scholarly journals Regulation of smooth muscle by inducible nitric oxide synthase and NADPH oxidase in vascular proliferative diseases

2008 ◽  
Vol 44 (7) ◽  
pp. 1232-1245 ◽  
Author(s):  
Roman Ginnan ◽  
Benjamin J. Guikema ◽  
Katharine E. Halligan ◽  
Harold A. Singer ◽  
David Jourd'heuil
Keyword(s):  
Nitric Oxide ◽  
Smooth Muscle ◽  
Nitric Oxide Synthase ◽  
Nadph Oxidase ◽  
Inducible Nitric Oxide Synthase ◽  
Vascular Proliferative Diseases ◽  
Oxide Synthase ◽  
Inducible Nitric Oxide

scholarly journals virB-Mediated Survival of Brucella abortus in Mice and Macrophages Is Independent of a Functional Inducible Nitric Oxide Synthase or NADPH Oxidase in Macrophages

2002 ◽  
Vol 70 (9) ◽  
pp. 4826-4832 ◽  
Author(s):  
Yao-Hui Sun ◽  
Andreas B. den Hartigh ◽  
Renato de Lima Santos ◽  
L. Garry Adams ◽  
Renée M. Tsolis
Keyword(s):  
Nitric Oxide ◽  
Nitric Oxide Synthase ◽  
Nadph Oxidase ◽  
Inducible Nitric Oxide Synthase ◽  
Brucella Abortus ◽  
In Vivo Models ◽  
Oxide Synthase ◽  
Inducible Nitric Oxide

ABSTRACT The Brucella abortus virB locus is required for establishing chronic infection in the mouse. Using in vitro and in vivo models, we investigated whether virB is involved in evasion of the bactericidal activity of NADPH oxidase and the inducible nitric oxide synthase (iNOS) in macrophages. Elimination of NADPH oxidase or iNOS activity in macrophages in vitro increased recovery of wild-type B. abortus but not recovery of a virB mutant. In mice lacking either NADPH oxidase or iNOS, however, B. abortus infected and persisted to the same extent as it did in congenic C57BL/6 mice up until 60 days postinfection, suggesting that these host defense mechanisms are not critical for limiting bacterial growth in the mouse. A virB mutant did not exhibit increased survival in either of the knockout mouse strains, indicating that this locus does not contribute to evasion of nitrosative or oxidative killing mechanisms in vivo.

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