Abstract:
:Optimal conditions for demonstrating the presence of infectious human immunodeficiency virus in peripheral blood mononuclear cells (PMCs) from seropositive individuals involved cocultivation of infected cells with phytohemagglutinin-stimulated PMCs from seronegative donors in the presence of 2 micrograms of Polybrene per ml. The size of the culture vessel also influenced the results; smaller numbers of infected cells were detected under conditions of increased cell density. In addition, an increased normal donor/patient PMC ratio was helpful. The cocultivation approach permitted identification of human immunodeficiency virus in over 90% of seropositive individuals with different clinical conditions. Moreover, reconstruction experiments indicated that this method allows detection of one productively infected CD4+ cell in a population of over 10(6) PMCs.
journal_name
J Clin Microbioljournal_title
Journal of clinical microbiologyauthors
Castro BA,Weiss CD,Wiviott LD,Levy JAdoi
10.1128/JCM.26.11.2371-2376.1988subject
Has Abstractpub_date
1988-11-01 00:00:00pages
2371-6issue
11eissn
0095-1137issn
1098-660Xjournal_volume
26pub_type
杂志文章abstract::Blood was cultured in two vacuum bottles containing Columbia broth. Filtered air was admitted to one bottle (aerobic); the unvented bottle was considered anaerobic. Cultures were incubated at 35 C until growth occurred or for at least 7 days. Of 744 organisms isolated, 50% were isolated from both bottles, 30% from the...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:10.1128/JCM.1.2.154-156.1975
更新日期:1975-02-01 00:00:00
abstract::In a field trial conducted in cooperation with pediatricians in private practice, 198 nasopharyngeal swabs from children with suspected whooping cough were placed into charcoal-horse-blood transport medium with cephalexin (40 mg/liter). After preincubation at 36 degrees C for 1 to 2 days, the transport systems were ma...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:10.1128/JCM.26.6.1248-1249.1988
更新日期:1988-06-01 00:00:00
abstract::Humoral immune response to intestinal Rhodococcus (Corynebacterium) equi in horses was studied by enzyme-linked immunosorbent assay. Anti-R. equi immunoglobulin M (IgM), IgG, and IgA antibodies were demonstrated in the healthy horse population. Adult horse levels of anti-R. equi IgM and IgG antibodies were reached by ...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:10.1128/JCM.23.5.943-947.1986
更新日期:1986-05-01 00:00:00
abstract::A serotyping scheme for Enterobacter cloacae based on heat-stable somatic antigens is described. A total of 28 antisera were prepared in rabbits, and titers of agglutinins were high (greater than 640). Some cross-reactions were observed, and 11 sera required absorption before routine use. Of 300 clinical isolates from...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:10.1128/JCM.18.5.1079-1083.1983
更新日期:1983-11-01 00:00:00
abstract::Serogrouping of Bacteroides nodosus is based on antigenic differences in fimbriae of the different New Zealand prototype strains. Because of the time needed to isolate and grow pure cultures of B. nodosus and the difficulty in distinguishing between different serogroups because of cross-agglutination, a new DNA-based ...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:10.1128/JCM.28.11.2456-2461.1990
更新日期:1990-11-01 00:00:00
abstract::Malaria-specific rapid diagnostic tests (RDTs) targeting aldolase show highly variable sensitivities. We assessed diversity in Plasmodium falciparum and P. vivax aldolases by sequencing the coding genes from parasites of various origins. The results show that aldolases are highly conserved, indicating that antigenic d...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:10.1128/JCM.01611-06
更新日期:2006-12-01 00:00:00
abstract::The Vitek MS v2.0 matrix-assisted laser desorption ionization-time of flight mass spectrometry system accurately distinguished Streptococcus pneumoniae from nonpneumococcal S. mitis group species. Only 1 of 116 nonpneumococcal isolates (<1%) was misidentified as S. pneumoniae. None of 95 pneumococcal isolates was misi...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:10.1128/JCM.00824-13
更新日期:2013-09-01 00:00:00
abstract::The performance of three line blot assays (LBAs), the Linear Array HPV genotyping assay (LA) (Roche Diagnostics), INNO-LiPA HPV Genotyping Extra (LiPA) (Innogenetics), and the reverse hybridization assay (RH) (Qiagen), was evaluated using quantitated whole genomic human papillomavirus (HPV) plasmids (types 6, 11, 16, ...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:10.1128/JCM.06576-11
更新日期:2012-05-01 00:00:00
