Abstract:
:A novel PCR detection assay that amplifies the Helicobacter pylori-specific vacuolating cytotoxin gene (vacA) and thus enables rapid diagnosis of infection is described. Additionally, a real-time probe hybridization melting point analysis assay to detect all three mutations in the 23S rRNA gene associated with clarithromycin resistance was applied directly to antral gastric biopsy samples. Comparison with culture and an alternative PCR assay targeting the 16S rrn gene showed that the vacA assay was sensitive and specific when tested on biopsy samples from 121 patients. Clarithromycin susceptibilities could be determined in the majority (92.3%) of culture-positive gastric biopsy samples analyzed, four of which generated melting peaks indicative of clarithromycin resistance by either an A-->G or A-->C mutation. The presence of the mutations correlated with the clarithromycin disk diffusion sensitivities of matched cultures. This PCR-based system was simple to perform and could be completed in 3 to 4 h, thereby overcoming the delays associated with conventional culture methods for H. pylori identification and susceptibility testing.
journal_name
J Clin Microbioljournal_title
Journal of clinical microbiologyauthors
Chisholm SA,Owen RJ,Teare EL,Saverymuttu Sdoi
10.1128/JCM.39.4.1217-1220.2001subject
Has Abstractpub_date
2001-04-01 00:00:00pages
1217-20issue
4eissn
0095-1137issn
1098-660Xjournal_volume
39pub_type
杂志文章abstract::We investigated the antibody response in women with postpartum fever from whom Ureaplasma urealyticum had been isolated from the bloodstream. Acute- and convalescent-phase sera were tested for immunoglobulin G to the polypeptides of five serovars (1, 2, 3, 4, and 8), representing the two genomic clusters of U. urealyt...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:10.1128/JCM.25.10.1841-1844.1987
更新日期:1987-10-01 00:00:00
abstract::This study investigated the applicability of molecular epidemiological techniques to the identification of the causal agent of an outbreak of diarrhea caused by ingestion of food contaminated with enterotoxigenic Escherichia coli (ETEC). The outbreak occurred at four elementary schools in July 1996 and affected more t...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:10.1128/JCM.36.3.652-656.1998
更新日期:1998-03-01 00:00:00
abstract::Many truly human immunodeficiency virus (HIV) antibody-negative serum samples may be unnecessarily subjected to costly and time-consuming Western blots (immunoblots). An investigation was undertaken to evaluate the efficiency of using a recombinant protein-based enzyme immunosorbent assay (EIA; Cambridge BioScience [C...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:10.1128/JCM.28.6.1169-1171.1990
更新日期:1990-06-01 00:00:00
abstract::We compared serial measurements of antibodies to mannan and to a cytoplasmic antigen (enzyme-linked immunosorbent assays), detection of mannan and an unidentified candidal antigen (latex agglutination), and assays of mannose and arabinitol (gas chromatographic assay of per-O-acetylated aldonitrile derivatives). In a h...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:10.1128/JCM.26.3.409-417.1988
更新日期:1988-03-01 00:00:00
abstract::Evaluation of previously described chemically defined media for the growth of Legionella pneumophila showed that these media supported poor growth of several strains of L. pneumophila and did not support growth of certain of the Legionella species described later. Growth was stimulated by the dialysate from yeast extr...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:10.1128/JCM.23.1.163-169.1986
更新日期:1986-01-01 00:00:00
abstract::Invasive aspergillosis (IA) is a life-threatening infection that mainly occurs in immunocompromised patients. Here, we compared the novel Aspergillus-specific galactomannoprotein (GP) enzyme-linked immunosorbent assay (ELISA) (Euroimmun Medizinische Labordiagnostika AG) to the established Platelia Aspergillus galactom...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:10.1128/JCM.00136-19
更新日期:2019-06-25 00:00:00
abstract::A microhematocrit concentration method (MH) for immediate diagnosis of Chagas' disease during the acute stage or in congenital cases was standardized. Parasitemia as low as 1,000 parasites per ml was detected, after centrifugation of six 50-microliters capillary tubes, by 10-min microscopic observation of each buffy c...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:10.1128/JCM.18.2.327-330.1983
更新日期:1983-08-01 00:00:00
abstract::We report a case of Coccidioides thyroiditis in an HIV-infected patient with a history of recent Coccidioides pneumonia but with negative Coccidioides serology determined by enzyme immunoassay at presentation. Diagnosis of Coccidioides thyroiditis was made based on histopathologic examination and culture of thyroid ab...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:10.1128/JCM.00605-12
更新日期:2012-07-01 00:00:00
abstract::The recent Zaire Ebola virus (EBOV) outbreak in West Africa illustrates clearly the need for additional studies with humans and animals to elucidate the ecology of Ebola viruses (EBVs). In this study, we developed a serological assay based on the Luminex technology. Nine recombinant proteins representing different vir...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:10.1128/JCM.01979-16
更新日期:2016-12-28 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::A sandwich enzyme-linked immunosorbent assay was developed for its potential utility in the detection of antigen in the cerebrospinal fluid of patients with tuberculous meningitis. Cerebrospinal fluids examined included those from untreated (group Ia) and treated (group Ib) Mycobacterium tuberculosis meningitis, nonse...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:10.1128/JCM.23.5.901-904.1986
更新日期:1986-05-01 00:00:00
abstract::We have previously demonstrated homology between a 181-bp fragment of IS6110 and DNA from mycobacteria other than tuberculosis-causing mycobacteria (MOTT). Genomic DNA from 14 strains of MOTT was digested with PvuII and was hybridized with a probe derived from the 181-bp fragment and the INS1/INS2 international standa...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:10.1128/JCM.35.7.1769-1771.1997
更新日期:1997-07-01 00:00:00
