Among the related, coloring matters are : chrysin from poplar buds, apigenin from parsley, luteolin from weld, mignonette and dyer's broom, fisetin from young fustic and yellow cypress, galangin from galangal root, and myricetin from " Nageia nagi ".
12.
In studies conducted on cells in a laboratory, fisetin inhibits the activity of several pro-inflammatory cytokines, including tumor necrosis factor alpha, interleukin 6, and Nuclear factor kappa B . It has also has been shown in lab studies to upregulate glutathione, an endogenous antioxidant.
