Abstract：
:The polycation protamine sulfate was compared to polybrene, the usual agent employed, for its ability to increase the efficiency of retroviral infection. The murine retroviral vector SAX, which contains the neoR gene and the human adenosine deaminase (ADA) cDNA, was used as a marker of cell infection. SAX viral supernate was titered on NIH 3T3 cells in varying concentrations of polycation. The highest infection efficiency for protamine was seen at 5 micrograms/ml and was 7-fold greater than infections performed in the absence of polycation. Infection efficiency using protamine averaged 92% +/- 11 (SEM) of the highest efficiency obtained with polybrene. Total ADA activity attained when human-ADA deficient T cells were exposed to SAX supernate in the presence of protamine was 83% of that attained with polybrene. The infection rate of mouse bone marrow early progenitor cells (CFU-S) was similar with each polycation. In summary, for supernate infections, concentrations of 5-10 micrograms/ml of protamine provided essentially the same infection efficiency as polybrene with low toxicity on a range of cell types. Since protamine is approved for human use by the U.S. Food and Drug Administration it provides an effective alternative to polybrene when developing human gene therapy protocols.
journal_name
J Virol Methodsjournal_title
Journal of virological methodsauthors
Cornetta K,Anderson WFdoi
10.1016/0166-0934(89)90132-8subject
Has Abstractpub_date
1989-02-01 00:00:00pages
187-94issue
2eissn
0166-0934issn
1879-0984pii
0166-0934(89)90132-8journal_volume
23pub_type
杂志文章abstract：:A nanoparticle-based immunoassay was developed for the rapid and sensitive detection of avian influenza virus (AIV). In this method, AIV-specific pentabody (pVHH3B) was conjugated to magnetic nanoparticles (MNPs) and used to capture AIV. Gold nanoparticles (GNPs), labelled with the anti-AIV mouse monoclonal antibody 3...
journal_title：Journal of virological methods
pub_type： 杂志文章
doi：10.1016/j.jviromet.2010.07.024
更新日期：2010-11-01 00:00:00
abstract：:Human immunodeficiency virus type-1 (HIV-1) RNA viral load is an important biomarker to evaluate the therapeutic efficacy of antiretroviral drugs and to monitor disease progression in HIV-infected individuals. We compared HIV-1 RNA quantitation between two different kits, the NucliSens EasyQ HIV-1 v1.1 (EasyQ, bioMéri...
journal_title：Journal of virological methods
pub_type： 杂志文章
doi：10.1016/j.jviromet.2009.02.003
更新日期：2009-10-01 00:00:00
abstract：:Peach rosette mosaic disease was first described in the 1940s affecting peach and plum. It was later determined that peach rosette mosaic virus (PRMV) is the causal agent of the disease. PRMV, a member of the genus Nepovirus, infects several perennial crops including stone fruit, grape and blueberry as well as several...
journal_title：Journal of virological methods
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doi：10.1016/j.jviromet.2018.01.004
更新日期：2018-04-01 00:00:00
abstract：:The use of 0.1% aqueous solution of polylysine (poly-L-lysine) is proposed as a prior step to negative staining of viral or particle suspensions. Particles spread better on films precoated with polylysine than with other substances used for the same purpose. This applies particularly to samples from sucrose or CsCl gr...
journal_title：Journal of virological methods
pub_type： 杂志文章
doi：10.1016/0166-0934(85)90121-1
更新日期：1985-05-01 00:00:00
abstract：:Quantitative real-time PCR is being widely used in the identification of plasma donations that contain high levels of parvovirus B19, to ensure their exclusion from start pools used in the manufacture of plasma derived medicinal products. In this study, the primers and probe of one such published assay, are examined f...
journal_title：Journal of virological methods
pub_type： 杂志文章
doi：10.1016/j.jviromet.2006.09.002
更新日期：2007-01-01 00:00:00
abstract：:A simple, sensitive and specific colourimetric hybridisation method for the detection of HCMV DNA in clinical specimens is described. This method combines a PCR assay with a sensitive sandwich hybridisation assay. It relies on the use of a specific capture probe linked covalently to polystyrene microplates and a speci...
journal_title：Journal of virological methods
pub_type： 杂志文章
doi：10.1016/s0166-0934(99)00023-3
更新日期：1999-07-01 00:00:00
abstract：:The surface details of resin embedded viruses can be greatly enhanced by the use of uranyl acetate block staining. The virions are embedded in agar immediately after fixation and block stained with 3% uranyl acetate in methanol during dehydration. This technique allows those particles outside their host cells to show ...
journal_title：Journal of virological methods
pub_type： 杂志文章
doi：10.1016/0166-0934(84)90040-5
更新日期：1984-02-01 00:00:00
abstract：:Group A rotaviruses (RVs) are important pathogens that cause acute, dehydrating gastroenteritis in infants and young children. In this study, a multiplex real-time polymerase chain reaction protocol using primers and TaqMan(®) probes specific for viral VP4 and VP7 genes was evaluated. This assay offers simultaneous ge...
