Abstract:
:A fundamental role for the endosymbiotic bacteria Wolbachia pipientis in the pathogenesis of Dirofilaria immitis infections has emerged in recent years. Diagnostic opportunities arising from this breakthrough have not yet been fully exploited. This study was aimed at developing conventional and real-time PCR assays to carry out a molecular survey in a convenience sample of cats living in an area where D. immitis is endemic and to evaluate the detection of bacterial DNA in blood as a surrogate assay for diagnosing filaria-associated syndromes in cats. COI and FtsZ loci were used as targets for D. immitis and Wolbachia PCR assays, respectively, and real-time TaqMan PCR assays were used only for Wolbachia. A convenience sample of 307 disease-affected or healthy cats examined at a University facility were PCR tested, and their medical records were investigated. Conventional nested PCR for Wolbachia amplified the endosymbionts of both D. immitis and D. repens, while real-time PCR was highly specific only for the former. Observed prevalences of 0.3 and 10.4% were found using conventional nested PCR assays for D. immitis and real-time PCR for Wolbachia, respectively. Similar prevalences were established using the Wolbachia nested PCR (98% concordance with real-time PCR). The group of Wolbachia-positive samples had a significantly higher proportion of subjects with respiratory signs (29.0% versus 9.7%; P = 0.002). The findings of this study indicate that a highly sensitive PCR assay can be used to detect the Wolbachia organism in the peripheral blood of cats with respiratory signs.
journal_name
J Clin Microbioljournal_title
Journal of clinical microbiologyauthors
Turba ME,Zambon E,Zannoni A,Russo S,Gentilini Fdoi
10.1128/JCM.00528-12subject
Has Abstractpub_date
2012-08-01 00:00:00pages
2624-30issue
8eissn
0095-1137issn
1098-660Xpii
JCM.00528-12journal_volume
50pub_type
杂志文章abstract::A rapid screening test has been developed to detect heat-labile enterotoxin produced by individual colonies of Escherichia coli or Vibrio cholerae growing on media solidified with agar. The applicability of this method for isolating tox mutants of E. coli and V. cholerae has been demonstrated. ...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:
更新日期:1978-08-01 00:00:00
abstract::A new approach, short-oligonucleotide-ligation assay on DNA chip (SOLAC), is developed to detect mutations in rifampin-resistant Mycobacterium tuberculosis. The method needs only four common probes to detect 15 mutational variants of the rpoB gene within 12 h. Fifty-five rifampin-resistant M. tuberculosis isolates wer...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:10.1128/JCM.42.10.4850-4852.2004
更新日期:2004-10-01 00:00:00
abstract::Antiretroviral therapy (ART) during acute HIV infection (AHI) interrupts viral dynamics and may delay the emergence of serological markers targeted by current HIV screening and confirmatory assays, thus creating challenges for correctly classifying HIV infection status. The performance of three HIV antigen/antibody co...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:10.1128/JCM.00757-19
更新日期:2019-09-24 00:00:00
abstract::Although two phenotypes of the opportunistic pathogen Propionibacterium acnes (types I and II) have been described, epidemiological investigations of their roles in different infections have not been widely reported. Using immunofluorescence microscopy with monoclonal antibodies (MAbs) QUBPa1 and QUBPa2, specific for ...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:10.1128/JCM.43.1.326-334.2005
更新日期:2005-01-01 00:00:00
abstract::Crude extracts of Dolichos biflorus can be coupled to polystyrene particles to yield an agglutination reagent for the detection of group C streptococcal antigen extracts. The reagent is relatively inexpensive and simple to prepare and can be employed for the definitive identification of this beta-hemolytic streptococc...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:10.1128/JCM.19.1.83-84.1984
更新日期:1984-01-01 00:00:00
abstract::Although numerous perioperative samples and culture media are required to diagnose prosthetic joint infection (PJI), their exact number and types have not yet been definitely determined with a high level of proof. We conducted a prospective multicenter study to determine the minimal number of samples and culture media...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章,多中心研究
doi:10.1128/JCM.02497-15
更新日期:2016-02-01 00:00:00
abstract::The cellular fatty acid composition of Legionella feeleii was determined by capillary gas-liquid chromatography, and the ubiquinone content was determined by reverse-phase high-pressure liquid chromatography. As in other Legionella species, this new species is characterized by relatively large amounts of branched-chai...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:10.1128/JCM.18.4.917-919.1983
