Abstract:
:The effects of Tween 80 supplementation of liquid culture medium on the formation of the superficial L1 layer of the Mycobacterium avium-Mycobacterium intracellulare complex (MAC) were examined by serological and scanning electron microscopic experiments. Specific antiserum to the glycopeptidolipids on the L1 layer of M. avium S-139, made in a rabbit, was used for seroagglutination reactions with antigens prepared from strain S-139 grown in medium supplemented with various levels of Tween 80 (0, 0.05, 0.5, 5, and 50 mg/ml). The agglutination titers gradually decreased as the concentration of Tween 80 rose. Scanning electron microscopy showed that the fibrillar materials consisting mainly of glycopeptidolipids on the L1 layer of strain S-139 also disappeared with increases in the concentration of Tween 80. In addition, there was no obvious correlation between (i) the plasmid DNAs and serotypes of MAC and (ii) formation of the L1 layer of MAC. It is therefore concluded that Tween 80 used to supplement liquid culture medium affects formation of the L1 layer, which has been considered to be one of the pathogenic factors of MAC.
journal_name
J Clin Microbioljournal_title
Journal of clinical microbiologyauthors
Masaki S,Sugimori G,Okamoto A,Imose J,Hayashi Ydoi
10.1128/JCM.29.7.1453-1456.1991subject
Has Abstractpub_date
1991-07-01 00:00:00pages
1453-6issue
7eissn
0095-1137issn
1098-660Xjournal_volume
29pub_type
杂志文章abstract::Well-defined Legionella pneumophila strains were analyzed by amplification of variable genomic regions with arbitrary and repeat sequence primers. Clinical and environmental outbreak-related isolates showed closely related amplicon patterns. Eleven strains of unrelated origins displayed 10 distinct patterns. Fingerpri...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:10.1128/JCM.31.8.2198-2200.1993
更新日期:1993-08-01 00:00:00
abstract::We surveyed 75 clinical laboratories to determine if National Committee for Clinical Laboratory Standards (NCCLS) were being used for the susceptibility testing of Haemophilus influenzae. Of the 66 laboratories that performed susceptibility testing, all claimed to follow current NCCLS guidelines. However, upon further...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:10.1128/JCM.32.8.2013-2015.1994
更新日期:1994-08-01 00:00:00
abstract::Spontaneous chylothorax is rare in adults. We present an unusual case that was complicated by Prevotella bivia empyema. Full recovery was achieved with chest tube drainage and prompt treatment with intravenous clindamycin. ...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:10.1128/JCM.03282-13
更新日期:2014-04-01 00:00:00
abstract::The aim of this study was to describe the frequency of positive Aspergillus tests in COVID-19 patients and investigate the association between COVID-19 and a positive Aspergillus test result. We compared the proportion of positive Aspergillus tests in COVID-19 patients admitted to the ICU for > 24 hours with two contr...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:10.1128/JCM.02278-20
更新日期:2020-12-04 00:00:00
abstract::Stool specimens from 124 international travelers with acute diarrhea were tested for the presence of enteropathogens. Noroviruses (NoVs) were the second most commonly identified enteric pathogen in diarrheal stool samples (21/124, 17%), exceeded only by enterotoxigenic Escherichia coli (50/106, 47%). This study indica...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:10.1128/JCM.43.12.6126-6129.2005
更新日期:2005-12-01 00:00:00
abstract::In the SIGNAL (Oxoid Ltd., Basingstoke, United Kingdom) blood culture system, gas produced by bacterial metabolism displaces medium from the culture bottle into an upper reservoir via a hollow needle. Displacement of media may provide a visual indication of the presence of both aerobic and anaerobic organisms in a sin...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:10.1128/JCM.25.11.2098-2101.1987
更新日期:1987-11-01 00:00:00
abstract::Seventy-eight blood cultures with a Gram stain result of Gram-positive cocci in pairs and/or chains were evaluated with the Nanosphere Verigene Gram-positive blood culture (BC-GP) assay. The overall concordance of the assay with culture was 89.7% (70/78 cultures), allowing for the development of a targeted treatment a...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:10.1128/JCM.01587-13
更新日期:2013-11-01 00:00:00
abstract::A new blood lysis-filtration culture technique revealed a high incidence of Staphylococcus epidermidis in the blood of patients and of healthy people. Of 2,004 blood cultures from patients, the blood lysis method grew S. epidermidis in 233 (11.6%), whereas a conventional two-bottle culture system grew this organism in...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:10.1128/JCM.17.4.628-630.1983
