Abstract:
:Antibody responses of 85 patients to human immunodeficiency virus type 1 antigens were quantitated by densitometric analysis of Western blot (immunoblot) assays. All patients had been classified into the following three clinical categories: asymptomatic (ASY), acquired immunodeficiency syndrome (AIDS)-related complex (ARC), or AIDS. Fifty of the patients were monitored for 6 to 29 months. The gp41/p24 antibody ratio was examined in three studies. In the first study, initial specimens from each patient were analyzed. The mean gp41/p24 antibody ratios were 1.5 (ASY), 3.2 (ARC), and 5.4 (AIDS). Of ASY patients, 79% had antibody ratios of less than 2.0. In contrast, 72% of patients with AIDS had ratios of greater than or equal to 2.0. In the second study, serially obtained specimens from ASY, ARC, and AIDS patients were analyzed. These patients were further grouped according to progression of their clinical condition. Of ASY patients whose clinical condition progressed to ARC, 80% consistently had ratios of greater than or equal to 2.0. Of ARC patients whose clinical condition progressed to AIDS, 71% consistently had ratios of greater than or equal to 2.0. Of AIDS patients who died during the study, 100% consistently had ratios of greater than or equal to 2.0. No patients were treated with azidothymidine during the first two studies. In the third study, AIDS patients were monitored before and during treatment with azidothymidine. During treatment, ratios stabilized or improved transiently in five of seven patients. In these three studies, a gp41/p24 antibody ratio of less than 2.0 correlated with a benign clinical state and a ratio of greater than or equal to 2.0 correlated with AIDS or progression to AIDS.
journal_name
J Clin Microbioljournal_title
Journal of clinical microbiologyauthors
Schmidt G,Amiraian K,Frey H,Wethers J,Stevens RW,Berns DSdoi
10.1128/JCM.27.5.843-848.1989subject
Has Abstractpub_date
1989-05-01 00:00:00pages
843-8issue
5eissn
0095-1137issn
1098-660Xjournal_volume
27pub_type
杂志文章abstract::The contamination of semiclosed disposable circuits of Healthdyne and Bourns ventilators was studied in a newborn intensive care unit over a 2-year period. A total of 379 fluid samples was obtained from inspiratory and expiratory tubing condensates and traps and from thermal humidifier columns fed with prefilled conta...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:10.1128/JCM.23.2.322-328.1986
更新日期:1986-02-01 00:00:00
abstract::A new molecular assay, based on a rapid DNA extraction protocol, PCR, and hybridization to a specific probe in a nonradioactive microwell plate format was used to detect Mycoplasma pneumoniae in bronchoalveolar fluid specimens. The sensitivity of the assay was determined to be 10 to 100 organisms with M. pneumoniae re...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:10.1128/JCM.35.6.1592-1594.1997
更新日期:1997-06-01 00:00:00
abstract::Seven rotavirus strains dually reactive to serotype G1- and G2-specific monoclonal antibodies (MAbs) from hospitalized children with rotavirus diarrhea were culture adapted. Six strains were neutralized with G1 antiserum to a higher titer than that of G2, and one was neutralized with G1 and G2 antisera to equal titers...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:10.1128/jcm.41.11.5267-5269.2003
更新日期:2003-11-01 00:00:00
abstract::In 1997 and 1998, H3N2 influenza A viruses emerged among pigs in North America. Genetic analyses of the H3N2 isolates demonstrated that they had distinctly different genotypes. The most commonly isolated viruses in the United States have a triple-reassortant genotype, with the hemagglutinin, neuraminidase, and PB1 pol...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:10.1128/jcm.41.5.1936-1941.2003
更新日期:2003-05-01 00:00:00
abstract::In a multicenter study, the consistency of international units expressed by five commercially available rubella virus immunoglobulin G kits was evaluated. The linearity and within-run and between-run precision were determined for each kit. All kits demonstrated good linearity and had within-run and between-run precisi...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:10.1128/JCM.30.3.633-641.1992
更新日期:1992-03-01 00:00:00
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
更新日期:2002-11-01 00:00:00
abstract::BBL CHROMagar VanRE (CVRE) was compared with bile esculin azide agar plus vancomycin to screen for vancomycin-resistant enterococcus (VRE) colonization. CVRE distinguishes Enterococcus faecalis (green colonies) from Enterococcus faecium (mauve colonies) on the basis of chromogenic substrate use. CVRE sensitivity and s...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:10.1128/JCM.02011-09