abstract::Helicobacter pylori virulence determinants have not previously been studied in detail in Latin Americans with H. pylori infections. We characterized the vacA (vacuolating cytotoxin gene A) and cagA (cytotoxin-associated gene A) types of more than 400 single-colony isolates from 20 patients in Mexico City. For 17 patie...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:10.1128/JCM.37.9.3001-3004.1999
更新日期:1999-09-01 00:00:00
abstract::Using blaZ PCR as the "gold standard," the sensitivities of CLSI penicillin zone edge and nitrocefin-based tests for β-lactamase production in Staphylococcus aureus were 64.5% and 35.5%, respectively, with specificity of 99.8% for both methods. In 2013, 13.5% of 3,083 S. aureus isolates from 31 U.S. centers were penic...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:10.1128/JCM.03109-15
更新日期:2016-03-01 00:00:00
abstract::Monoclonal antibodies (Mabs) specific for Haemophilus influenzae were generated to identify antigenic determinants shared among encapsulated H. influenzae clones. Sixteen MAbs reacted by Western immunoblot with a protein of an approximate molecular size of 40 kilodaltons corresponding to the P2 major outer membrane pr...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:10.1128/JCM.28.8.1720-1724.1990
更新日期:1990-08-01 00:00:00
abstract::In the face of concerns over an influenza pandemic, identification of virulent influenza A virus isolates must be obtained quickly for effective responses. Rapid subtype identification, however, is difficult even in well-equipped virology laboratories or is unobtainable in the field under more austere conditions. Here...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:10.1128/JCM.44.4.1209-1218.2006
更新日期:2006-04-01 00:00:00
abstract::Murine monoclonal antibodies (MAbs) were produced which were specific for Pasteurella haemolytica serotype 1 lipopolysaccharide (LPS). The MAbs also reacted with LPS present in a partially purified antigen derived from a saline extract of the organism. The epitope to which the MAbs were directed was a carbohydrate whi...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:10.1128/JCM.26.5.885-889.1988
更新日期:1988-05-01 00:00:00
abstract::A simple disk diffusion test was constructed for detection of IMP-1-type metallo-beta-lactamase-producing gram-negative bacteria. Two Kirby-Bauer disks containing ceftazidime (CAZ) and a filter disk containing a metallo-beta-lactamase inhibitor were used in this test. Several IMP-1 inhibitors such as thiol compounds i...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:
更新日期:2000-01-01 00:00:00
abstract::Ureaplasma parvum and Ureaplasma urealyticum are sexually transmitted, opportunistic pathogens of the human urogenital tract. There are 14 known serovars distributed between the two species. For decades, it has been postulated based upon limited data that virulence is related to serotype specificity. The results were ...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:10.1128/JCM.00637-11
更新日期:2011-08-01 00:00:00
abstract::Herpes infections are among the most common sexually transmitted diseases and are the most common cause of genital ulcer disease in the United States. This study addresses the changing distribution of herpes simplex virus type 1 (HSV-1) and HSV-2 in patients presenting for evaluation of herpetic infections. Viral cult...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:10.1128/jcm.39.9.3321-3325.2001
更新日期:2001-09-01 00:00:00
abstract::A DNA microarray platform, based on the nucleotide sequences of the internal transcribed spacer regions (ITS1 and ITS2) of the rRNA gene, was developed to identify 32 fungal pathogens at the species level. The probe sequences were spotted onto polycarbonate slides with a mini-microarray printer, and after the hybridiz...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:10.1128/JCM.01908-17
更新日期:2018-04-25 00:00:00
abstract::The incidence of enterotoxigenic Escherichia coli (ETEC) was investigated in 95 E. coli strains isolated from 48 infants with diarrhea in Santiago, Chile. By using standard biological assays and DNA-DNA hybridization procedures, ETEC was found in 31.2% of the cases: 14 strains produced heat-stable enterotoxin (ST) onl...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:10.1128/JCM.22.4.576-581.1985
更新日期:1985-10-01 00:00:00
abstract::Thirteen different serogroup strains of Yersinia pseudotuberculosis and two strains of Yersinia enterocolitica O:3 were examined for the presence of plasmids and plasmid-mediated properties, calcium growth dependency, and autoagglutination. Two Y. enterocolitica strains and eight serogroup (IA, IIA, IIC, III, IVA, VB,...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:10.1128/JCM.21.4.662-665.1985
更新日期:1985-04-01 00:00:00