更新日期:1983-04-01 00:00:00
abstract::We compared the dried MicroScan microdilution panel, Synergy Quad plate agar dilution, and high-potency disk diffusion screening methods for the detection of high-level aminoglycoside resistance in 815 enterococcal bloodstream isolates. Agreement between the three methods was 99% when testing for high-level gentamicin...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:10.1128/jcm.41.6.2703-2705.2003
更新日期:2003-06-01 00:00:00
abstract::Fourth-generation human immunodeficiency virus (HIV) screening immunoassays reduce the diagnostic window between infection and diagnosis by the inclusion of HIV p24 antigen detection together with HIV antibody detection in the same test. We compared third- and fourth-generation HIV immunoassays and a dedicated HIV p24...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:10.1128/JCM.43.10.5397-5399.2005
更新日期:2005-10-01 00:00:00
abstract::Rotavirus RNA was detected in the cerebrospinal fluid (CSF) of a child with central nervous system disease symptoms associated with rotavirus gastroenteritis. The rotavirus isolates from the fecal and CSF samples were genotyped as G1P[8]. Sequence analysis of the VP7 and VP4 proteins derived from the fecal and CSF sam...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:10.1128/jcm.40.12.4797-4799.2002
更新日期:2002-12-01 00:00:00
abstract::First-catch early morning urine samples from patients attending a genitourinary medicine clinic were tested by three different enzyme immunoassays. The results suggest significant differences in the sensitivities and specificities of the different assays. The direct visualization of elementary bodies in urine deposits...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:10.1128/JCM.28.2.220-222.1990
更新日期:1990-02-01 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::Eighty-seven strains of Pseudomonas aeruginosa were typed by random amplification of polymorphic DNA (RAPD) and pulsed-field gel electrophoresis (PFGE) of macrorestriction fragments. Stains were clustered on the basis of interpretative criteria as presented previously for the PFGE analysis. Clusters of strains were al...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:10.1128/JCM.34.12.3190-3195.1996
更新日期:1996-12-01 00:00:00
abstract::The enzyme-linked immunosorbent assay (ELISA) has been proposed as an alternative serologic diagnostic test to the indirect immunofluorescence assay (IFA) for scrub typhus. Here, we systematically determine the optimal sample dilution and cutoff optical density (OD) and estimate the accuracy of IgM ELISA using Bayesia...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:10.1128/JCM.02744-15
更新日期:2016-06-01 00:00:00
abstract::PCR detecting the protein D (hpd) and fuculose kinase (fucK) genes showed high sensitivity and specificity for identifying Haemophilus influenzae and differentiating it from H. haemolyticus. Phylogenetic analysis using the 16S rRNA gene demonstrated two distinct groups for H. influenzae and H. haemolyticus. ...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:10.1128/JCM.06702-11
更新日期:2012-04-01 00:00:00
abstract::Resistance to antimonial drugs has been documented in Leishmania isolates transmitted in South America, Europe, and Asia. The frequency and distribution of resistance to these and other antileishmanial drugs are unknown. Technical constraints have limited the assessment of drug susceptibility of clinical strains of Le...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:10.1128/JCM.00216-12
更新日期:2012-07-01 00:00:00
abstract::We compared the relative levels of effectiveness of three commercial identification kits and three nucleic acid amplification tests for the identification of coryneform bacteria by testing 50 diverse isolates, including 12 well-characterized control strains and 38 organisms obtained from pediatric oncology patients at...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:10.1128/JCM.01849-07
更新日期:2008-03-01 00:00:00
abstract::A passive hemagglutination (PHA) assay for antibody to Pseudomonas aeruginosa exotoxin is described which utilizes chromic chloride-treated ovine erythrocytes coated with purified toxin. PHA antitoxin titers correlated well with those obtained by a cytotoxicity neutralization assay (r = 0.91, P less than 0.001), where...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:
更新日期:1977-07-01 00:00:00
