NOS1 and myocardial infarction: Targeted gene transfer of nNOS to parasympathetic neurons increases parasympathetic activity in pigs (Heaton et al., 2005) and guinea‐pigs (Mohan et al., 2002), and also restores parasympathetic function in spontaneously hypertensive rats (Heaton et al., 2007) and guinea pigs following acute MI (Dawson et al., 2008).