- Comparison of mice deficient in the high- or low-affinity neurotensin receptors, Ntsr1 or Ntsr2, reveals a novel function for Ntsr2 in thermal nociception. Maeno, H., Yamada, K., Santo-Yamada, Y., Aoki, K., Sun, Y.J., Sato, E., Fukushima, T., Ogura, H., Araki, T., Kamichi, S., Kimura, I., Yamano, M., Maeno-Hikichi, Y., Watase, K., Aoki, S., Kiyama, H., Wada, E., Wada, K. Brain Res. (2004)