Novel application of triterpenoid acid compound as A beta fiber formation inhibitor drug

The invention relates to novel application of a triterpenoid acid compound as an A beta fiber formation inhibitor drug, and particularly relates to application of the triterpenoid acid compound in the A beta fiber formation inhibitor drug. The triterpenoid acid compound is at least one of polyporus umbellatus acid C, dehydro-geosolic acid and geosolic acid. Multiple aspects verify that the triterpenoid acid compound can remarkably inhibit formation of A beta fibers, save PC-12 cells induced by A beta (1-42), reduce the A beta content of caenorhabditis elegans AD and improve the behavior ability of caenorhabditis elegans AD. Molecular docking results show that the triterpenoid acid compound has good binding performance with A beta. The compound capable of inhibiting formation of the A beta fibers is researched, and the compound has very important social significance in developing drugs for neuroprotection. 本发明涉及了一种三萜酸类化合物作为Aβ纤维形成抑制剂药物的新用途，具体涉及一种三萜酸类化合物在Aβ纤维形成抑制剂药物中的用途；所述三萜酸类化合物为猪苓酸C、去氢土莫酸和土莫酸中的至少一种。经过多方验证，本发明提