abstract::A simple and reliable technique was developed for differentiating Helicobacter pylori strains by restriction fragment length polymorphism analysis of polymerase chain reaction (PCR)-amplified DNAs. Oligonucleotide primer pairs developed to the urease, 48-kDa stress protein (htrA), and 26-kDa antigen-encoding genes wer...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:10.1128/JCM.31.6.1420-1425.1993
更新日期:1993-06-01 00:00:00
abstract::When Shiga toxin-producing Escherichia coli (STEC) strains emerged as agents of human disease, two types of toxin were identified: Shiga toxin type 1 (Stx1) (almost identical to Shiga toxin produced by Shigella dysenteriae type 1) and the immunologically distinct type 2 (Stx2). Subsequently, numerous STEC strains have...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章,多中心研究
doi:10.1128/JCM.00860-12
更新日期:2012-09-01 00:00:00
abstract::A new serological assay, the recombinant flow cytometric immunofluorescence assay (r-FIFA), was developed for the early detection of human immunodeficiency virus type 1 (HIV-1) antibodies by using recombinant insoluble forms of HIV-1 Gag-p45, Gag-gp41 chimeric protein, gp160, Po197 polyprotein as antigens and autologo...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:10.1128/JCM.34.6.1412-1419.1996
更新日期:1996-06-01 00:00:00
abstract::The relationship of coagulase-negative staphylococcal slime production and adherence with the development and outcome of bloodstream infections in two Finnish hospitals was evaluated. Analysis of 64 strains from 62 adult septicemias disclosed 34 (53%) adherent slime producers. In comparison, only 142 (29%) of 489 sing...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:10.1128/JCM.28.12.2779-2785.1990
更新日期:1990-12-01 00:00:00
abstract::The increased prevalence and the severity of oropharyngeal candidiasis in human immunodeficiency virus (HIV)-positive patients are attributed exclusively to the virus-induced immune deficiency of the host. The present study was aimed at answering the question of whether Candida albicans secretory proteinase, a putativ...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:10.1128/JCM.33.10.2543-2549.1995
更新日期:1995-10-01 00:00:00
abstract::We report a fatal case of acute lower respiratory tract disease with human rhinovirus C (HRV-C) as the unique cause in a 19-month-old girl with a history of repeated episodes of bronchiolitis. HRV-C type 8 nucleic acids were observed in respiratory, stool, and cerebrospinal fluid samples, and infectious virions were i...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:10.1128/JCM.03484-14
更新日期:2015-05-01 00:00:00
abstract::It has been difficult to obtain pure Pneumocystis carinii antigen either from cultures or from infected lungs for use in producing a specific antibody against P. carinii. This report describes an approach toward producing a monoclonal antibody that bypasses the antigen purification steps. P. carinii infection was deve...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:10.1128/JCM.23.3.505-508.1986
更新日期:1986-03-01 00:00:00
abstract::Staphylococcus aureus ST45 is a major global MRSA lineage with huge strain diversity and a high clinical impact. It is one of the most prevalent carrier lineages but also frequently causes severe invasive disease, such as bacteremia. Little is known about its evolutionary history. In this study, we used whole-genome s...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:10.1128/JCM.02198-20
更新日期:2020-12-17 00:00:00
abstract::Streptococcus uberis and Streptococcus parauberis reference strains and isolates obtained from routine diagnostics were investigated by PCR with oligonucleotide primers designed according to species-specific parts of the 16S rRNA gene, the 23S rRNA gene, and the 16S-23S rRNA intergenic spacer region of both species. A...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:10.1128/JCM.39.4.1618-1621.2001
更新日期:2001-04-01 00:00:00
abstract::We describe the first case of gastritis in a male Australian sea lion (Neophoca cinerea) in which members of the family Helicobacteraceae, particularly the genus Wolinella, were detected. The sea lion exhibited clinical signs of gastrointestinal disease, including abdominal pain, lack of appetite, and lethargy. Examin...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:10.1128/JCM.42.8.3505-3512.2004
更新日期:2004-08-01 00:00:00
abstract::Of 121 AIDS patients, 12 (10%) had Toxoplasma gondii DNA detected by competitive PCR in their bronchoalveolar lavage samples. Quantitation of the PCR results showed a correlation between the parasite burden and the serum lactic dehydrogenase titer. Quantitative competitive PCR could be useful to assess the diagnosis a...
journal_title:Journal of clinical microbiology
pub_type: 临床试验,杂志文章
doi:10.1128/JCM.33.6.1662-1664.1995
更新日期:1995-06-01 00:00:00