更新日期:1983-10-01 00:00:00
abstract::We evaluated a new hepatitis C virus RNA assay based on one-stage PCR followed by liquid hybridization with an oligonucleotide probe and compared it with nested-set PCR. The one-stage and nested-set PCR assays had identical sensitivities in analytical experiments and showed 100% concordance when clinical specimens wer...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:10.1128/JCM.31.2.289-291.1993
更新日期:1993-02-01 00:00:00
abstract::Simple sample-processing methods for PCR detection of Porphyromonas gingivalis, a major pathogen causing adult periodontitis, from saliva were studied. The ability to detect P. gingivalis from 118 salivary samples by PCR after boiling and Chelex 100 processing was compared with bacterial culture. P. gingivalis was det...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:10.1128/JCM.36.1.157-160.1998
更新日期:1998-01-01 00:00:00
abstract::Antigens of Rhodococcus equi were analyzed by immunoblotting with naturally infected foal sera. Immunoblots of whole-cell antigen preparations of clinical isolates of R. equi revealed that major protein bands with molecular masses of 15 to 17 kDa were present in all clinical isolates tested and all isolates virulent f...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:10.1128/JCM.29.3.439-443.1991
更新日期:1991-03-01 00:00:00
abstract::The epidemiological implications of the recent separation of "Entamoeba histolytica" into two separate species, pathogenic E. histolytica sensu stricto and commensal E. dispar, will not become apparent without methods of distinguishing between them which are applicable to large numbers of specimens. We have modified a...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:10.1128/JCM.35.5.1108-1111.1997
更新日期:1997-05-01 00:00:00
abstract::In order to investigate the seroprevalence of human herpesvirus 8 (HHV-8) infection in central and southern Italy, sera from human immunodeficiency virus (HIV)-seronegative subjects, with and without Kaposi's sarcoma (KS), were analyzed by immunofluorescence assay, using BC-3, a cell line latently infected with HHV-8....
journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:10.1128/JCM.37.4.1150-1153.1999
更新日期:1999-04-01 00:00:00
abstract::Glutaraldehyde-fixed sheep erythrocytes (GA-SRBC) were used in the indirect hemagglutination test for the detection of Pasteurella antibody. GA-SRBC were stable for at least 6 months. Heat extract or potassium thiocyanate extract antigens of Pasteurella strains could be adsorbed onto GA-SRBC or tanned GA-SRBC, respect...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:10.1128/JCM.15.5.752-756.1982
更新日期:1982-05-01 00:00:00
abstract::CHROMagar MRSA was evaluated for its ability to identify methicillin-resistant Staphylococcus aureus (MRSA). A well-defined collection consisting of 216 MRSA strains and 241 methicillin-susceptible Staphylococcus aureus isolates was used. The sensitivity of CHROMagar MRSA after 24 h of incubation was 95.4%, increasing...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:10.1128/JCM.43.4.1925-1927.2005
更新日期:2005-04-01 00:00:00
abstract::Between 1 and 2% of the population in the developed world experiences a nonhealing or chronic wound characterized by an apparent arrest in a stage dominated by inflammatory processes. Lately, research groups have proposed that bacteria might be involved in and contribute to the lack of healing of these wounds. To inve...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:10.1128/JCM.00501-08
更新日期:2008-08-01 00:00:00
abstract::The incidence of enterovirus 71 (EV71) infection has greatly increased in the Asian Pacific region since 1997. Several large outbreaks, caused by different subgenogroups of EV71, occurred with high rates of morbidity and a substantial number of deaths. In 2007, 58 cases of EV71 infection requiring hospitalization were...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:10.1128/JCM.00507-09
更新日期:2009-09-01 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::A simple new agar medium containing L-canavanine, glycine, and bromthymol blue was found to give a clearer and more accurate distinction between serotype A or D (Cryptococcus neoformans var. neoformans) and serotype B or C (C. neoformans var. gattii) than creatinine-dextrose-bromthymol blue or glycine-cycloheximide-ph...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:10.1128/JCM.15.3.535-537.1982
更新日期:1982-03-01 00:00:00
abstract::Saksenaea is a monotypic genus belonging to the order Mucorales and capable of producing severe human infections. Through a polyphasic study based on analysis of the sequences of the internal transcribed spacer (ITS) region, domains D1 and D2 of the 28S rRNA gene, and the elongation factor 1α (EF-1α) gene, as well as ...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:10.1128/JCM.01646-10