journal_title：Journal of virological methods
pub_type： 杂志文章
doi：10.1016/j.jviromet.2011.12.009
更新日期：2012-03-01 00:00:00
abstract：:The disruption of the viral coat of human immunodeficiency virus by Triton X-100, a nonionic detergent, is a time-dependent process which requires incubation times of 30 min or longer. Conditions for the production of a noninfectious sample from a viral pellet that can be used to measure reverse transcriptase activity...
journal_title：Journal of virological methods
pub_type： 杂志文章
doi：10.1016/s0166-0934(97)00169-9
更新日期：1998-01-01 00:00:00
abstract：:The species cowpox virus (CPXV), genus Orthopoxvirus (OPV), consists of isolates highly variable in their biological properties and their genotypes. A TaqMan PCR assay for the specific detection of CPXV DNA based on sequences of the ORF D11L has been developed recently. (Gavrilova et al., 2010; Shchelkunov et al., 201...
journal_title：Journal of virological methods
pub_type： 杂志文章
doi：10.1016/j.jviromet.2014.10.004
更新日期：2015-01-01 00:00:00
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journal_title：Journal of virological methods
pub_type： 杂志文章
doi：10.1016/0166-0934(88)90061-4
更新日期：1988-09-01 00:00:00
abstract：:A recombinant retroviral system was used for the analysis of early HIV breakthrough infection in the presence of antiviral drugs. The use of replication-defective HIV allowed a quantitative analysis of a single cycle of infection. This report characterizes this recombinant HIV system and demonstrates it's validity in ...
journal_title：Journal of virological methods
pub_type： 杂志文章
doi：10.1016/s0166-0934(97)00212-7
更新日期：1998-04-01 00:00:00
abstract：:Infection with high-risk types of human papillomavirus (HPV) is necessary for the development of cervical cancer. However, the majority of the HPV infections are efficiently cleared by the immune system and only a minority persist and induce the development of malignant lesions. Several studies provided evidence that ...
journal_title：Journal of virological methods
pub_type： 杂志文章
doi：10.1016/j.jviromet.2004.02.018
更新日期：2004-08-01 00:00:00
abstract：:Sabin type 3 polio vaccine virus is the most common cause of poliovaccine associated paralytic poliomyelitis. Vaccine associated paralytic poliomyelitis cases have been associated with Sabin type 3 revertants containing a single U to C substitution at bp 472 of Sabin type 3. A rapid method of identification of Sabin t...
journal_title：Journal of virological methods
pub_type： 杂志文章
doi：10.1016/s0166-0934(97)00114-6
更新日期：1997-11-01 00:00:00
abstract：:A transfer vector was constructed in which the neomycin resistance (neo) gene was under the control of a copy of Autographa californica nuclear polyhedrosis virus (AcMNPV) IE1 gene promoter at the p10 locus. After cotransfection of Spodoptera frugiperda (Sf9) cells with the transfer vector and infectious AcMNPV DNA, t...
journal_title：Journal of virological methods
pub_type： 杂志文章
doi：10.1016/0166-0934(96)02112-x
更新日期：1996-10-01 00:00:00
abstract：:TaqMan and SYBR Green quantitative PCR (qPCR) methods were developed as DNA-based approaches to reproducibly enumerate M13 and T7 phages from phage display selection experiments individually and simultaneously. The genome copies of M13 and T7 phages were quantified by TaqMan or SYBR Green qPCR referenced against M13 a...
journal_title：Journal of virological methods
pub_type： 杂志文章
doi：10.1016/j.jviromet.2017.11.012
更新日期：2018-02-01 00:00:00
abstract：:Arenaviruses merit significant attention both as causative agents of endemic hemorrhagic fevers and as model systems to study the immune response to acute and persistent viral infections. Development of highly sensitive quantitative screening methods to detect arenavirus is critical for early diagnosis of patients, to...
journal_title：Journal of virological methods
pub_type： 杂志文章
doi：10.1016/j.jviromet.2009.04.001
更新日期：2009-08-01 00:00:00
abstract：:A full glycoprotein E (gE) deletion was generated in genome of the Egyptian BoHV-1.1 Abu-Hammad strain. Integrity of the gE negative (gE(-)) mutant virus was proved by successful specific PCR amplifications of gB, gC, tk, gD, gI and gE genes along with definite immune reaction to polyclonal anti-BoHV-1 antibody in inf...
journal_title：Journal of virological methods
pub_type： 杂志文章
doi：10.1016/j.jviromet.2013.07.041
更新日期：2013-12-01 00:00:00
abstract：:Recently, the seroneutralization, hemagglutination inhibition, and the ELISA procedures were used to determine the presence of serum antibody to the pneumonia virus of mice in rat sera. This study was initiated to evaluate the reliability of these procedures to detect specific antibodies in our laboratory animal speci...