abstract::Monoclonal antibody (MAb)-based sandwich direct enzyme-linked immunosorbent assay (MSD-ELISA) methods that can detect foot-and-mouth disease virus (FMDV) antigens, both multiserotype (MSD-ELISA/MS) (for O, A, C, and Asia 1) and single-serotype (MSD-ELISA/SS) (for O, A, and Asia 1, specifically), were developed. MAb 1H...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:10.1128/JCM.00695-09
更新日期:2009-11-01 00:00:00
abstract::The pathogenicity of the fungus Geotrichum candidum in humans has not been clearly defined. A patient with acute leukemia who developed a fatal disseminated G. candidum infection while neutropenic is described. At autopsy examination, this patient was misdiagnosed on the basis of histopathology as having disseminated ...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:10.1128/JCM.25.9.1782-1783.1987
更新日期:1987-09-01 00:00:00
abstract::Two group A, subgroup I, rotavirus strains possessing "super short" RNA patterns were adapted to growth in MA-104 cells. Both produced marked cytopathic effect in primary culture. Reciprocal cross-neutralization titers, polypeptide analysis, and the serum neutralizing antibody response of an infected child suggested t...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:10.1128/JCM.25.1.183-185.1987
更新日期:1987-01-01 00:00:00
abstract::We report a case of Veillonella parvula lumbar discitis and secondary bacteremia confirmed by molecular characterization of the 16S rRNA genes. Identification of the organism was essential for an appropriate choice of antimicrobial therapy following the failure of empirical flucloxacillin. Veillonella spp. are normal ...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章,评审
doi:10.1128/JCM.01633-06
更新日期:2007-02-01 00:00:00
abstract::The use of centrifugation (700 x g, 60 min) in a plaque assay markedly increased (mean, 2.9-fold) the infectivity of all 42 influenza virus strains tested, compared with no centrifugation. Of 13 influenza virus strains isolated from 390 clinical specimens, 9 (69%) were efficiently isolated by the centrifugation assay ...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:10.1128/JCM.28.7.1669-1670.1990
更新日期:1990-07-01 00:00:00
abstract::Nucleic acid sequence capture extraction was coupled with LightCycler PCR amplification and product detection using real-time fluorescence for rapid, definitive detection of Mycobacterium bovis in lymph node specimens from 38 cattle with bovine tuberculosis lesions. PCR amplification of sequence-captured DNA using bot...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:10.1128/JCM.39.4.1272-1278.2001
更新日期:2001-04-01 00:00:00
abstract::For a total of 29 non-human immunodeficiency virus 1 cryptococcal meningitis cases, titer changes in the latex agglutination test before and after therapy were reviewed along with clinical manifestations, laboratory findings, and therapy regimens. The cryptococcal antigen titer decreased for every case after therapy a...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:10.1128/JCM.43.6.2989-2990.2005
更新日期:2005-06-01 00:00:00
abstract::Although substantial epidemiologic evidence links Streptococcus mutans to caries, the pathobiology of caries may involve more complex communities of bacterial species. Molecular methods for bacterial identification and enumeration now make it possible to more precisely study the microbiota associated with dental carie...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:10.1128/jcm.40.3.1001-1009.2002
更新日期:2002-03-01 00:00:00
abstract::The aim of this study was to evaluate the seroprevalence of human herpesvirus 8 (HHV-8) in a group of 150 patients awaiting heart transplants and to detect HHV-8 seroconversion after transplantation. Four patients were HHV-8 seropositive before transplantation, and one of them developed Kaposi's sarcoma. One patient c...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:10.1128/jcm.40.6.2217-2219.2002
更新日期:2002-06-01 00:00:00
abstract::Porphyromonas gingivalis is one of the major causative agents of adult periodontitis. One of the features of this periodontal pathogen is its ability to attach to a variety of oral bacterial surfaces and to colonize subgingival dental plaque. We have shown that Streptococcus cristatus CC5A inhibits expression of fimA,...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:10.1128/JCM.00072-09
更新日期:2009-12-01 00:00:00
abstract::Serological tests to detect Trypanosoma cruzi antibodies have been used for screening blood donors, for epidemic studies, and for diagnosis of probably infected persons. Among different tests, the enzyme-linked immunosorbent assay (ELISA) with total, semipurified, or synthetic antigens has been widely used, mainly due...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:10.1128/JCM.39.12.4390-4395.2001
更新日期:2001-12-01 00:00:00