更新日期:2010-12-01 00:00:00
abstract::In this report, we present a case of rhino-orbital mucormycosis in a 57-year-old female with poorly controlled diabetes mellitus. The only mold cultured at 25°C, 37°C, and 40°C from a specimen of the nasal crust was identified phenotypically and independently using nuclear ribosomal DNA sequence data as Thamnostylum l...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:10.1128/JCM.06611-11
更新日期:2012-04-01 00:00:00
abstract::Specimens of colonic mucosa from two pigs with diarrhea were examined by light and electron microscopy. The epithelial surfaces of both pigs were extensively colonized by large spirochetes morphologically compatible with Treponema hyodysenteriae or Treponema innocens. The microorganisms were intimately attached end-on...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:10.1128/JCM.27.5.1139-1141.1989
更新日期:1989-05-01 00:00:00
abstract::Classical microbiological diagnosis of human brucellosis is time-consuming, hazardous, and subject to variable interpretation. Intact-cell matrix-assisted laser desorption ionization-time of flight mass spectrometry (MALDI-TOF MS) was evaluated for the routine identification of Brucella spp. Analysis of mass peak patt...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:10.1128/JCM.01720-13
更新日期:2013-09-01 00:00:00
abstract::A mathematical analysis of serological data has provided the basis for a new serotyping routine. This paper describes the process whereby the results of agglutination reactions between the standard O antigens of Escherichia coli and rabbit antisera raised against them were used to produce a much simpler, faster, and c...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:10.1128/JCM.25.5.774-780.1987
更新日期:1987-05-01 00:00:00
abstract::We determined the types of cholera toxin (CT) produced by a collection of 185 Vibrio cholerae O1 strains isolated in Bangladesh over the past 45 years. All of the El Tor strains of V. cholerae O1 isolated since 2001 produced CT of the classical biotype, while those isolated before 2001 produced CT of the El Tor biotyp...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:10.1128/JCM.01304-06
更新日期:2006-11-01 00:00:00
abstract::A new method for determining the MICs for Aspergillus species with slant-shaking incubation is described. The method was rapid (24 h), produced sharp visual end points, and showed high reproducibility. Additionally, MICs measured by this method correlated well with, as well as were two- to sixfold lower than, those by...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:10.1128/JCM.31.4.1009-1012.1993
更新日期:1993-04-01 00:00:00
abstract::PCR has greatly facilitated pertussis diagnosis due to the speed, sensitivity, and specificity of this assay compared to other detection methods. Various single-target PCR assays are currently utilized, but none is universally considered to be the "gold standard." Our aim was to assess the use of multitarget versus si...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:10.1128/JCM.02042-06
更新日期:2007-02-01 00:00:00
abstract::The nucleic acid sequence of the putative 5'-untranslated (5PUT) region of hepatitis C virus (HCV), determined for samples obtained from a variety of geographic origins, was found to be over 98% conserved among all isolates. On the basis of this signature sequence for HCV, a viral RNA assay was developed by using cDNA...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:10.1128/JCM.29.11.2528-2534.1991
更新日期:1991-11-01 00:00:00
abstract::As microbial genomics makes increasingly important contributions to clinical and public health microbiology, the interpretation of whole-genome sequence data by nonspecialists becomes essential. In the absence of capsule-based vaccines, two protein-based vaccines have been used for the prevention of invasive serogroup...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:10.1128/JCM.02161-20
更新日期:2020-12-17 00:00:00
abstract::From August 1996 to May 1997, six verotoxin-producing Escherichia coli (VTEC) strains were isolated from stool specimens of adults suffering from hemolytic-uremic syndrome (HUS). All the isolates were stx2 positive and belonged to different serotypes: O6:H4, O91:H10, O91:H21, O rough:H16, OX3:H-, and O nontypeable: H-...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:10.1128/JCM.36.6.1777-1780.1998
更新日期:1998-06-01 00:00:00
abstract::Anaerobes are an important but uncommon cause of bloodstream infections (BSIs). For pediatric patients, routine inclusion of an anaerobic blood culture alongside the aerobic remains controversial. We implemented automatic anaerobic blood culture alongside aerobic blood cultures in a pediatric emergency department (ED)...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:10.1128/JCM.01844-19
更新日期:2020-08-24 00:00:00