- Overexpression of pituitary adenylate cyclase-activating polypeptide in islets inhibits hyperinsulinemia and islet hyperplasia in agouti yellow mice. Tomimoto, S., Hashimoto, H., Shintani, N., Yamamoto, K., Kawabata, Y., Hamagami, K., Yamagata, K., Miyagawa, J., Baba, A. J. Pharmacol. Exp. Ther. (2004)