeV virion antigen was separated on SDS-PAGE and an...
journal_title：Journal of virological methods
pub_type： 杂志文章
doi：10.1016/j.jviromet.2013.06.011
更新日期：2013-11-01 00:00:00
abstract：:Attenuated and pathogenic viral variants are often extremely similar viruses with drastically different replication potentials. Despite precise knowledge of viral residues responsible for poliovirus attenuation/neurovirulence, molecular mechanisms mediating these effects remain poorly understood. Data from numerous so...
journal_title：Journal of virological methods
pub_type： 杂志文章
doi：10.1016/s0166-0934(01)00319-6
更新日期：2001-07-01 00:00:00
abstract：:The increasing use of the baculovirus expression vector system (BEVS) has generated significant interest into techniques for quantifying baculovirus stocks. One method involves the use of quantitative real-time polymerase chain reaction (PCR). This study investigated simplifying baculovirus sample preparation for quan...
journal_title：Journal of virological methods
pub_type： 杂志文章
doi：10.1016/j.jviromet.2012.03.001
更新日期：2012-06-01 00:00:00
abstract：:Infectious bursal disease virus (IBDV) is an immunosuppressive disease of young chicken characterized by severe depletion of B-lymphocytes in the bursa of Fabricius. To provide antigen for diagnostic tests, its major structural protein VP2 was expressed in the yeast Saccharomyces cerevisiae. Electron microscopy of pur...
journal_title：Journal of virological methods
pub_type： 杂志文章
doi：10.1016/j.jviromet.2008.11.020
更新日期：2009-04-01 00:00:00
abstract：:Human cytomegalovirus (HCMV) genome manipulation has always been difficult. Recently, the introduction of full-length HCMV DNA into Escherichia coli as an artificial bacterial chromosome (BAC) clone has allowed reliable targeted mutagenesis. Here, we show the next generation of improvement in designing recombinant HCM...
journal_title：Journal of virological methods
pub_type： 杂志文章
doi：10.1016/j.jviromet.2004.06.009
更新日期：2004-11-01 00:00:00
abstract：:Four commercial test kits for parvovirus B19 IgM were evaluated by testing 491 sera assembled into 7 panels. The serum panels were designed to assess sensitivity and specificity of the commercial assays and to reflect the various clinical settings in which acute B19 infection forms part of the differential diagnosis. ...
journal_title：Journal of virological methods
pub_type： 杂志文章
doi：10.1016/0166-0934(95)00040-2
更新日期：1995-09-01 00:00:00
abstract：:A method for rapid and reliable detection of Tomato spotted wilt virus (TSWV) (Tospovirus, Bunyaviridae) in its vector Frankliniella occidentalis (Thysanoptera Thripidae) would be a useful tool for studying the epidemiology of this virus. A RT-PCR method developed for this purpose is reported. The method was tested on...
journal_title：Journal of virological methods
pub_type： 杂志文章
doi：10.1016/s0166-0934(03)00048-x
更新日期：2003-04-01 00:00:00
abstract：:Immunosorbent assays are commonly employed as diagnostic tests in human healthcare, veterinary medicine and bioterrorism prevention. These assays, however, often require long incubation times, limiting sample throughput. As an approach to overcome this weakness, this paper examines the use of rotating capture substrat...
journal_title：Journal of virological methods
pub_type： 杂志文章
doi：10.1016/j.jviromet.2006.08.011
更新日期：2006-12-01 00:00:00
abstract：:The development and evaluation of an antibody-capture ELISA for the detection of IgM antibodies to Sindbis (SIN) and West Nile (WN) viruses are described. Comparison of the ELISA results with those obtained by indirect immunofluorescence (IIF) antibody tests using both fluorescein and biotinylated anti-human IgM conju...
journal_title：Journal of virological methods
pub_type： 杂志文章
doi：10.1016/0166-0934(89)90060-8
更新日期：1989-09-01 00:00:00
abstract：:Conditions for using slot-blot nucleic acid hybridization to quantitatively detect dengue-2 virus using a radiolabelled cDNA probe, pVV17, were determined. As little as 11 plaque-forming units of virus were detected using a hybridization mixture without formamide and performing the test at 70 degrees C. While predomin...
journal_title：Journal of virological methods
pub_type： 杂志文章
doi：10.1016/0166-0934(87)90097-8
更新日期：1987-02-01 00:00:00
abstract：:HIV-1 integrase (HIV-1 IN), a well-validated antiviral drug target, catalyzes multistep reactions to incorporate viral DNA into the genome of the host cell; these include both a 3'-processing (3'P) reaction and a strand transfer reaction. These enzymatic activities can be measured in vitro with short DNA oligonucleoti...
journal_title：Journal of virological methods
pub_type： 杂志文章
doi：10.1016/j.jviromet.2012.05.003
更新日期：2012-09-01 00:00:00
abstract：:A simple method for evaluating the virucidal activity of water-soluble antiseptic and disinfectant products using poliovirus type 1 (Sabin strain) is described. Using a commercial concentrator, kinetic studies of four products were carried out. It was shown that 2% glutaraldehyde and 5% povidone iodine are rapidly vir...
journal_title：Journal of virological methods
pub_type： 杂志文章
doi：10.1016/0166-0934(84)90052-1
更新日期：1984-12-01 00:00:00
abstract：:Japanese encephalitis (JE) is caused by the Japanese encephalitis virus (JEV). It is a major public health problem in Asia. JEV infects swine which results in fatal encephalitis, abortion and stillbirth in pregnant sow, and hypospermia in boars. Swine is a viral amplifier, and thus plays a critical role in JEV transmi...
