Alterations in the distribution of different neurotrophic factors and in the expression of their receptors such as the brain-derived neurotrophic factor (BDNF) have been described in AD.
Ændringer i fordelingen af forskellige neurotrofiske faktorer og i deres receptorers udtryk som den såkaldte Vækstfaktor BDNF (fra engelsk: brain-derived neurotrophic factor) er blevet beskrevet i AD.