A neurotrophic rationale for the therapy of neurodegenerative disorders.

The concept and rationale for neuroprotection are presented. Several examples of small molecule neurotrophic agents with favourable drug-like and pharmacological properties are shown. Compound efficacy in acute neurodegenerative models (optic nerve axotomy) and chronic neurodegenerative models (glaucoma, age-associated cognitive impairment, Alzheimer's Disease) are evaluated and discussed. Targeting neurotrophin receptors with ligands that activate survival pathways or inhibit death pathways is an alternative worth pursuing.