Fig. 3From: Inhibition of Neuronal Nitric Oxide Synthase Increases Aggressive Behavior in Mice In vivo inhibition of nNOS in animals treated with 7-nitroindazole. Citrulline (Cit) and neuronal nitric oxide synthase (nNOS) staining in the dorsal amygdaloid area of animals treated with 7-NI or oil-vehicle (Ctrl). There is a virtual abolishment of neuronal citrulline staining in the 7-NI-treated group, while nNOS staining appears unchanged.Back to article page