Abstract:
:An automated enzymatic method was developed for the measurement of D-arabinitol in human serum. The assay is based on a novel, highly specific D-arabinitol dehydrogenase from Candida tropicalis. This enzyme catalyzes the oxidation of D-arabinitol to D-ribulose and the concomitant reduction of NAD+ to NADH. The NADH produced is used in a second reaction to reduce p-iodonitrotetrazolium violet (INT) to INT-formazan, which is measured spectrophotometrically. The entire reaction sequence can be performed automatically on a COBAS MIRA-S clinical chemistry analyzer (Roche Diagnostic Systems, Inc., Montclair, N.J.). Replicate analyses of human sera supplemented with D-arabinitol over a concentration range of 0 to 40 microM demonstrated that the pentitol could be measured with an accuracy of +/- 7% and a precision (standard deviation) of +/- 0.4 microM. Serum D-arabinitol measurements correlated with those determined by gas chromatography (r = 0.94). The enzymatic method is unaffected by L-arabinitol, D-mannitol, or other polyols commonly found in human serum. Any of 17 therapeutic drugs potentially present in serum did not significantly influence assay performance. Data illustrating the application of the assay in patients for possible diagnosis of invasive candidiasis and the monitoring of therapeutic intervention are presented. The automated assay described here was developed to facilitate the investigation of D-arabinitol as a serum marker for invasive Candida infections.
journal_name
J Clin Microbioljournal_title
Journal of clinical microbiologyauthors
Switchenko AC,Miyada CG,Goodman TC,Walsh TJ,Wong B,Becker MJ,Ullman EFdoi
10.1128/JCM.32.1.92-97.1994subject
Has Abstractpub_date
1994-01-01 00:00:00pages
92-7issue
1eissn
0095-1137issn
1098-660Xjournal_volume
32pub_type
杂志文章abstract::Evaluations of screening tests for bacteriuria have traditionally compared the test results with those of quantitative urine cultures. However, many patients with symptomatic urinary tract infections can have less than 10(5) CFU/ml in their urine. Therefore, the results of urine culture and three screening tests (Bac-...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:10.1128/JCM.25.3.467-470.1987
更新日期:1987-03-01 00:00:00
abstract::The technique of random amplified polymorphic DNA (RAPD) was adapted and optimized to study Haemophilus ducreyi isolates. A panel of 43 strains isolated from chancroid patients from different countries in Africa, Europe, North America, and Asia were characterized. The strains were also studied with respect to lipoolig...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:10.1128/JCM.44.1.132-137.2006
更新日期:2006-01-01 00:00:00
abstract::The control of vancomycin-resistant enterococci (VRE) has become an increasing burden on health care resources since their discovery over 20 years ago. Current techniques employed for their detection include time-consuming and laborious phenotypic methods or molecular methods requiring costly equipment and consumables...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:10.1128/JCM.01000-12
更新日期:2012-09-01 00:00:00
abstract::To define the optimal conditions for human immunodeficiency virus (HIV) detection in microcultures, experiments were conducted with different ratios of patient and donor peripheral blood mononuclear cells (PBMCs). Donor/patient PBMC ratios ranged from 1:1 to 1:125. Optimal results were obtained when 1,500,000 donor ce...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:10.1128/JCM.28.4.734-737.1990
更新日期:1990-04-01 00:00:00
abstract::Knowledge of polyomavirus BK (BKV) genomic diversity has greatly expanded. The implications of BKV DNA sequence variation for the performance of molecular diagnostic assays is not well studied. We analyzed 184 publically available VP-1 sequences encompassing the BKV genomic region targeted by an in-house quantitative ...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:10.1128/JCM.01230-11
更新日期:2011-12-01 00:00:00
abstract::Patients with atrophic corpus gastritis and elevated Helicobacter pylori antibody titers but 13C-urea breath test (13C-UBT) and histology results negative for H. pylori were randomized into eradication therapy or follow-up only. Antibody levels decreased significantly in six out of seven patients in the eradication gr...
