- Expression of V-1, a novel catecholamine biosynthesis regulatory protein, is enhanced by hypertension in atrial myocytes of Dahl salt-sensitive rats. Yamakuni, T., Hashimoto, M., Sakagami, H., Yamamoto, T., Kobayashi, M., Fujii, Y., Yamamoto, H., Rohra, D.K., Hiwatashi, Y., Honma, T., Kondo, H., Shido, O., Ohizumi, Y. Biochem. Biophys. Res. Commun. (2002)