Bartonellosis pathophysiology: Difference between revisions
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==Pathophysiology== | |||
In mammals, each ''Bartonella'' species is highly adapted to its reservoir host as the result of intracellular parasitism and can persist in the bloodstream of the host. Intraerythrocytic parasitism is only observed in the acute phase of [[Carrion's disease|Carrión´s disease]]. ''Bartonella'' also have a tropism for endothelial cells, observed in the chronic phase of [[carrion's disease|Carrión´s disease]] (also known as ''Verruga Peruana'') and [[bacillary angiomatosis]]. | |||
Pathological response can vary with the immune status of the host. Infection with ''[[Bartonella henselae]]'' can result in a focal suppurative reaction (CSD in immunocompetent patients), a multifocal angioproliferative response ([[bacillary angiomatosis]] in immunocompromised patients), [[endocarditis]] or [[meningitis]]. | |||
Some of the diseases can resolve spontaneously without treatment.<ref>{{cite journal |author=Resto-Ruiz S, Burgess A, Anderson BE |title=The role of the host immune response in pathogenesis of ''Bartonella henselae'' |journal=DNA Cell Biol. |volume=22 |issue=6 |pages=431–40 |year=2003 |month=June |pmid=12906736 |doi=10.1089/104454903767650694}}</ref> | |||
===Microbiology=== | |||
Members of the genus ''Bartonella'' are facultative intracellular bacteria, alpha 2 subgroup Proteobacteria. The genus comprises: | |||
{| class="wikitable" | |||
|- | |||
! ''Bartonella'' species | |||
! Reservoir | |||
! Disease | |||
|- | |||
| ''[[Bartonella bacilliformis]]'' | |||
| human | |||
| [[Carrion´s disease]]/[[Verruga peruana]] | |||
|- | |||
| ''[[Bartonella quintana]]'' | |||
| human | |||
| [[Trench fever]], [[bacteremia]], [[bacillary angiomatosis]], [[endocarditis]] | |||
|- | |||
| ''[[Bartonella henselae]]'' | |||
| cats | |||
| [[Cat scratch disease]], [[bacillary angiomatosis]], [[bacteremia]], [[endocarditis]] | |||
|- | |||
| ''Bartonella elizabethae'' | |||
| rats | |||
| [[Endocarditis]] | |||
|- | |||
| ''Bartonella grahamii'' | |||
| | |||
| [[Retinitis]] | |||
|- | |||
| ''Bartonella vinsoni'' | |||
| dogs | |||
| [[Endocarditis]], [[bacteremia]] | |||
|- | |||
| ''Bartonella washonsis'' | |||
| rodents | |||
| [[Myocarditis]] | |||
|- | |||
| ''Bartonella clarridgiae'' | |||
| cats | |||
| [[Bacteremia]] | |||
|- | |||
| ''[[Bartonella rochalimae]]'' | |||
| human | |||
| [[Carrion´s disease]] like syndrome | |||
|} | |||
==References== | ==References== | ||
Revision as of 20:51, 11 December 2012
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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]
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Pathophysiology
In mammals, each Bartonella species is highly adapted to its reservoir host as the result of intracellular parasitism and can persist in the bloodstream of the host. Intraerythrocytic parasitism is only observed in the acute phase of Carrión´s disease. Bartonella also have a tropism for endothelial cells, observed in the chronic phase of Carrión´s disease (also known as Verruga Peruana) and bacillary angiomatosis. Pathological response can vary with the immune status of the host. Infection with Bartonella henselae can result in a focal suppurative reaction (CSD in immunocompetent patients), a multifocal angioproliferative response (bacillary angiomatosis in immunocompromised patients), endocarditis or meningitis.
Some of the diseases can resolve spontaneously without treatment.[1]
Microbiology
Members of the genus Bartonella are facultative intracellular bacteria, alpha 2 subgroup Proteobacteria. The genus comprises:
| Bartonella species | Reservoir | Disease |
|---|---|---|
| Bartonella bacilliformis | human | Carrion´s disease/Verruga peruana |
| Bartonella quintana | human | Trench fever, bacteremia, bacillary angiomatosis, endocarditis |
| Bartonella henselae | cats | Cat scratch disease, bacillary angiomatosis, bacteremia, endocarditis |
| Bartonella elizabethae | rats | Endocarditis |
| Bartonella grahamii | Retinitis | |
| Bartonella vinsoni | dogs | Endocarditis, bacteremia |
| Bartonella washonsis | rodents | Myocarditis |
| Bartonella clarridgiae | cats | Bacteremia |
| Bartonella rochalimae | human | Carrion´s disease like syndrome |