Abstract:
:One of the greatest concerns in Chagas' disease is the absence of reliable methods for the evaluation of chemotherapy efficacy in treated patients. The tests available to evaluate cure after the specific treatment are the complement-mediated lysis (CoML) and flow cytometry tests, but they are not feasible for routine clinical use. In this study, we evaluated an enzyme-linked immunosorbent assay (ELISA) based on the recombinant Trypanosoma cruzi complement regulatory protein (rCRP) as a method to determine parasite clearance in comparison to the CoML and other methods such as conventional serology, hemoculture, and PCR in serum samples of 31 patients collected before and after the treatment, monitored for an average of 27.7 months after chemotherapy. The results showed that the percentage of patient samples that were positive by rCRP ELISA was reduced from 100 to 70.3, 62.5, 71.4, and 33.4% in the first, second, third, and fourth years after treatment, respectively, while the samples positive by CoML were reduced to 85.2, 81.2, 71.4, and 33.4% during the same period, demonstrating the same significant tendency in the reduction of positive samples. On the other hand, the conventional serology (CS) tests did not present this reduction. The percentage of samples positive by PCR was initially 77.4% and decreased to 55.5, 68.7, 47.7, and 50.0% at the fourth year after treatment, confirming the drastic clearance of circulating parasites after treatment. Our results strongly suggest that the rCRP ELISA was capable of detecting the early therapeutic efficacy in treated patients and confirmed its superiority over the CS tests and parasitologic methods.
journal_name
J Clin Microbioljournal_title
Journal of clinical microbiologyauthors
Meira WS,Galvão LM,Gontijo ED,Machado-Coelho GL,Norris KA,Chiari Edoi
10.1128/jcm.42.2.707-712.2004subject
Has Abstractpub_date
2004-02-01 00:00:00pages
707-12issue
2eissn
0095-1137issn
1098-660Xjournal_volume
42pub_type
杂志文章abstract::The Porphyromonas gingivalis collagenase-specific serum immunoglobulin A (IgA), IgM, and IgG responses from 20 patients with early-onset periodontitis (EOP), 20 patients with adult periodontitis, (AP), and 20 age- and sex-matched healthy controls were examined by immunoblot analysis. A recombinant collagenase antigen ...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:10.1128/JCM.34.10.2411-2413.1996
更新日期:1996-10-01 00:00:00
abstract::Sputum specimens received for the diagnosis of tuberculosis or other mycobacterial infections were tested by a ligase chain reaction (LCR)-based assay and acid-fast stain and culture techniques. Results from the LCR assay (Abbott LCx Mycobacterium tuberculosis [MTB] Assay) were compared to results from standard cultur...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:10.1128/JCM.36.4.1028-1031.1998
更新日期:1998-04-01 00:00:00
abstract::Since influenza viruses can cause severe illness, timely diagnosis is important for an adequate intervention. The available rapid detection methods either lack sensitivity or require complex laboratory manipulation. This study describes a rapid, sensitive detection method that can be easily applied to routine diagnosi...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:10.1128/JCM.39.1.196-200.2001
更新日期:2001-01-01 00:00:00
abstract::Data are limited for the performance of enzyme immunoassays for the detection of Chlamydia trachomatis in conjunctival and nasopharyngeal specimens from infants. The only available data are for one assay, Chlamydiazyme (Abbott Diagnostics). The purpose of this study was to compare a new enzyme immunoassay, Pathfinder ...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:10.1128/JCM.28.8.1725-1727.1990
更新日期:1990-08-01 00:00:00
abstract::A survey was conducted among Spanish children with gastroenteritis treated in an emergency room. Reverse transcription-PCR with specimens negative for other enteric pathogens was used. The minimum incidence of human calicivirus infection was 7.7%, with Lordsdale as the predominant genotype. The clinical features and s...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:10.1128/jcm.40.10.3857-3859.2002
更新日期:2002-10-01 00:00:00
abstract::Rickettsiae were isolated by cell culture of buffy coat blood from six patients with spotted fever from southeastern Australia and Flinders Island in Bass Strait. The isolates were genetically compared with two previous Rickettsia australis patient isolates. The genus-specific 17-kDA genes from the isolates were compa...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:10.1128/JCM.34.6.1526-1530.1996
更新日期:1996-06-01 00:00:00
abstract::Antibodies to Japanese encephalitis virus (JEV) nonstructural 1 (NS1) protein constitute a marker of natural JEV infection among populations vaccinated with inactivated JE vaccine. In Japan, with few recent human JE cases, the natural infection rate is critical to evaluate the necessity of continuing JE vaccination. A...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:10.1128/JCM.42.11.5087-5093.2004
更新日期:2004-11-01 00:00:00
abstract::The Tigecycline Evaluation and Surveillance Trial (TEST) was designed to monitor global longitudinal changes in bacterial susceptibility to a panel of antimicrobial agents, including tigecycline. In this study, we examine susceptibility among Gram-positive isolates collected from pediatric patients globally between 20...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:10.1128/JCM.00157-13
更新日期:2013-07-01 00:00:00
abstract::The diagnostic utility of Epstein-Barr virus (EBV) DNA detection in cerebrospinal fluid for the diagnosis of central nervous system lymphoma was evaluated with two different PCR assays to test a collection of cerebrospinal fluid samples from 24 AIDS patients with central nervous system disorders. A PCR assay amplifyin...