journal_title：Journal of virological methods
pub_type： 杂志文章
doi：10.1016/j.jviromet.2010.04.015
更新日期：2010-09-01 00:00:00
abstract：:Hepatitis D virus (HDV) is a defective virus which requires hepatitis B virus (HBV) surface antigen (HBsAg) for its assembly. Hepatitis B infected individuals co-infected or superinfected with HDV often present with more severe hepatitis, progress faster to liver disease, and have a higher mortality rate than individu...
journal_title：Journal of virological methods
pub_type： 杂志文章
doi：10.1016/j.jviromet.2013.07.033
更新日期：2013-11-01 00:00:00
abstract：:Newcastle disease virus (NDV), also designated avian paramyxovirus type 1 (APMV-1), is a serious pathogen of poultry, causing highly contagious Newcastle disease (ND), with high morbidity or mortality, depending on the strain. Accordingly, rapid and reliable detection of APMV-1 and differentiation between vaccine and ...
journal_title：Journal of virological methods
pub_type： 杂志文章
doi：10.1016/j.jviromet.2010.02.012
更新日期：2010-06-01 00:00:00
abstract：:In light of the advances in HCV therapy, simplification of diagnosis confirmation, pre- treatment diagnostic workup and treatment monitoring is required to ensure broad access to interferon-free therapies. HCV core antigen (HCV cAg) testing is rapid, giving results in approximately 60min, and less expensive than HCV R...
journal_title：Journal of virological methods
pub_type： 临床试验,杂志文章
doi：10.1016/j.jviromet.2017.03.002
更新日期：2017-07-01 00:00:00
abstract：:Recombinant plasmids carrying 199 base pairs (bp) inserts from the non coding region (nucleotides (nt) 6-204) of the TT virus (TTV) genome were used to standardize an heteroduplex mobility assay able to detect mixed infections of a single individual with several TTV isolates. In this simplified heteroduplex mobility a...
journal_title：Journal of virological methods
pub_type： 杂志文章
doi：10.1016/s0166-0934(01)00425-6
更新日期：2002-03-01 00:00:00
abstract：:Dried blood spots (DBS) expedite the collection, storage and shipping of blood samples, thereby facilitating large-scale serologic studies. We evaluated the sensitivity of anti-HCV IgG testing and HCV-RNA quantitation using freshly prepared and stored DBS derived from HCV-infected patients. Protocols for elution were ...
journal_title：Journal of virological methods
pub_type： 杂志文章
doi：10.1016/j.jviromet.2014.10.018
更新日期：2015-02-01 00:00:00
abstract：:Lymphocyte proliferative responses were evaluated in mucosal (mesenteric lymph nodes) and systemic (spleen and blood) lymphoid tissues of conventional piglets inoculated with the virulent or attenuated isolates of porcine epidemic diarrhoea virus (PEDV) strain CV-777 and challenged 21 days later with the virulent isol...
journal_title：Journal of virological methods
pub_type： 杂志文章
doi：10.1016/s0166-0934(02)00063-0
更新日期：2002-08-01 00:00:00
abstract：:Wild birds have been implicated in the spread of highly pathogenic avian influenza (HPAIV) of the H5N1 subtype, prompting surveillance along migratory flyways. Sampling of wild birds is often conducted in remote regions, but results are often delayed because of limited local analytical capabilities, difficulties with ...
journal_title：Journal of virological methods
pub_type： 杂志文章
doi：10.1016/j.jviromet.2010.02.029
更新日期：2010-06-01 00:00:00
abstract：:The recent emergence of novel viruses requires reliable methodology for their identification and confirmation both on a cellular and molecular level. Mass spectrometry offers a suitable approach for the identification and characterisation of viral proteins and its application is demonstrated in this study. Menangle vi...
journal_title：Journal of virological methods
pub_type： 杂志文章
doi：10.1016/s0166-0934(01)00441-4
更新日期：2002-04-01 00:00:00
abstract：:Tomato yellow leaf curl Sardinia virus (TYLCSV) (Geminiviridae) is an important pathogen severely affecting tomato production in the Mediterranean basin. Although diagnostic protocols are available for its detection in plants and its vector Bemisia tabaci (Gennadius), suitable tools for estimating and comparing viral ...
journal_title：Journal of virological methods
pub_type： 杂志文章
doi：10.1016/j.jviromet.2007.09.015
更新日期：2008-02-01 00:00:00
abstract：:Automated, high-throughput detection methods for single-nucleotide polymorphisms have been applied to the routine genotyping of genetic polymorphisms influencing drug metabolism. Melting curve analysis with LCGreen was introduced recently as one such technique which can be performed rapidly and easily. This technique ...
journal_title：Journal of virological methods
pub_type： 杂志文章
doi：10.1016/j.jviromet.2007.12.002
更新日期：2008-03-01 00:00:00
abstract：:The use of adenovirus type 35 (Ad35) as a vector in vaccine and gene therapy studies is promising due to its broad cell tropism and low seroprevalence in humans. However, to date, a simple and effective system for producing recombinant Ad35 (rAd35) has not been well developed. This report describes a two-plasmid Ad35-...
journal_title：Journal of virological methods
pub_type： 杂志文章
doi：10.1016/j.jviromet.2011.06.016
更新日期：2011-10-01 00:00:00
abstract：:The GPRIME (Group PRIMEr design) programs examine aligned sets of gene sequences to discover homologous regions to be targeted in diagnostic tests. The core program moves a 'window' over the aligned sequences and calculates, at each window position, a 'redundancy value', namely the number of sequences that would repre...
journal_title：Journal of virological methods
pub_type： 杂志文章
doi：10.1016/s0166-0934(98)00070-6
更新日期：1998-09-01 00:00:00