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.36.6.1808-1810.1998
更新日期:1998-06-01 00:00:00
abstract::We report disseminated adenovirus (ADV) infection in four adult cancer patients presenting with focal pulmonary consolidation. In all cases, ADV was recovered from respiratory specimens and ADV viremia (>1 × 10(5) copies/ml) was determined by a quantitative PCR assay. Despite antiviral therapy, 3 (75%) patients died. ...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:10.1128/JCM.01893-13
更新日期:2014-01-01 00:00:00
abstract::This study involved the rapid, direct identification of Staphylococcus aureus, Streptococcus pneumoniae, Escherichia coli, Haemophilus influenzae, Enterococcus sp., and Streptococcus agalactiae from positive blood culture bottles (BACTEC, Johnston Laboratories, Inc.) by using the AccuProbe (Gen-Probe, San Diego, Calif...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:10.1128/JCM.29.10.2193-2196.1991
更新日期:1991-10-01 00:00:00
abstract::Reactivation of Epstein-Barr virus (EBV) in early human immunodeficiency virus (HIV) infection was investigated in 49 homosexual men who seroconverted to HIV (cases) as compared with 49 matched controls who remained seronegative to HIV during a longitudinal study. EBV infection was reactivated in cases 6 months, but n...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:10.1128/JCM.29.6.1215-1220.1991
更新日期:1991-06-01 00:00:00
abstract::Human (n = 33) and canine (n = 53) Campylobacter upsaliensis isolates from seven countries were genotyped by a new amplified fragment length polymorphism method. We observed 100% typeability and high overall diversity. The majority of human strains (23/33) clustered separately from canine strains, indicating that dogs...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:10.1128/JCM.00079-08
更新日期:2008-04-01 00:00:00
abstract::Sixteen metabolically deficient dwarf-colony mutants of Escherichia coli were isolated from urine culture and represented about 2% of all E. coli isolated during the same period. In 14 cases, mutants were isolated from debilitated patients: elderly persons or patients in the terminal stages of a chronic disease. In 15...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:
更新日期:1978-12-01 00:00:00
abstract::Thirty-six Shiga toxin-producing Escherichia coli (STEC) O111:H- strains, 18 of which were isolated from patients with hemolytic-uremic syndrome (HUS) and 18 from patients suffering from diarrhea, were investigated for their enterohemolytic phenotypes and genotypes. Twenty-two strains were EHEC hemolysin (EHEC Hly) po...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:10.1128/JCM.34.10.2364-2367.1996
更新日期:1996-10-01 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::In 271 Enterobacter blood culture isolates from 12 hospitals, extended-spectrum beta-lactamase (ESBL) prevalence varied between 0% and 30% per hospital. High prevalence was associated with dissemination, indicating the potential relevance of infection control measures. Screening with cefepime or Vitek 2, followed by a...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:10.1128/JCM.00864-11
更新日期:2011-07-01 00:00:00
abstract::The coagulation of Limulus amebocyte lysate (LAL) can be activated through two pathways, one initiated by endotoxin and the other by beta-glucans. The two pathways join at the step of activation of the proclotting enzyme. We report here that the endotoxin-activated pathway can be differentially inhibited by two method...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:10.1128/JCM.32.6.1537-1541.1994
更新日期:1994-06-01 00:00:00
abstract::Vaginal swab specimens may be preferable to cervical swab or urine specimens for the detection of Chlamydia trachomatis and Neisseria gonorrhoeae because of the ease of specimen collection and transport. The purpose of this study was to evaluate whether vaginal swab specimens are equivalent to cervical swab specimens ...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:10.1128/jcm.41.8.3592-3596.2003
更新日期:2003-08-01 00:00:00
abstract::Pulsed-field gel electrophoretic (PFGE) analysis of Helicobacter pylori isolates is not commonly employed because of the inability to compare the typing with other typing systems. We adapted the PFGE analysis for H. pylori by using EcoRI and slightly modified our laboratory methods to improve the typing of isolates (t...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:10.1128/JCM.43.2.931-932.2005
更新日期:2005-02-01 00:00:00
abstract::We compared a nested PCR assay and microscopic examination of Giemsa-stained blood films for detection and identification of Plasmodium spp. in blood specimens. PCR was more sensitive than microscopy and capable of identifying malaria parasites at the species level when microscopy was equivocal. ...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:10.1128/JCM.44.3.1087-1089.2006
