NGF and myocardial infarction: Indeed, NGF levels extensively increase after MI (whereas its expression decreases during heart failure and ventricular injury), triggering the sprouting of neurites and neuronal modifications (Davis et al., 1988; Hassankhani et al., 1995; Cao et al., 2000a; Zhou et al., 2004; Oh et al., 2006; Lorgis et al., 2009).