更新日期:2010-03-01 00:00:00
abstract::A monoclonal antibody specific for the gI glycoprotein of virulent pseudorabies virus was produced and used to affinity purify gI glycoprotein. The purified gI was used in an enzyme-linked immunosorbent assay (ELISA) that identified and differentiated field virus-exposed animals from animals vaccinated with gI-deleted...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:10.1128/JCM.27.10.2208-2213.1989
更新日期:1989-10-01 00:00:00
abstract::We prospectively studied 156 patients with a diagnosis of community-acquired pneumonia requiring admission. Several respiratory specimens were obtained for the detection of Chlamydia pneumoniae by cell culture and PCR. Three serum samples were obtained from each patient. Serological diagnosis of a C. pneumoniae infect...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:10.1128/JCM.36.8.2301-2307.1998
更新日期:1998-08-01 00:00:00
abstract::Microfiltration has become a popular procedure for the concentration and enumeration of bacteria. We developed a rapid and sensitive method for the differentiation of gram-positive and gram-negative bacteria, utilizing a polycarbonate membrane filter, crystal violet, iodine, 95% ethanol, and 6% carbol fuchsin, that ca...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:10.1128/JCM.26.7.1378-1382.1988
更新日期:1988-07-01 00:00:00
abstract::Lyme disease prevails as the most commonly transmitted tick-borne infection in the United States, and serologic evaluation for antibodies to Borrelia burgdorferi remains the recommended modality for diagnosis. This review presents a brief historical perspective on the evolution of serologic assays for Lyme disease and...
journal_title:Journal of clinical microbiology
pub_type: 历史文章,杂志文章,评审
doi:10.1128/JCM.03394-15
更新日期:2016-05-01 00:00:00
abstract::A 128-member specimen pooling scheme for acute HIV infection (AHI) detection was evaluated using 21 AHI specimens (range, 1,520 to 500,000 copies/ml) previously identified by RNA testing of 16-member plasma pools. HIV-1 RNA was detectable in 128-member pools for all 21 specimens; however, one pool created from a speci...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:10.1128/JCM.00650-11
更新日期:2011-10-01 00:00:00
abstract::We cloned and characterized a phosphatidylcholine-hydrolyzing phospholipase C (PC-PLC) gene from Burkholderia pseudomallei. DNA sequence analysis of the gene indicated an open reading frame coding for 700 amino acids with a 34-amino-acid signal peptide. When cleaved, this yields a secreted 73-kDa mature protein. The d...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:10.1128/JCM.37.11.3742-3745.1999
更新日期:1999-11-01 00:00:00
abstract::Many bacterial typing methods are specific for one species only, time-consuming, or poorly reproducible. DiversiLab (DL; bioMérieux) potentially overcomes these limitations. In this study, we evaluated the DL system for the identification of hospital outbreaks of a number bacterial species. Appropriately typed clinica...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:10.1128/JCM.01191-10
更新日期:2010-11-01 00:00:00
abstract::An enzyme-linked immunosorbent assay for the detection and quantitation of human immunoglobulin M (IgM), IgG, and IgA antibodies against Yersinia enterocolitica is described. Formalinized or heat-treated bacteria were adsorbed onto specially designed microcuvettes, and antibodies were allowed to attach to the antigen-...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:
更新日期:1979-03-01 00:00:00
abstract::The microbiological and molecular characteristics of the rickettsiae isolated from humans with Queensland tick typhus (QTT) caused by Rickettsia australis and the recently described Flinders Island spotted fever (FISF) were compared. Clinically and serologically, the diseases are similar. Cell culture reveals differen...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:10.1128/JCM.30.11.2896-2902.1992
更新日期:1992-11-01 00:00:00
abstract::The present report describes an analysis of two virulence genes of Helicobacter pylori. Parts of the cagA gene, as well as parts from the signal (s) and middle (m) regions of the mosaic vacA gene, were amplified with biotin-labelled PCR primers and the products were subsequently analyzed by a single-step reverse hybri...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:10.1128/JCM.36.5.1271-1276.1998
更新日期:1998-05-01 00:00:00
abstract::The PathoTec Rapid I-D System for identifying Enterobacteriaceae was evaluated with 471 cultures. In 4,910 individual test comparisons, 95.5% of the results agreed, with results of only two test strips, those for esculin hydrolysis and urease production, agreeing with conventional tests in less than 94% of the trials....
