Present progress and future development in the therapy for Alzheimer's disease.

The following is a review of the present progress and future development in the experimental therapy of Alzheimer disease (AD). Four different approaches are considered, first a molecular genetic one, second neuropeptide delivery, third trophic factors administration and fourth a cholinergic approach. Advantages and disadvantages of presently applied therapeutical experiments are analyzed and discussed together with the author's own experience and results.