摘要

Aggregates of amyloid beta (A) peptides are believed to be responsible for the neuropathology of Alzheimer's disease. In this work, ferrocene (Fc) is attached to the aggregating core of the A peptides, KLVFFAE. Inhibition of Fc-KLVFFAE aggregation by curcumin, a natural compound, was monitored by HPLC-electrochemical detection (HPLC-EC). The Fc oxidation current is dependent on the incubation condition and curcumin can retain Fc-KLVFFAE in its monomeric form. We demonstrate that tagging Fc to KLVFFAE affords a cost-effective and electroactive mimicry of A(142) and HPLC-EC is suitable for sensitive, reproducible, and facile screening of drugs for inhibiting the aggregation of A peptides.

  • 出版日期2013-7