Abstract:
:Growth curves of the yeast form of Paracoccidioides brasiliensis B-339 based on total and viable cell counts were determined. Crude culture filtrate antigens were obtained after 7, 10, 15, 20, 25, and 30 days of incubation. Different patterns of proteins were obtained by affinity chromatography on Sepharose 4B-immunoglobulin G complex made with immunoglobulin G from patients with paracoccidioidomycosis, with subsequent analyses by sodium dodecyl sulfate-polyacrylamide gel electrophoresis and scanning densitometry. Three major proteins were excreted during the time course of a 30-day culture: a doublet at 20 to 21 kilodaltons (kDa) and molecules of 43 and 52 kDa. The 43-kDa antigen was present throughout the growth period, and its level reached a peak on days 15 to 20 and then decreased considerably toward day 30. The antigenic preparations collected on days 7, 10, 15, and 20 gave better reactions in immunodiffusion tests than those collected on days 25 and 30. The 7-day exoantigen gave a sensitivity of 97.1% and specificity of 100% on immunodiffusion. The main line of precipitation had a very high intensity, showing a total identity with that of a previously purified glycoprotein of 43 kDa. A 7-day crude exoantigen displayed a high level of sensitivity and specificity, being reproducible from batch to batch and retaining its activity for years when kept lyophilized. A protocol is recommended for the production of a stable diagnostic antigen to be used in immunodiffusion tests for paracoccidioidomycosis.
journal_name
J Clin Microbioljournal_title
Journal of clinical microbiologyauthors
De Camargo Z,Unterkircher C,Campoy SP,Travassos LRdoi
10.1128/JCM.26.10.2147-2151.1988subject
Has Abstractpub_date
1988-10-01 00:00:00pages
2147-51issue
10eissn
0095-1137issn
1098-660Xjournal_volume
26pub_type
杂志文章abstract::Five strains of an unknown, multidrug-resistant coryneform, gram-positive rod were isolated from blood, bronchial aspirate, and abscess specimens. Four of the five strains isolated were highly resistant to antimicrobial agents, including beta-lactams, aminoglycosides, macrolides, quinolones, and tetracyclines, except ...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:10.1128/JCM.43.8.3713-3717.2005
更新日期:2005-08-01 00:00:00
abstract::Three hundred sixty Enterobacteriaceae and nonfermenting gram-negative bacilli, isolated during one week in May 2004 at five hospitals in Amsterdam, The Netherlands, were evaluated for the presence of extended-spectrum beta-lactamases (ESBLs). A prevalence of 7.8% was found, in contrast to the 1% observed in 1997. CTX...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:10.1128/JCM.01112-06
更新日期:2006-08-01 00:00:00
abstract::A washing procedure that removed maximum numbers of contaminating microorganisms from whole surgical gloves was developed. Washing, coupled with membrane filtration, proved to be a simple and effective method for bioburden determinations on whole gloves. ...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:
更新日期:1978-05-01 00:00:00
abstract::Serotyping of Chlamydia trachomatis strains usually requires three to six serial passages in shell vials to attain sufficient antigen for typing procedures. To circumvent this problem, we developed a rapid low-passage method for serotyping of C. trachomatis clinical isolates. Isolates with an inclusion count of greate...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:10.1128/JCM.29.7.1333-1338.1991
更新日期:1991-07-01 00:00:00
abstract::We isolated and characterized a Vibrio cholerae O139 Bengal-specific DNA region by arbitrary PCR. The fragment contains open reading frames encoding two potential glycosyltransferases possibly involved in capsular polysaccharide or lipopolysaccharide biosynthesis. In order to evaluate the possibility that this region ...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:10.1128/JCM.34.12.2904-2908.1996
更新日期:1996-12-01 00:00:00
abstract::An estimated 41,200 people were newly infected with hepatitis C virus (HCV) in 2016 in the United States. Screening tests for antibodies to HCV may generate up to 32% false positivity in low-risk populations. Current Centers for Disease Control and Prevention (CDC) screening recommendations do not require confirmatory...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:10.1128/JCM.01567-18
更新日期:2019-02-27 00:00:00
abstract::The AutoMicrobic system (AMS) is capable of identifying most Enterobacteriaceae within 8 h and many glucose-nonfermenting, gram-negative bacilli after 13 h of incubation. Early preliminary results can be readily obtained from the computer as the tests incubate. Data with 1,023 bacterial isolates were reviewed to deter...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:10.1128/JCM.16.2.257-265.1982
