COMPOSITIONS FOR IMPROVING BRAIN OR COGNITIVE FUNCTION

摘要

PURPOSE: Compositions for improving brain or cognitive function are provided, thereby effectively improving brain or cognitive function and preventing or treating brain neuronal diseases with less of side-effects. CONSTITUTION: The composition for improving brain or cognitive function comprises (a) a pharmaceutically effective amount of silk peptide produced by decomposition of silk protein; and (b) pharmaceutically acceptable carriers, wherein the silk protein is silk sericin or silk fibroin; the decomposition of silk protein is carried out by using calcium solution such as calcium chloride, acid hydrolysis, protein decomposing enzyme such as thermoase, flavourzyme, sumizyme, protamex and protin, and a combination thereof; the average molecular weight of the silk peptide is 200 to 100,000 dalton; and the brain or cognitive function is studying ability, memory ability or concentration ability.