Abstract:
:A new method has been developed for demonstration of heat-labile (LT) enterotoxin produced by Escherichia coli. This method is based upon the release of LT from bacteria grown directly onto agar plates which have been coated with ganglioside GM1. Toxin bound to the GM1 solid state is subsequently demonstrated by means of a three-step immunoenzymatic procedure in which enzyme-substrate reactions are visualized as dark spots in agarose. When analyzing LT production from 105 E. coli strains, results obtained by this procedure (GM1-ELISPOT) correlated well with those of the GM1 enzyme-linked immunosorbent assay (GM1-ELISA); in no instance were any false-positive reactions observed when highly specific monoclonal antibodies against LT were used. Easy to perform, the GM1-ELISPOT allows demonstration of LT within 24 h after inoculation of the plates, and large numbers of specimens can be screened at the same time without the need of any special equipment. Thus, this new method should meet the requirements of any diagnostic laboratory.
journal_name
J Clin Microbioljournal_title
Journal of clinical microbiologyauthors
Czerkinsky CC,Svennerholm AMdoi
10.1128/JCM.17.6.965-969.1983subject
Has Abstractpub_date
1983-06-01 00:00:00pages
965-9issue
6eissn
0095-1137issn
1098-660Xjournal_volume
17pub_type
杂志文章abstract::We present the first case of severe pneumonia possibly caused by Leptotrichia species with oral bacteria. This was found in a healthy but elderly subject whose bronchoalveolar lavage fluid was analyzed by 16S rRNA gene sequencing analysis. The combination of this method and microscopic observation provided useful info...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:10.1128/JCM.01429-08
更新日期:2009-02-01 00:00:00
abstract::Group A streptococcus (GAS) species cause bacterial pharyngitis in both adults and children. Early and accurate diagnosis of GAS is important for appropriate antibiotic therapy to prevent GAS sequalae. The Revogene Strep A molecular assay (Meridian Bioscience Canada Inc, Quebec City, QC, Canada) is an automated real-t...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:10.1128/JCM.01775-19
更新日期:2020-06-24 00:00:00
abstract::Reference strains of serotypes 1 to 12 of Actinobacillus (Haemophilus) pleuropneumoniae were cultured in Eagle minimal essential medium with 10% Serum Plus. Culture supernatants were examined for cytotoxicity to alveolar macrophages and for the ability to hemolyze sheep erythrocytes. All strains except the reference s...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:10.1128/JCM.27.6.1187-1191.1989
更新日期:1989-06-01 00:00:00
abstract::The coelomycete Colletotrichum gloeosporioides was isolated in pure culture from subcutaneous nodules of the left forearm and elbow of a farmer after traumatic injury. To our knowledge, we report the first case involving this fungus as an etiological agent of subcutaneous infection. The in vitro inhibitory activities ...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:10.1128/JCM.36.10.3060-3065.1998
更新日期:1998-10-01 00:00:00
abstract::We evaluated the Phoenix automated microbiology system (BD Diagnostic Systems, Sparks, MD) for the identification (ID) and antimicrobial susceptibility testing (AST) of challenge and clinical staphylococci and enterococci recovered from patients in a tertiary-care medical center. In total, 424 isolates were tested: 90...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:10.1128/JCM.02636-05
更新日期:2006-06-01 00:00:00
abstract::Polyclonal anti-idiotypic antibodies (anti-Ids) were generated by the sequential immunization of rabbits with three mouse monoclonal antibodies (MAb1s) specific for a major bluetongue virus (BTV) protein, VP7. The anti-Ids, designated RAb2s, recognized idiotopes which were located within or near the antigen-combining ...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:10.1128/JCM.33.4.850-854.1995
更新日期:1995-04-01 00:00:00
abstract::The recently sequenced genome of Campylobacter jejuni RM1221 revealed the presence of three integrated bacteriophage-like elements. In this study, genes from the first element, a Mu-like bacteriophage, were amplified by PCR and used to probe pulsed-field gels of clinical C. jejuni strains obtained from a waterborne ou...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:10.1128/JCM.01513-06
更新日期:2007-02-01 00:00:00