journal_title:Journal of clinical microbiology
pub_type: 临床试验,杂志文章
doi:10.1128/JCM.33.6.1580-1583.1995
更新日期:1995-06-01 00:00:00
abstract::A group of 120 sera from blood donors was screened by complement fixation and commercially available immunofluorescence, solid-phase fluorescence immunoassay, enzyme-linked immunosorbent assay, and indirect hemagglutination tests. Twenty-four of the sera were positive by three or more of the five tests and judged to b...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:10.1128/JCM.18.6.1296-1300.1983
更新日期:1983-12-01 00:00:00
abstract::Malaria is one of the leading causes of infectious disease in travelers returning from the tropics. The diagnosis of malaria is typically performed by examining Giemsa-stained thick and thin peripheral blood smears, which is time consuming, labor intensive, and requires high levels of proficiency. Alternatively, loop-...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:10.1128/JCM.00806-17
更新日期:2017-10-01 00:00:00
abstract::The AutoSCAN-3 (American MicroScan, Mahwah, N.J.) is an instrument capable of automated reading of commercially available microdilution trays for identification and quantitative susceptibility testing of rapidly growing bacteria. This study compared the results of visual and automated reading of microdilution trays fo...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:10.1128/JCM.18.6.1292-1295.1983
更新日期:1983-12-01 00:00:00
abstract::We developed a strategy to determine the clinical impact associated with errors in clinical microbiology testing. Over a 9-month period, we used a sequential three-stage method to prospectively evaluate 480 consecutive corrected microbiology laboratory reports. The three stages were physician review of the corrected r...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:10.1128/JCM.43.5.2188-2193.2005
更新日期:2005-05-01 00:00:00
abstract::By using the computer-assisted Dendron system to analyze the patterns of Southern blots probed with the repetitive sequence Ca3, we have compared oral isolates of Candida spp. from a group of 11 nonhospitalized patients with AIDS suffering from recurrent episodes of oral thrush in Leicester, England, with oral isolate...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:10.1128/JCM.30.4.935-941.1992
更新日期:1992-04-01 00:00:00
abstract::A method of phage subtyping group A type 49 streptococci is described. The method is similar to that used for phage typing staphylococci, except that lysates obtained by induction with mitomycin C rather than propagated stock phages were used. Five type 49 strains were used as phage donors. Seventy-two strains of type...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:
更新日期:1976-09-01 00:00:00
abstract::An evaluation of the serotyping system for Proteus rettgeri has been performed through its application to 561 human isolates of this species. Of these, 545 were typable and could be separated into 58 O serotypes. A group of isolates from one hospital, and clinically implicated in cross-infections, was found to belong ...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:
更新日期:1976-04-01 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::A total of 192 hybridomas were developed from mice immunized with Rickettsia japonica, a newly identified spotted fever group rickettsia pathogenic for humans. Of these hybridomas, 101 were species specific, 37 were spotted fever group reactive, and the other 54 were also reactive with one or more of the other pathoge...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:10.1128/JCM.28.6.1177-1180.1990
更新日期:1990-06-01 00:00:00
abstract::An alpha-toxin disk test is described in which group B streptococci completed the hemolysis of sheep erythrocytes partially lysed by the alpha-toxin of Clostridium perfringens. The test was performed satisfactorily on the sheep blood agar primary isolation plate, as well as on pure cultures. A total of 95% of strains ...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:10.1128/JCM.12.1.18-21.1980
更新日期:1980-07-01 00:00:00