更新日期:1982-08-01 00:00:00
abstract::Three human rotavirus (HRV) VP4 serotypes and one subtype have been described on the basis of a fourfold or an eightfold-or-greater difference in neutralization titer when tested with hyperimmune antisera to recombinant VP4 or VP8* (serotypes P1A, P1B, P2, and P3). To start to analyze the antigenic basis underlying se...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:10.1128/JCM.31.3.622-628.1993
更新日期:1993-03-01 00:00:00
abstract::We compared 75 nontypeable (NT) Haemophilus influenzae isolates by pulsed-field gel electrophoresis (PFGE), enterobacterial repetitive intergenic consensus (ERIC)-PCR, and automated ribotyping. PFGE was the most discriminatory of the techniques. ERIC-PCR provides a useful screen but should not replace other techniques...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:10.1128/jcm.40.2.660-662.2002
更新日期:2002-02-01 00:00:00
abstract::Helicobacter pylori strains display remarkable genetic diversity, and the presence of strains bearing the toxigenic vacA s1 allele, a complete cag pathogenicity island (PAI), cagA alleles containing multiple EPIYA phosphorylation sites, and expressing the BabA adhesin correlates with development of gastroduodenal dise...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:10.1128/JCM.00273-09
更新日期:2009-06-01 00:00:00
abstract::Reagent-impregnated filter paper replica methods are described which can be used to detect all penicillinase (beta-lactamase)-producing Neisseria gonorrhoeae (PPNG) colonies in an entire population of Neisseria gonorrhoeae growing on primary isolation plates. ...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:10.1128/JCM.17.3.545-547.1983
更新日期:1983-03-01 00:00:00
abstract::Noroviruses are the leading cause of outbreaks of gastroenteritis in the world. At present, norovirus genogroup II, genotype 4 (GII/4), strains are the most prevalent in many countries. In this study we investigated 55 outbreaks and 35 sporadic cases of norovirus-associated gastroenteritis in food handlers in food-cat...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:10.1128/JCM.01516-07
更新日期:2007-12-01 00:00:00
abstract::We prospectively evaluated a new PCR-enzyme-linked immunosorbent assay kit (Onychodiag; BioAdvance, France) for the diagnosis of dermatophytic onychomycosis by testing nail samples from 438 patients with suspected onychomycosis and from 108 healthy controls in three independent laboratories. In two laboratories, sampl...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章,多中心研究
doi:10.1128/JCM.01418-06
更新日期:2007-04-01 00:00:00
abstract::The herpes simplex virus type 1 (HSV-1) genome is a linear double-stranded DNA of 152 kpb. It is divided into long and short regions of unique sequences termed U(L) and U(S), respectively, and these are flanked by regions of inverted internal and terminal repeats. Microsatellites are short tandem repeats of 1- to 6-nu...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:10.1128/JCM.01565-08
更新日期:2009-03-01 00:00:00
abstract::Matrix-assisted laser desorption ionization-time of flight mass spectrometry (MALDI-TOF MS) and conventional standard methods were compared for time to pathogen identification and impact on clinical outcomes in peritoneal dialysis-related peritonitis patients. The MALDI-TOF MS method identified the causative microorga...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:10.1128/JCM.03378-15
更新日期:2016-05-01 00:00:00
abstract::A total of 375 Escherichia coli O157 strains were tested by colony hybridization with the eae probe from the central portion of the eaeA gene of the classical enteropathogenic E. coli strain E2348/69. They were also tested with a probe, eaeO157, from the C-terminal end of the eae gene homolog from a Vero cytotoxin (VT...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:10.1128/JCM.32.4.897-902.1994
更新日期:1994-04-01 00:00:00
abstract::Cryptococcus gattii emerged in 1999 in a distinct ecologic environment on Vancouver Island, Canada. Estimates of incubation period were derived from an analysis of travelers with discreet exposures to this region. Individual case incubation periods ranged from 2 to 11 months, with a median of 6 to 7 months. ...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:10.1128/JCM.44.5.1851-1852.2006
更新日期:2006-05-01 00:00:00
abstract::Conserved primers were used to PCR amplify 95% of the Helicobacter hepaticus 16S rRNA gene. Its sequence was determined and aligned to those of related bacteria, enabling the selection of primers to highly diverged regions of the 16S rRNA gene and an oligonucleotide probe for the development of a PCR-liquid hybridizat...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:10.1128/JCM.33.5.1344-1347.1995