abstract::A 2-h nonisotopic DNA probe assay for the direct detection of Neisseria gonorrhoeae in urogenital specimens has recently been modified (PACE 2; Gen-Probe, San Diego, Calif.). The new assay format was developed to increase the sensitivity of the assay and simplify procedural steps. In this study, the new DNA probe test...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:10.1128/JCM.29.5.883-888.1991
更新日期:1991-05-01 00:00:00
abstract::Survival of anaerobic and aerobic bacteria in a commercially available, non-supportive, gassed (oxygen-free) transport container (Anaport) was evaluated quantitatively. Saline-suspended obligate anaerobes survived significantly better in the gassed container in aerobic control tubes (P less than 0.025, t test), and co...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:
更新日期:1976-02-01 00:00:00
abstract::This study estimated the regional and age- and gender-specific seroprevalences of herpes simplex virus type 1 (HSV-1) and HSV-2 in Ontario, Canada. Stored serum specimens from subjects aged 15 to 44 years, including men (n = 979), women not under prenatal care (n = 638), and women under prenatal care (n = 701) submitt...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:10.1128/jcm.41.1.84-89.2003
更新日期:2003-01-01 00:00:00
abstract::The food-borne pathogen Listeria monocytogenes is genetically heterogeneous. Although some clonal groups have been implicated in multiple outbreaks, there is currently no consensus on how "epidemic clones" should be defined. The objectives of this work were to compare the patterns of sequence diversity on two sets of ...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:10.1128/JCM.01874-13
更新日期:2013-11-01 00:00:00
abstract::We evaluated the performance characteristics of a new, real-time nucleic acid sequence-based amplification (NASBA) assay that incorporates molecular beacon technology for detection of human immunodeficiency virus type 1 (HIV-1). The quantitative results were comparable to those obtained with three leading commercially...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:10.1128/JCM.02187-05
更新日期:2006-06-01 00:00:00
abstract::The incidence of candidemia caused by Candida albicans and Candida glabrata is constantly increasing and is accompanied by the rising use of the few available antifungals. The widespread use of echinocandins and azoles for the treatment of invasive candidemia has enhanced the development of antifungal resistance, resu...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:10.1128/JCM.00420-18
更新日期:2018-08-27 00:00:00
abstract::We determined the frequency with which human immunodeficiency virus (HIV) peripheral blood mononuclear cell cultures convert from positive to negative in subjects enrolled in a substudy of AIDS Clinical Trials Group (ACTG) 320, which compared the efficacy of treatment with a combination of indinavir, zidovudine, and l...
journal_title:Journal of clinical microbiology
pub_type: 临床试验,杂志文章,随机对照试验
doi:10.1128/jcm.40.6.2089-2094.2002
更新日期:2002-06-01 00:00:00
abstract::Two hundred ninety isolates of Escherichia coli were investigated for the production of extended-spectrum beta-lactamases (ESBLs). Fourteen (4.8%) of the 290 strains were found to produce ESBLs. Each of the 14 strains produced one or two ESBLs, as follows: 10 strains produced TEM-52, 1 strain produced SHV-2a, 1 strain...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:10.1128/JCM.37.6.1758-1763.1999
更新日期:1999-06-01 00:00:00
abstract::It has been shown that some, but not all, Escherichia coli strains isolated from urine adhere, in vitro, to the surface of uroepithelial or vaginal cells. In the present study, 212 strains, isolated from urine of 212 infected patients, were tested for adhesion by using an in vitro human cell line assay. A variable deg...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:10.1128/JCM.10.4.563-566.1979
更新日期:1979-10-01 00:00:00
abstract::Chronic hepatitis B virus (HBV) infection via perinatal transmission is common in the Asia-Pacific region, but related quasispecies (QS) characteristics are not yet defined. To investigate the homologous, full-length HBV QS after perinatal infection and their clinical implications, five pairs of mother-daughter patien...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:10.1128/JCM.03338-13
更新日期:2014-05-01 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::Until recently, the laboratory diagnosis of central nervous system (CNS) infections with herpes simplex virus (HSV) has been limited by poor sensitivity and/or specificity. We assessed the diagnostic utility of PCR for detection of HSV in over 2,100 specimens referred to the Mayo Clinic from August 1993 to May 1996. D...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:10.1128/JCM.35.11.2873-2877.1997