abstract::A chemically defined medium that simulates female genital tract secretions was developed for the growth of the vaginal microflora. Qualitative and quantitative studies of the growth of predominant components of the vaginal microflora indicated that all vaginal isolates tested were able to grow in this defined medium. ...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:10.1128/JCM.30.5.1323-1326.1992
更新日期:1992-05-01 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::Corynebacterium amycolatum has not been reported as a cause of human infections up to now, but usually the bacterium is misidentified in clinical specimens as Corynebacterium xerosis. We report the first case of neonatal sepsis due to Corynebacterium amycolatum with a fatal outcome in a premature infant. ...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:10.1128/JCM.35.4.1011-1012.1997
更新日期:1997-04-01 00:00:00
abstract::For broth microdilution susceptibility tests of Francisella tularensis, Mueller-Hinton broth with 2% Isovitalex is recommended. Using that medium, we studied three standard control strains tested with nine antimicrobial agents potentially efficacious for treating tularemia. An eight-laboratory collaborative study gene...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:10.1128/JCM.42.12.5877-5880.2004
更新日期:2004-12-01 00:00:00
abstract::Meningococcal disease is normally suspected on clinical grounds and is confirmed by isolation of Neisseria meningitidis bacteria from blood or cerebrospinal fluid or, more recently, by serology or PCR of cerebrospinal fluid. Achieving confirmation of a clinical diagnosis of meningococcal disease has become more diffic...
journal_title:Journal of clinical microbiology
pub_type: 临床试验,杂志文章
doi:10.1128/JCM.34.7.1637-1640.1996
更新日期:1996-07-01 00:00:00
abstract::Spontaneously occurring urinary tract infection (UTI) in dogs was exploited as an experiment of nature to gain insights into UTI pathogenesis in humans. Concurrent urinary and rectal Escherichia coli isolates from 37 dogs with UTI were compared with respect to phylogenetic background, O antigens, and extended virulenc...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:10.1128/jcm.41.1.337-345.2003
更新日期:2003-01-01 00:00:00
abstract::A typing enzyme immunoassay (TYPE-EIA) was used to determine the antigenic types of 64 astrovirus-positive specimens from nine collections from seven countries. Six of the seven known astrovirus types were detected in the collections, with HAstV-1 predominating in all collections for one from the United Kingdom. Selec...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:10.1128/JCM.33.4.797-801.1995
更新日期:1995-04-01 00:00:00
abstract::Single colonies of beta-hemolytic streptococci could be grouped by antibody-coated latex bead agglutination or coagglutination with staphylococci coated with antibody after incubation of the colonies with mutanolysin. This simple and quick procedure provided an enzymatic means of enhancing the sensitivity of tests suc...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:10.1128/JCM.15.1.184-186.1982
更新日期:1982-01-01 00:00:00
abstract::A 10-min latex agglutination test kit, Culturette Brand Ten-Minute Group A Strep ID (Marion Scientific, Div. of Marion Laboratories, Inc., Kansas City, Mo.), was assessed for the rapid detection of group A beta-hemolytic streptococcus directly from a throat swab. Four hundred and thirty-five throat swab specimens from...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:10.1128/JCM.21.2.258-259.1985
更新日期:1985-02-01 00:00:00
abstract::We report a novel IS711 chromosomal location that is specific for the Brucella genotype ST27 previously associated with Pacific marine mammals and human zoonotic infection in New Zealand and Peru. Our data support the previous observation that this peculiar genotype is distinct from those commonly isolated from the At...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:10.1128/JCM.05238-11
更新日期:2011-11-01 00:00:00
abstract::Nonfermenting coryneform bacteria identified as Brevibacterium spp. were isolated from routine clinical specimens. Four strains were derived from peritoneal fluid and has presumably been involved in the pathogenesis of continuous ambulatory peritoneal dialysis peritonitis. Another five isolates most probably represent...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:10.1128/JCM.31.6.1408-1412.1993
更新日期:1993-06-01 00:00:00