更新日期:1995-05-01 00:00:00
abstract::Resistance to extended-spectrum β-lactam antibiotics has led to a greater reliance upon carbapenems, but the expression of carbapenemases threatens to limit the utility of these drugs. Current methods to detect carbapenemase activity are suboptimal, requiring prolonged incubations during which ineffective therapy may ...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:10.1128/JCM.00547-14
更新日期:2014-07-01 00:00:00
abstract::Cryptosporidium parvum and Cryptosporidium hominis isolates from human immunodeficiency virus-infected patients, cattle, and wild ruminants were characterized by PCR and DNA sequencing analysis of the 60-kDa glycoprotein gene. Seven alleles were identified, three corresponding to C. hominis and four corresponding to C...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:10.1128/jcm.41.6.2744-2747.2003
更新日期:2003-06-01 00:00:00
abstract::We isolated Shiga toxin-producing Escherichia coli O157:H7 strains resistant to third-generation cephalosporins. The resistant strains harbored blaCMY-2, a plasmid-mediated AmpC β-lactamase. Genotyping of isolates revealed the possible spread of this problematic bacterium. Results suggested the importance of the inves...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:10.1128/JCM.01263-15
更新日期:2015-09-01 00:00:00
abstract::Five serological assays were evaluated for the diagnosis of brucellosis in goats: the rose bengal test (RBT), complement fixation test (CFT), radial immunodiffusion (RID) with Brucella and Yersinia enterocolitica O:9 polysaccharides, counterimmunoelectrophoresis (CIEP) with cytosol, and enzyme-linked immunosorbent ass...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:10.1128/JCM.32.5.1159-1165.1994
更新日期:1994-05-01 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::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::Severe fever with thrombocytopenia syndrome (SFTS) is an emerging infectious disease with a high case fatality risk and is caused by the SFTS virus (SFTSV). A retrospective study conducted after the first identification of an SFTS patient in Japan revealed that SFTS is endemic to the region, and the virus exists indig...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:10.1128/JCM.00742-14
更新日期:2014-09-01 00:00:00
abstract::The Echinococcus Western Blot IgG (LDBIO Diagnostics, Lyon, France), using a whole larval antigen from Echinococcus multilocularis, was evaluated for serodiagnosis and differentiation between two human parasitic infections of worldwide importance: cystic echinococcosis, due to Echinococcus granulosus, and alveolar ech...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:10.1128/JCM.38.10.3718-3721.2000
更新日期:2000-10-01 00:00:00
abstract::In this issue of the Journal of Clinical Microbiology, R. E. Bumgarner, D. Harrison, and J. E. Hsu (J Clin Microbiol 58:e00121-19, 2020, https://doi.org/10.1128/JCM.00121-19) address in a retrospective analysis that clonality of Cutibacterium acnes isolates from deep tissue specimens obtained from patients during revi...
journal_title:Journal of clinical microbiology
pub_type: 评论,杂志文章
doi:10.1128/JCM.01638-19
更新日期:2020-01-28 00:00:00
abstract::Analysis of the electrophoretic profiles of the outer membrane proteins could be used to differentiate Campylobacter jejuni (16 strains) from Campylobacter coli (10 strains). This observation was confirmed by the study of DNA homology obtained by a quantitative filter hybridization method. The hippurate hydrolysis tes...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:10.1128/JCM.27.5.1072-1076.1989
更新日期:1989-05-01 00:00:00
abstract::Mycobacteria include a large number of pathogens. Identification to species level is important for diagnoses and treatments. Here, we report the development of a Web-accessible database of the hsp65 locus sequences (http://msis.mycobacteria.info) from 149 out of 150 Mycobacterium species/subspecies. This database can ...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:10.1128/JCM.02602-10
更新日期:2011-06-01 00:00:00
abstract::We used an enzyme-linked immunosorbent assay (ELISA) of immunoglobulin G avidity to determine the dengue immune status of 105 pairs of serum samples from patients infected with dengue virus. This study shows that a simple avidity test, for which only one acute-phase serum sample is required, is potentially more useful...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:10.1128/JCM.43.11.5784-5786.2005
更新日期:2005-11-01 00:00:00