NTF3 and Alzheimer disease: Neurotrophin-3 mRNA and protein levels are unchanged in the AD brain (Durany et al.2000; Hock et al.1998, 2000a; Murase et al.1994; Phillips et al.1991), besides a minor reduction of NT-3 in the motor cortex of AD patients, a brain structure often preserved in AD (Narisawa-Saito et al.1996).