abstract::Explanted orthopedic implants from 54 patients with aseptic failure and 24 patients with prosthetic knee or hip infection were sonicated in polyethylene bags. The sensitivities of periprosthetic tissue and sonicate fluid cultures for the diagnosis of prosthetic joint infection were 54% and 75%, whereas the specificiti...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:10.1128/JCM.44.2.628-631.2006
更新日期:2006-02-01 00:00:00
abstract::Participants in the College of American Pathologists' Mycobacteriology E proficiency testing survey in 1993 were asked to complete a questionnaire addressing mycobacterial test methods, test volume, and frequency of detection of drug-resistant Mycobacterium tuberculosis (MTB). A similar questionnaire had been distribu...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:10.1128/JCM.33.2.407-412.1995
更新日期:1995-02-01 00:00:00
abstract::A total of 46 Borrelia burgdorferi sensu lato isolates that were isolated from patients with Lyme borreliosis and infected animals or were extracted from ticks of the genus Ixodes were analyzed. Large restriction fragment patterns obtained after cleavage of genomic DNAs with MluI were analyzed by pulsed-field gel elec...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:10.1128/JCM.31.11.2873-2877.1993
更新日期:1993-11-01 00:00:00
abstract::Current studies indicate that a significant percentage of healthy blood donors carry Chlamydia pneumoniae in their blood. Although the clinical significance of such findings is unknown, eradication of such bacteria from blood components may contribute to transfusion safety. Deletion of C. pneumoniae in Red Blood Cell ...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:10.1128/JCM.43.9.4580-4584.2005
更新日期:2005-09-01 00:00:00
abstract::To evaluate the accuracy and utility of the Eiken Systek No. 1 (Eiken system; Eiken Chemical Co., Ltd., Tokyo, Japan), we conducted a clinical comparison, with 345 Enterobacteriaceae isolates, of the Eiken System with API 20E (Analytab Products, Inc., Plainview, N.Y.) and conventional methods. The Eiken system is a 21...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:10.1128/JCM.20.4.754-757.1984
更新日期:1984-10-01 00:00:00
abstract::The PGMY-PCR for human papillomavirus (HPV) was evaluated, in parallel with nested PCR (nPCR), in samples with noted Hybrid Capture II (HCII) and MY-PCR results. PGMY-PCR detected HPV DNA in 2.5% of HCII-negative-MY-PCR-negative samples and in 71.7% of HCII-positive-MY-PCR-negative samples; also, it detected the MY-PC...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:10.1128/JCM.42.8.3861-3864.2004
更新日期:2004-08-01 00:00:00
abstract::For testing bacterial susceptibility to PD131628, a 5-micrograms disk and the following tentative interpretive criteria may be used: > or = 19 mm for susceptible (MIC, < or = 1.0 micrograms/ml), 16 to 18 mm for intermediate (MIC, 2.0 micrograms/ml), and < or = 15 mm for resistant (MIC, > or = 4.0 micrograms/ml). For s...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:10.1128/JCM.33.1.235-238.1995
更新日期:1995-01-01 00:00:00
abstract::The Triage parasite panel (BIOSITE Diagnostics, San Diego, Calif.) is a new qualitative enzyme immunoassay (EIA) panel for the detection of Giardia lamblia, Entamoeba histolytica/E. dispar, and Cryptosporidium parvum in fresh or fresh, frozen, unfixed human fecal specimens. By using specific antibodies, antigens speci...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:10.1128/JCM.38.9.3337-3340.2000
更新日期:2000-09-01 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::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::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::Blastocystis hominis is now gaining acceptance as an agent of human intestinal disease. A case-control study of the cause of gastroenteritis in children less than 6 years old was conducted. A total of 500 stool specimens were examined by wet mount preparation, formalin-ether concentration, Sheather's sugar flotation t...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:10.1128/JCM.31.10.2706-2708.1993
更新日期:1993-10-01 00:00:00
abstract::The standardized disk diffusion test, in which a 10-micrograms enoxacin disk is used, was performed and microbroth dilution MICs were determined to establish individual test control values with Escherichia coli ATCC 25922, Pseudomonas aeruginosa ATCC 27853, Staphylococcus aureus ATCC 25923, and S. aureus ATCC 29213. I...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:10.1128/JCM.21.3.332-334.1985
更新日期:1985-03-01 00:00:00
abstract::Detection of methicillin (meticillin)-resistant Staphylococcus aureus colonization was assessed using combined nose and groin swabs in two commercial PCR assays (the Xpert MRSA assay and the BD GeneOhm MRSA assay). Compared to routine culture, both had similar sensitivities (87.0% versus 84.8%, respectively) and speci...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:10.1128/JCM.00303-09
更新日期:2009-11-01 00:00:00
abstract::Vaginal discharge specimens from 105 women were examined by wet mount, culture, and a new direct immunofluorescence assay to detect Trichomonas vaginalis. The organism was detected by culture in 31 patients, by direct immunofluorescence in 26 patients, and by wet mount in 21 patients. ...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:10.1128/JCM.24.6.1107-1108.1986
更新日期:1986-12-01 00:00:00
abstract::This study aimed to assess the interlaboratory reproducibility at four university hospital laboratories in the southeast region of France of the Etest technique for the determination of caspofungin (CAS) and amphotericin B (AMB) MICs and to compare it to the CLSI broth microdilution reference method. Consecutive clini...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:10.1128/JCM.00490-12
更新日期:2012-07-01 00:00:00
abstract::The diagnosis and management of pneumonia are limited by the use of culture-based techniques of microbial identification, which may fail to identify unculturable, fastidious, and metabolically active viable but unculturable bacteria. Novel high-throughput culture-independent techniques hold promise but have not been s...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:10.1128/JCM.01028-14
更新日期:2014-10-01 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