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At least 793 records · Page 44Linked to original sources
PubMed1977

[Latex-Chagestest-reactions of immunsera against Bartonella bacilliformis, Haemobartonella muris and Eperythrozoon coccoides (author's transl)].

Sera from 10 patients positive for Carrion's disease were analysed by means of the latex Chagas test. Sera from 40 SPF-rats experimentally infected with Haemobartonella muris and 5 SPF-mice experimentally infected with Eperythrozoon coccoides were similarly tested. Both the human and mice sera were negative whereas positive reaction was observed with rat sera. The nature of this positive reaction has not been clarified.

Anaplasmataceae↗
PubMed1999

Live Bartonella henselae enhances endothelial cell proliferation without direct contact.

The proliferation of human umbilical vein endothelial cells (HUVECs) cocultivated with live B. henselae was enhanced in a bacterial dose-dependent manner, and the stimulatory effect was specific to vascular endothelial cells. The inactivation of B. henselae by UV or heat treatment abolished its stimulatory activity, suggesting that live bacteria is necessary for the growth stimulation effect. To investigate the role of direct contact, live B. henselae were separated from HUVECs by a filter membrane (Millicell-CM insert). Even under this condition, an enhanced proliferation of HUVECs was observed. However, no morphological changes in the HUVECs were apparent compared to the B. henselae -infected cells. Furthermore, we isolated a nonpiliated strain of B. henselae that is unable to attach to and enter into endothelial cells. The nonpiliated strain possessed the ability to stimulate the proliferation of cocultivated HUVECs the same as the piliated strain. Moreover, the culture supernatants of B. henselae were also able to induce HUVEC proliferation. Our results indicate that the stimulation of HUVEC proliferation by B. henselae is mediated by soluble factor(s) secreted from the bacteria.

Angiomatosis, Bacillary↗
PubMed2004

Bartonella henselae infection presenting as a unilateral panuveitis simulating Vogt-Koyanagi-Harada syndrome.

PURPOSE: To report an unusual ocular manifestation of cat scratch disease. DESIGN: Observational case report. METHODS: Review of the clinical, laboratory, photographic, and angiographic records of a patient with cat scratch disease. RESULTS: A 54-year-old woman presented with counting fingers visual acuity in the right eye associated with optic disk edema, diffuse choroidal thickening, and panuveitis. Fluorescein angiography showed disk leakage and hyperfluorescent spots with late leakage suggestive of Vogt-Koyanagi-Harada disease. She was diagnosed with cat scratch disease by serum antibody titers and clinical course. CONCLUSIONS: Ocular manifestations of cat scratch disease can include diffuse thickening of the choroid. Cat scratch disease may manifest with angiographic features suggestive of Vogt-Koyanagi-Harada disease.

Anti-Bacterial Agents↗