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At least 757 records · Page 42Linked to original sources
PubMed1995

[The significance of FeLV infection for diseases in necropsied cats].

Persistent FeLV infection was demonstrated in more than 3000 necropsied cats by an immunohistological method. The findings were associated with the diagnoses established by means of post-mortem examination, histopathological, bacteriological, virological, and parasitological investigations. Statistically significant differences between FeLV-positive and FeLV-negative cats in the relative risk for certain lesions could be demonstrated for the first time. As a consequence, the importance of FeLV infection for the development of certain lesions in cats is to be seen under new aspects for some diagnoses. The relative risk for development of anemia, e.g., is only slightly increased in FeLV-positive animals whereas the relative risk for focal myocardial necrosis and coccidiosis is elevated tremendously in these cats. The relative risk for some lesions and diagnoses is much higher in FeLV-negative cats than in FeLV-positive animals. This is true, e.g., for myocardiopathy and hemorrhagic cystitis.

Animals↗
PubMed2005

Cat-scratch disease (ocular bartonellosis) presenting as bilateral recurrent iridocyclitis.

An otherwise healthy 9-year-old girl presented with bilateral recurrent anterior uveitis. Thirteen months later, the diagnosis of cat-scratch disease (ocular bartonellosis) was suspected when neuroretinitis appeared. Confirmation was based on serological test results positive for Bartonella henselae. Antibiotic treatment completely cured the disease, and there have been no further manifestations during a follow-up period of 6 years.

Anti-Bacterial Agents↗
PubMed1991

16S rRNA sequences of Bartonella bacilliformis and cat scratch disease bacillus reveal phylogenetic relationships with the alpha-2 subgroup of the class Proteobacteria.

The primary structures of 16S rRNAs of Bartonella bacilliformis, an isolate of the cat scratch disease (CSD) bacillus, and a strain phenotypically similar to the CSD bacillus were determined by reverse transcriptase sequencing. These microorganisms were found to be members of the alpha-2 subgroup of the class Proteobacteria. The sequence from B. bacilliformis was most closely related to the rRNA of Rochalimaea quintana (91.7% homology), the etiologic agent of trench fever. The sequence from the isolate of the CSD bacillus showed the greatest homology with Brucella abortus (89.7%) and, when compared with oligonucleotide catalog data, formed a cluster with Rhodopseudomonas palustris, Pseudomonas carboxidovorans, Nitrobacter species, and Bradyrhizobium species. The 16S rRNA sequence was also determined for the Cleveland Clinic isolate, which was previously shown to be phenotypically similar to and approximately 30% related, by DNA hybridization, to the CSD bacillus. The Cleveland Clinic isolate was isolated from a patient not diagnosed with CSD. The rRNAs from these bacteria exhibited 98.2% homology, confirming that this isolate is a second species in the same genus as the CSD bacillus. Our data suggest that neither B. bacilliformis nor the CSD bacillus is the etiologic agent of bacillary epithelioid angiomatosis.

Alphaproteobacteria↗
PubMed1997

The lesions of experimental equine morbillivirus disease in cats and guinea pigs.

Nine cats and four guinea pigs became affected with severe disease during experiments on the infectivity of equine morbillivirus, a newly recognized cause of respiratory disease in horses and humans. Four of the cats were challenged by subcutaneous inoculation, two by intranasal installation, two by oral dosage, and one by direct contact with a cat previously infected by subcutaneous inoculation. All four guinea pigs were inoculated subcutaneously. Gross pathology seen in all affected cats was characterized by hydrothorax and dark, heavy, wet, congested and/or hemorrhagic lungs with froth sometimes found in the respiratory passages. Pulmonary lymph nodes were enlarged and edematous. Six cats also had congested ceca with accompanying edema of mesenteric lymph nodes. Histologically, the lesions in the lungs of the cats were those of severe interstitial pneumonia characterized by serofibrinous alveolar edema, alveolar macrophages, intra-alveolar hemorrhage, thrombosis of small veins, alveolar wall necrosis, and syncytial cells. Clearly defined vascular lesions included intramural hemorrhage, edema, and necrosis and syncytial cells in the endothelium of pulmonary arteries and veins, 20-80 microm in diameter. Vascular lesions accompanied by parenchymal degeneration were also seen in the gastrointestinal and lymphoid organs. Syncytial cells were also visible in the lymphoid tissues of lymph nodes, spleen, and Peyer's patches. At necropsy, all guinea pigs were cyanosed and had congestion and edema in the gastrointestinal tract. Histologically, there was widespread vascular disease in arteries and veins, 20-80 microm in diameter, in many organs such as the lungs, kidneys, spleens, lymph nodes, gastrointestinal tracts, and skeletal and intercostal muscles, but there was no severe pulmonary edema as seen in horses and cats. Sections of tissues of the cats and guinea pigs, examined by indirect immunocytochemical stains, confirmed that the vascular damage was associated with the presence of equine morbillivirus antigen. The syncytia in small blood vessels in the lungs and other organs of both cats and guinea pigs were similar to those seen in horses, and their presence was interpreted as an important characteristic of the disease consistent with a reaction to a morbillivirus.

Animals↗
PubMed2001

Enzyme immunoassay for the diagnosis of cat-scratch disease defined by polymerase chain reaction.

Whole-cell immunofluorescent antibody (IFA) tests for detection of anti-Bartonella henselae immunoglobulin (Ig) G are commonly used to diagnose cat-scratch disease (CSD). The need to cultivate B. henselae in Vero cells for antigen preparation and the absence of routinely applied IFA assays for IgM constitute the major disadvantages of this form of test. We describe the results of an enzyme immunoassay (EIA) for IgM and IgG that used N-lauroyl-sarcosine-insoluble outer membrane antigens from agar-grown B. henselae performed in 84 patients with definite CSD (regional lymphadenitis, cat contact, and > or =1 confirmatory test: polymerase chain reaction, skin test, or B. henselae culture). Although this method has been used as a diagnostic tool in several case reports, it has not previously been evaluated in a large study of definitively proven CSD cases. Results of this study indicate that the EIA described herein can play an important role in the serodiagnosis of CSD, although improvement of the sensitivity, particularly that of the IgM, would be desirable.

Adolescent↗