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Results for “CAT SCRATCH DISEASE”

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PubMed1996

Diagnostic value of the indirect immunofluorescence assay in cat scratch disease with Bartonella henselae and Afipia felis antigens.

Serum samples from 35 cat scratch disease (CSD) patients, 180 control patients (123 without lymph node enlargement and 57 with lymph node enlargement not evoking CSD), and 102 nonpatient subjects (35 with cat contact and 67 without cat contact) were tested by semiquantitative indirect immunofluorescence assay for the presence of antibodies directed to Afipia felis (ATCC 53690T) or Bartonella henselae (ATCC 49882T). The CSD group had statistically higher antibody titers against B. henselae than the control groups (P < 10(-5)), whereas no difference in A. felis antibody titers was evidenced among all groups tested. Among the 317 serum samples studied, the three with high A. felis antibody titers ( > or = 64) also had high antibody titers against other alpha-2 proteobacteria. The value of the indirect immunofluorescence assay with B. henselae antigen for the diagnosis of CSD was as follows: for a cutoff of 32, sensitivity was 0.80, specificity was 0.85, and the likelihood ratio was 5.1; for a cutoff of 64, the likelihood ratio was 12.1. In summary, in France, CSD is associated with high antibody titers against B. henselae, as previously described in the United States. However, the causes for B. henselae seronegativity in CSD patients and those for high antibody titers outside the typical nosological frame of CSD still have to be identified.

Adult↗
PubMed1990

[Splenic calcification following cat scratch disease].

In a 9-year-old girl presenting with symptoms of cat scratch disease, ultrasound of the spleen showed multiple round hypoechogenic nodules which turned into calcifications within a year. Two years later, splenic calcifications were unchanged.

Calcinosis↗
PubMed2000

Polymerase chain reaction detection of Bartonella henselae bacteraemia in an immunocompetent child with cat-scratch disease.

UNLABELLED: A case of Bartonella henselae bacteraemia is reported in an immunocompetent 8-year-old boy with cat-scratch disease. Serology to B. henselae, diagnosed by polymerase chain reaction, was positive. DNA was extracted from peripheral whole blood and amplified with specific primers targeting the htrA gene of B. henselae. A non-isotopic hybridization assay with a species-specific oligonucleotide probe was used to detect the amplified product. CONCLUSION: The polymerase chain reaction can be used for the rapid laboratory diagnosis of bacteraemia in cat-scratch disease.

Antibodies, Bacterial↗
PubMedDate not supplied

[Three cases of bartonellosis (cat scratch disease)].

In the last years the number of Bartonella species has conspicuously increased, with better clinical and diagnostic definitions of the different related illnesses. We report, in the present article, 3 cases of cat-scratch disease, a particular bartonellosis mainly caused by Bartonella henselae which is transmitted by the cat. After an incubation period, cat-scratch disease clinically manifests as a regional lymphoadenitis, with the appearance of a small cutaneous lesion at the site of inoculation of the germ. The pathogenetic agent is susceptible to a number of antibacterial agents, such as penicillin, cephalosporins, aminoglycosides, tetracyclines, macrolides, quinolones, trimethoprim combined with sulphamethoxazole and rifampicin. The prognosis is usually favorable.

Adolescent↗
PubMed2004

The Bartonella henselae sucB gene encodes a dihydrolipoamide succinyltransferase protein reactive with sera from patients with cat-scratch disease.

Bartonella henselae is a recently recognized pathogenic bacterium associated with cat-scratch disease, bacillary angiomatosis and bacillary peliosis. A recombinant clone expressing an immunoreactive antigen of B. henselae was isolated by screening a genomic DNA cosmid library by Western blotting with sera pooled from patients positive for B. henselae IgG antibodies by indirect immunofluorescence (IFA). The deduced amino acid sequence of the 43.7 kDa encoded protein was found to be 76.3 % identical to the dihydrolipoamide succinyltransferase enzyme (SucB) of Brucella melitensis. SucB has been shown to be an immunogenic protein during infections by Brucella melitensis, Coxiella burnetii and Bartonella vinsonii. The agreement between reactivity with a recombinant SucB fusion protein on immunoblot analysis and the results obtained by IFA was 55 % for IFA-positive sera and 88 % for IFA-negative sera. Cross-reactivity was observed with sera from patients with antibodies against Brucella melitensis, Mycoplasma pneumoniae, Francisella tularensis, Coxiella burnetii and Rickettsia typhi.

Acyltransferases↗