journal_title:Journal of clinical microbiology
pub_type: 临床试验,杂志文章
doi:10.1128/JCM.1.4.359-362.1975
更新日期:1975-04-01 00:00:00
abstract::A highly sensitive second-generation hepatitis C virus (HCV) core antigen assay has recently been developed. We compared viral disappearance and first-phase kinetics between commercially available core antigen (Ag) assays, Lumipulse Ortho HCV Ag (Lumipulse-Ag), and a quantitative HCV RNA PCR assay, Cobas Amplicor HCV ...
journal_title:Journal of clinical microbiology
pub_type: 临床试验,杂志文章
doi:10.1128/JCM.43.1.186-191.2005
更新日期:2005-01-01 00:00:00
abstract::A newly developed enzyme immunoassay (EIA) was used to detect the presence of pneumococcal teichoic and lipoteichoic acids in cerebrospinal fluid (CSF) from patients with Streptococcus pneumoniae meningitis who were being treated with antibiotics. All initial CSF samples, which on culture grew S. pneumoniae, were posi...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:10.1128/JCM.36.8.2346-2348.1998
更新日期:1998-08-01 00:00:00
abstract::Acute and convalescent-phase sera obtained from 10 patients infected with a Japanese strain of spotted fever group (SFG) rickettsia were tested by the indirect immunoperoxidase test, the Weil-Felix test, an enzyme-linked immunosorbent assay (ELISA), and immunoblotting. By the Weil-Felix test, the reactivity of these s...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:10.1128/JCM.30.9.2441-2446.1992
更新日期:1992-09-01 00:00:00
abstract::The performance characteristics of the Gen-Probe Probe Competition Assay (PCA) used in conjunction with the Gen-Probe PACE 2 and 2C direct detection assays for Chlamydia trachomatis were examined. Data collected by five public health laboratories by using the Gen-Probe PACE 2 were pooled and analyzed. Of 25,081 endoce...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:10.1128/JCM.35.2.477-478.1997
更新日期:1997-02-01 00:00:00
abstract::We performed pulsed-field gel electrophoresis on Escherichia coli O157 isolates (n = 318) from 199 healthy animals in a longitudinal study carried out on nine farms. Investigation of the restriction types proved that at the farm level, the same clones can be detected on sampling occasions separated by as much as 17 mo...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:10.1128/JCM.43.2.898-902.2005
更新日期:2005-02-01 00:00:00
abstract::Infective endocarditis (IE) is a life-threatening infection of the heart endothelium and valves. Staphylococcus aureus is a predominant cause of severe IE and is frequently associated with infections in health care settings and device-related infections. Multilocus sequence typing (MLST), spa typing, and virulence gen...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:10.1128/JCM.00651-13
更新日期:2013-07-01 00:00:00
abstract::We report the molecular epidemiology of 27 clinical multidrug-resistant Staphylococcus epidermidis (MDRSE) isolates collected between 2003 and 2007 in an Australian teaching hospital. The dominant genotype (sequence type 2 [ST2]) accounted for 85% of the isolates tested and was indistinguishable from an MDRSE genotype...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:10.1128/JCM.06456-11
更新日期:2012-06-01 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 evaluated quantitative real-time PCR to establish the diagnosis of rotavirus gastroenteritis in a high-disease-burden population in Malawi using enzyme immunoassay as the gold standard diagnostic test. In 146 children with acute gastroenteritis and 65 asymptomatic children, we defined a cutoff point in the threshol...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:10.1128/JCM.00875-15
更新日期:2015-06-01 00:00:00
abstract::We compared a direct fluorescent-antibody stain (DFA) and an enzyme immunoassay (EIA) with a standard cell culture technique for the detection of Chlamydia trachomatis infection in women in an urban family practice setting. We also evaluated a DFA sample in a commercial laboratory to determine the interlaboratory reli...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:10.1128/JCM.28.7.1580-1585.1990
更新日期:1990-07-01 00:00:00
abstract::An inexpensive, rapid, and simple colorimetric test for detection of bacteriuria is described. This test does not require bacterial growth and has the marked advantage of being able to quantify bacteria, even when the organisms are present in the urine of bacteriuric patients who are being treated with antibiotics. Th...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:10.1128/JCM.14.3.342-346.1981
更新日期:1981-09-01 00:00:00
abstract::An aerobically incubated, agar-based medium was developed for amino acid decarboxylase testing of Enterobacteriaceae family members by replica-plating methods. Results with the new medium agreed 97 to 99% with the reference broth method of Moeller, and no false-positive reactions were encountered. ...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:10.1128/JCM.10.6.940-942.1979
更新日期:1979-12-01 00:00:00