journal_title：Journal of virological methods
pub_type： 杂志文章
doi：10.1016/0166-0934(81)90004-5
更新日期：1981-09-01 00:00:00
abstract：:Viruses belonging to the Flaviviridae family are found and distributed in most of the tropical and sub-tropical regions of the world. The genus has more than 56 members, most of which cause clinical symptoms in humans. The clinical diagnosis of dengue requires laboratory confirmation because of the similarity of sympt...
journal_title：Journal of virological methods
pub_type： 杂志文章
doi：10.1016/j.jviromet.2012.08.006
更新日期：2012-12-01 00:00:00
abstract：:The clinical and epidemiologic management of the SARS-CoV-2 pandemic is critically dependent on molecular assays with short turn-around time. We validated the novel Xpert Xpress SARS-CoV-2 assay using a commercial nucleic acid testing (Roche Cobas 6800). We found an excellent concordance over a range of SARS-CoV-2 loa...
journal_title：Journal of virological methods
pub_type： 杂志文章
doi：10.1016/j.jviromet.2020.113925
更新日期：2020-10-01 00:00:00
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journal_title：Journal of virological methods
pub_type： 杂志文章
doi：10.1016/0166-0934(83)90074-5
更新日期：1983-02-01 00:00:00
abstract：:Healthcare workers (HCWs) are at significantly higher risk of exposure to influenza virus during seasonal epidemics and global pandemics. During the 2009 influenza pandemic, some healthcare organizations recommended that HCWs wear respiratory protection such as filtering facepiece respirators, while others indicated t...
journal_title：Journal of virological methods
pub_type： 杂志文章
doi：10.1016/j.jviromet.2018.05.009
更新日期：2018-10-01 00:00:00
abstract：:Hepatitis A virus (HAV) infection is the leading worldwide cause of acute viral hepatitis. An important aspect of viral control is rapid diagnosis. Epidemiological studies have linked hepatitis A outbreaks to the consumption of drinking water or soft fruits exposed to faecal contamination. Real-time reverse transcript...
journal_title：Journal of virological methods
pub_type： 杂志文章
doi：10.1016/j.jviromet.2010.02.017
更新日期：2010-06-01 00:00:00
abstract：:The emergence of novel and divergent HoBi-like pestivirus (HoBiPeV) strains in cattle in Asia recently has raised concerns with regard to their reliable and accurate diagnosis. Hence, the aim of this study was to evaluate currently available BVDV diagnostic tests and HoBiPeV-specific diagnostic tests in detection of g...
journal_title：Journal of virological methods
pub_type： 杂志文章
doi：10.1016/j.jviromet.2019.113707
更新日期：2019-10-01 00:00:00
abstract：:Coliphages are alternative fecal indicators that may be suitable surrogates for viral pathogens, but majority of standard detection methods utilize insufficient volumes for routine detection in environmental waters. We compared three somatic and F+ coliphage methods based on a paired measurement from 1 L samples colle...
journal_title：Journal of virological methods
pub_type： 杂志文章
doi：10.1016/j.jviromet.2018.08.007
更新日期：2018-11-01 00:00:00
abstract：:The development of rapid and simple gene amplification tests is required for detection of pathogens to prevent transmission of infectious diseases between animals or from animals to humans. An easy-to-use rapid gene amplification method that can directly detect RNA and DNA viruses in clinical samples was developed. Th...
journal_title：Journal of virological methods
pub_type： 杂志文章
doi：10.1016/j.jviromet.2014.01.019
更新日期：2014-06-01 00:00:00
abstract：:Cell-mediated cytotoxicity against cytomegalovirus (CMV)-infected fibroblasts (FS-4 cells) was investigated by a non-radioactive assay, and by DNA fragmentation ELISA and LDH release assay and the assays were compared to the standard chromium release assay. Fragmentation of DNA and LDH activity were detected in the su...
journal_title：Journal of virological methods
pub_type： 杂志文章
doi：10.1016/0166-0934(95)01954-5
更新日期：1996-01-01 00:00:00
abstract：:In this study, we aim to determine what effects prolonged storage and repeated freeze/thaw cycles have on the stability of influenza A(H1N1)pdm09 (influenza A/H1N1)RNA. Cloned influenza A/H1N1 RNA transcripts were serially diluted from 8.0-1.0 log10 copies/μl. RT-qPCR was used to measure RNA loss in transcripts stored...
journal_title：Journal of virological methods
pub_type： 杂志文章
doi：10.1016/j.jviromet.2017.05.018
更新日期：2017-09-01 00:00:00
abstract：:The role of environmental reservoirs in avian influenza virus (AIV) transmission has been investigated during AIV-associated outbreaks. To date, no method has been defined for detection of AIV from mud samples. A procedure using elution and polyethylene glycol (PEG) concentration steps was designed to detect AIV by RT...
journal_title：Journal of virological methods
pub_type： 杂志文章
doi：10.1016/j.jviromet.2011.10.013
更新日期：2012-01-01 00:00:00
