3,4-Dimethoxychalcone is a natural product found in the flowers of Arrabidaea brachypoda.

BPDBA is an effective, selective, and non-competitive inhibitor of the betaine/GABA transporter (BGT-1), displaying inhibitory activity against human BGT-1 and mouse GAT2, with IC50 values of 20 μM and 35 μM, respectively.

Toringin, a bioflavonoid, is isolated from the bark of Docyniopsis tschonoski. Toringin progressively decreases not only the cis-effect of the expanded CTG repeats but cytotoxicity as well. Exposure to isosakuranetin, Toringin rescues PC12 neuronal cells. Flavonoids are efficacious for ameliorating the RNA gain of function caused by expanded CTG repeats, and have various biological activities and beneficial actions against cancers, coronary heart disease, among other pathologies.