A method of diagnosing Alzheimer's disease by the determination of the levels of the hormones somatotropin (human growth hormone) and somatomedin-C (IGF-I) after the administration of the L-dopa provocative test. Blood-sera samples are taken every thirty minutes for a two hour period after the administration of L-dopa, and the samples are tested for the levels of these hormones. These levels are then compared against the levels for normal subjects in the age group of between fifty and sixty. If the levels of the patient being diagnosed falls below the statistical mean corrected for error, then a diagnosis of Alzheimer's disease is indicated.
Method of diagnosing Alzheimer's disease