FIG. 3.
NO is not produced by stimulated cells from infected iNOS-KO mice. Peritoneal exudate cells from naïve and infected (108 dpi) C57BL/6J (WT) and Nos2tm1Lau mice were cultured in medium alone or medium containing 100 U of IFN-γ/ml and 10 ng of LPS/ml. After 48 h supernatants were collected and assayed for nitrite levels with the Griess reaction.