Methods for reducing MSK1 levels in a plurality of cells are disclosed. For example, the methods include providing to the cells a curcumin composition that is at least 5% curcumin III. Methods for inhibiting MSK1 serine376 phosphorylation in a plurality of cells are also disclosed, which include providing to the cells a curcumin composition that is at least 5% curcumin III. In addition, methods for ameliorating inflammation in a subject are disclosed, which include providing to a subject a curcumin composition that is at least 5% curcumin III. Still further, methods for ameliorating symptoms in a subject having glucocorticoid-resistant inflammatory disease are disclosed, which include providing to a subject a curcumin composition that is at least 5% curcumin III. In addition, compositions are disclosed that include a curcumin composition consisting of at least 5% curcumin III glucocorticoids and a pharmaceutically acceptable solvent, filler, or carrier.