更新日期:1997-11-01 00:00:00
abstract::Methicillin-resistant Staphylococcus aureus (MRSA) infection and colonization, involving MRSA strains which differ from common human health care-associated clones, have become serious emerging conditions in equine veterinary hospitals. In 2010, MRSA spa type t535 caused an outbreak involving both horses and personnel ...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:10.1128/JCM.00090-15
更新日期:2015-09-01 00:00:00
abstract::In order to increase the database for in vitro growth and/or susceptibility testing in liquid media, we evaluated the growth of Helicobacter pylori in broth media containing 5% sheep blood. We also compared the effect of bismuth on the growth of H. pylori in broth media containing 10% fetal calf serum with the effect ...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:10.1128/JCM.33.4.1028-1030.1995
更新日期:1995-04-01 00:00:00
abstract::Enterocytozoon bieneusi, a microsporidian parasite, has been recognized since 1985 as an agent of intestinal microsporidiosis leading to malabsorption syndrome, diarrhea, and weight loss in AIDS patients. Recently, however, we have identified E. bieneusi spores in the sputum, bronchoalveolar lavage, and stool samples ...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:10.1128/JCM.35.7.1862-1866.1997
更新日期:1997-07-01 00:00:00
abstract::We evaluated a commercially available second-generation anti-H. pylori immunoglobulin G enzyme immunoassay (EIA) (Cobas Core Anti-Helicobacter pylori EIA; Roche S. A., Basel, Switzerland) for serodiagnosis of H. pylori infection. The results of the assay were assessed in relation to the results of bacterial culture, u...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:10.1128/JCM.30.1.176-180.1992
更新日期:1992-01-01 00:00:00
abstract::A novel one-step, closed-tube, loop-mediated isothermal amplification (LAMP) assay for detecting Entamoeba histolytica, one of the leading causes of morbidity in developing countries, was developed. The sensitivity of the LAMP assay is 1 parasite per reaction. A total of 130 clinical samples were analyzed, and the res...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:10.1128/JCM.00105-09
更新日期:2009-06-01 00:00:00
abstract::Osiris is a video zone size reader for disk diffusion tests featuring a built-in extended expert system (EES). The efficacy of the EES for the identification of the beta-lactam susceptibility phenotypes of Pseudomonas aeruginosa isolates was evaluated. Thirteen beta-lactams were tested in four laboratories by the disk...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:10.1128/jcm.41.8.3712-3718.2003
更新日期:2003-08-01 00:00:00
abstract::Indirect and double-antibody sandwich enzyme-linked immunosorbent assay techniques were compared for serotyping 42 herpes simplex virus isolates. Both procedures gave similar results, which were in complete agreement with those obtained by inhibition of the indirect hemagglutination test. The indirect technique proved...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:10.1128/JCM.17.5.942-944.1983
更新日期:1983-05-01 00:00:00
abstract::The heterogeneity and the increasing clinical importance of the Enterobacter cloacae complex have often been discussed. However, little is known about molecular factors causing pathogenicity within this nomenspecies. Here, we analyzed the genetic differences between an avirulent plant isolate and a pathogenic strain c...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:10.1128/JCM.00885-12
更新日期:2012-10-01 00:00:00
abstract::Capnocytophaga canimorsus is a dog oral commensal that causes rare but severe infections in humans. C. canimorsus was recently shown to be endowed with a capsular polysaccharide implicated in resistance to the innate immune system of the host. Here, we developed the first C. canimorsus capsular serotyping scheme. We d...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:10.1128/JCM.00249-17
更新日期:2017-06-01 00:00:00
abstract::Evaluation of candidate antiviral drugs against Epstein-Barr virus (EBV), human herpesvirus 6 (HHV-6), and HHV-8 is hampered by the lack of convenient laboratory assays. We developed real-time quantitative PCR assays performed on supernatants of lymphoma cell lines and determined the 50% inhibitory concentrations (IC5...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:10.1128/JCM.03234-12
更新日期:2013-04-01 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