Figure 5: Prieurianin inhibits adipogenesis. (A), Prieurianin inhibits the differentiation of OP9 cells into adipocytes, stained with Oil Red O. TNFa, a cytokine and potent inhibitor of differentiation, is used as control. (B), Prieurianin causes either dedifferentiation or delipidation of differentiated adipocytes, stained with Nile Red, compared to untreated and vehicletreated adipocytes. TNFα, which causes lipolysis, serves as control. All experiments were performed for at least three or more times and representative micrographs of the experiments were shown.