- Transgenic mice overexpressing the full-length neurotrophin receptor TrkC exhibit increased catecholaminergic neuron density in specific brain areas and increased anxiety-like behavior and panic reaction. Dierssen, M., Gratac??s, M., Sah??n, I., Mart??n, M., Gallego, X., Amador-Arjona, A., Mart??nez de Lagr??n, M., Murtra, P., Mart??, E., Pujana, M.A., Ferrer, I., Dalf??, E., Mart??nez-Cu??, C., Fl??rez, J., Torres-Peraza, J.F., Alberch, J., Maldonado, R., Fillat, C., Estivill, X. Neurobiol. Dis. (2006)