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Acta Virol. 1999 Oct;43(5):273-8.

Induced production of nitric oxide and sensitivity of alveolar macrophages derived from mice with different sensitivity to Coxiella burnetii.

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Department of Bacteriology, Faculty of Medicine, Kagoshima University, Japan.


We compared in vitro sensitivities to Coxiella burnetii of alveolar macrophages, derived from mice sensitive and resistant to C. burnetii, respectively, and examined the role of nitric oxide (NO) in the C. burnetii infection. Alveolar macrophages of sensitive A/J mice showed a larger population of C. burnetii antigen-positive cells than those of resistant C57BL/6 mice. C. burnetii induced NO production in alveolar macrophages, but N-methyl-L-arginine and sodium nitroprusside (SNP), NO inhibitor and donor, respectively, did not inhibit the infection. Thus the NO induction seems to be independent of the cell defense mechanism against the C. burnetii infection.

[Indexed for MEDLINE]

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