- Glucocorticoid inhibits expression of V-1, a catecholamine biosynthesis regulatory protein, in cultured adrenal medullary cells. Hiwatashi, Y., Kurahashi, Y., Hatada, R., Ueno, S., Honma, T., Yanagihara, N., Yanase, H., Iwanaga, T., Ohizumi, Y., Yamakuni, T. FEBS Lett. (2002)