更新日期:2006-03-01 00:00:00
abstract::Bilophila wadsworthia is a common inhabitant of the human colon and has been associated with appendicitis and other local sites of inflammation in humans. Challenge-exposure or prevalence studies in laboratory and other animals have not been reported. B. wadsworthia is closely related phylogenetically to Desulfovibrio...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:10.1128/JCM.39.4.1577-1579.2001
更新日期:2001-04-01 00:00:00
abstract::DNA encoding two repeat units of 120-kDa protein of Ehrlichia chaffeensis was cloned into the expression vector pGEX and expressed in Escherichia coli. The sensitivity and specificity of a dot blot assay for detection of human antibodies with the recombinant protein were 86 and 100%, respectively, compared with an ind...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:10.1128/JCM.34.11.2853-2855.1996
更新日期:1996-11-01 00:00:00
abstract::We have developed a single-tube multiplex real-time PCR method for the detection of the eight most common Candida species causing septicemia: Candida albicans, C. dubliniensis, C. famata, C. glabrata, C. guilliermondii, C. krusei, C. parapsilosis, and C. tropicalis. The method developed targets the RNase P RNA gene RP...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:10.1128/JCM.01556-06
更新日期:2007-03-01 00:00:00
abstract::Herpes simplex virus type 1 (HSV-1) encodes 11 envelope glycoproteins, of which glycoprotein G-1 (gG-1) induces a type-specific antibody response. Variability of the gG-1 gene among wild-type strains may be a factor of importance for a reliable serodiagnosis and typing of HSV-1 isolates. Here, we used a gG-1 type-spec...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:10.1128/jcm.40.9.3245-3251.2002
更新日期:2002-09-01 00:00:00
abstract::Group A streptococci and enterococci were identified by two L-pyrrolidonyl-beta-naphthylamide (PYR) hydrolysis tests. One uses Minitek PYR disks (BBL Microbiology Systems, Cockeysville, Md.); the other uses a swab impregnated with PYR reagent. Both tests and Strep-A-Chek (EY Laboratories, San Mateo, Calif.), a commerc...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:10.1128/JCM.25.9.1805-1806.1987
更新日期:1987-09-01 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::Of 532 strains of viridans streptococci isolated from clinical specimens, 517 were identified by using a scheme based on the work of Facklam (R. R. Facklam, J. Clin. Microbiol. 5:184-201, 1977). The strains were distributed among nine of the species described by Facklam and an additional group of physiologically homog...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:10.1128/JCM.15.5.920-925.1982
更新日期:1982-05-01 00:00:00
abstract::Complement-fixing antibody was detected in 13 of 16 patients with histological and/or culture evidence of infection with Nocardia species. The antigen used was a filtrate of soluble substances secreted into liquid growth medium by cultures of N. asteroides. Apparent false positives reactions were found in three of thr...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:
更新日期:1978-11-01 00:00:00
abstract::The modification of an auxanographic method used in yeast species identification to determine potassium nitrate (KNO3) assimilation resulted in a simple and inexpensive KNO3 assimilation test medium. The medium provided accurate and reliable results in less than 24 h. ...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:10.1128/JCM.26.2.366-368.1988
更新日期:1988-02-01 00:00:00
abstract::A LightCycler-based PCR protocol was developed which targets the ospA gene for the identification and quantification of the different Borrelia burgdorferi sensu lato species in culture and in ticks, based on the use of a fluorescently labeled probe (HybProbe) and an internally labeled primer. The detection limit of th...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:10.1128/jcm.40.1.36-43.2002
更新日期:2002-01-01 00:00:00
abstract::A total of 322 single and paired serum samples from children (newborn to 10 years old), young adults (18 to 20 years old), pregnant women and their cord serum samples, and elderly people (more than 70 years old) was tested for antibodies to enteric adenovirus types 40 and 41 by neutralization test. Serum samples were ...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:10.1128/JCM.25.9.1679-1682.1987
更新日期:1987-09-01 00:00:00
abstract::Streptococcus mutans strains were isolated from cohorts of Brazilian nursery school children and genotyped by arbitrarily primed PCR and restriction fragment length polymorphism analysis. Of 24 children with two to five S. mutans isolates, 29% carried two or more genotypes. The presence of matching genotypes of S. mut...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:10.1128/JCM.39.6.2313-2316.2001
更新日期:2001-06-01 00:00:00